2001 Vol. 9, No. 4

  Previous Issue | Next Issue 
Display Method:
Study on some problems of eco-agricultural construction
LIU Si-Hua
2001, 9(4): 1-5.
Abstract(1309) PDF(876)
Abstract:
The importance and urgency of strengthening eco-agricultural construction are analyzed in the new century.Objectives, tasks, claims, modes of management, and industrial forms of eco-agricultural development are stated also.Ecoenvironmental and eco-agricultural construction on a large scale, enhancement of foundation status of agriculture and eco-agricultural construction, establishment of ecological county strategy and eco-agricultural development strategy must coordinately develop to strengthen eco-agricultural construction. System, technique, ecology must be organically unified to construct Chinese eco-agricultural development models and develop a coordinate way of agricultural modernization,ecologilization,knowledgezation and sustainable development.
Ecoenvironmental problems and countermeasures in the extensive development of West China
SHEN Yuan-Cun
2001, 9(4): 6-8.
Abstract(759) PDF(827)
Abstract:
For the purpose of establishing a good ecoenvironment in West China, four characteristics of the region are analyzed in this paper. It is pointed out that the key problems of ecoenvironment worsened are the amelioration in lower efficiency and the slow improvements of ecoenvironment. Four reasons of inefficient amelioration are given in the paper, and the objectives and countermeasures of ecoenvironmental construction in West China are put forward.
Study on eco-economic management of typical weak ecosystem region in China
WANG Guo
2001, 9(4): 9-12.
Abstract(1179) PDF(958)
Abstract:
There are a large number of types, wide region, and fast evolvement of weak ecosystem regions in China. Now, China is faced with WTO and exploitation of the West and the old managing modes of weak ecosystem region in China are challenged. The classification, managing aim and principle, the mechanism of management system,the managing modes, and managing countermeasures are discussed and some successful examples are also introduced.
International practice of coordinated development of economy and environment and its inspiration to China
CHEN Yu-Ping, DONG Suo-Cheng, XU Min-Ying
2001, 9(4): 13-17.
Abstract(1556) PDF(977)
Abstract:
Developed countries have taken a route of “the pollution and treatment” in their industrialization. The experiences and lessons in harmony development of economy and environment are probed by studying harmony succession process of every country in its industrialization. It will provide foundation theories for the realization of sustainable development in China.
Abrupt rise of Blue Revolution in the 21st century
ZHANG Zheng-Bin, LIU Meng-Yu, ZHONG Guan-Chang, ZHANG Jian-Hua, YUAN Ping
2001, 9(4): 18-23.
Abstract(1426) PDF(1106)
Abstract:
Norman E. Borlaug, Nobel Prize Laureate for peace in 1970, suggested “Blue Revolution-more crop for every drop” in 1999. According to the situation of water resources and the strategy for regulating water stress in China, five stratagems of research and management for carrying out“Blue Revolution” were suggested such as exploring rainfall from atmosphere, conservation and regulation of rainfall, macroscopic regulation of water resources from different regions, water saving agriculture, biological water saving. The guick advances in study genetics and breeding of crop drought resistance and water use efficiency, especially in gene locating and transgenic crop are notable. Our new research advance in water use efficiency in wheat is also introduced. Finally, it is pointed out that agriculture in the 21st century will be of high technology and high efficiency,combining with traditional breeding and transgenic technology. More new good crop varieties will be brought out in future, that are characterized by good pest and disease resistance, unfavorable stress resistance, and efficient use of nutrition, water, solar energy.
Effects of high-density suspended sediments on primary production at the Yangtze Estuary
HE Wen-Shan, LU Jian-Jian
2001, 9(4): 24-27.
Abstract(1565) PDF(1105)
Abstract:
Suspended sediments from the Yangtze River and re-suspended sediments caused by tidal disturbance form a high turbidity area with a transparency of lower than 3m at the Yangtze Estuary. Light limitation resulting from suspended sediments is stronger than nutrient released to the estuarine ecosystem, which makes the primary production, biodiversity and density at a lower level at the area than adjacent sea. It is estimated that the absorption and assimilation ability of phytoplankton at the Yangtze Estuary are 66400t/km2·a for N and 9220t/km2·a for P, which are only 10.5% of other coastal areas with higher bio-productivity and photosynthesis, such as California Coast Zone. Thus, the ability of absorption and assimilation for nutrients is weakened by high-density suspended sediments, which indirectly enhance the eutrophication outside the turbidity area and become a potential factor for the red tide.
Study on species and population characteristics of microorganisms in the water body of Jinji Lake and Shang Lake
LI Meng-Ying, SONG Xue-Hong, LING Qu-Fei, XU Hong-Qing
2001, 9(4): 28-30.
Abstract(1319) PDF(976)
Abstract:
Species and population of microorganisms in the water body of Jinji and Shang lakes had been investigated from June 1998 to October 1999. The results show that the amount of heterotrophic bacteria is 17000～260000/mL in the Jinji Lake, being higher than that in the Shang Lake(500～80000/mL),and its highest density appeares in October;densities of actinomyces and molds are lower, 0～19/mL, 0～7/mL in the Jinji Lake and 1～25/mL,0～37/mL in the Shang Lake, respectively; amount of coliform is higher in the Jinji Lake than in the Shang Lake, 350～16000/L and 20～250/L, respectively, suggesting that the enrollment of waste water and fertilizer application for fishing in the Jinji Lake have significant effect on the amount of coliform; 8 genera in the Jinji Lake and 9 genera in the Shang Lake have been found and the dominant groups are Vibrion, Aeromonas, Bacillus and Acinetobacter, Pseudomonas, Bacillus, respectively.
Effects on the mycelia growth and sporeforming of Ascosphaera apis under ecological condition of nutrients
LIANG Qin, CHEN Da-Fu, WANG Jian-Ding
2001, 9(4): 31-34.
Abstract(942) PDF(1005)
Abstract:
The effects on the mycelia growth and sporeforming of A.apis under ecological condition of nutrients-carbon and nitrogen sourse, vitamin and mineral elements are analyzed. The results show that the fungus grow best in D-fructose, spore-forming best in D-glucose but no growth occurs in D-mannose and D-sorbose. Except NaNO2 and H2NCSNH2,the fungus give priority to utilize organic nitrogen sources. Vitamins have distinctive promoting effect on the sporeforming of A. apis, and the effect of mixed application of several vitamins is more efficient than any single one. Mg2+、P5+、K+ and Zn2+ can promote the sporeforming and growth of the fungus, Na+ constrains the growth of the mycelia of A. apis.
Study on the biological characters of nectary of Gossypium arboreum bickii
LI Cui, ZHANG Bo-Jing
2001, 9(4): 35-38.
Abstract(806) PDF(877)
Abstract:
The distribution, morphology and structure of nectary of a new cotton species named allotetraploid Gossypium arboreum bickii which was bred artificially in Shanxi Agricultural University are studied by using the technology of tissue section through Light Scanning Electron Microscope(SEM) and Transmission Electron Microscope(TEM).Results show that nectaries are distributed in both leaves and flowers, moreover, the structure of all nectaries are similar which are generally composed of secretory cell, stalk cell, foot cell, and subgland; the organelles appear abundant in the cell of nectary tissue, such as mitochondrions, ribosomes and endoplasmic reticula, and big and clear nucleus and nucleolus, showing that there are many active and vigorous metabolism in nectary tissue.
Soil degradation and sustainable management of Chinese fir plantation
LIN Kai-Min, YU Xin-Tuo
2001, 9(4): 39-42.
Abstract(1555) PDF(1152)
Abstract:
According to research information of soil degradation of Chinese fir plantation in recent twenty years, the external phenomena and internal mechanisms of soil degradation of Chinese fir plantation have been reviewed and analyzed. The methods and techniques to improve soil fertility of Chinese fir plantation are also put forward, and it will provide scientifical and theoretical guidance with sustainable management of Chinese fir plantation.
Analysis of the seed plant flora in the nature forests of Niumulin nature reserve zone, Fujian Province
LI Yu-Hong
2001, 9(4): 43-45.
Abstract(1347) PDF(1016)
Abstract:
The study on the flora of six nature forests shows that the composition of plant species is abundant in the nature forests of Niumulin nature reserve zone, there are 248 species of high plants in 2900 m2 area, which belong to 153 genera in 82 families. Among them, 16 species of 14 genera in 11 families are pteridophte, and 3 species of 3 genera in 3 families are Gymnosperm, and 229 species of 136 genera in 71 families are Angiosperm. The coefficient of genus is 61.69. On the distribution pattern of gunus, the tropic distribution pattern is the main floristic element. 63.36% of the genera in the nature forests belongs to tropic, and 32.82% of the genera belongs to temperate, which shows the geographical characteristics of Niumulin nature reserve zone that lies in northern edge of South Subtropical Area.
Agroforestry development in West China
LIU You-Zhao, CHEN Li-Gen
2001, 9(4): 46-48.
Abstract(1657) PDF(1035)
Abstract:
Agroforestry can control soil erosion and develop agriculture. The action and some practice models of agroforestry in West China are demonstrated, and the problems affecting agroforestry development are also analyzed. Finally, some countermeasures are put forward to promote the development of agroforestry in West China.
Problems and countermeasures of returning farmland to forestland and grassland in Bashang Areas,Hebei Province
HUANG Xuan-Rui, YAO Qing-Liang, LU Shao-Bo, YANG Sheng-Mao, BAI Chen-Biao
2001, 9(4): 49-51.
Abstract(1260) PDF(1245)
Abstract:
The problems of returning farmland to forestland and grassland in Bashang Areas,Hebei Province are stated. It is pointed out that the key of bringing returning farmland to forestland and grassland project into effect depends on returning farmland to forestland and grassland project combined with regional industry structure regulation,farmer's economical profits.The major tasks include rational districting criteria, condition,scope,vegetation returning criteria and indexes systems,studing and assembling the models of returning farmland to forestland and grassland corresponding to different degraded ecosystems,screening out the dissemination models through monitoring and evaluating, constructing the land property rights, profit allocation system and form of organization management which fit the demands of market economy. Finally,the countermeasures of returning farmland to forestland and grassland are put forward.
Study on changes of land use and land cover based on RS and GIS technology
MAO Xue-Sen, Tony JAKEMAN, Claude DIETRICH
2001, 9(4): 52-53.
Abstract(1753) PDF(1609)
Abstract:
Based on RS and GIS technology, the land use and land cover are classified to six types,and their changes and distribution from 1985 to 1990 and from 1990 to 1995 in mountainous area,Northen Thailand are analyzed. The results show that forest area is declined dramatically,but area of farmland,grassland, bareland and town increased. The change tendency is from forest to farmland,grassland and town. Most of the changes occur in flat area.
The exploration on the ecological preservation planning of arable land
WANG Wan-Mao, LI Zhi-Guo
2001, 9(4): 54-57.
Abstract(1228) PDF(1079)
Abstract:
Based on defining the ecological preservation planning of arable land,the principle, contents, planning procedure,and means of the ecological preservation planning of arable land are stated.Finally,the policy proposal with working out and evaluating the planning are put forward.
Important progress on research development and countermeasures of dry land agriculture in North China
XIN Nai-Quan, HOU Xiang-Yang, ZHANG Yan-Qing
2001, 9(4): 58-60.
Abstract(1137) PDF(1145)
Abstract:
Through the systematic survey during the Sixth Five Years Plan's period and tackling key problems in science and technology since the Seventh Five Years Plan's period, significant progresses of scientific research and development of dry land agriculture in North China have been achieved, dry land agriculture models with Chinese characteristics and technological systems of agriculture, forestry and husbandry comprehensive development formed, and new breakthrough in such aspects as water collecting and economically irrigating techniques, farming covering techniques and theorys of water and fertilizers coordinating model have been gained also. The dry land agriculture in North China will develop significantly in 21st century. A series of countermeasures to promote sustainable development dry land agriculture in North China are put forward.
Water-collecting eco-agriculture and the sustainable development of agriculture in Northwest Regions
YU Fa-Wen
2001, 9(4): 61-62.
Abstract(1268) PDF(955)
Abstract:
Agriculture is the basis for the development of West China.The shaking off poverty of farmers is the first issue and the basic target. The ecoenvironment for the agricultural production in the Northwest Region is very poor. Thus, in the process of development of West China,the reconstruction of ecoenvironment must be closely integrated with the shaking off poverty of farmers and the agricultural, rural economic development. Taking the watercollecting ecoagriculture, which suits the regional features, not only can raise the ability of agricultural production and the farmers' income, but also gain the certain ecological benefits. The water-collecting eco-agriculture is the effective model for the sustainable development of agriculture and the progressive restoration and reconstruction of ecoenvironment in the Northwest Regions.
Study on spatial variability of soil nutrient in saline area,Lower Haihe Plain
MAO Ren-Zhao
2001, 9(4): 63-66.
Abstract(1000) PDF(1143)
Abstract:
The spatial structures of six soil properties in the saline and waterlogging land(2700m×2100m) region in Lower Haihe Plain are analyzed by means of the geostatistics.The results show that there exists perfect semivariance structure for the spatial variability of main soil attributes such as total N,available N,available P,available K and organic matter,other than total P,under the rotation of tillage situation.The semivariograms can be fitted by exponential and spherical models and the limit distance of spatial correlation is 340～1173m.The proportion of structural variance to sill is in a high level,over 40%.
Influence of chemical and biological properties under long-term applying organic manure and chemical fertilizers on fluvo-aquic soils
WANG Shen-Qiang, JIANG Qi-Ao, QIN Sheng-Wu, GU Yi-Chu
2001, 9(4): 67-69.
Abstract(1430) PDF(1636)
Abstract:
The influence of chemical and biological properties under long-term applying organic manure and chemical fertilizers on fluvo-aquic soils is studied.The results show that both organic manure and chemical fertilizers increase soil fertility,cation exchange capacity,exchangeable base,amount of microbe,microbial biomass C and enzyme activity,but organic manure is obviously superior to chemical fertilizer in improving soil chemical and biological characteristics.
Dynamic of denitrification rate and N2O flux in maize field
ZHANG Yu-Ming, DONG Wen-Xu, ZENG Jiang-Hai, CHEN De-Li
2001, 9(4): 70-72.
Abstract(1073) PDF(1145)
Abstract:
Denitrification rates and N2O fluxes are measured by using the acetylene inhibition method on intact soil cores in different N－fertilized maize plots.The relationships among denitrification rate and N2O flux with soil moisture,soil temperature and NO-3-N concentration in soil are analyzed,and losses of N－fertilizer caused by denitrification and N2O emission are calculated.The results show that denitrification loss from soil is 0.67～3.85kg/hm2 during the growing period of maize,percentage of denitrification loss from N－fertilizer is 0.5%～1.5%,the total N2O emission is 0.55～1.42kg/hm2,and N2O emission coefficient of N－fertilizer is 0.2%～0.5%.
The important significance of applying molybdenum fertilizer in increasing yield of leguminous crops in agriculturalpastoral economy area
SUN Jian-Hua, TONG Yi-Ping, LIU Quan-You, LI Ji-Yun, ZHAO Ruo-Ying
2001, 9(4): 73-75.
Abstract(1653) PDF(1006)
Abstract:
The experiments of applying molybdenum fertilizer have been carried out in a typical area of agricultural－pastoral economy in Duolun County,Inner Mongolia.It is shown that content of available molybdenum in most of soils is low in that area.Molybdenum is an important element for leguminous crops to be utilized by nodule bacteria in nitrogen fixation and the crops are planted in a large area in that region.The yields of broad bean and kidney bean are increased by 33.7%～30.2% and 12.4%～9.4% by applying molybdenum.The practice followed in a large area will have major significance to the economic development in Northwest China.
Study of benefit of sweet orange orchard under contour hedgerow intercropping system
YUAN Yuan-Liang, SUN Hui, TANG Ya
2001, 9(4): 76-78.
Abstract(1209) PDF(1144)
Abstract:
A four-year study of sweet orange orchard under contour hedgerow intercropping system has been carried out in sloping farmland with a slope of 15°～38° at Ningnan Station for Sustainable Mountain Development,Chengdu Institution of Biology.Sweet orange trees are planted in the alleys between contour hedgerows of Leucena leucocephala and mulberry trees are planted within the hedgerows.Melon,vegetables and other economic crops are intercropped with orange.Biogas,raising of livestock and sericulture are also introduced to the system.Prunings from the hedgerows have been used as green manure,mulch materials,fodder and raw materials of biogas.The result of the study indicates that more income-generating options are provided to farmers.Economic,social and ecological benefits are apparent.A cost-benefit analysis of the contour hedgerow orange orchard in the initial four years suggests that the cost and benefit ratio is 1∶4.77 while it is 1∶3.27 under using of chemical fertilizers and pesticides.Soil fertility is improved,biodiversity level is enhanced,quality of products is improved of the contour hedgerow orange orchard.Therefore,contour hedgerow intercropping system seems to be a practicable way for development of pollution free agriculture,sustainable use of sloping land,and conservation of environment in mountain areas.
Changes of the phenolic acid in plough layer and its effects on the growth and yield of summer corn with returning wheat straw
ZHENG Hao-Hao, HU Xiao-Jun, JIA Jing-Ye, WU E, XING Jian-Jun
2001, 9(4): 79-81.
Abstract(1424) PDF(1161)
Abstract:
The changes of phenolic acid and its effects on the amount of fertilizers uptake and yield of summer corn are studied being caused by decaying wheat straw in the field.The results show that phenolic acid content is higher in the soil with returning wheat straw,the highest concentration of phenolic acid is observed at about the 40th day after the returning of wheat straw,the phenolic acid content is lower in the soil with fertilizer application,the influences of phenolic acid on the yield and the uptake of N and P is insignificant,but it can inhibit the growth of seedlings' root system.
Response of chlorophyll in tobacco leaves on Hg,Cd,Pb stress in soil-tobacco system
QI Min
2001, 9(4): 82-84.
Abstract(1310) PDF(1278)
Abstract:
Response of chlorophyll in tobacco leaves on Hg,Cd,Pb stress has been studied by pot experiment in soil-tobacco system.The results show that chlorophyll content and a/b value in tobacco leaves is gradually reduced with increase of Hg,Cd,Pb treatment concentration,whatever it is affected by single one element, two elements or three elements. It is significantly negative correlation between chlorophyll content and concentration of Hg,Cd,Pb.The effect of Hg,Cd,Pb on chlorophyll exists Cd treatment>Pb treatment>Hg treatment,single element treatment
Division of winter wheat planting area based on climate in Heilongjiang Province
ZU Shi-Heng, QU Cheng-Jun, GAO Ying-Zi, ZHOU Yong-Ji
2001, 9(4): 85-87.
Abstract(1580) PDF(1238)
Abstract:
According to the field experiments, production surveys, and the climate data of Heilongjiang Province in the past few years, five agricultural meteorological indexes including the winter cold, depth of snow accumulation, water content in the soil, temperature and wind speed in the turn green period, spring cold are put farward, which affects the safety of winter wheat during wintertime. These five indexes for the main index and other indexes for amending index, three winter wheat bands in Heilongjiang Province are divided including growing band, risk band and undaptable band. The production suggestions to develop the winter wheat are provided also in Heilongjiang Province.
Studies on the climate conditions and yield forecast models in the growing of cotton in Auhui Province
YANG Tai-Ming, CHEN Xiao-Yi
2001, 9(4): 88-90.
Abstract(1273) PDF(1068)
Abstract:
The yields of cotton have been lower and lower year after year, and not stable in Anhui Province. The cause resulting in this discrepancy has closely relation to the difference in climate condition, except for the artificial factors of the planting system, growth condition. From agro-meteorological angles, the effect of the climate condition in the growing of cotton is analyzed, and the forecast models of cotton yield are created in Anhui Province.
Research on climatic resources in Heilonggang summer early-maturing district
XIAO He-Xia, CHEN Jian-Zhong, LI Gui-Rong, XIAO Yun-Qing
2001, 9(4): 91-93.
Abstract(961) PDF(919)
Abstract:
Climatic resources in Heilonggang summer early-maturing district are researched. The results show that temperature is always the most important factor in all the climatic factors in the grain number and grain weight deciding period. The second important factor is the rainfall. The comprehensive effect of all climatic factors is more greater in the grain weight deciding period than the grain number deciding period. The effect of grain weight changes is double that of the grain number. The relationships of the ear grain number with daily mean temperature, daily sunshine time,and the amount of precipitation are positive logarithmic function, positive exponential function, and negative power function. During filling period there are negative and positive linear function relationships of grain weight with daily mean temperature and daily range of temperature. The relationship of the amount of precipitation with the grain weight is quadratic cure function. Comprehensively, growing early-maturing corn breeds in this area, the rainfall is generally surplus in the grain number deciding period, but in the filling period the rainfall is generally shortage. The quantity of heat is superfluous.
Preliminary study on the appropriate cultivating season of high-quality rice formation in Jianghan Plain
TIAN Xiao-Hai, HUANG Yong-Ping
2001, 9(4): 94-96.
Abstract(866) PDF(1104)
Abstract:
Appropriate cultivating season of high-quality rice formation in Jianghan Plain is analyzed by using the results on the relationship between the high-quality rice cultivation and the climatic conditions home and abroad, analyzing the climatic dates from 1954 to 1999 of Jingzhou that is situated in the center part of the Jianghan Plain. The mean temperature (T) is selected as the main factor, the growing period after 15～20d of heading is determined as the key period for high-quality rice formation. The main results show that the best cultivating season should be arranged to let the rice heading from the 25th Aug. to the start of Sept., the appropriate cultivating season is heading from the 22nd Aug. to the 5th Sept., approximately, the worst heading periods are the date before 10th Aug. and the date after 9th Sept. Moreover, the improvement in the variety, the soil and the microclimatic, however,will also be considerable factors in high quality rice production.
Analysis of ecological and environmental effects of coordination of farming and animal husbandry of “rice-ryegrass-goose”
ZHANG Wei-Jian, FENG Jin-Xia, ZHENG Jian-Chu, WU Kui, LI Xiao-Mei
2001, 9(4): 97-99.
Abstract(1330) PDF(1008)
Abstract:
According to the results of field experiments from 1997 to 1999,there is a significant control effect on winter weed after the coordination of farming and animal husbandry of rice-ryegrass-goose without any herbicide.The weed community density of winter-fallow-field afterrice/ryegrass just accounts for 8.88% of that afterrice/wheat in the second year.The weed community structure is also different,the percentages of Alopecurus aequalis Sobol.,Galium aparine linn.var.tenerum and Vicia sativa are 15.38%,30.77% and 30.77% respectively,monocotyledonous weed isn't the main weed in winter afterrice/ryegrass.At the same time,soil fertility has a big increase and the characteristics of soil chemical and physical are improved.Compared with the traditional pattern of rice/wheat,the content of total N,organic matter,effective N,effective P and effective K increase by 23.13%,27.10%,31.25%,98.37% and 46.73% respectively in the second year of rice/ryegrass-goose.Moreover,there is a big decrease of toxicant remaining because of the dosage decrease of herbicide and pesticide in the whole year.Finally,cropping and feeding technology for system coupling is summarized,and the development strategy is put forward in this paper.
A brief analysis of drought tolerance of crops and leaves water potential
SHEN Wei-Liang, LIU Jian-Guo
2001, 9(4): 100-101.
Abstract(1302) PDF(1624)
Abstract:
The distribution characteristics of water potential and drought tolerance of soybean,poanut,corn and sweet potato are analyzed with SPAC theory.The results show that the leaves water potential of crops is a physiological index reflecting the water content of crops,the difference of water potential between roots and leaves of corn is 0.293MPa and that among leaves is 0.067MPa.The leaves water potential is outstanding among different crops,that is more high and crops drought tolerance is more strengthened.
Effect on planting salt-tolerant wheat in salinized fields in Xinjiang
LUO Ting-Bin, REN Wei
2001, 9(4): 102-103.
Abstract(1495) PDF(1208)
Abstract:
The experiments of planting salt-tolerant wheat in salinized fields are conducted in Xinjiang.The results show that the efficiency of salt-tolerant wheat "Shidong5",which are planted in the abandoned and wasteland salinization field,is good and it has more high benefit than any other crops in economy and social intergration.Combining the salt-tolerant pasture of deep roots,the salt-tolerant wheat which is planted,can increase yield and productivity of the salinized fields,have realistic benefit and permanent effect in production.
Review on eco-agricultural assessment
CHEN Fei-Xing, ZHANG Zeng-Jie
2001, 9(4): 104-106.
Abstract(1383) PDF(1326)
Abstract:
Principles,methods,construction of index system,index weight and criteria of eco-agricultural assessment are systematically reviewed and application of fuzzy mathematics,holographic theory and artificial nervous network theory to the eco-agricultural assessment are mainly introduced also.In accordance with the problems existing in eco-agricultural assessment,some improving opinions are put forward.
The current status and countermeasures of eco-forestry construction in Gushi County,Henan Province
LI Zhong-Bao, LI Zhen-Ji, WU Lei, QI Xuan, FU Yuan-Zhong
2001, 9(4): 107-109.
Abstract(1354) PDF(1103)
Abstract:
Based on the current status of eco-forestry in Gushi County,Henan Province,guiding ideology,strategic objective,strategic emphases and the main countermeasures are put forward in the construction of eco-forestry.The effective ways to resume and extend the eco-forestry and to promote excellent circle of ecoenvironment are improving the function of the science and technology,changing the planting modes and using the different investments, etc.
A brief analysis on models of eco-tea industry in Anhui Province
LIAO Wan-You, WANG Chun-Yuan
2001, 9(4): 110-111.
Abstract(757) PDF(843)
Abstract:
Current situations and problems on ecosystem of tea gardens and eco-economic of tea in Anhui Province are resumed. Three models of eco-tea industry construction at various elevations(＞500m and ＜100m) and density of tea gardens are analyzed briefly.
Quicken the construction of eco-agriculture,improve the development of green food
ZHANG Jin-Song
2001, 9(4): 112-113.
Abstract(1354) PDF(1128)
Abstract:
The status,production principle, purpose, and significance of development green food in China are discussed. It is pointed out that the establishment of eco-agriculture is the basic of exploring green food and green food is the carrier of setting up eco-agriculture as well.Eco-agriculture and green food will be the strategic choice of the Chinese agriculture in future.
Practice and inspiration in improving market competitive power of agricultural products in Jiangsu Province
LU Jian-Fei
2001, 9(4): 114-116.
Abstract(685) PDF(941)
Abstract:
Based on a number of case studies in improving market competitive power of agricultural products in Jiangsu Province, some valuable enlightenments for enhancing market competitive power of agricultural products are given, such as improving the agricultural products quality,making agricultural products enter market, better applying technology, improving social supporting system and government behavior, and integrating management of agricultural products.
Study on the biogas pool of ZWD type and its application
HUANG Qin-Lou, CHEN Jin-Bo, QIAN Wu-Qiao, LIN Bin, QIAN Lei
2001, 9(4): 117-119.
Abstract(1241) PDF(1217)
Abstract:
The biogas pool of ZWD type is studied and popularized on the basis of characteristics of production and living in mountainous countryside. It has new design,safe and convenient construction and work,and high biogas-generating rate. 25 eco-energy villages are constructed in Jianyang city by making one village as a unit and making application of the biogas pool of ZWD type as a link. It can improve markedly the environment appearance and energy situation of countryside, protect forest resources, and promote development of plant-breed industry and sustainable agriculture after being made.
Study on optimizing scheme of stockbreeding development of Tianzhu County
YIN Dong, MA Xing-Xiang, LIU Ming-Chun, ZHANG Hui-Ling, FANG Guo-Tian
2001, 9(4): 120-122.
Abstract(1226) PDF(1219)
Abstract:
In order to achieve sustainable development of stockbreeding of Tianzhu County, Gansu Province, base on setting up decision-making model, laying stress on characteristics of resources, giving attention to ecological, economical, social benefit, present situation of stockbreeding of Tianzhu County is analyzed and the optimizing scheme of stockbreeding structure is put forward. This will underlie the decision-making for stockbreeding development of Tianzhu County.
Problems and countermeasures of water resources in our country
HUANG Guo-Qin
2001, 9(4): 123-125.
Abstract(1475) PDF(1548)
Abstract:
Water resources is relatively inadequent in China. The water resourcesper person owned is just equivalent to one-fourth of the world average level. Obviously, we are seriously confronted with the problem of lack of water. And it is quitely urgent to solve the problem. The importance and peculiarity of the water resources are analyzed and the main problems of water resources, some measures and ways to handle the problems are put forward:perfecting water law,adjusting water price, increasing water reserves,protecting water quality,recycling polluted water, desalining sea water, diverting southern water to north, developing economic-water agriculture, strengthening water sciences reasearch， et al.
Studies on the resources exploitation and sustainable development in the poor areas of China
BAO Xiao-Bin
2001, 9(4): 126-128.
Abstract(1204) PDF(1109)
Abstract:
Based on the harmony principle of environment, resource and economy, the diagnoses and analyses of the resource utilization in the poor areas of China have been conducted. The productive potentiality of resource has been evaluated with the typical examples. The measures of comprehensive management and regional countermeasures of sustainable development in the poor areas are put forward in this paper.
Improve the Chinese eco-agricultural construction to a new level
LIU Yu-Kai
2001, 9(4): 129-130.
Abstract(1393) PDF(1077)
Abstract:
The marked success of eco-agricultural construction in China is stated briefly.It is pointed out that constructing eco-agriculture is an efficient way to coordinately develop agroeconomy and environment,and it is an inevitable choice for agricultural sustainable development in China.Finally,some countermeasures of achievement eco-agricultural construction are put forward.

  冀ICP备05003362号-2

Address：286 Huaizhong Road, Shijiazhuang 050022, China

Tel：86-311-85818007E-mail：editor@sjziam.ac.cn

Supported by: Beijing Renhe Information Technology Co., Ltd.