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central gansu
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  甘肃中部
     Population, Resource, Environment and Poverty —a case study on the 18 underdeveloped counties in Central Gansu
     人口、资源、环境与贫困——以甘肃中部18个贫困县为例
短句来源
     Storage and utilization of rainwater and development of rural economy in central Gansu
     甘肃中部地区雨水蓄集利用与农村经济发展
短句来源
     An Analysis on the Surface Energy Budget of Dry Farmland in Central Gansu Province
     甘肃中部旱作农田地表能量收支特征分析
短句来源
     Influence on the Environment of Tao River Water Project in Central Gansu Province
     引洮工程对甘肃中部地区水生态环境的影响研究
短句来源
     The period experiment of phase space shown, the quasi 3 years period of annual precipitation of central Gansu is mainly in from 1950's to 1970's, the quasi 9 years period is signally in last 20 to 30 years.
     相空间序列的周期试验显示 ,甘肃中部的准 3a周期主要反映在 50~ 70年代 ,近 2 0~ 30a则以 8~ 9a周期较为明显 ;
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  陇中
     Variation of soil organic phosphorus fractions and contents under different tillages for long term was studied in the layer of 0~5 cm,5~10 cm,10~30 cm of calcareous soil in the Loess Plateau of central Gansu with the Bowman-Cole method.
     采用Bowman和Cole提出的有机磷分级体系,对陇中黄土高原0~5 cm、5~10 cm、10~30 cm不同耕作方式下土壤有机磷的组成变化进行了研究.
短句来源
     An experiment in the banlanced fertilization in semiarid area of central Gansu was conducted. The best yield was 24 216.7 kg/hm2 that was 1.2 times of local production level. Compared with the yield in non-P treatment,the treatment with 1/2 more P resulted in the of 7 510.8 kg/hm2(increased by 44.96%).
     在陇中半干旱区旱地进行了马铃薯平衡施肥试验,结果表明:马铃薯最高产量达24 216.7kg/hm2,是当地平均产量的1.2倍,高磷处理比无磷处理增产马铃薯7510.8 kg/hm2,增幅44.96%,1kg P2O5增产马铃薯25kg,纯收益增加3 262元/hm2,施磷效益极显著。
短句来源
     Coordinated Optimization of Farming and Animal Husbandry System "Four-Four-Two" Structure Model Ⅱ of Semiarid Agricultural Production in Central Gansu Province
     农牧系统协调优化模式研究——陇中旱区农业生产的“四四二”结构模式Ⅱ
短句来源
     Optimum Model of Land Use—"Four-Four-Two" Structure of Semi-arid Agricultural Production in Central Gansu Province
     土地优化利用模式研究 陇中旱区农业生产的“四四二”结构模式Ⅰ
短句来源
     Study on Yield and Water Effect and Physiological Properties of Wheat and Corn under Supplementary lrrigation with Catchment Rainfall in Semi-Arid Area of Central Gansu
     陇中半干旱区集雨补灌小麦玉米的产量水分效应及生理特性研究
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     Variation of soil organic phosphorus fractions and contents under different tillages for long term was studied in the layer of 0~5 cm,5~10 cm,10~30 cm of calcareous soil in the Loess Plateau of central Gansu with the Bowman-Cole method.
     采用Bowman和Cole提出的有机磷分级体系,对中黄土高原0~5 cm、5~10 cm、10~30 cm不同耕作方式下土壤有机磷的组成变化进行了研究.
短句来源
     An experiment in the banlanced fertilization in semiarid area of central Gansu was conducted. The best yield was 24 216.7 kg/hm2 that was 1.2 times of local production level. Compared with the yield in non-P treatment,the treatment with 1/2 more P resulted in the of 7 510.8 kg/hm2(increased by 44.96%).
     在中半干旱区旱地进行了马铃薯平衡施肥试验,结果表明:马铃薯最高产量达24 216.7kg/hm2,是当地平均产量的1.2倍,高磷处理比无磷处理增产马铃薯7510.8 kg/hm2,增幅44.96%,1kg P2O5增产马铃薯25kg,纯收益增加3 262元/hm2,施磷效益极显著。
短句来源
     Coordinated Optimization of Farming and Animal Husbandry System "Four-Four-Two" Structure Model Ⅱ of Semiarid Agricultural Production in Central Gansu Province
     农牧系统协调优化模式研究——中旱区农业生产的“四四二”结构模式Ⅱ
短句来源
     Optimum Model of Land Use—"Four-Four-Two" Structure of Semi-arid Agricultural Production in Central Gansu Province
     土地优化利用模式研究 中旱区农业生产的“四四二”结构模式Ⅰ
短句来源
     Study on Yield and Water Effect and Physiological Properties of Wheat and Corn under Supplementary lrrigation with Catchment Rainfall in Semi-Arid Area of Central Gansu
     中半干旱区集雨补灌小麦玉米的产量水分效应及生理特性研究
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  “central gansu”译为未确定词的双语例句
     A STUDY ON POPULATION PROBLEMS IN SEMI-ARID AREA OF THE LOESS PLATUEAU IN CENTRAL GANSU
     陇中黄土高原半干旱区人口问题研究
短句来源
     The Zuli River Basin in central Gansu Province is taken as a test area,and ArcGIS 8.3 is used as a main working platform.
     基本技术平台为ArcGIS 8.3软件。
短句来源
     Correlative Analyses of Crop Yields and Precipitation and Fertilizer Conditions in the Arid Regions in Central Gansu
     我省中部干旱地区作物生产与降水及肥力条件的相关分析
短句来源
     Analyses of the Geological Geomorphology Factors of Soil Erosion Difference between Northern Shaanxi and Central Gansu
     陕北和陇中土壤侵蚀区域差异的地质地貌之剖析
短句来源
     A Study on Soil Moisture Dynamics of Rotation Period on Different Field Type in Semi-arid Area of Central Gansu
     陇中半干旱地区不同地类轮作周期土壤水分动态研究
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The forms of the soil erosion in the region of Central Gansu Prov. is various and it is one of the reasons causing a huge amount of silt eroded.The forms of erosion can be divided into seven typies according to eroding forces,erosion by water,slope gravity erosion,erosion by wind, freezethaw erosion,subsurface-solution erosion,animal erosion and anthropogenic erosion erc,among which the erosion by water is the most important one because about eighty per cent of the total area is the erosion by water.The...

The forms of the soil erosion in the region of Central Gansu Prov. is various and it is one of the reasons causing a huge amount of silt eroded.The forms of erosion can be divided into seven typies according to eroding forces,erosion by water,slope gravity erosion,erosion by wind, freezethaw erosion,subsurface-solution erosion,animal erosion and anthropogenic erosion erc,among which the erosion by water is the most important one because about eighty per cent of the total area is the erosion by water.The forms of erosion mentioned above have six chara- cteristics as follows:1,From northwest to southea t,the region can be regionalized four districts.They are the eroding area eroded mainly by wind,the eroding area eroded mainly by wind and water,the eroding area eroded mainly by water and gravity and the eroding area eroded mainly by water;2,In central loess hilly and mountain district, sheet erosion with water has wide area and the great erosion intensity; 3,In the Ioess Liang hilly and loess mountain district,the plane consti- tution of the forms likes a tree obviously according to an unit of any little drainage area;4,In loess table district,the forms of the soil erosion have regularity of some vertical belt from surface of the table to the bottom of valley;5,With the seasons changing the constitution and the eroding intensity etc.of the soil erosion have also changed regularly;6,The red rock of the Tertiary system is eroded seriously.

陇中地区土壤侵蚀方式复杂多样,它是形成严重土壤侵蚀的主要原因之一。侵蚀方式有水力侵蚀、边坡重力侵蚀、风力侵蚀、冻融侵蚀、潜蚀溶蚀、动物侵蚀、人为侵蚀等。这些侵蚀中流水侵蚀分布范围最广,约占全区面积的80%,是最重要的一种侵蚀方式。侵蚀方式具有以下特点:1.在地域分布上,自西北向东南,可分为风力为主的侵蚀区、风力—流水为主的侵蚀区、流水—重力为主的侵蚀区和流水为主的侵蚀区;2.在中部黄土丘陵和山地区,流水的面状侵蚀分布广泛,但沟谷侵蚀、重力侵蚀强度大;3.在黄土梁状丘陵、黄土山地区,土壤侵蚀方式的平面组合,以小流域为单元,明显地呈树枝状结构;4.在黄土塬地区,由塬面至沟谷底,土壤侵蚀方式存在着垂直分带现象;5.随着季节的更迭,土壤侵蚀方式的组合、侵蚀强度等,也在有规律地变化着;6.本区第三系红色岩系侵蚀强烈。

In this paper, the relationship between irrigation water and irrigation cost was discussed by usiug the data of the twenty big and middle high head pumping irrigation areas in the arid zones of central Gansu province. Many factors affect the cost. under the con itions which the pumping head and the mixed ratio of crops are in general the same, irrigation water has a great influence upon the irrigation cost. So it is only when water-saving has been done on the whole area that the cost can be reduced.

本文根据甘肃中部干旱地区二十多个大中型高扬程电力提灌区的资料,分类比较了灌溉用水量与灌溉成本的关系。虽然影响灌溉成本的因素很多,但在泵站扬程、综合装置效率、灌区农作物构成比例等主要因素基本相同的高扬程电力提灌区,灌水定额是影响灌溉成本的最主要因素。灌区节水是泵站节能及降低灌溉成本的主要途径。

This paper sets forward the theory of agroecological environmental suitability and has set up models by fuzzy mathematics from analysing agroecological niches on the basis of modern ecological theory. Subordinate functions have been proposed of the agroecological environmental suitability in central Gansu province as an example of its application in arid regions. Indexes of agroecological climate resources, efficiency and the utilization coefficient have been calculated on the basis of the statistical...

This paper sets forward the theory of agroecological environmental suitability and has set up models by fuzzy mathematics from analysing agroecological niches on the basis of modern ecological theory. Subordinate functions have been proposed of the agroecological environmental suitability in central Gansu province as an example of its application in arid regions. Indexes of agroecological climate resources, efficiency and the utilization coefficient have been calculated on the basis of the statistical data in some of the meteorological stations in northwest China. The related theory and methods in the paper present reliable trial approaches for analysing agricultural production conditions in arid regions, and the analysis and results of calculation provide scientific basis for agricultural production in certain regions.

本文从生态因子空间的分析入手,以近代生态学中的生态位理论为基础,提出了农业生态环境适宜度的概念;运用模糊数学方法建立了农业生态环境适宜度模型。最后,作为农业生态环境适宜度理论在干旱区的应用实例,拟定了甘肃中部干旱地区农业生态环境适宜度的隶属函数,并以西北干旱地区部分气象台站的统计资料为基础,计算了其农业生态气候資源指数、效能指数与利用系数。本文提出的有关理论和方法为干旱地区农业生产条件的分析提供了一种可供偿试的径途;其分析和计算结果为有关地区的农业生产提供了科学依据。

 
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