查询词典 loess plateau

Based on GIS methods and Horton laws of a river system,this paper discusses the fractal properties of the Huluhe Drainage Basin,which is located on the Loess Plateau of Northwest China.

基于地理信息系统方法和Horton水系定律，对黄土高原地区葫芦河流域的水系分形特征进行了探讨。

Cave dwelling is a traditional house style, which is adapted to natural conditions in Loess Plateau of China.

窑洞是适应中国黄土高原地区自然条件而产生的一种传统民居建筑形式。

Studying the land use changes in the Loess Plateau can provide important information for decision-making of ecologic construction.

研究黄土高原的土地利用变化，可为其生态建设提供重要的决策依据。

Soil CaCO3 eluviation and deposition process is the most important development and evolution process of soil, from parent material to mature soil in the Loess Plateau, arid and semiarid area.

土壤碳酸钙(CaCO_3)的淋溶淀积过程是黄土高原以及干旱和半干旱地区土壤形成发育的主要过程之一，也是地球化学过程的主要内容。

Loess Plateau of China is one of the most serious soil erosion areas in the world.

黄土高原是世界上土壤侵蚀最强烈的地区之一。

The Necessity of water saving agriculture in the loess plateau of China is analysized,and main types of regulating soil water techniques are sumed up as follows:accumulating fertileness,crop rotation,intermittent fallowness of soil,drought resistant crop breeding, water saving ,run off agriculture and chemical methods.

分析黄土高原节水农业的必要性，总结出黄土高原农业调水技术主要有 7大类：培肥地力以肥调水，轮作倒茬调水，间隙休闲调水，抗旱育种调水，节水灌溉调水，径流农业调水，化学技术调水；指出在干旱、半干旱的黄土高原地区，利用农业调水技术是粮食增产增收的有效措施和必然趋

The effects of different sowing dates for two varieties of field pea have been examined through field site observations in an arid area of the Loess Plateau over two years. The experiment focused on two varieties of field pea, Green pea, which has high yield, and Yannong 2, which has low yield.

通过定位试验，探讨了黄土高原旱地不同播种期对豌豆产量的影响，供试材料为绿豌豆和燕农2号。

Phase 1 started with field pea followed by spring wheat whereas phase 2 started with spring wheat followed by field pea.The objectives of this thesis are:1 to quantitatively analyze effects of soil chemical,physical and biological properties on soil quality and productivity under different tillage systems and the driving factors for the changes of soil quality under tillage in a long-term,2 to select the best soil quality assessment indicators,and 3 to establish soil quality assessment models that are suitable for the erodible environment of semi-arid region on the Loess Plateau.

通过分析3个轮作周期不同耕作方式下土壤理化性质、生物性质和生产力对土壤质量的影响，阐明长期耕作过程中土壤质量的演变特征及其驱动因子，筛选出适宜于黄土高原半干旱区侵蚀环境下土壤质量评价的代表性指标；并综合前人的研究，结合区域特点，建立适宜于黄土高原半干旱区侵蚀环境的土壤质量评价模型。

Depending on the Qingyang Loess Plateau Test Station, according to the theory of ecological economy,using modern biological and ecological engineering technique, the complex system composed by fruiter and foragegrass, grain crops, economic crops were approached.

以庆阳黄土高原试验站为依托，根据生态经济学原理，运用现代生物和生态工程技术，探讨了果树与牧草、粮食作物、经济作物等构成的复合系统。

Longde County is located in the western Loess Plateau, Department of Qilian geosyncline and the transition zone of North China platform.

隆德县地处黄土高原西部，系祁连山地槽与华北地台的过渡带。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。