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中文摘要：
降水在灌溉及旱地农业中起到重要的水分补给作用，从调理作物生理状况、改善土壤环境、主动调控天然降水及改变耕作模式4个方面，阐述了降水高效利用的研究现状及研究趋势。通过归纳，研究方法主要从降水在田间的具体转化环节入手，提高降水利用效率的途径，并在现有的降水高效利用技术措施的基础上，结合现代生物、水利、农艺、新材料、信息、化工等多学科内容，对土壤环境及耕作措施进行改良，探索更加有利于西北干旱地区降水高效利用的方法措施。
英文摘要：
Precipitation plays an important water supply role in irrigation and dry land agriculture. This paper expounds the present research situation and research trend of efficient utilization of rainfall from four aspects, such as regulating crop physiology, impro- ving the soil environment, the initiative control of natural rainfall and changing the farming form. It is concluded that the methods of improving the utihzation efficiency of precipitation should he studied starting from the transformation of specific links of precipitation in the field. And the existing technical measures of precipitation utilization should be combined with modern biological, water conser- vancy, agriculture, new materials, information, chemical industry and other multi-disciplinary content to improve the soil environ- ment and cultivation measures, to explore more conducive methods for efficient utilization of precipitation in northwest arid region.
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