| 豫西地区降水资源对旱地粮食作物产量的影响与对策 |
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| 引用本文： | 李克煌,钟兆站.豫西地区降水资源对旱地粮食作物产量的影响与对策[J].自然资源学报,1997,12(1):23-28. |
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| 作者姓名： | 李克煌 钟兆站 |
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| 作者单位： | 1. 河南大学地理系, 开封 475001;
2. 中国农业科学院农业气象研究所, 北京 100081 |
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| 摘 要： | 本文论述降水资源是旱地粮食作物产量的重要影响因素,揭示了豫西地区主要粮食作物的需水规律和水分盈亏规律,提出运用地理风险决策、实行适水种植的宏观对策。
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| 关 键 词： | 旱地粮食生产 水分盈亏量 地理风险决策 豫西地区 |
| 收稿时间： | 1996-03-01 |
THE INFLUENCES OF PRECIPITATION RESOURCE ON GRAIN CROP YIELD IN DRY AREAS OF WESTERN HENAN PROVINCE AND THE COUNTERMEASURES |
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| Li Kehuang,Zhong Zhaozhan.THE INFLUENCES OF PRECIPITATION RESOURCE ON GRAIN CROP YIELD IN DRY AREAS OF WESTERN HENAN PROVINCE AND THE COUNTERMEASURES[J].Journal of Natural Resources,1997,12(1):23-28. |
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| Authors: | Li Kehuang Zhong Zhaozhan |
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| Institution: | 1. Department of Geography, Henan University, Kaifeng 475001;
2. Agrometeorological Institute, Chinese Academy of Agricultural Science, Beijing 100081 |
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| Abstract: | This paper quantitatively expounds that the precipitation resource is one of the important factors that affect the fluctuation of the grain crop production in the dry areas of Western Henan Province. On the basis of the calculation results of crop water surplus and shortage during various growing periods and the critical period of water requirement in normal precipitation years, high precipitation years and low precipitation years of 19 counties or municipalities in Western Henan Province, the basic law of the influences of precipitation resource on grain crop production in dry areas is revealed. According to the randomness of water variation and the option of cropping system in dry areas, the macro countermeasures that use the geographic risk policy making and practise the water adaptability planting are expounded in this paper. |
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| Keywords: | Grain production in dry area water surplus and shortage geographic risk policy making Western Henan Province |
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