XU Xue xuan,GAO Peng,JIANG Dingsheng.Fuzzy Analysis on the Suitability of Precipitation to the Agro-Crops Growing in Yan’an City[J].Research of Soil and Water Conservation,2000,7(02):73-76,118.
延安降水对农作物生长适宜性的模糊分析
- Title:
- Fuzzy Analysis on the Suitability of Precipitation to the Agro-Crops Growing in Yan’an City
- Keywords:
- Yan’an city; precipitation; agro-crops; suitability; fuzzy analysis
- 分类号:
- S162.5
- 摘要:
- 采用21年逐日降水、月径流及作物生育期需水量资料，运用模糊数学分析了降水对小麦、玉米、谷子、马铃薯等四种作物生长的降雨量、时期、有效程度三种适宜度，并对三种适宜度累积加权平均得到雨量、雨时、雨效的三个适宜态，进而得出降雨效能指数，用来整体评价降水的作物适宜性。其评价结果表明延安地区降雨对玉米、谷子种植效能指数最高，其次为马铃着。而小麦种植由于生育期降雨量偏少，其降雨效能指数很低，只有在有补充灌溉的情况下，减轻降雨量偏少的干旱影响，才是发展小麦种植的有效途径。研究结论对同类地区农业生产有理论上指导意义。
- Abstract:
- Based on the fuzzy theory, authors had studied two types of the three indexes which are suitability’s in quantity, temporal and effective degree, the results show that corn, potato and millet are more suitable to grow than of wheat in the areas.This study is useful for adjusting the agro-crops plantation in the Loess Plateau region.
参考文献/References:
[1] 蒋定生, 等.绥、米地区降水资源评价[J].水土保持通报, 1984, (1)
[2] 蒋定生, 黄国俊, 帅启富, 等.渭北旱塬降水对农作物生长适宜度的模糊分析[J].中科院水利部西北水土保持研究集刊, 1992, 第16集
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备注/Memo
收稿日期:2000-4-3。
基金项目:国家“九五”科技攻关专题（96-004-05-13）