人民黄河Issue(2)：71-74,4.DOI:10.3969/j.issn.1000-1379.2014.02.023
地下水埋深变动对农业生产影响的实证研究
Empirical Study on the Impact of Groundwater Depth Change on Agricultural Production
摘要
Abstract
Based on 2 years’field panel data collected in 10 provinces,this paper empirically analyzed the changing trend of groundwater depth and its impact on agricultural production. The results show that the groundwater depth tended to decline and the trend has become more serious. With the decline of groundwater depth,crop yields have not been negatively affected. It implies that the increase of agricultural production is at the cost of over-exploitation of groundwater. With decline of groundwater depth and the decrease of available water resources,farmers make response by adjusting cropping patterns,such as increasing crop sown areas of irrigation sensitive crops (such as paddy and wheat)and reducing crop sown are-as for those crops (such as maize)which have relatively low dependence on irrigation.关键词
地下水埋深/作物单产/作物种植结构Key words
groundwater depth/crop yield/cropping pattern分类
天文与地球科学引用本文复制引用
王金霞,李玉敏..地下水埋深变动对农业生产影响的实证研究[J].人民黄河,2014,(2):71-74,4.基金项目
国家重点基础研究计划项目（2012CB955700，2010CB428406）；国家自然科学基金资助项目（70925001，71161140351）；中国科学院地理科学与资源研究所资助项目（2012ZD2008）。 （）
