中文摘要：

土地利用变化对水文过程的影响以及衍生的资源与环境问题已经成为当前研究的热点问题，针对黄淮海平原区水资源短缺问题，研究区域的土地利用变化对地下水资源量的效应，对于地下水位下降原因的诊断，调整土地利用以缓解地下水危机具有现实意义。本文构建了1km网格地理信息数据库，利用基于水量平衡原理的单元网格水平衡分析方法，计算出了1990年、2010年两期黄淮海平原区310863个网格地下水蓄变量。研究发现，黄淮海平原区的土地结构变化趋势是生态用地转换为耕地，耕地转换为建设用地，而其中各地类的耗水强度排序为建设用地〉耕地〉草地以及未利用土地，建设用地耗水强度从107m^3／km^2增加到2010年的166万m^3／km^2，耕地耗水强度从51．90万m^3／km^2增加到57．50万m^3／km^2，草地与未利用地耗水强度分别从43．91万m^3／km^2、46．78万m^3／km^2变化到50．93万m^3／km^2、49．39m^3／km^2。低耗水强度的用地结构向高耗水强度用地结构变化，以及建设用地和耕地耗水强度不断增加，导致了黄淮海平原区各流域地下水蓄变量减少。

英文摘要：

Impacts of land use on hydrologic processes and environmental problems caused by land use are hot research topics in global. Facing water shortages in the Huang-Huai-Hai Plain, a method of grid water balance principle is presented here based on a lkm grid geographic information database. The grid water balance model was applied to simulate groundwater storage of 310 863 grids in 1990 and 2010. The result of grid water balance effectively simulated the groundwater storage of Huang-Huai-Hai Plain in 1990 and 2010. The reduction of groundwater storage from 1990 to 2010 has a close link with land use change and the water consumption intensity of land. The trend of land use change is that construction land occupies cultivated land and cultivated land occupies ecological land in the Huang-Huai-Hai Plain from 1990 and 2010. The rank for water consumption strength of land use grid is： Construction land 〉 Cultivated land 〉 Grassland and Unused land. Low water consumption strength land type turns to high water consumption rate land type in the Huang-Huai-Hai Plain, which means less groundwater storage in 20 years. Grid construction land water consumption increased by 1.07 million m3/km2 in 2010 from 1.66 million m3/km2 in 1990, grid cultivated land water consumption changed from 519 thousand m^3/km^2 in 1990 to 575 thousand m3/km2 in 2010. The water consumption rate of construction land and cultivated land increased consecutively. The rule of land use change is important for Huang- Huai-Hai Plain ground water decline.