沈阳农业大学学报2016，Vol.47Issue(3)：327-333,7.DOI:10.3969/j.issn.1000-1700.2016.03.011
西辽河农灌区降雨及农业灌溉对地下水埋深的影响演变分析
Influence of Precipitation and Agricultural of Irrigation Agriculture on Groundwater Depth in Xiliaohe River
摘要
Abstract
Groundwater is the key factor that supports the social and economic development and ecological security of West Liaohe Plain area. In order to determine the change trend of groundwater depth in the region and the dominant factors, we analyzed the evolution trend of groundwater depth, determining the dominant factor affecting the relationship between water recharge and discharge in the area according to the principle of water balance. The groundwater recharge before 2000 was abundant, with irrigation water discharge less than recharge, thus groundwater balance was achieved and the groundwater depth was maintained. Average annual precipitation from 2000 to 2009 was only 75.9% in the 1990s, and the recharge of groundwater was significantly reduced, with discharge of groundwater that could be mined being decreased obviously under the condition of the balance of discharge and recharge. However, the irrigated area had developed to a higher level at that stage, and irrigation water had maintained at a higher level, thus the drainage of groundwater balance was broken. Therefore, groundwater recharge reduced to some extent that caused by the decrease of water resources system quality and global climate change, which combined with the large mining of groundwater for several years, leading to the increasing of groundwater depth. In order to solve the contradiction between supply and demand of regional water resources, we not only need to improve the level of water utilization, reduce water consumption, but also need to enhance the capacity of solving the problems as it comes up.关键词
地下水埋深/影响因素/灌溉农业发展/降雨Key words
groundwater depth/influence factor/development of irrigated agriculture/precipitation分类
天文与地球科学引用本文复制引用
付玉娟,张玉清,何俊仕,张朝龙..西辽河农灌区降雨及农业灌溉对地下水埋深的影响演变分析[J].沈阳农业大学学报,2016,47(3):327-333,7.基金项目
水利部公益性行业科研专项(1261530110115)；辽宁省教育厅项目(L2014268) （1261530110115）
