CWE / 842/2017 当前世界环境 0973 - 4929 2320 - 8031 环境研究出版社 CWE——33-00 气候变化对印度古吉拉特邦Shetrunji盆地地下水资源的影响 2015-12-31 10.12944 / CWE.10.3.31 10卷 10卷 994 - 1003 摘要

气候变化对地下水补给影响的估算有助于制定未来流域地下水开发和管理规划。这对农业和其他资源规划也有帮助。还可以判断种植模式所需的移位。研究对象是面积为5646.98 km的舍特伦吉河流域。整个地区由17个流域组成。通过3种不同的方法评估了气候变化对降雨、径流和地下水补给的影响。水量平衡、Krishna Rao(1970)和地下水位变化对地下水补给的影响分别为3.11% ~ 49.28%、0% ~ 15.34%和0.72% ~ 14.62%。气候变化影响使流域17个流域中6个流域的降雨量显著增加,5个流域的径流量显著增加。流域上游北部和中游最南端的降水和径流受气候变化的影响。舍特伦吉河流域的面积加权降雨量呈显著增加趋势。 The areal mean depth of monsoon runoff for entire Shetrunji basin was increasing significantly at the rate of 17.7 mm per decade. The groundwater recharge assessed by water balance method was found higher as compared to Krishna Rao (1970) and water level fluctuation method. The groundwater recharge expected by water balance, Krishna Rao (1970) and water level fluctuation methods is found to be enlarged in 13, 9 and 6 watersheds out of 17 watershed of the basin. The areal mean depth of groundwater recharge in Shetrunji basin during monsoon season in water level fluctuation method was found increasing significantly at the rate of 13.01 mm per decade due to climate change impacts.

关键字 盆地 分水岭 降雨 径流 地下水补给 气候变化影响