| 西北内陆张掖盆地地下水温度变化特征及其指示意义 |
| |
| 关键词:Zhangye basin groundwater temperature influencing factors indicative significance |
| 基金项目:国家科技支撑计划项目(编号: 2007BAD69B02; 2009BADA3B05); 国家自然基金项目(编号: 40602032); 河北省科技厅重点基础研究项目(编号: 08966711D) |
|
| 摘要点击次数: 3883 |
| 全文下载次数: 4730 |
| 摘要: |
| Groundwater Temperature Variation in the Zhangye Inland Basin of Northwest China and Its Indications |
| A study of groundwater temperature variation in Zhangye inland basin shows that the shallow groundwater and the confined groundwater decreased by 0.78℃ and 1.17℃ respectively in the study area from 1990 to 2009. This phenomenon was related to the increasing of melt water and precipitation caused by the air temperature rising in mountain areas. Meanwhile, the increase of groundwater exploitation led to the nearly same development trends of the temperature of the shallow groundwater and that of the confined groundwater in the study area. The groundwater temperature of the basin plain was in inverse proportion to the air temperature and precipitation in the mountain area. It means that, when the mountain temperature and precipitation increase the basin groundwater temperature decreases, and when the mountain temperature and precipitation decrease the basin groundwater temperature increases. 70%-90% of the basin plain groundwater recharge which is at low temperature comes from the upstream of Qilian Mountains, and therefore the variation degree of basin plain groundwater temperature indicates the quantity of the effective recharge that the groundwater obtains, and has indicative significance to certain extent. |
| LIAN Ying-li,ZHANG Guang-hui,NIE Zhen-long,AI Ting.2011.Groundwater Temperature Variation in the Zhangye Inland Basin of Northwest China and Its Indications[J].Acta Geoscientica Sinica,32(2):195-203. |
| 查看全文 查看/发表评论 下载PDF阅读器 |