| 北京市平原区地下水更新能力变化的动态均衡证据 |
| |
| 引用本文： | 翟远征,王金生,郇环,滕彦国.北京市平原区地下水更新能力变化的动态均衡证据[J].吉林大学学报(地球科学版),2012,42(1):198-205. |
| |
| 作者姓名： | 翟远征 王金生 郇环 滕彦国 |
| |
| 作者单位： | 北京师范大学水科学研究院,北京 100875;地下水污染控制与修复教育部工程研究中心,北京 100875;北京师范大学水科学研究院,北京 100875;地下水污染控制与修复教育部工程研究中心,北京 100875;北京师范大学水科学研究院,北京 100875;地下水污染控制与修复教育部工程研究中心,北京 100875;北京师范大学水科学研究院,北京 100875;地下水污染控制与修复教育部工程研究中心,北京 100875 |
| |
| 基金项目： | 北京市重大科技计划项目(D07050601510000) |
| |
| 摘 要： | 对北京市地下水更新能力的时空变化进行分析,为地下水资源管理提供依据。用地下水动态均衡法对北京市平原区地下水,尤其是开采层地下水的补给量、更新周期、更新速率和补给速率等参数做了计算,进而对地下水更新能力及其时空变化做评价和分析。研究结果表明:在自然状态下,地下水更新能力总体上自山前至平原区腹地由强变弱,但总体上更新能力较强;含水层接受外来水源补给的边界条件和赋水条件良好,降水量的多寡是影响地下水更新能力的瓶颈因素;2001—2008年的地下水平均补给速率(0.28m/a)比1981—2000年减少了35.6%,更新能力明显减弱;近些年地下水开采强度连年大于其更新能力,导致与自然状态下相比地下水位埋深平均下降幅度已达19.73m,含水层中地下水减少量达101×108 m3。以上证据表明,在气候变化和人类活动的双重影响下,北京市未来的地下水资源可持续供水问题十分严峻。
|
| 关 键 词： | 北京市 动态均衡 更新周期 补给速率 地下水 更新能力 |
Groundwater Dynamic Equilibrium Evidence for Changes of Renewability of Groundwater in Beijing Plain |
| |
| ZHAI Yuan-zheng
,
WANG Jin-sheng
,
HUAN Huan
,
TENG Yan-guo.Groundwater Dynamic Equilibrium Evidence for Changes of Renewability of Groundwater in Beijing Plain[J].Journal of Jilin Unviersity:Earth Science Edition,2012,42(1):198-205. |
| |
| Authors: | ZHAI Yuan-zheng WANG Jin-sheng HUAN Huan TENG Yan-guo |
| |
| Institution: | 1,2 1.College of Water Sciences,Beijing Normal University,Beijing 100875,China 2.Engineering Research Center for Groundwater Pollution Control and Remediation, Ministry of Education of China,Beijing 100875,China |
| |
| Abstract: | The aim of this paper is to analyze the spatial and temporal changes of renewability of groundwater in Beijing,which is great important for the sustainable utilization and management of groundwater resources.The recharge volume,renewing cycle,renewal rate,and recharge rate of groundwater in the Beijing Plain,especially in the mining aquifers,were calculated using groundwater table dynamic equilibrium method.The renewability of groundwater and changes of its spatio-temporal were further evaluated.The study results show that,under natural conditions,the renewability of groundwater is generally strong with a decreasing trend from the piedmont to the central plain.Secondly,the aquifers in this study have favorable boundary conditions for groundwater recharge from exterior and excellent water bearing conditions.The amount of precipitation is the bottleneck factor influencing the renewability of groundwater.Thirdly,the renewability of groundwater in investigated area and all the sub areas have decreased clearly with mean annual groundwater recharge rate during 2001-2008(0.28 m/a) decreasing by 35.6% compared with that in 1981-2000.Lastly,the mean groundwater level in 2008 is 19.73 m which is deeper than that in natural conditions(in and before 1960s).The total loss of groundwater volume has reached 101×108 m3 since 2008(accounting for 18% of the total volume of groundwater in the mining aquifers) because the groundwater exploitation intensity is always exceeding the renewability of groundwater recently.The above evidences show that the issue of groundwater sustainable supply is serious in Beijing under the impacts of climate change and human activities. |
| |
| Keywords: | Beijing dynamic equilibrium renewing cycle recharge rate groundwater renewability |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
