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首页> 外文会议>Groundwater-Present Status and Future Task >SPATIAL ANALYSIS OF THE RELATION BETWEENDEEP GROUNDWATER EXPLOITATION ANDLAND SUBSIDENCE IN BEIJING-TIANJINHEBEI-DEZHOU PLAIN AREA
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SPATIAL ANALYSIS OF THE RELATION BETWEENDEEP GROUNDWATER EXPLOITATION ANDLAND SUBSIDENCE IN BEIJING-TIANJINHEBEI-DEZHOU PLAIN AREA

机译：北京-天津金北-德州平原地区BETWENDEEEP地下水开发与地面沉降关系的空间分析

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摘要

The area of Beijing-Tianjin-Hebei-Dezhou is China's important concentrated cities region and agricultural productionrnbase, where has produced serious land subsidence because of deep groundwater over-exploitation. Some scholars believe thatrnaccumulative total deep groundwater yield is basically equivalent to the accumulative total volume of land subsidence, that deeprngroundwater of Beijing-Tianjin-Hebei-Dezhou area belongs to storage resources which basically cannot gain recharge and refresh.rnThe article analyses spatially the relation between accumulative total volume distribution of land subsidence and deep groundwaterrnlevel variation distribution using GIS spatial analysis method to the Beijing-Tianjin-Hebei-Dezhou area of approximately 80,000rnsquare kilometers where exploit and use deep groundwater, primarily discusses quantitative characteristics of macro relationshiprnbetween deep groundwater exploitation and utilization and land subsidence by combination of the study to deep groundwaterrnexploitation. The conclusion is that the long-term average deep water yield is 25×108-27×108m3/a, the long-term average landrnsubsidence volume is 11.2×108m3/a, the annually average land subsidence volume is approximately equal to 41%-44% annuallyrnaverage deep water exploitation, also approximately 56%-59% deep groundwater exploitation not to cause the direct land subsidencernresponse. This explains that the dynamical space of deep groundwater under the high strength exploitation drive condition possibly hasrnalready changed hugely. The mechanism of deep groundwater induced to land subsidence, the composition and the circulationrnrenewed mechanism of deep groundwater should further study.
机译：京津冀德地区是中国重要的集中城市地区和农业生产基地，由于深层地下水过度开采，土地沉降严重。有学者认为，深部地下水的累积总产量基本上等于地面沉降的总体积，认为京津冀德州地区的深部地下水属于基本上不能补给和更新的储水资源。利用GIS空间分析方法，对北京-天津-河北-德州地区开采和利用深层地下水的面积约80,000平方公里的地面沉降和深层地下水水位变化的累积总量分布，主要探讨了深层地下水开采与开采之间宏观关系的定量特征。综合利用对深层地下水开采的利用和土地沉降。结论是，长期平均深水产量为25×108-27×108m3 / a，长期平均地面沉降量为11.2×108m3 / a，年平均地面沉降量约为41％-每年平均有44％的深水开采，也有约56％-59％的深层地下水开采不会引起直接的地面沉降响应。这说明在高强度开采驱动条件下深层地下水的动力空间可能已经发生了巨大变化。深层地下水引起地面沉降的机理，深层地下水的组成和循环更新机理还有待进一步研究。

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