| 全新世以来华北平原层圈间水循环演化过程与区域地下水演变周期性 |
| |
| 关键词:Holocene North China Plain hydrologic cycle groundwater evolution periodicity |
| 基金项目:国土资源部重点基础项目(200010301)，国家科技部项目(2000-163)，国土资源部百名科技人才项目(98005)，国家自然科学基金
项目(49877079) |
|
| 摘要点击次数: 3036 |
| 全文下载次数: 2445 |
| 摘要: |
| Evolutionary Process of Hydrologic Cycle and Periodicity of Groundwater Change in North China Plain since Holocene |
| The recharge of the regional groundwater is related to the evolutionary course of the regional hydrologic cycle in North China Plain, which reveals clearly the periodicity and the variability since Holocene. The relationship between regional groundwater ( Dr ) and the natural surface runoff ( R ) ( Dr/R equals 0.32) is most close, the relationship between the evolution of regional groundwater and the land evaporation ( E ) ( Dr/E equals 0.26) possesses the second place, the relationship between the evolution of regional groundwater and the precipitation ( P ) ( Dr/P equals 0.24) is closer as well. The precipitation is the key factor, which causes the evolution of regional groundwater in North China Plain. The coefficients of the relationship among regional groundwater evolution, precipitation surface runoff and land evaporation change continuously with the evolution of regional hydrologic cycle in periodicity. The periodicity of the regional groundwater in Holocene includes 12?200～12375 years, 8?133～8?250 years, 3?062～4?125 years, 1?633～1?650 years, 1?029～1?031 years, 750～851 years, 358～284 years, 140～200 years, 60～80 years, 26～40 years, 10～22 years, 5～8 years and 2.5～3.6 years. On the basis of the evolutionary periodicity of the regional hydrologic cycle, it is forecasted that the recharge of the regional groundwater will tend to decrease from 2?000 to 2?010 AD, to increase from 2010 to 2020 AD, to increase remarkably from 2?020 to 2?030 AD which is the main recharge period of the regional groundwater in the forthcoming 50 years, and to decrease remarkably from 2?030 to 2?050 AD which is in short of groundwater reserves. |
| ZHANG Guang-hui,NIE Zhen-long,CHEN Zong-yu,LAI Qin-bo,WANG Jin-zhe.2001.Evolutionary Process of Hydrologic Cycle and Periodicity of Groundwater Change in North China Plain since Holocene[J].Acta Geoscientica Sinica,22(4):293-297. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
|
|