人工补水条件下白洋淀湿地演变研究 |
|
关键词:Baiyangdian Wetlands comprehensive extraction area variation surface water level groundwater level |
基金项目:中国地质调查局项目(编号: DD20189142; DD20160239) |
|
摘要点击次数: 3522 |
全文下载次数: 3649 |
摘要: |
An Analysis of the Evolution of Baiyangdian Wetlands in Hebei Province with Artificial Recharge |
In recent decades, Baiyangdian Wetlands and its surrounding environments have changed a lot due to the impacts of natural factors and human activities. In this paper, the comprehensive identification method based on remote sensing technique was adopted to extract the area information of Baiyangdian Wetlands. And the area variation characteristics of Baiyangdian Wetlands were analyzed. The area was increased by 253.29 km2 from 1986 to 1989, reduced by 181.61 km2 from 1989 to 1994, increased by 158.17 km2 from 1994 to 1997, reduced by 170.37 km2 from 1997 to 2004, and increased by 106.09 km2 from 2004 to 2016. According to the extracted results of area, the relationship between wetlands area and surface water level and groundwater level is analyzed. The major controlling factor of Baiyangdian Wetlands area as well as the surface water level was determined by establishing the good relation between area and surface water levels. The correlation coefficient of these two items is 0.99. There is a positive correlation between Baiyangdian Wetlands area and the dynamic change of groundwater level in the surrounding areas, which indicates that the leakage of wetlands has a certain influence on the dynamic change of the groundwater level in the surrounding areas. In order to study the influencing factors of surface water level in Baiyangdian Wetlands, the authors used the water balance method. The main factors which can influence the surface water level a lot are inflows to the wetlands and the evapotranspiration consumption. Through the analysis of the area evolution of Baiyangdian Wetlands and its influencing factors, the impact mechanism between the evolution of Baiyangdian Wetlands and the hydrological process is preliminarily revealed, which can provide technical support and theoretical reference for formulating strategies of ecological restoration and sustainable utilization of water resources in Baiyangdian Wetlands. |
WANG Kai-lin,LI Hai-tao,WU Ai-min,LI Mu-zi,ZHOU Yi,LI Wen-peng.2018.An Analysis of the Evolution of Baiyangdian Wetlands in Hebei Province with Artificial Recharge[J].Acta Geoscientica Sinica,39(5):549-558. |
查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
|
|