Resources Science ›› 2017, Vol. 39 ›› Issue (6): 1099-1116.doi: 10.18402/resci.2017.06.10

• Orginal Article • Previous Articles     Next Articles

Land use change and impact on groundwater storage in the Huang-Huai-Hai Plain

Ming LEI1,2(), Xiangbin KONG1,2(), Xueliang ZHANG1,2, Fangfang WU1,2   

  1. 1.College of Resources and Environment,China Agricultural University,Beijing 100193,China
    2. Key Laboratory for Farmland Quality and Monitoring of National Ministry of Land Resources,Beijing 100193,China
  • Received:2016-06-05 Revised:2017-03-16 Online:2017-06-20 Published:2017-06-20

Abstract:

Impacts of land use on hydrologic processes and environmental problems caused by land use are hot research topics in global. Facing water shortages in the Huang-Huai-Hai Plain,a method of grid water balance principle is presented here based on a 1km grid geographic information database. The grid water balance model was applied to simulate groundwater storage of 310 863 grids in 1990 and 2010. The result of grid water balance effectively simulated the groundwater storage of Huang-Huai-Hai Plain in 1990 and 2010. The reduction of groundwater storage from 1990 to 2010 has a close link with land use change and the water consumption intensity of land. The trend of land use change is that construction land occupies cultivated land and cultivated land occupies ecological land in the Huang-Huai-Hai Plain from 1990 and 2010. The rank for water consumption strength of land use grid is:Construction land > Cultivated land > Grassland and Unused land. Low water consumption strength land type turns to high water consumption rate land type in the Huang-Huai-Hai Plain,which means less groundwater storage in 20 years. Grid construction land water consumption increased by 1.07 million m3/km2 in 2010 from 1.66 million m3/km2 in 1990,grid cultivated land water consumption changed from 519 thousand m3/km2 in 1990 to 575 thousand m3/km2 in 2010. The water consumption rate of construction land and cultivated land increased consecutively. The rule of land use change is important for Huang-Huai-Hai Plain ground water decline.

Key words: groundwater storage, water balance, land use change, Huang-Huai-Hai Plain