首页|Shifting agricultural land use and its unintended water consumption in the North China Plain

Shifting agricultural land use and its unintended water consumption in the North China Plain

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Shifting agricultural land use and its unintended water consumption in the North China Plain
Agricultural land use(ALU)critically influences food production and water resource allocation.This study examines the dynamics of ALU in the North China Plain(NCP),a region characterized by intensive agri-culture and severe groundwater over-exploitation,focusing on the multidimensional drivers and their implications for water resource management.By employing an elaborate classification scheme based on satellite imagery and extensive first-hand field data,we identified significant shifts in crop patterns.From 2013 to 2017,there was a notable transition from double crops(primarily wheat-maize)to single crops(primarily maize),covering 4600 km2 and accounting for 42％of single crops in 2013.From 2017 to 2022,there was a shift from single crops to economic forests,encompassing 3600 km2 and 22％of eco-nomic forests in 2017,including orchards,timber trees,and shelter forest belts.These shifts resulted in an 11％decrease in grain acreage(6800 km2)but an 11％increase in crop water consumption(6.3 km3)during 2013-2022.Notably,water consumption by economic forests increased by 126％(9.4 km3)during this period.This study highlights the critical need to balance competing demands for food and water security,providing valuable insights applicable to other agriculturally intensive regions worldwide.

Agricultural land useRemote sensing imageryRandom forest classificationShifts in crop patternsWater consumption

Liang Dong、Di Long、Caijin Zhang、Yingjie Cui、Yanhong Cui、Yiming Wang、Luoqi Li、Zhongkun Hong、Ling Yao、Jinling Quan、Liangliang Bai、Hao Wang、Bridget R.Scanlon

展开 >

Department of Hydraulic Engineering,Tsinghua University,Beijing 100084,China

Key Laboratory of Hydrosphere Sciences of the Ministry of Water Resources,Beijing 100084,China

State Key Laboratory of Resources and Environmental Information System,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China

Science and Technology Advisory Center,Haihe River Water Resources Commission,Ministry of Water Resources,Tianjin 300170,China

State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,China Institute of Water Resources and Hydropower Research,Beijing 100038,China

Bureau of Economic Geology,Jackson School of Geosciences,University of Texas at Austin,Austin TX,78712,USA

展开 >

Agricultural land use Remote sensing imagery Random forest classification Shifts in crop patterns Water consumption

2024

10.1016/j.scib.2024.11.009

科学通报(英文版)
中国科学院

科学通报(英文版)

CSTPCD
ISSN：1001-6538
年,卷(期)：2024.69(24)