Resources Science ›› 2018, Vol. 40 ›› Issue (6): 1209-1221.doi: 10.18402/resci.2018.06.11

• Orginal Article • Previous Articles     Next Articles

Research on monitoring and early warning of land and water resources carrying capacity in the Tibet Autonomous Region

Jie GAO1,3(), Yujie LIU1,2(), Zhiming FENG1,4, Tao PAN1,2, Yanzhao YANG1,4, Hao ZHANG1   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    2. Key Laboratory of Land Surface Pattern and Simulation, Chinese Academy of Sciences, Beijing 100101, China
    3. College of Management, Gansu Agricultural University, Lanzhou 610070, China
    4. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-10-15 Revised:2018-04-04 Online:2018-06-25 Published:2018-06-22

Abstract:

Water and land resources are indispensable natural resources, whose carrying capacity for economic and social development is an important measure of the degree of coordination between society, land and regional sustainable development. Research on the surveillance and warning of water-land resources carrying capacity provides technical support for controlling regional resource environmental pressures. Under the case study of Tibet, taking into account resource, environmental and ecological attributes, we select key indicators to build a monitoring and early warning index system of regional water and land resources carrying capacity. The system includes water resources, water environment, productive land and ecological land. Based on international, national and industry standards, regulations and research, the key thresholds for different indicators are determined. We divided three warning levels into high to low as red, orange and yellow. From 2005 to 2014, using analytic hierarchy processes and expert scoring of the index system we found that indicators such as water quality compliance rate, per capita grain yield, per capita arable land area and grassland degradation degree significantly impact the regional water resource carrying capacity. Land resources need to be strengthened. The comprehensive carrying capacity of regional water and land resources has increased. The orange warning interval has down to the blue warning interval, meaning that regional water and land resources have improved.

Key words: water-land resources carrying capacity, the surveillance and warning, index system, Tibet Autonomous Region