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Journal of Desert Research ›› 2022, Vol. 42 ›› Issue (3): 170-177.DOI: 10.7522/j.issn.1000-694X.2021.00115

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Research advances on the impact of climate change and LUCC for water resources in the northern agro-pastoral zone in China

Xueping Chen1,2, Xueyong Zhao1(), Ruixiong Wang1,2, Zhiying Ning1,2, Jiannan Lu1,2, Siteng Zhao1,2   

  1. 1.Naiman Desertification Research Station,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    2.University of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2021-07-27 Revised:2021-09-03 Online:2022-05-20 Published:2022-06-01
  • Contact: Xueyong Zhao

Abstract:

The northern agro-pastoral interlaced zone is one of the most sensitive areas to cliamte change and human activity. The study of water resource change therefore in the interlaced zone under the background of climate change and land use/cover change(LUCC) provides an important scientific and practical significance for scientifically responding to the effective use and management of water resource in ecologically fragile aeras in a changing environment.Through the research on the characteristics of the climate and LUCC evolution in the northern agro-pastoral interlaced zone and their impact on water resources. The conclusions are as follows: (1) in the past 70 years, the climate in the northern agriculture-pastoral zone has shown a warming and drying trend, and the rate of temperature increase and precipitation decrease are higher than that of the global average. (2) LUCC is mainly based on the mutual transformation of agriculture and animal husbandry, and the land use structure has not changed significantly. (3) The watershed runoff and groundwater level in the region are positively correlated with temperature, negatively correlated with precipitation, and the effect of precipitation is more obvious; in recent decades, LUCC has become the dominant factor affecting the ecological and hydrological processes in the region, and the contribution rate of the impact on water resources has increased. Considering the problems and weakness in studies,we proposed the development trends of future research and key problems to be solved in the study.

Key words: agro-pastoral interlaced zone in northern China, climate change, land use/cover change (LUCC), water resource

CLC Number: