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[1]ZHAO Liang,LIU Yu,LUO Yong,et al.Temporal and Spatial Evolution of Human Impact Intensity on the Loess Plateau in Recent 40 Years[J].Research of Soil and Water Conservation,2019,26(04):306-313.

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Temporal and Spatial Evolution of Human Impact Intensity on the Loess Plateau in Recent 40 Years

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 04 Page number: 306-313 Column: Public date: 2019-06-11

Title:: Temporal and Spatial Evolution of Human Impact Intensity on the Loess Plateau in Recent 40 Years

Author(s):: ZHAO Liang^1,2, LIU Yu², LUO Yong¹, LIU Hanhu¹; 1. College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China;
2. Key Laboratory of Ecosystem Observation and Modelling, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China

Keywords:: the Loess Plateau; intensity of human activities; land use/cover change; temporal and spatial evolution

CLC:: TP79;Q948.15;F301.2

DOI:: -

Abstract:: To explore the temporal and spatial evolution of human impact intensity and its driving factors, the land use/cover conversion construction land equivalent method is used to quantify and spatialize the intensity of human impact. We map the spatial and temporal evolution of human impact intensity on the Loess Plateau. Land use/cover data of four stages during 1975—2015 are used to construct the index of human impact intensity. By coupling information on landform pattern and policy incentives, driving factors for the variation of human activities are discussed. The results showed that, during the 40 years studied, change of the intensity of human activities in the Loess Plateau had two stages, there was a stable period before 2000, a rapid decrease stage occurred after 2000; during this period, the intensity and its spatial pattern of human activities in the Loess Plateau had changed significantly; the intensity of human activities changed from a pattern featured by moderate intensity that widely covered hills, table-lands and plains to a mosaic pattern of a widely cover of low intensity areas and patches of high human impact intensity in plains and river valleys; Liupanshan Mountain—northern Shaanxi Province on the Loess Plateau had a large area of human activity cold spots, and the Guanzhong Plain—Luoyang Basin formed a large-scale hotspot agglomeration area. Generally, spatial pattern of human activities in the Loess Plateau is on the trend to fit the topographic pattern. The temporal and spatial variations of human activities in the Loess Plateau are the results of the coupling of human policy incentives, economic development, and ecological carrying capacity promoted from topographic and physiographic conditions.

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