Response analysis of land use change to the degree of human activities in Beiluo River basin since 1976
WU Linna1,2, YANG Shengtian1, LIU Xiaoyan3, LUO Ya1,4, ZHOU Xu5, ZHAO Haigen1
1. State Key Laboratory of Remote Sensing Science, School of Geography, Beijing Normal University, Beijing Key Laboratory for Remote Sensing of Environment and Digital Cities, Beijing 100875, China; 2. College of Resource and Environment Engineering, Guizhou University, Guiyang 550025, China; 3. Yellow River Conservancy Commission, Zhengzhou 450003, China; 4. School of Geographic and Environmental Sciences, Guizhou Normal University, Guiyang 550001, China; 5. School of Land and Resource, China West Normal University, Nanchong 637009, Sichuan, China
Abstract：Land use change as an important factor reflects the degree of human activities. Analysis of spatial-temporal change of land use is an effective way to reveal the degree of land use change. Based on the remote sensing and GIS, the authors used man computer interactive image processing methods to acquire the land use data in 1976, 1998 and 2010, and analyzed the spatial-temporal variation of land use in Beiluo River basin from the rate of land use change, the direction of land use transformation, and the degree of land use. The results can be obtained as follows. (1) The integrated dynamic degree of land use increased from 0.61 during 1976-1998 to 6.66 during 1998-2010, the area of arable land and grassland decreased gradually, the rate was increased from 2.00% and 2.69% to 26.20% and 23.33% respectively, while the area of forest land and residential land increased gradually, the rate of the former increased from 5.93% during 1976-1998 to 59.68% during 1998-2010, and that of the latter decreased from 6.59% during 1976-1998 to 3.52% during 1998-2010. (2) The direction of land use change showed similar characteristics during the two periods. Forest land was converted from arable land and grassland, and a small part of residential land was converted from arable land. (3) The integrated degree of land use change ranged from -2-1 during 1976-1998 to -27-4 during 1998-2010. The authors proved that the impact of human activities on the natural environmental showed increasing trends, that arable land, grassland, forestland and residential land were mainly converted, that affected areas were mainly distributed in the upper basin, i.e., Wuqi county, Fuxian county, Ganquan county, Huangling county and Luochuan county, while the increasing area of forest land was much larger than the decreasing area of both arable land and grassland area, and the increasing area of residential land.
吴琳娜, 杨胜天, 刘晓燕, 罗娅, 周旭, 赵海根. 1976年以来北洛河流域土地利用变化对人类活动程度的响应[J]. 地理学报, 2014, 69(1): 54-63.
WU Linna, YANG Shengtian, LIU Xiaoyan, LUO Ya, ZHOU Xu, ZHAO Haigen. Response analysis of land use change to the degree of human activities in Beiluo River basin since 1976. Acta Geographica Sinica, 2014, 69(1): 54-63.
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2014, Vol. 69 
