[1]YUAN Jia,SHEN Fei,WANG Tiantian,et al.Impact of Land Use/Cover Change on Regional Net Primary Productivity in Wanjiang City Belt During the Period from 2000 to 2010[J].Research of Soil and Water Conservation,2016,23(05):245-250.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 05
Page number:
245-250
Column:
Public date:
2016-10-28
- Title:
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Impact of Land Use/Cover Change on Regional Net Primary Productivity in Wanjiang City Belt During the Period from 2000 to 2010
- Author(s):
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YUAN Jia1,2, SHEN Fei1,2, WANG Tiantian1,2, LUO Xiaorui1,2
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1. College of Territorial Resources and Tourism, Anhui Normal University, Wuhu, Anhui 241003, China;
2. Anhui Key Laboratory of Natural Disaster Process and Prevention, Wuhu, Anhui 241003, China
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- Keywords:
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land use/cover change; net primary productivity; CASA model; Wanjiang City belt
- CLC:
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F301.2;TP79;Q948
- DOI:
-
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- Abstract:
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Based on three periods of Landsat TM/ETM remote sensing image interpretation data in 2000, 2005 and 2010, the temporal and spatial variation of land use of Wanjiang City belt in recent 11 years were quantitatively analyzed. In addition, using the MODIS/NDVI data and meteorological data, the NPP of the study area were estimated by using the improved CASA model, then the effect of the land class conversion on NPP were analyzed and evaluated in the research area. The results show that the land use pattern of the study area changed significantly from 2000 to 2010, it shows that the areas of farmland, grassland and unused land reduced, construction land and water area increased, forestland area increased after reduction; the main characteristic of land use type conversion was significantly reduce of the farmland and rapidly increase of construction land; in the past 11 years, the NPP of the study area showed an increasing trend, the spatial distribution pattern of high level in north and low level in south; the mean NPP of each land use type was increased, and forestland increased most rapidly; the vegetation NPP in the north of the Yangtze River region showed a trend of gradual increase, while along and south of the Yangtze River regions share the different changing trend; NPP loss resulting from the conversion of farmland to construction land was the largest.