[1]WANG Quan,LI Yangbing,HUANG Juan,et al.Effect of Land Use Transformation Process on Ecosystem Service Value in Karst Trough Valley Area[J].Research of Soil and Water Conservation,2019,26(03):192-198.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 03
Page number:
192-198
Column:
Public date:
2019-04-12
- Title:
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Effect of Land Use Transformation Process on Ecosystem Service Value in Karst Trough Valley Area
- Author(s):
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WANG Quan, LI Yangbing, HUANG Juan, HU Xianpei, ZHONG Shengnan
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School of Geography and Environmental Science, Guizhou Normal University, Guiyang 550025, China
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- Keywords:
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land use transformation; ecosystem service value; GIS; karst trough valley; ecological environment
- CLC:
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F301.2
- DOI:
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- Abstract:
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It is greatly significance to identify the effect of land use transformation process on ecosystem service value in typical topography unit of karst valley area driven by various influence factors. The ecosystem service value (ESV) coefficient of the study area was revised by using the high-resolution images from 2005, 2010, 2014 and 2017 as the data source, combining with field survey to verify the image, and the latest research results of ecosystem services value at domestic and abroad, according to the actual situation of the study area. The ecosystem service values were calculated through the analysis of land use transfer matrix and ecosystem service value index. The results are as followings. (1) The changes of grassland, shrub woodland, hilly dry land, woodland, rural residential land and urban land were significant in the study area; hilly dry land was converted into grassland, town and residential land, grassland was converted into woodland and shrubbery land. (2) During the period from 2005 to 2010, land use transformation in the trough basin area presented more obvious than the hillside. In the period from 2010 to 2014, land use transformation mainly concentrated in the basin, the hilly dryland was converted into residential land and urban land, and the paddy fields were converted into residential land, the grassland was converted into hilly dry land. In the period from 2014 to 2017, land use transitions occurred simultaneously in the hillside-through basin. (3) The ecosystem services values in 2005, 2010, 2014 and 2017 were 2.293 813 million yuan, 2.179 908 million yuan, 1.857 092 1 million yuan and 1.844 274 1 million yuan, respectively. In 2005-2010, the ESV changed from 1.298 254 3 million yuan to 1.347 449 8 million yuan, increased by 1.85%. In 2010-2014, the ESV changed from 1.347 449 9 million yuan to 1.025 922 8 million yuan, dropped by 13.55%. In 2014-2017, the ESV changed from 1.025 922 8 million yuan to1.028 167 7 million yuan, dropped by 0.11%. During the 12 years from 2005 to 2017, the ecosystem service value (ESV) in karst trough valley area changed from 1.298 254 3 million yuan to1.028 167 7 million yuan, dropped by 11.61%.