Assessment of Ecosystem Service Value of Land Use Change in the Jialingjiang Watershed

doi:10.14088/j.cnki.issn0439-8114.2019.02.008

Abstract

Abstract: ： According to the TM images of Jialing River watershed in the years 2000,2005 and 2015,by using Geo-mathematical method and GIS method, the author analyzed the changes of land use area and the dynamic indexes of land use,and estimated the ecosystem service value of land use change in Jialing River watershed in 15 years. The results showed that from 2000 to 2015,the areas of cultivated land decreased continuously,and the areas of construction,grassland,water,forestland and unused land of Jialing River watershed increased. The ecosystem service value of Jialing River watershed decreased from 243 109.36 million yuan in 2000 to 242 805.95 million yuan in 2015. The sensitivity analysis showed that the ecosystem service value in study area was inelastic,the cultivated land area change reflected by the value change between land use and the ecosystem service value had a great influence.

Key words: land use, ecosystem service value, Jialing River watershed, assessment

CLC Number:

F301

LI Jia-lin, LIAO Jia-hong, WANG Xu-xi, LIU Shou-jiang, YANG Dan, YAN Ji-yao. Assessment of Ecosystem Service Value of Land Use Change in the Jialingjiang Watershed[J]. HUBEI AGRICULTURAL SCIENCES, 2019, 58(2): 33-37.

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