Health & Environmental Research Online (HERO)


Print Feedback Export to File
3296542 
Journal Article 
Impacts of land-use change on ecosystem service value in Changsha, China 
Liu Yun-guo; Zeng Xiao-xia; Xu Li; Tian Da-jun; Zeng Guang-ming; Hu Xin-jiang; Tang Yin-fang 
2011 
Yes 
Journal of Central South University of Technology
ISSN: 1005-9784
EISSN: 1993-0666 
JOURNAL OF CENTRAL SOUTH UNIV 
HUNAN 
18 
420-428 
Changsha, a typical city in central China, was selected as
the study area to assess the variations of ecosystem service value on the basis of land-use
change. The analysis not only included the whole city but also the urban district where the
landscape changed more rapidly in the center of the city. Two LANDSAT TM data sets in 1986 and
2000 and land use data of five urban districts from 1995 to 2005 were used to estimate the
changes in the size of six land use categories. Meanwhile, previously published value
coefficients were used to detect the changes in the value of ecosystem services delivered by each
land category. The result shows that the total value of ecosystem services in Changsha declines
from $1 009.28 million per year in 1986 to $938.11 million per year in 2000. This decline is
largely attributable to the increase of construction land, and the conversion from woodland and
water body to cropland to keep the crop production. In the five districts, there is $6.19 million
decline in ecosystem service value between 1995 and 2005. Yuelu District has the highest unit
ecosystem service value while Yuhua District has the lowest one. This may be attributed to the
greater conversion from cropland and grassland to woodland and water body with the increase of
construction land in Yuelu District. It is suggested that the increase rate of construction land
should be controlled rigorously and the area of woodland and water body should be increased or at
least retained in the study area. 
land-use change; urban expansion; city scale; district scale; central China; Changsha