|Table of Contents|

Evaluation of Land Ecosystem Service Values in Yulin District(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2009年第03期
Page:
302-305
Research Field:
环境地学
Publishing date:

Info

Title:
Evaluation of Land Ecosystem Service Values in Yulin District
Author(s):
WANG Xiao-feng
(School of Earth Sciences and Resources, Chang'an University, Xi'an 710054, Shaanxi, China)
Keywords:
ecosystem service;  value evaluation;  land use change;  Yulin District
PACS:
X37;F301
DOI:
-
Abstract:
Based on the 3 period data(1988, 1999 and 2002)of land use change of Yulin district, which belongs to a farming pasturing ecotone and is characterized by the diversity, complexity and vulnerability of ecological environment form, this paper analyzes the dynamic change of the ecosystem service values. The results show that the land use structure has been significantly changed from 1988 to 2002, land type reduced most is the farmlands, which reduced by 352 350 hm2; the second is original lands, which reduced by 285 765 hm2, the least is water area. The calculated result shows that the values of ecosystem services were 150.65×108 Yuan and 171.99×108 Yuan in 1988 and 2002 respectively, and the value of ecosystem services was increased by 21.34×108 Yuan in 2002 than that in 1988, which reveals that the ecological environment quality is currently improved in general.

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Memo

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Last Update: 2009-09-20