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Effects of land use
changes on values of ecosystem functions on coastal plain of
South Hangzhou Bay Bank, China
Li Jialin*, Zhang Dianfa, Yang Xiaoping and Tong Yiqing
Coastal Resources and Environment Research Center, Ningbo
University, Ningbo 315211, China.
*Corresponding author. E-mail:
lijialin@nbu.edu.cn
Accepted
20 May, 2009 |
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Land serves
as carrier of various terrestrial ecosystems. The variation
of ecosystem functions and its economic value composition
are mainly caused by land use and land cover changes. Based
on dynamic data of land use, this article applies the
methods in the ecology and ecologic economics to analyze the
economic value change of ecosystem functions on coastal
plain of south Hangzhou bay bank, China. The results showed
that there is a big difference among the ecological value
per unit area in different ecosystems. The land use change
led to the reduction of the total value of the ecosystem
functions on the coastal plain of south Hangzhou bay bank,
from 9.176
× 109 yuan RMB in 1987 to 8.989
× 109
yuan RMB in 2000, with a decrease of 1.861×108 yuan RMB, in which the value of ecosystem
material product increased from 5.872
× 108
yuan RMB in 1987 to 1.011
× 109 yuan RMB in 2000, and the value of ecosystem services
reduced from 8.588
× 109 yuan RMB in 1987 to 7.978
× 109
yuan RMB in 2000, and the increase of the value of
ecosystem material product was smaller than the decrease of
the value of ecosystem services. This variation was caused
by the transformation of the ecosystem with higher total
economic value and higher economic value of ecosystem
services such as mudflat and forestland into other land uses
with higher value of material products.
Key
words:
Land use change, ecosystem functions, economic value,
coastal plain of south Hangzhou bay bank. |
