New Zealand Journal of Agricultural Research abstracts
Study of ecological capacity change and quantitative analysis of
ecological compensation in a nature reserve based on RS and GIS: a case
study on Po-yang Lake Nature Reserve, China
Cai Hai-Sheng1,2
Zhang Xue-Ling2
Zhu De-Hai1,*
1College of Information and Electrical Engineering
China Agricultural University
Beijing 100083, PR China
2College of Land Resource and Environment Jiangxi
Agricultural University
Nanchang 330045
PR China
*Author for correspondence: caihsh@263.net
Abstract To make a dynamic analysis of
ecological capacity
and a quantitative analysis of ecological compensation, to promote the
sustainable development in a nature reserve, and to make Po-yang Lake
Nature Reserve as an example, the authors obtained information on
land-use change in the years 1985, 1995, 2005 in Po-yang Lake Nature
Reserve based on RS and GIS. Ecological capacity was quantified
and its development change, spatial characteristics, and the
sustainable development status of the nature reserve with ecological
deficits and surpluses were analysed. Results show that land use had
been stable since the Po-yang Lake Nature Reserve came into existence.
The change compared grassland (increased 15.22%), water body (increased
7.05%) and unused land (decreased 18.19%). The ecological capacity
improved from 1985 to 2005 (the per capita ecological capacity from
0.8284 ha to 1.0534 ha). Among nine villages and towns in the reserve,
the ecological surplus villages and towns were Wucheng, Tiehe and
Changyi, the ecological balance villages and towns deficit were Sanjiao
and Shahu. The remainder were in ecological deficit. In all of the
nature reserve, the ecological capacity in the southeastern area was in
surplus but that in the north-west was in deficit. The degree of
ecological harmony was 1.414, which proves that the sustainable
development state in Po-yang Lake Nature Reserve was under sustainable
status. In 2005, the ecological footprint efficiency was 8382 yuan/ha,
and the agricultural ecological footprint efficiency was 3204 yuan/ha.
The lowest ecological compensation was 1725 yuan per family or 403 yuan
per person, and the equal ecological compensation was 3798 yuan per
family or 888 yuan per person.
Keywords ecological capacity; ecological compensation; GIS;
Po-yang Lake Nature Reserve; RS
A07088; Online publication date 25 January 2008; Received and
accepted 10 August 2007
New Zealand Journal of Agricultural Research, 2007, Vol. 50:
757–766
0028–8233/07/5005–0757 © The Royal Society of New Zealand 2007
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