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| Spatiotemporal dynamics of ecosystem services value of Eucalyptus spp. plantation in Guangxi Yuanxiao reservoirwatershed |
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| DOI：10.16768/j.issn.1004-874X.2017.05.022 |
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| Abstract: |
| Eucalyptus spp. plantation and Pinus massoniana are two main plantation communities in Guangxi
Yuanxiao reservoir watershed. And as a kind of public welfare forest，P. massoniana community had turned out to
be a well-developed community within these 40 years. Recent years，driven by economic benefit，farmers cut down
most of the P. massoniana and planted Eucalyptus spp. plantation instead，and a serious of ecological environmental
problems had appeared ever since. Taking Yuanxiao reservoir watershed as an object，the study took advantage
of Remote Sensing technology，Global Positioning System and Geographic Information System and researched the
ecosystem service of the two plantation communities，including water conservation，environment purification，carbon
fixed and oxygen released，product provision，soil conservation and biodiversity protection. Results showed that the
ecosystem services value was 357 million Yuan in total from 2005 to 2015，and each indicator accounted for 38.86%，
18.12%，11.15%，16.81%，7.47% and 7.59%，respectively. Average unit value of P. massoniana community was
about 39 029 Yuan/（hm2·a） and Eucalyptus spp. plantation community was 12 011 Yuan/（hm2·a）. Taking the
ecosystem service value of 2005 in reservoir watershed as a reference value，283 million Yuan had lost from 2006 to
2015. |
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