Dynamic Study on the Values for Ecological Service Function of Pinus kesiya Forest in China

WEN Qing-zhong; ZHAO Yuan-fan; CHEN Xiao-ming; YANG Zi-xiang; AI Jian-lin; YANG Xiao-song

The long-term dynamic changes of the values for ecological service function of Pinus kesiya forest in China since 1987 had been studied. The results suggested that the area of Pinus kesiya had decreased and its value for ecological service function had also decreased from 365.1×108 yuan per year to 313.50×108 yuan per year from 1987 to 2002. Afterward, the value increased to 328.39×108 yuan per year at 2007 with the regeneration of Pinus kesiya forest. The value for ecological service function of Pinus kesiya per unit area had increased during the past 20 years from per hectare 5.44×104 yuan per year in 1987 to 5.56×104 yuan per year in 2007,and the average annual increase is 0.11%. Generally, the value showed strong positive correlation with the increasing per unit stock volume of Pinus kesiya, which indicated that the service value will increase with the improving of stand quality.

1. Yunnan Institute of Forest Inventory and Planning, Yunnan Forest Resource Monitoring Center, Kunming 650051,Yunnan,China

2. Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming 650224,Yunnan,China

Received Date: 2010-05-10

Abstract: The long-term dynamic changes of the values for ecological service function of Pinus kesiya forest in China since 1987 had been studied. The results suggested that the area of Pinus kesiya had decreased and its value for ecological service function had also decreased from 365.1×108 yuan per year to 313.50×108 yuan per year from 1987 to 2002. Afterward, the value increased to 328.39×108 yuan per year at 2007 with the regeneration of Pinus kesiya forest. The value for ecological service function of Pinus kesiya per unit area had increased during the past 20 years from per hectare 5.44×104 yuan per year in 1987 to 5.56×104 yuan per year in 2007,and the average annual increase is 0.11%. Generally, the value showed strong positive correlation with the increasing per unit stock volume of Pinus kesiya, which indicated that the service value will increase with the improving of stand quality.

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Reference (24)

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Dynamic Study on the Values for Ecological Service Function of Pinus kesiya Forest in China

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