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刘旭升,李献文,孙涛.内蒙古磴口县林业生态建设工程综合效益评价.生态学报,2017,37(18):6196~6204 本文二维码信息
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内蒙古磴口县林业生态建设工程综合效益评价
The evaluation of comprehensive benefits of forestry ecological construction projects of Dengkou County, Inner Mongolia, China
投稿时间:2017-05-05  修订日期:2017-08-07
DOI: 10.5846/stxb201705050830
关键词林业生态建设  时间序列分析  经济效益  生态效益  社会效益
Key Wordsforestry ecological construction  time-series analysis  economic benefits  ecological benefits  social benefits
基金项目国家林业局林业公益性行业项目(201204202)
作者单位E-mail
刘旭升 国家林业局调查规划设计院, 北京 100714 liuxush@163.com 
李献文 中国农业大学资源与环境学院, 北京 100193  
孙涛 国家林业局调查规划设计院, 北京 100714  
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摘要:
林业生态建设工程具有重要的经济、生态和社会效益。内蒙古磴口县是林业生态建设工程实施的重点地区,对该区域林业生态建设工程的综合效益进行评价,具有代表性意义。依据评价指标体系构建原则、相关文献资料和当地实际情况,构建磴口县林业生态建设工程综合评价体系;在此基础上,通过时间序列分析,完成1991-2015年磴口县的林业生态建设工程综合效益量化评价。结果表明:在林业生态建设工程评价体系中,经济、生态和社会3个方面所占比重不同,其中,国内生产总值、造林面积、吸收二氧化硫年增加价值、削减粉尘年增加价值及农民人均纯收入五项指标在综合效益评价中权重比例较大;近年来磴口县林业生态建设工程综合效益较1990-1999年期间有所提高,但波动幅度较大,而近年来研究区综合效益趋于稳定并略有上升。磴口县林业生态建设工程在改善区域生态环境、遏制沙化土地扩展等方面的成效相对显著,有效促进了地区经济发展。
Abstract:
Forestry ecological construction projects have important economic, ecological, and social compound benefits. Dengkou County in Inner Mongolia is located at the northeast of the Ulan Buh Desert and is a typical ecologically fragile zone; it is also a key area for forestry ecological construction projects and has representative significance for evaluating the comprehensive benefits of the ecological construction area. Considering the principles of comprehensiveness, simplification, scientifically valid, representativeness, objectivity, feasibility, and comparability of the data, the evaluation indicator system was divided into economic, ecological, and social benefits. In this paper, we describe the development of a comprehensive indicator system for benefit evaluation based on these principles, published works, and the current situation. Firstly, 36 indicators were preliminarily selected from relevant literature. Secondly, 20 of these indicators were carefully chosen using experts' opinions. Thirdly, 11 indicators were finally confirmed according to the local characteristics and data accessibility. The final evaluation indicator system was composed of 11 indicators, comprising Gross Domestic Product (GDP), per capita added value of forestry, total output value of forestry, planting area, water conservation value, stocking value, annual increase in sulfur dioxide absorption value, annual increase in dust abatement value, net income of rural households, Engel's coefficient for farmers, and the social benefit of forest. Moreover, the comprehensive benefits of the forestry ecological construction engineering conducted between 1991 and 2015 were evaluated using Matlab 2015a software and time-series analysis method. The results show that the economic, ecological, and social benefits have different proportions in the comprehensive indicator system. The five indicators accounting for a large proportion in the evaluation system were the GDP, afforestation area, the annual increase value of sulfur dioxide absorption, the annual increase value of dust cutting, and the per capita net income of farmers. In addition, the current comprehensive benefits of forestry ecological construction project are better than those in the period of 1990-1999, but the degree of benefit varies greatly. The comprehensive benefits of forestry ecological construction engineering of Dengkou County were highest from 2000 to 2012 and were optimal following the implementation of several forestry ecological construction engineering projects. After 2013, the comprehensive benefits of the forestry ecological construction engineering have stabilized and increased slightly. The trend of the development of the comprehensive benefits in this area followed that of the planting area during this period, indicating that forestry considerably influences ecological construction and environmental protection. The results showed that policy adjustments had considerable influence on local economic, environmental, and social development. The trends in the change in the comprehensive benefits indicated that niche targeting and suitable ecological construction were helpful for steady improvement of the local comprehensive benefits. Forestry ecological construction facilitates the improvement of regional environment quality and preventing desertified land from expanding. Furthermore, it is also effective for promoting local economic development. The present study illustrates the changes in the comprehensive benefits of forestry ecological construction in Dengkou County over more than 20 years. The results can provide a scientific basis for local and regional ecological construction and environmental improvement.
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