论文部分内容阅读
森林生态服务价值的研究对构建绿色GDP核算体系、制定生态补偿标准、提高人类环境保护意识等有十分重要的意义。本文首先以卫星影像、地理空间数据、站点记录等资料,结合GIS、RS技术,估算了浙江省森林生态系统2010年的NPP、蒸散量、土壤保持量等;然后,采用能量替代法、机会成本法、影子工程法等估算了浙江省森林2010年的固碳释氧价值、有机物生产价值、水源涵养价值、营养物循环价值、水土保持价值;最后,对各种生态服务价值的逐月变异规律进行分析。结果表明:浙江省森林2010年的5种生态服务价值呈现明显的逐月变异规律;固碳释氧价值、有机物生产价值、营养物质循环价值、水土保持价值的逐月变异规律,均可用开口向下抛物线拟合;水源涵养价值的逐月变异规律,可用开口向上抛物线拟合。
The research on the value of forest ecological service is of great significance to establishing a green GDP accounting system, formulating ecological compensation standards and raising the awareness of human environmental protection. In this paper, we first estimate the NPP, evapotranspiration, soil conservation and so on of forest ecosystem in Zhejiang Province in 2010 with the satellite imagery, geospatial data and site records, combined with GIS and RS techniques. Then, we use energy substitution method, opportunity cost Method and shadow engineering method were used to estimate the carbon sequestration and oxygen release value, organic matter production value, water conservation value, nutrient circulation value and soil and water conservation value of forest in Zhejiang Province in 2010; and finally, the law of monthly variation of various ecological service values Analyze. The results showed that the five kinds of ecological service values of forest in Zhejiang Province showed obvious monthly variation patterns in 2010; the regularity of monthly carbon sequestration and oxygen release, the production value of organic matter, the circulation value of nutrients and the monthly conservation of soil and water conservation values were all open to Under the parabola fitting; water conservation value of the month-by-month variation of the law, the opening can be parabolic upward fit.