基于能值分析的西藏森林生态系统保育土壤价值估算

Estimation of Soil Conservation Value of Tibet Forestry Ecosystem Based on Energy Value

本文采用能值理论分析方法对西藏森林生态系统之保育土壤功能进行了价值评估,得出该系统年固土能值价值为1.30×10~8美元,保肥能值价值为0.62×10~8美元,保育土壤产生的总价值为1.92×10~8美元。由此可见,森林生态系统的保育土壤功能在其系统中价值贡献是比较大的。该结果可为政府制定宏观政策和战略措施,合理利用资源、改善生态环境提供决策依据。

In this paper, the conservation soil function of the forestry ecosystem in Tibet was evaluated by the energy value theory analysis method. It was concluded that the annual soil consolidation energy value of the system was 1.30×10^8 dollars, and the fertilizer conservation energy value was 0.62×10^8 dollars, and the total value of soil conservation was 1.92×10^8 dollars. Thus, it can be seen that the value contribution of the soil conservation function of the forestry ecosystem is relatively large in its system. The results can provide decision-making basis for the government to formulate macro policies and strategic measures, rationally use resources and improve ecological environment.