因此，将环境资源作为一个整体对待的环境资源法，其真正目的应该是保持生态系统整体的价值，而不是保护这一整体中某一部分的价值。
So, the real aim of Environmental and resources Law that treats the environment and resources as an integer is to hold the value of the whole ecosystem but not the part of it.
论文以2002年在上海五四农场稻田生态系统田间实验为基础，运用造林成本法、碳税法和工业制氧法对稻田生态系统气体调节功能及其价值进行研究。
In this study, we examined the gas regulation services supported by rice paddy ecosystems, based on the results of field experiments in Wusi Farm of Shanghai in 2002.
研究方法：生态系统服务价值评价方法、GIS技术、比较分析法。
Such methods were applied as ecosystem services value assessment, GIS and comparative analysis.
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