The ecological restoration of Yangpaihe watershed in Yangtze upper-reaches is researched with the methods of overall inventory, sample plot survey and indoor room analysis.

通过野外全面调查、样点调查、样方调查和室内测试分析，对云南长江上游洋派河小流域退化生态系统的人为诱导修复进行了研究。

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With the help of sample plot survey and sampling analysis, the water-containing rate and amount of resources of all kinds of combustibles under alpine pine forest in Nyingchi County are analyzed.

通过样地调查和取样分析，分析了林芝县高山松林下各类可燃物的含水率及其资源量。

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Meanwhile, a national survey is helping to plot dragonflies and damselflies on the map.

BBC: Rare dragonfly visitor at reserve