Based on an on - the - spot survey of the cultivated plants and economically - important wild plants in Chengkou county, Se content in 8 main resource plants was determined.

在对重庆城口县主要农作物和野生经济植物进行实地调查的基础上，确定以8种主要资源植物为研究对象，对其含硒量及其分布进行了系统研究。

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Taking Daning County of Shanxi Province as the example, this paper probes into the remote sensing dynamic monitoring method for forest resource based on GIS, and analyzes the research results.

以山西省大宁县为例，探讨了基于GIS的森林资源遥感动态监测方法，并对研究结果进行了分析。

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