Divided the forest landscape according to the land type and vegetation characteristic, then used GIS software to carry on digitization, calculated the patch index.

根据土地类型和植被特征划分景观类型，然后运用GIS软件进行数字化，并计算斑块指标。

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The test of grazing of different intensity indicated that the grazing intensity had different influence for water content in soil top layer, vegetation characteristic, and sheep increasing weight.

通过不同强度的放牧试验表明，不同的放牧强度对土壤表层含水量、植被特征和绵羊增重都有程度不同的影响。

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One set of unchanging wavelengths is characteristic of water, another is indicative of vegetation, and so on.

一组不变的波长是水的特征，另一组是表示植被的特征等等。

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They would collect environmental samples such as soil, rubble or vegetation that may have been in contact with the chemical warfare agent and may still contain characteristic degradation products or even traces of it.

BBC: How to investigate chemical weapons allegations