研究地区主要植被类型有三类，即温性草原、高寒灌丛和高寒草甸。
There are three main vegetation types in the studyed area, they are warm steppe, alpine shrub and alpine meadow.
然后作者又提出求异质性在时间上的指数，这多半采用以下方法：生境：森林为—1，草甸或稀树草原为O。
The author then proposes to develop an index of heterogeneity in time, perhaps in the following manner: Habitat, applying the numbers-1 of forest, o for meadow or savanna.
生产力从高到低的顺序为沼泽草甸>高寒草甸>高寒草原>温性草原。
Swamp meadow had the highest community productivity, followed by alpine meadow, alpine steppe, and temperate steppe.
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