植被群落
The indexes of importance value, species abundance and biomass about vegetation community in sand covered and loess region in Wuqi county in different time-interval are analyzed, through investigating the situation of the closed vegetational type.
通过调查吴旗县覆沙黄土区不同时段封禁造林情况,并对此地区植被群落的重要值、物种丰富度、生物量等指标进行分析研究。
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