Simpson index of aquatic swamp is higher than mound swamp.
水沼泽植物群落的优势度指数大于丘状沼泽。
The Simpson (D) index of the residence community with more green space functional blocks is higher , and that of residence community built earlier.
通过管理成本、观赏价值、生态效益的对比，在城市住宅区绿化中，林木的优点远远超过铺种草坪。
The Simpson (D) index of the residence community with more green space functional blocks is higher , and that of residence community built earlier.
通过管理成本、观赏价值、生态效益的对比，在城市住宅区绿化中，林木的优点远远超过铺种草坪。
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