乌裕尔河人工辅助恢复湿地植物群落结构及多样性

Community Structure and Diversity of Artificially Assisted Restoration of Wetland Vegetation in Wuyuer River

通过对乌裕尔河受损湿地人工播种沙打旺、披碱草和谷稗草进行湿地植被恢复试验,结果表明:物种优势度Simpson指数为0.12～0.47,物种均匀度Pielon指数为0.62～0.91,Margalef指数为3.52～4.79,物种多样性Shannon-Wiener指数为1.51～3.85。谷稗草在恢复试验中形成单一优势种,均匀度较小;沙打旺在试验中优势不明显,丰富度大,均匀度高;披碱草试验中占植物群落结构主导地位,形成优势种,伴生有30%陆生旱生植物。

Restoration of wetland vegetation is an important part of wetland ecosystem restoration. The restoration experiments for wetland vegetation was conducted on artificially-sowed Astragalus adsurgens , Elyrnus dahuricus Echinochloacrusgalli in the damaged wetland of Wuyuer River. ResuIt shows that the species dominance Simp son index is 0.12 0.47, and the species uniformity Pielon index is 0.62 0.91. The Margalef index is 3.52 4.79, and the Shannon Wiener index of the species diversity is 1. 51 3. 85. In the recovery test, the Echinoch[oa crusgalli formed a single dominant species with less uniformity; the dominant species in Astragalus adsurgens is not obvious in the experiment, the richness is large, and the uniformity is high; the herbaceous plant dominated the plant com munity structure and formed an advantage, associated with 30% terrestrial xerophyte.