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以安太堡露天煤矿生态复垦区0.8 hm2刺槐+油松混交林样地为研究平台,基于样地内320个1 m×1 m草本样方的调查数据,对复垦17年后草本层的物种组成、基本数量特征和空间分布等进行研究.结果表明:样地内草本层物种组成丰富,共调查到44种植物,隶属于16科30属,其中禾本科和菊科为优势科,黄花蒿、披碱草和大籽蒿为优势种,初期种植种无芒雀麦等退化严重;重要值、多度和频度在各科和各种之间差值较大;优势科和优势种分布广泛,但物种分布呈现出明显的空间异质性.
Taking 0.8 hm2 Robinia pseudoacacia + Pinus tabulaeformis mixed forest plots in the Antacao open-pit coal mine ecological reclamation area as the research platform, based on the survey data of 320 1 m × 1 m herb-type quadrats in the sample plots, Species composition, basic quantitative characteristics and spatial distribution, etc. The results showed that the species composition of herbaceous plants in the sample was rich, and 44 species were investigated, belonging to 16 families and 30 genera, of which Gramineae and Asteraceae were the dominant families, Artemisia annua , Elymus dahurica and Artemisia selengensis were the dominant species, and the initial plant species Bromus inermis was seriously degraded. The significant value, abundance and frequency differed greatly among different families and species. The dominant species and the dominant species were distributed However, the distribution of species showed obvious spatial heterogeneity.