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通过对黔中地区的黄心夜合野生资源进行调查,摸清其资源量、分布情况和生境条件,并对其群落物种多样性特征进行分析,结果显示:(1)黔中地区共有14个黄心夜合野生资源分布地,面积达4万多m2,共有大树454株,幼、小树132株,仅8个点有天然更新情况,资源量少而散,更新能力低;(2)各分布区的生境条件各异,适生范围较广;(3)全区仅有2个黄心夜合群落(乌当区王岗村群落和息烽县天台山群落),其群落多样性变化趋势基本一致,表现为:Shannon-Wiener指数,草本层>灌木层和乔木层;Pielou指数,草本层>灌木层>乔木层;Simpson指数,乔木层≥草本层>灌木层,说明草本层的物种丰富度最高,分布更均匀,乔木和草本的优势种非常明显,灌木层优势种不明显。
By investigating the resources of wild yellow croaker in Central Guizhou, the resources, distribution and habitat conditions of the yellow croaker were analyzed. The results showed that: (1) A total of 14 There are a total of 454 large trees, 132 young and small trees, with only 8 natural regeneration points, with little and scattered resources and low update capacity. (2) (3) There are only two communities of Huangxiannian (Wangang village in Wudang district and Tiantai mountain community in Xifeng county) with diverse habitats. (3) The results showed that: the Shannon-Wiener index, herb layer> shrub layer and tree layer; Pielou index, herb layer> shrub layer> tree layer; Simpson index, tree layer> herb layer> shrub layer, The highest species richness and distribution were more obvious. The dominant species of trees and herbs were obvious, and the dominant species of shrub layer were not obvious.