濒危植物大花黄牡丹与生境地群落特征的关系

苏建荣; 刘万德; 郎学东; 张炜银; 罗建; 汪书丽

濒危植物大花黄牡丹与生境地群落特征的关系

1.
中国林业科学研究院资源昆虫研究所,云南昆明 650224
2.
中国林业科学研究院森林生态环境与保护研究所,北京 100091
3.
西藏农牧学院资源与环境系,西藏林芝 860100
基金项目:
林业公益性行业科研专项"西藏珍稀野生花卉资源调查及保护对策研究"(200704037)

The Relationships of Paeonia ludlowii and Habitat Community Characteristics

1.
Research Institute of Resource Insect, Chinese Academy of Forestry, Kunming 650224,Yunnan, China
2.
Reseach Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry,Beijing 100091, China
3.
Department of Natural Resources and Environment, Tibet Agricultural and Animal Husbandry College, Nyingchi 860000, Tibet,China)

摘要: 在濒危植物大花黄牡丹生境地群落学调查的基础上,划分生境地群落类型,分析生境地群落特征,探讨大花黄牡丹与生境地群落特征的相互关系。研究结果表明:TWINSPAN将大花黄牡丹生境地群落划分为乔木群落和灌木群落。乔木群落中大花黄牡丹多度显著低于灌木群落,但大花黄牡丹平均胸径和平均高则与灌木群落无显著差异。群落特征与大花黄牡丹的相关性分析表明:大花黄牡丹多度及平均胸径与群落总多度、灌木多度及乔木物种丰富度存在显著的相关性,而大花黄牡丹多度与乔木多度存在显著负相关,大花黄牡丹平均胸径与群落平均高也存在显著负相关,大花黄牡丹平均胸径及平均高与藤本物种丰富度则存在显著的正相关,具有相关性的变量之间可用不同的回归方程较好的表述。此外,大花黄牡丹冠幅面积、高度、丛数及幼苗数量均与灌丛的冠幅面积存在显著的正相关,但大花黄牡丹幼苗数量在两种群落间无显著性差异。
- 濒危植物
- / 大花黄牡丹
- / 生境
- / 群落特征
Abstract: In this study, the stand parameters, species, and structurs of Paeonia ludlowii were investigated on nine plots (20 m×20 m).Their community types were classified by TWINSPAN and the relationship between Paeonia ludlowii and community features were analyzed. The results showed that the plant community was classified into tree community and shrub community by TWINSPAN. The community mean DBH(diameter at breast height), mean height, and basal areas were higher in the tree community than in the shrub community, however,the abundance was lower in the tree community than in the shrub community, and the two community types had no significant difference in crown density, elevation, and slope. The species richness was higher in the tree community than in the shrub community, and no significant difference were found in shrub, liana, and herb species richness. It was found that the tree community had higher abundance of P. ludlowii than the shrub community, however, no significant difference were found in two communities about mean DBH and mean height of P. ludlowii. The correlation between community characteristics and P.ludlowii was analyzed and it showed that the abundance and mean DBH of P. ludlowii were positively correlated with community abundance and shrub abundance respectively, and negatively correlated with tree species richness respectively. The abundance of P. ludlowii was negatively correlated with tree abundance, the mean DBH of P. ludlowii was negatively correlated with community mean height, and the mean DBH and mean height of P. ludlowii were positively correlated with liana species richness. The variables with correlation could be represented by different regression equations. It also found that crown-area, height, clump and seedling stems of P. ludlowii were positively correlated with crown-area of thicket, the two community types had no significant difference in seedling stems of P. ludlowii.
- endangered plant
- / Paeonia ludlowii
- / habitat
- / community characteristics

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濒危植物大花黄牡丹与生境地群落特征的关系

The Relationships of Paeonia ludlowii and Habitat Community Characteristics

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濒危植物大花黄牡丹与生境地群落特征的关系

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The Relationships of Paeonia ludlowii and Habitat Community Characteristics

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濒危植物大花黄牡丹与生境地群落特征的关系

The Relationships of Paeonia ludlowii and Habitat Community Characteristics

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濒危植物大花黄牡丹与生境地群落特征的关系

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The Relationships of Paeonia ludlowii and Habitat Community Characteristics

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