干旱区生态环境知识资源中心(Arid): 样地面积对黔中喀斯特石漠灌丛林植物多样性的影响

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	样地面积对黔中喀斯特石漠灌丛林植物多样性的影响
其他题名	The effect of plot size on shrub plant diversity in a karst desertification area,central Guizhou Province,China
	张喜 1; 霍达 1; 向凯旋 2; 侯贻菊 2; 谢涛 2; 崔迎春 1
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2019
卷号	38 期号:5 页码:1305-1313
中文摘要	在生境要素及植被发育程度相似的黔中喀斯特石漠灌丛林内,-次性完成12个200 m~2样地及其中96个25 m~2样方的调查,采用改进的巢式样方法研究植物多样性指数值随样地面积增加的变化规律,并为确定植物多样性研究的最小调查样地面积提供科学依据。结果表明:随着有序样地面积增大,灌木植物Patrick指数、Gleason指数及Margalef指数值增加,Shannon指数、Pielou指数及Alatalo指数值先增后减,样地间6种植物多样性指数值的差异性显著;Simpson指数及McIntosh指数值也先增后减,但样地间2种植物多样性指数值的差异性不显著。8种植物多样性指数按信息保存量≥80%划分,最小调查样地面积被划分为2种类型:100 m~2样地包括Patrick指数,反映物种数量多少;25 m~2样地包括Gleason指数、Margalef指数、Simpson指数、Shannon指数、Pielou指数、Alatalo指数及McIntosh指数,反映植物多样性及均匀度。8种植物多样性指数值的Connor & McCoy模型拟合效果较好、de Caprariis模型及Michaelis-Menton模型拟合效果较差,Patrick指数和Margalef指数的Arrhenius模型及Logistic模型拟合效果也较好。8种植物多样性指数与96个样方的灌木植物平均高度和草本植物平均盖度的相关性显著,与草本植物平均高度的相关性不显著。主成分分析表明,立地要素、林分密度及林分空间属性对石漠灌丛林灌木植物多样性的贡献率分别为4.3%~11.7%、35.4%~67.9%和20.4%~60.2%,灌木植物多样性主要受林分结构及发育程度的影响。
英文摘要	Stony desert shrub forests with similar habitat factors and vegetation development were investigated using twelve 200 m~2(20 m10 m) plots,including ninety-six 25 m~2(5 m5 m) subplots in central Guizhou karst desertification area.We assessed the impacts of plot size on plant diversity using the improved nest method,to provide a scientific framework for determining the minimum sampling plot size.Our results showed that an increase in the ordered sampling area in stony desert shrub forest caused the increase of the values of Patrick index,Gleason index and Margalef index,while caused the values of Shannon index,Pielou index and Alatalo index to increase first and then decrease.There was a significant difference in the values of six plant diversity indices among the different plot sizes.Simpson index and McIntosh index increased first and then decreased,but there was no significant difference between the two indices for the plot sizes.We classified the eight diversity indices into two groups according to the information retention rate≥80%:for the 100 m~2 plot size,the Patrick index that reflects the number of species was selected,and for the 25 m~2 plot size,the Gleason index,Margalef index,Simpson index,Shannon index,Pielou index,Alatalo index and McIntosh index that reflect plant diversity and evenness were selected.The Connor & McCoy model,with eight plant diversity index values,had a better fitting effect,the de Caprariis model and Michaels-Menton model had a worse fitting effect,and the Arrhenius model and Logistic model with Patrick index and Margalef index had a better fitting effect.There was a significant correlation between the eight plant diversity indices and the average height of shrubs and the average coverage of herbs,but no significant correlation between these indices and the average height of herbs across the 96 subplots.Results of principal component analysis showed that the contribution rates of site elements,stand density and stand spatial properties to the shrub diversity were 4.3%-11.7%,35.4%-67.9% and 20.4%-60.2%,respectively.The shrub diversity was mainly affected by forest structure and development level.
中文关键词	石漠灌丛林 ; 植物多样性指数 ; 样地面积-植物多样性关系 ; 最小样地面积 ; 岩石裸露率
英文关键词	stony desert shrub forest plant diversity index relationship between plot size and plant diversity minimum plot size rock bare rate
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6489592
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239483
作者单位	1.贵州省林业科学研究院, 贵阳, 贵州 550005, 中国; 2.贵州省林业科学研究院;;贵州大学, ;;, 贵阳;;贵阳, ;; 550005;;550025
推荐引用方式 GB/T 7714	张喜,霍达,向凯旋,等. 样地面积对黔中喀斯特石漠灌丛林植物多样性的影响[J],2019,38(5):1305-1313.
APA	张喜,霍达,向凯旋,侯贻菊,谢涛,&崔迎春.(2019).样地面积对黔中喀斯特石漠灌丛林植物多样性的影响.生态学杂志,38(5),1305-1313.
MLA	张喜,et al."样地面积对黔中喀斯特石漠灌丛林植物多样性的影响".生态学杂志 38.5(2019):1305-1313.