干旱区生态环境知识资源中心(Arid): 湘中、湘南石漠化地区植物多样性研究

Arid

	湘中、湘南石漠化地区植物多样性研究
其他题名	Study on vegetation succession in rocky desertification region of central and southern Hunan province
	董旭杰; 彭继庆; 曹福祥; 曹基武; 徐永福; 喻勋林
来源期刊	中南林业科技大学学报
ISSN	1673-923X
出版年	2015
卷号	35 期号:12 页码:102-107
中文摘要	通过设立临时样地对湘中、湘南石漠化地区不同等级石漠化类型进行植被调查，结果表明：湘中共调查到植物种类82科128属144种，湘南共调查到植物种类76科116属143种，其中湘中和湘南石漠化地区乔木种类比较少，结构较单一，草本植物和灌丛植物种类比较丰富。物种丰富度指数（S）、Shannon-Wiener指数、 Pielou指数、Simpson指数、Sorensen指数、Jaccard指数均呈现先升后降的趋势，中度石漠化和轻度石漠化等级之间草本和灌木植物种类的相似度最高，草本植物在中度石漠化时期最丰富，灌丛植物在轻度石漠化时期种类最丰富；Sorensen指数、Jaccard指数计算结果均表明，在重度石漠化和轻度石漠化后期，草本和灌木植物物种组成发生了较大改变。Cody指数计算结果表明，灌丛植物在轻度石漠化时期以后，替代速率快速升高；草本植物呈现先降低后升高的趋势，在重度石漠化和中度石漠化之间、轻度石漠化和潜在石漠化之间替代速率比较高。
英文摘要	The vegetation of different stages of rocky desertification was studied in the central and the southern Hunan. The results show that, the flora in the central Hunan consists of 82 families, 128 genera, 144 species, the flora in the southern Hunan consists of 76 families, 116 genera, 143 species, of which arbor tree species were relatively less and community structure was single, herbaceous and shrub species were more abundant. Species richness index (S), Shannon-Wiener index, Pielou index, Simpson index, ISI index, ICJ index increased at first and then decreased, the similarity of shrubs and herbaceous plant species were high at the moderate rocky desertification and mild rocky desertification, herb was most abundant in moderate rocky desertification period, shrub plants was the most abundant species in light rocky desertification, ISI index, ICJ index showed that, the species of shrubs and herbaceous plant had a major changes in the severe rocky desertification and mild rocky desertification later. Substitution rate of shrub increased rapidly in the later period of mild rocky desertification. The species of herbaceous plants decreased gradually and then increased, replacement rate was relatively higher in the period of severe rocky desertification and moderate rocky desertification and the period of mild rocky desertification and the potential rocky desertification.
中文关键词	植物多样性 ; 石漠化地区 ; 植被演替
英文关键词	vegetation biodiversity rocky desertification area vegetation succession
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:5566122
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233850
作者单位	中南林业科技大学生命科学与技术学院, 长沙, 湖南 410004, 中国
推荐引用方式 GB/T 7714	董旭杰,彭继庆,曹福祥,等. 湘中、湘南石漠化地区植物多样性研究[J],2015,35(12):102-107.
APA	董旭杰,彭继庆,曹福祥,曹基武,徐永福,&喻勋林.(2015).湘中、湘南石漠化地区植物多样性研究.中南林业科技大学学报,35(12),102-107.
MLA	董旭杰,et al."湘中、湘南石漠化地区植物多样性研究".中南林业科技大学学报 35.12(2015):102-107.