干旱区生态环境知识资源中心(Arid): BETA DIVERSITY AND COMMUNITY DIFFERENTIATION IN DRY PERENNIAL SAND GRASSLANDS

Arid

	BETA DIVERSITY AND COMMUNITY DIFFERENTIATION IN DRY PERENNIAL SAND GRASSLANDS
	Bartha, S.; Campetella, G.; Kertesz, M.; Hahn, I.; Kroel-Dulay, Gy.; Redei, T.; Kun, A.; Viragh, K.; Fekete, G.; Kovacs-Lang, E.
通讯作者	Bartha, S
来源期刊	ANNALI DI BOTANICA
ISSN	0365-0812
EISSN	2239-3129
出版年	2011
卷号	1 页码:9-18
英文摘要	The spatial variability of species composition was studied in perennial sand grasslands in Hungary at multiple scales. Three sites were compared along an aridity gradient. Existing differences in climate along this ca. 200 km gradient correspond to regional climate changes predicted for the next 20-30 years. Six stands of Festucetum vaginatae grasslands were selected at each site within 400 x 1200 m areas for representing the coarse-scale within-site heterogeneity. Fine-scale compositional heterogeneity of vegetation within stands was sampled by recording the presence of species along 52 m long circular belt transects of 1040 units of 5 cm x 5 cm contiguous microquadrats. This sampling design enabled us to study the patterns of species combinations at a wide range of scales. The highest variability of plant species combinations appeared at very fine scales, between 10 cm and 25 cm. Differences in beta diversity along the gradient were scale-dependent. We found a decreasing trend of beta diversity with increasing aridity at fine scale, and on the contrary, an increasing trend at landscape scale. We conclude that the major trend of the vegetation differentiation due to aridity is the decrease of compositional variability at fine-scale accompanied by a coarse-scale diversification.
英文关键词	ARIDITY GRADIENT BETA DIVERSITY COMPOSITIONAL VARIABILITY MULTIPLE SCALES RESILIENCE
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000216902300002
WOS关键词	INDEPENDENT ALPHA ; VEGETATION ; DESERTIFICATION ; GRADIENTS ; DYNAMICS ; PATTERNS ; HUNGARY ; SCALE
WOS类目	Plant Sciences ; Environmental Sciences
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/329719
作者单位	[Bartha, S.; Kertesz, M.; Kroel-Dulay, Gy.; Redei, T.; Viragh, K.; Fekete, G.; Kovacs-Lang, E.] Hungarian Acad Sci, Inst Ecol & Bot, Alkotmany Ut 2-4, H-2163 Vacratot, Hungary; [Campetella, G.] Univ Camerino, Dept Environm Sci, Bot & Ecol Sect, I-62032 Camerino, Italy; [Hahn, I.; Kun, A.] Eotvos Lorand Univ, Dept Plant Taxon & Ecol, H-1117 Budapest, Hungary
推荐引用方式 GB/T 7714	Bartha, S.,Campetella, G.,Kertesz, M.,et al. BETA DIVERSITY AND COMMUNITY DIFFERENTIATION IN DRY PERENNIAL SAND GRASSLANDS[J],2011,1:9-18.
APA	Bartha, S..,Campetella, G..,Kertesz, M..,Hahn, I..,Kroel-Dulay, Gy..,...&Kovacs-Lang, E..(2011).BETA DIVERSITY AND COMMUNITY DIFFERENTIATION IN DRY PERENNIAL SAND GRASSLANDS.ANNALI DI BOTANICA,1,9-18.
MLA	Bartha, S.,et al."BETA DIVERSITY AND COMMUNITY DIFFERENTIATION IN DRY PERENNIAL SAND GRASSLANDS".ANNALI DI BOTANICA 1(2011):9-18.