SPATIAL HETEROGENEITY OF SOIL SEED BANKS IN SANDY GRASSLANDS UNDER FENCING AND GRAZING IN HORQIN SANDLAND, NORTHERN CHINA (SCI)

CORC > 寒区旱区环境与工程研究所 > 中科院寒区旱区环境与工程研究所（未分类） > 期刊论文

	SPATIAL HETEROGENEITY OF SOIL SEED BANKS IN SANDY GRASSLANDS UNDER FENCING AND GRAZING IN HORQIN SANDLAND, NORTHERN CHINA (SCI)
	Zuo X. A. ; Zhao X. Y. ; Zhao H. ; Zhang T. H. ; Wang S. K. ; Knops J. ; Kochsiek A.
刊名	Polish Journal of Ecology
	2013
卷号	61 期号:2 页码:221-231
ISSN号	ISBN/1505-2249
英文摘要	Understanding composition, structure and spatial heterogeneity in soil seed banks is important for the management of grassland ecosystem. Although the effect of fencing and grazing on vegetation composition is widely known, information on species composition, seed density and spatial heterogeneity of soil seed banks in sandy grasslands under fencing and grazing is still lacking. We measured the species composition and seed density of soil seed banks in fenced grassland, grazed grassland and grazed shrubby grassland in Horqin Sand Land, Northern China. By applying the geostatistical methods, we assessed how fencing and grazing affected spatial heterogeneity of soil seed banks in sandy grasslands. Total seed density and species richness in soil seed banks were lower in fenced grassland than in either grazed grassland or grazed shrubby grassland. Seed density and species richness of annual species in soil seed banks were also lower in fenced grassland than in either grazed grassland or grazed shrubby grassland, while those of perennial species showed a reverse trend. The analysis of spatial autocorrelation ranges, fractal dimensions and distribution pattern maps from geostatistical methods showed that spatial heterogeneity of seed density and species richness in soil seed banks were also lower in fenced grassland than in either grazed grassland or grazed shrubby grassland. Continuous fencing increases the seed density and species richness of perennial species in soil seed banks, as well as results in a decrease in spatial heterogeneity of seed density and species richness in soil seed banks. So, continuous fencing should be considered to restore the degraded sandy grasslands in management of semiarid grassland ecosystems.
收录类别	(SCI)
公开日期	2014-12-19
内容类型	期刊论文
源URL	[http://ir.casnw.net/handle/362004/23055]
专题	寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文
推荐引用方式 GB/T 7714	Zuo X. A.,Zhao X. Y.,Zhao H.,et al. SPATIAL HETEROGENEITY OF SOIL SEED BANKS IN SANDY GRASSLANDS UNDER FENCING AND GRAZING IN HORQIN SANDLAND, NORTHERN CHINA (SCI)[J]. Polish Journal of Ecology,2013,61(2):221-231.
APA	Zuo X. A..,Zhao X. Y..,Zhao H..,Zhang T. H..,Wang S. K..,...&Kochsiek A..(2013).SPATIAL HETEROGENEITY OF SOIL SEED BANKS IN SANDY GRASSLANDS UNDER FENCING AND GRAZING IN HORQIN SANDLAND, NORTHERN CHINA (SCI).Polish Journal of Ecology,61(2),221-231.
MLA	Zuo X. A.,et al."SPATIAL HETEROGENEITY OF SOIL SEED BANKS IN SANDY GRASSLANDS UNDER FENCING AND GRAZING IN HORQIN SANDLAND, NORTHERN CHINA (SCI)".Polish Journal of Ecology 61.2(2013):221-231.