干旱区生态环境知识资源中心(Arid): Scale effects on spatial heterogeneity of herbaceous vegetation in desert steppe depend on plant community type

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DOI	10.1016/j.ecolind.2021.107769
	Scale effects on spatial heterogeneity of herbaceous vegetation in desert steppe depend on plant community type
	Zuo, Xiaoan; Mao, Wei; Qu, Hao; Chen, Min; Zhao, Shenglong; Liu, Lianxu; Wang, Shaokun; Yue, Ping; Ma, Xujun; Zhao, Xueyong; Medina-Roldan, Eduardo; Allington, Ginger R. H.
通讯作者	Zuo, XA (corresponding author), Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Urat Desert Grassland Res Stn, Lanzhou 730000, Peoples R China.
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2021
卷号	127
英文摘要	Spatial heterogeneity plays a crucial role in affecting the ecologial processes in natural ecosystems, yet how spatial heterogeneity of herbaceous vegetation in desert-grassland transitional zone varies with increased spatial scale are still poorly known. We measured plant height, density, species richness and aboveground plant biomass (AGB) at the small (0.25 x 0.5 km), medium (0.5 x 0.5 km) and large (0.5 x 1 km) spatial scales in two adjacent plant communities (shrub- and grass-dominated) in desert steppe, Inner Mongolia. We used the geostatistical methods to examine the magnitude and degree of spatial heterogeneity of herbaceous vegetation characteristics with the increasing scale in both two plant communities. We found that compared to grass-dominated community, shrub-dominated community had the lower plant height and density at the large scale, the higher AGB at the small or medium scale, and the lower species richness at all three scales. Plant height, density and AGB in grass-dominated community were higher at the large scale than at the small scale, but they did not differ across three scales in shrub-dominated community. Species richness in both two communities were higher at the small scale than at the medium or large scale. All vegetation characteristics at three scales had the higher spatial heterogeneity in shrub- than in grass-dominated community. Spatial heterogeneity of all vegetation characteristics in shrub-dominated community decreased from the small to the large scale, while their spatial heterogeneity of plant height, density and species richness in grass-dominated community increased with the increasing scale. Our study highlights that shrub encroachment can simplify community composition and amplify spatial heterogeneity of herbaceous vegetation at multiple scales. Scale effects on spatial heterogeneity of herbaceous vegetation in desert steppe are dependent on plant community dominated by shrub or grass.
英文关键词	Conceptual model Geostatistical analysis Grassland Multiple spatial-scale Shrub community Spatial dependence
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000659186200002
WOS关键词	AREAL UNIT PROBLEM ; SHRUB-ENCROACHMENT ; SPECIES RICHNESS ; RETAMA-SPHAEROCARPA ; LAND-USE ; SOIL RESPIRATION ; INNER-MONGOLIA ; SANDY LAND ; GRASSLANDS ; CARBON
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350013
作者单位	[Zuo, Xiaoan; Mao, Wei; Qu, Hao; Chen, Min; Zhao, Shenglong; Liu, Lianxu; Wang, Shaokun; Yue, Ping; Ma, Xujun; Zhao, Xueyong] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Urat Desert Grassland Res Stn, Lanzhou 730000, Peoples R China; [Zuo, Xiaoan] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou 730000, Peoples R China; [Zuo, Xiaoan] Key Lab Stress Physiol & Ecol Cold & Arid Reg, Lanzhou 730000, Gansu, Peoples R China; [Medina-Roldan, Eduardo] Xian Jiaotong Liverpool Univ, Dept Hlth & Environm Sci, Suzhou 215000, Peoples R China; [Allington, Ginger R. H.] George Washington Univ, Dept Geog, Washington, DC USA
推荐引用方式 GB/T 7714	Zuo, Xiaoan,Mao, Wei,Qu, Hao,et al. Scale effects on spatial heterogeneity of herbaceous vegetation in desert steppe depend on plant community type[J]. 中国科学院西北生态环境资源研究院,2021,127.
APA	Zuo, Xiaoan.,Mao, Wei.,Qu, Hao.,Chen, Min.,Zhao, Shenglong.,...&Allington, Ginger R. H..(2021).Scale effects on spatial heterogeneity of herbaceous vegetation in desert steppe depend on plant community type.ECOLOGICAL INDICATORS,127.
MLA	Zuo, Xiaoan,et al."Scale effects on spatial heterogeneity of herbaceous vegetation in desert steppe depend on plant community type".ECOLOGICAL INDICATORS 127(2021).