干旱区生态环境知识资源中心(Arid): Comportments of arid grazing land plant diversity: a temporal assessment with bottom-up and top-down factors

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	Comportments of arid grazing land plant diversity: a temporal assessment with bottom-up and top-down factors
	Mathur, Manish
通讯作者	Mathur, M (corresponding author), ICAR Cent Arid Zone Res Inst, Jodhpur 342003, Rajasthan, India.
来源期刊	RANGE MANAGEMENT AND AGROFORESTRY
ISSN	0971-2070
出版年	2020
卷号	41 期号:2 页码:200-208
英文摘要	In the present study, behaviors of arid grazing lands richness (S), evenness (E), Shannon-Wiener diversity (H') and SHE patterns were temporally assessed (pulse, inter-pulse and non-pulse) along with their intra and interrelationships with soil and habitat factors. Comportments of these diversity variables were also examined in the cumulative data set. Higher average species richness (9.0) and diversity (2.0) were recorded during pulse event while the lowest values for both these parameters (4.0 and 0.9, respectively) were recorded during non-pulse event. Statistically, temporal significant variability's in both these components were exhibited by student t test. Further, both species richness and diversity were positively related with each other during all the sampling period (r(2) = 0.87, 0.64 and 0.73) and in cumulative data set (r(2) = 0.89). A positive relationship (r(2) = 0.77) between diversity and evenness were recorded only during interpulse (winter), however, cumulatively both diversity (r(2) = -0.43) and richness (r(2) = - 0.49) were negatively related with evenness. Log-normal SHE patterns were recorded during pulse and non-pulse periods, while log-series pattern was recorded during inter-pulse period. Partial Least Square (PLS) regression with individual diversity index revealed significant impacts of soil variables (electric conductivity, pH, soil moisture and nitrogen) and per cent bare surface size, while soil organic carbon, botanical composition of climax species along with bare surface size were controlling factors for SHE pattern. Model equations for all the diversity variables and for SHE pattern were prepared with selection of significant predictors with the help of variables importance for the projection (VIPs).
英文关键词	Arid region Evenness Grazing land Richness SHE analysis
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000645010100002
WOS类目	Agronomy
WOS研究方向	Agriculture
来源机构	ICAR Central Arid Zone Research Institute
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349147
作者单位	[Mathur, Manish] ICAR Cent Arid Zone Res Inst, Jodhpur 342003, Rajasthan, India
推荐引用方式 GB/T 7714	Mathur, Manish. Comportments of arid grazing land plant diversity: a temporal assessment with bottom-up and top-down factors[J]. ICAR Central Arid Zone Research Institute,2020,41(2):200-208.
APA	Mathur, Manish.(2020).Comportments of arid grazing land plant diversity: a temporal assessment with bottom-up and top-down factors.RANGE MANAGEMENT AND AGROFORESTRY,41(2),200-208.
MLA	Mathur, Manish."Comportments of arid grazing land plant diversity: a temporal assessment with bottom-up and top-down factors".RANGE MANAGEMENT AND AGROFORESTRY 41.2(2020):200-208.

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