Spatial assembly of grassland communities and interrelationships with productivity
文献类型:期刊论文
作者 | Cheng, Changjin; He, Nianpeng2,3; Li, Mingxu3; Xu, Li3; Sun, Osbert Jianxin |
刊名 | FUNCTIONAL ECOLOGY |
出版日期 | 2023-04-01 |
卷号 | N/A |
ISSN号 | 1365-2435 |
关键词 | community assembly interspecific segregation intraspecific aggregation phylogenetic diversity productivity spatial structure species diversity |
DOI | 10.1111/1365-2435.14306 |
文献子类 | Article; Early Access |
英文摘要 | 1. Knowledge on the fine--scale spatial aggregation is pertinent for deciphering plant community dynamics, as interactions among sessile plants mainly occur in the neighbourhood. However, the spatial assemblage mechanism and interrelationships with productivity remain poorly understood. 2. Here, species segregation index (Mscom) was used to quantify the interspecific segregation (or intraspecific aggregation) of the neighbourhood in plant communities from three contrasting plateaus. We employed the coordinates for 125,726 individual plants (within 1 m2 plots) sampled in natural grassland communities across two temperate grasslands (Loess Plateau and Mongolian Plateau) and one alpine grassland (Tibetan Plateau) to elucidate the assembly mechanisms of Mscom and interrelationships with above--ground net primary productivity (ANPP). 3. We found that these grassland communities tended to assemble into intraspecific aggregations; the phenomenon was more apparent in regions with low annual precipitation. In grassland communities on Loess Plateau, the strong intraspecific aggregation was mainly due to low sexual reproduction allocation; on Mongolian Plateau, reproductive allocation was also the dominant factor for Mscom variation, followed by the interactive effect of annual precipitation and species richness, whereas on Tibetan Plateau, low species richness was the main reason for increased intraspecific aggregation, followed by the interactive effect of annual precipitation and species richness, and reproductive allocation. More importantly, on all three plateaus, the independent influence of Mscom on ANPP is stronger than that of species and phylogenetic diversity. 4. We elucidated the potential mechanisms shaping spatial aggregation in grassland communities at large scale, and emphasize the critical role of spatial aggregation in predicting the variation of ANPP. |
WOS关键词 | PHYLOGENETIC DIVERSITY ; CLIMATE GRADIENT ; BIODIVERSITY ; COMPETITION ; PRECIPITATION ; POPULATION ; MECHANISMS ; RICHNESS ; PATTERNS ; ECOLOGY |
WOS研究方向 | Environmental Sciences & Ecology |
出版者 | WILEY |
WOS记录号 | WOS:000947853800001 |
源URL | [http://ir.igsnrr.ac.cn/handle/311030/190242] |
专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China 3.Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Cheng, Changjin,He, Nianpeng,Li, Mingxu,et al. Spatial assembly of grassland communities and interrelationships with productivity[J]. FUNCTIONAL ECOLOGY,2023,N/A. |
APA | Cheng, Changjin,He, Nianpeng,Li, Mingxu,Xu, Li,&Sun, Osbert Jianxin.(2023).Spatial assembly of grassland communities and interrelationships with productivity.FUNCTIONAL ECOLOGY,N/A. |
MLA | Cheng, Changjin,et al."Spatial assembly of grassland communities and interrelationships with productivity".FUNCTIONAL ECOLOGY N/A(2023). |
入库方式: OAI收割
来源:地理科学与资源研究所
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