Explaining niche separation in tropical forests: feedbacks between root-fungal symbioses and soil phosphorus partitioning

GSTDTAP

项目编号	NE/M004864/1
	Explaining niche separation in tropical forests: feedbacks between root-fungal symbioses and soil phosphorus partitioning
	[unavailable]
主持机构	University of York
项目开始年	2015
	2015-03-23
项目结束日期	2018-03-22
资助机构	UK-NERC
项目类别	Research Grant
国家	英国
语种	英语
英文摘要	High diversity is a striking feature of almost all tropical forests, which provide numerous important ecosystem functions, and contribute to the resilience of communities in response to global change. Although several mechanisms have been proposed to explain the origin and maintenance of tropical forest diversity, recent theoretical work suggest that resource partitioning for soil phosphorus (P) is likely to be one of the main contributors to tropical plant diversity and coexistence. However, we currently lack vital experimental evidence to test this hypothesis, which requires understanding the relationships among mycorrhizal plant and fungal diversity, and soil P fractions in these systems, and how these associations relate to P utilisation. In this proposal, we will therefore determine the network of interactions among plants and mycorrhizal fungi in the field, and show using manipulation experiments whether this is related to edaphic factors, and in particular the composition and structure of the soil P pool. This aim requires coupling a comprehensive and unique dataset of spatial analyses of plant diversity with new analyses of mycorrhizal fungal diversity and soil nutrient pools in pristine tropical forest, and novel manipulation experiments. This project will show whether, despite overall nutrient limitation, the diversity of a mineral fraction in the soil is a driver of plant hyperdiversity. This will make a step-change in our understanding of the role of soil biodiversity in niche separation. The project will provide mechanistic insight into the maintenance of hyper-diverse plant communities and make a step-change in our understanding of the role of soil biodiversity in niche separation within tropical tree communities. It targets NERC priority areas in biodiversity, and will aid stakeholders who are charged with managing plant and soil biodiversity and the goods and services provided by tropical ecosystems (see Pathways to Impact).
来源学科分类	Natural Environment Research
文献类型	项目
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/85525
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	[unavailable].Explaining niche separation in tropical forests: feedbacks between root-fungal symbioses and soil phosphorus partitioning.2015.