Tree Species Diversity and Stand Attributes Differently Influence the Ecosystem Functions of Pinus yunnanensis Secondary Forests under the Climate Context

编号 030038603

推送时间 20230313

研究领域 森林经理 

年份 2022 

类型 期刊 

语种 英语

标题 Tree Species Diversity and Stand Attributes Differently Influence the Ecosystem Functions of Pinus yunnanensis Secondary Forests under the Climate Context

来源期刊 SUSTAINABILITY

期 第386期

发表时间 20220803

关键词 secondary forests;  ecosystem multifunctionality;  Pinus yunnanensis;  stand attribute diversity;  climate dependency;  forest functions; 

摘要 It has been widely reported that biodiversity, ecosystems, and functional traits are positively interrelated in natural?forest?ecosystems. However, it remains unclear whether these relationships should be expected in secondary forests. In this study, we hypothesized that the?multifunctionality?(EMF) is affected by the climate dependency of tree-species diversity and stand attribute diversity in a secondary?forest?dominated by Pinus yunnanensis. By using?forest?inventory data from a wide range of areas, we quantified the aboveground biomass, soil organic carbon, ratio of soil carbon and nitrogen, total soil nitrogen, total soil phosphorus, total soil potassium, tree-species diversity, and stand attribute diversity (i.e., individual tree-size variations). We also quantified the climate data, including the mean annual temperature (MAT), and mean annual precipitation (MAP). We found that a higher MAT directly constrains all the ecosystem multifunctionalities (EMFs) and three of the five single functions. A higher MAP was negatively correlated with all the EMFs and four of the five single functions, but indirectly through diversity indices. Stand attribute diversity better explained the EMFs rather than tree species diversity. Meanwhile, most of the single functions were highly correlated with stand attribute diversity rather than tree species diversity. These results highlight the importance of diversity in promoting?forest?multifunctionality?and underscore the importance of the climate context in defining EMF and shaping the relationship between diversity and ecosystem functions. We argue that the climate context should be taken into account when maximizing?forest?complexity, so as to enhance the?multifunctionality?of Pinus yunnanensis secondary forests.

服务人员 付贺龙

服务院士 唐守正

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