气候变化领域集成服务门户(CCPortal): Diverse responses of radial growth to climate across the southern part of the Asian boreal forests in northeast China

CCPortal

DOI	10.1016/j.foreco.2019.117759
	Diverse responses of radial growth to climate across the southern part of the Asian boreal forests in northeast China
	Li W.; Jiang Y.; Dong M.; Du E.; Zhou Z.; Zhao S.; Xu H.
发表日期	2020
ISSN	0378-1127
卷号	458
英文摘要	In the context of rapid warming, a better understanding of the spatially varying growth-climate responses of widely-distributed forests is essential for predicting the warming effects on trees, so as to guide the forest management. Here, we characterized the growth-climate relationships of the southern part of Asian boreal forests in northeast China at multiple levels to deduce how warming impacts tree growth. Specially, we aimed to distinguish climatic limitations to growth and clarify how local climate determines the response pattern. We established a tree-ring network, which includes 516 trees from 20 populations across the study area. We then correlated regional, population, and tree chronologies with climate data. In the north of the study area, radial growth responded positively to temperature before the growing season and precipitation during the growing season. In contrast, growth in the south responded positively to precipitation and negatively to temperature during the growing season. Thus, diverse growth patterns exist in response to climate. The extent to which growth was limited by climate varied along the latitudinal climate gradient. The north parts were limited by both frost and moisture, whereas the central-south parts were limited by moisture deficit induced by high temperature. The growth-climate response was quantified as the percentage of significant tree-level correlations. Through associating this quantitative index of each population with local climate, we confirmed the decisive role of local temperature in forming the spatial heterogeneity of response. We also confirmed that warming negatively affected tree growth across the study area. Our models predict that as warming continues, the trees threatened by high temperature in summer will increase by 45.5%–63.6% by the end of this century. All these findings warn of growth declines in Asian boreal forests, and suggest the need for urgent efficient regionally-specific measures to sustain the forest productivity in this region. © 2019 Elsevier B.V.
关键词	Moisture Population statistics Boreal forests Climate response Dendroecology Forest growth Radial growth Tree growth Forestry boreal forest climate effect dendrochronology dendroecology forest management growing season heterogeneity high temperature latitudinal gradient moisture content Area Forestry Forests Growing Season Growth High Temperature Moisture Trees China
语种	英语
来源机构	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133100
推荐引用方式 GB/T 7714	Li W.,Jiang Y.,Dong M.,et al. Diverse responses of radial growth to climate across the southern part of the Asian boreal forests in northeast China[J]. Forest Ecology and Management,2020,458.
APA	Li W..,Jiang Y..,Dong M..,Du E..,Zhou Z..,...&Xu H..(2020).Diverse responses of radial growth to climate across the southern part of the Asian boreal forests in northeast China.,458.
MLA	Li W.,et al."Diverse responses of radial growth to climate across the southern part of the Asian boreal forests in northeast China".458(2020).