气候变化领域集成服务门户(CCPortal): Nutritional changes in trees during drought-induced mortality: A comprehensive meta-analysis and a field study

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DOI	10.1111/gcb.17133
	Nutritional changes in trees during drought-induced mortality: A comprehensive meta-analysis and a field study
	He, Peng; Sardans, Jordi; Wang, Xiaoyu; Ma, Chengcang; Man, Liang; Penuelas, Josep; Han, Xingguo; Jiang, Yong; Li, Mai-He
发表日期	2024
ISSN	1354-1013
EISSN	1365-2486
起始页码	30
结束页码	1
卷号	30 期号:1
英文摘要	Both macronutrients and micronutrients are essential for tree growth and development through participating in various ecophysiological processes. However, the impact of the nutritional status of trees on their ability to withstand drought-induced mortality remains inconclusive. We thus conducted a comprehensive meta-analysis, compiling data on 11 essential nutrients from 44 publications (493 independent observations). Additionally, a field study was conducted on Pinus sylvestris L. trees with varying drought-induced vitality loss in the Visp forest in southern Switzerland. No consistent decline in tree nutritional status was observed during tree mortality. The meta-analysis revealed significantly lower leaf potassium (K), iron (Fe), and copper (Cu) concentrations with tree mortality. However, the field study showed no causal relationships between nutritional levels and the vitality status of trees. This discrepancy is mainly attributed to the intrinsic differences in the two types of experimental designs and the ontogenetic stages of target trees. Nutrient reductions preceding tree mortality were predominantly observed in non-field conditions, where the study was conducted on seedlings and saplings with underdeveloped root systems. It limits the nutrient uptake capacity of these young trees during drought. Furthermore, tree nutritional responses are also influenced by many variables. Specifically, (a) leaf nutrients are more susceptible to drought stress than other organs; (b) reduced tree nutrient concentrations are more prevalent in evergreen species during drought-induced mortality; (c) of all biomes, Mediterranean forests are most vulnerable to drought-induced nutrient deficiencies; (d) soil types affect the direction and extent of tree nutritional responses. We identified factors that influence the relationship between tree nutritional status and drought survival, and proposed potential early-warning indicators of impending tree mortality, for example, decreased K concentrations with declining vitality. These findings contribute to our understanding of tree responses to drought and provide practical implications for forest management strategies in the context of global change.
英文关键词	climate change; drought response; early-warning signals; nutrient deficiency; potassium; tree death
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS记录号	WOS:001151213000146
来源期刊	GLOBAL CHANGE BIOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/291001
作者单位	Tianjin Normal University; Swiss Federal Institutes of Technology Domain; Swiss Federal Institute for Forest, Snow & Landscape Research; Autonomous University of Barcelona; Centro de Investigacion Ecologica y Aplicaciones Forestales (CREAF-CERCA); Centro de Investigacion Ecologica y Aplicaciones Forestales (CREAF-CERCA); Zhejiang A&F University; Hebei University; Northeast Normal University - China
推荐引用方式 GB/T 7714	He, Peng,Sardans, Jordi,Wang, Xiaoyu,et al. Nutritional changes in trees during drought-induced mortality: A comprehensive meta-analysis and a field study[J],2024,30(1).
APA	He, Peng.,Sardans, Jordi.,Wang, Xiaoyu.,Ma, Chengcang.,Man, Liang.,...&Li, Mai-He.(2024).Nutritional changes in trees during drought-induced mortality: A comprehensive meta-analysis and a field study.GLOBAL CHANGE BIOLOGY,30(1).
MLA	He, Peng,et al."Nutritional changes in trees during drought-induced mortality: A comprehensive meta-analysis and a field study".GLOBAL CHANGE BIOLOGY 30.1(2024).