Relationship of Climatic and Forest Factors to Drought- and Heat-Induced Tree Mortality
Zhang, QY; Shao, MA; Jia, XX; Wei, XR
2017
Source PublicationPLOS ONE
ISSN1932-6203
Volume12Issue:1Pages:-
AbstractTree mortality due to warming and drought is a critical aspect of forest ecosystem in responding to climate change. Spatial patterns of tree mortality induced by drought and its influencing factors, however, have yet to be documented at the global scale. We collected observations from 248 sites globally where trees have died due to drought and then assessed the effects of climatic and forest factors on the rate of tree mortality. The global mean annual mortality rate was 5.5%. The rate of tree mortality was significantly and negatively correlated with mean annual precipitation (P<0.01). Tree mortality was lowest in tropical rainforests with mean annual precipitation >2000 mm and was severe in regions with mean annual precipitation <1000 mm. Mortality rates varied amongst species. The global annual rate of mortality was much higher for gymnosperms (7.1%) than angiosperms (4.8%) but did not differ significantly between evergreen (6.2%) and deciduous (6.1%) species. Stand age and wood density affected the mortality rate. Saplings (4.6%) had a higher mortality rate than mature trees (3.2%), and mortality rates significantly decreased with increasing wood density for all species (P < 0.01). We therefore concluded that the tree mortality around the globe varied with climatic and forest factors. The differences between tree species, wood density, stand density, and stand age should be considered when evaluating tree mortality at a large spatial scale during future climatic extremes.
SubtypeJournal
Subject AreaScience & Technology - Other Topics
WOS Subject ExtendedMultidisciplinary Sciences
WOS KeywordPINYON-JUNIPER WOODLANDS ; TROPICAL FORESTS ; PINUS-EDULIS ; CARBON METABOLISM ; TEMPERATE FOREST ; HYDRAULIC LIMITS ; PONDEROSA PINE ; MIXED-CONIFER ; RAIN-FOREST ; DIE-OFF
Indexed BySCI
Language英语
WOS IDWOS:000392372300032
PublisherPUBLIC LIBRARY SCIENCE
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44114
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Zhang, QY,Shao, MA,Jia, XX,et al. Relationship of Climatic and Forest Factors to Drought- and Heat-Induced Tree Mortality[J]. PLOS ONE,2017,12(1):-.
APA Zhang, QY,Shao, MA,Jia, XX,&Wei, XR.(2017).Relationship of Climatic and Forest Factors to Drought- and Heat-Induced Tree Mortality.PLOS ONE,12(1),-.
MLA Zhang, QY,et al."Relationship of Climatic and Forest Factors to Drought- and Heat-Induced Tree Mortality".PLOS ONE 12.1(2017):-.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, QY]'s Articles
[Shao, MA]'s Articles
[Jia, XX]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, QY]'s Articles
[Shao, MA]'s Articles
[Jia, XX]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, QY]'s Articles
[Shao, MA]'s Articles
[Jia, XX]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.