中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Contribution of winter precipitation to tree growth persists until the late growing season in the Karakoram of northern Pakistan

文献类型:期刊论文

AuthorHuang, Ru1,3; Zhu, Haifeng1; Liang, Eryuan1; Braeuning, Achim2; Zhong, Linhao3; Xu, Chenxi4,5; Feng, Xiaoyu1,6; Asad, Fayaz1,6,7; Sigdel, Shalik Ram1,2; Li, Lingcheng7
SourceJOURNAL OF HYDROLOGY
Issued Date2022-04-01
Volume607Pages:9
KeywordSource water Tree ring latewood Stable oxygen isotope Frequency dependence Karakoram
ISSN0022-1694
DOI10.1016/j.jhydrol.2022.127513
English AbstractIdentifying the influence of seasonal source water on tree growth is essential to understand the effect of climate change on forest dynamics. However, due to the lack of available long-term monitoring studies, little is known on how long moisture originating from winter precipitation influences tree growth in the following growing season. Herein, we developed a tree-ring latewood oxygen isotope (delta O-18(LW)) chronology from the Karakoram (1955-2013) in northern Pakistan. We investigated whether winter climate signals are incorporated in the delta O-18(LW) and how long winter precipitation through soil moisture contributed to tree growth during the growing season. Significant correlations were found between delta O-18(LW) with both, winter to spring (January-May) temperature (r = 0.43, p < 0.05) and summer (July-August) precipitation (Local: r =-0.38, p < 0.05; Moisture source region: r =-0.44, p < 0.05). As shown by the cross-spectrum and commonality analysis, the climate signals in the delta O-18(LW) are frequency-dependent. Winter temperature signals stored in the delta O-18(LW) variations dominate at low frequencies more than 7 years (59% variance explained), while the summer precipitation signals dominate variations with higher frequencies shorter than 7 years (47% variance explained). Further analysis using reanalysis data shows that the growing season soil moisture at root depth (10-40 cm) is more strongly related to winter precipitation than to summer rainfall. Winter precipitation formed as ground snow provides root-zone soil moisture and tree growth via snowmelt during the growing season. Our study highlights that winter precipitation is the dominant water source contributing to Karakoram tree growth until the late growing season. Given the possibility of a decrease in winter precipitation under climate change in the Karakoram region, local forest is potentially threatened by the declining water supply during the growing season.
WOS KeywordOXYGEN-ISOTOPE RATIOS ; SUMMER PRECIPITATION ; RING DELTA-O-18 ; CELLULOSE ; SIGNALS ; MONSOON ; CARBON ; CHINA ; EAST
Funding ProjectNational Natural Science Foundation of China[42007407] ; National Natural Science Foundation of China[42022059] ; Sino-German mobility program[M-0393] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20050101] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0301] ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program ; West Light Foundation of the Chinese Academy of Sciences ; China Postdoctoral Science Foundation[2019M660814]
WOS Research AreaEngineering ; Geology ; Water Resources
Language英语
WOS IDWOS:000790573300006
PublisherELSEVIER
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Sino-German mobility program ; Sino-German mobility program ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Sino-German mobility program ; Sino-German mobility program ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Sino-German mobility program ; Sino-German mobility program ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Sino-German mobility program ; Sino-German mobility program ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation