气候变化领域集成服务门户(CCPortal): Woody encroachment induced earlier and extended growing season in boreal wetland ecosystems

CCPortal

DOI	10.3389/fpls.2024.1413896
	Woody encroachment induced earlier and extended growing season in boreal wetland ecosystems
	Sun, Hongchao; Wang, Wen J.; Liu, Zhihua; Wang, Lei; Bao, Suri G.; Ba, Shengjie; Cong, Yu
发表日期	2024
ISSN	1664-462X
起始页码	15
卷号	15
英文摘要	Woody plant encroachment (WPE), a widespread ecological phenomenon globally, has significant impacts on ecosystem structure and functions. However, little is known about how WPE affects phenology in wetland ecosystems of middle and high latitudes. Here, we investigated the regional-scale effects of WPE on the start (SOS), peak (POS), end (EOS), and length (GSL) of the growing season in boreal wetland ecosystems, and their underlying mechanisms, using remote sensing dataset during 2001-2016. Our results showed that WPE advanced the annual SOS and POS, while delaying EOS and extending GSL in boreal wetlands with these impacts increasing over time. When boreal wetland ecosystems were fully encroached by woody plants, the SOS and POS were advanced by 12.17 and 5.65 days, respectively, the EOS was postponed by 2.74 days, and the GSL was extended by 15.21 days. We also found that the impacts of WPE on wetland SOS were predominantly attributed to the increased degree of WPE (alpha), while climatic factors played a more significant role in controlling the POS and EOS responses to WPE. Climate change not only directly influenced phenological responses of wetlands to WPE but also exerted indirect effects by regulating soil moisture and alpha. Winter precipitation and spring temperature primarily determined the effects of WPE on SOS, while its impacts on POS were mainly controlled by winter precipitation, summer temperature, and precipitation, and the effects on EOS were mainly determined by winter precipitation, summer temperature, and autumn temperature. Our findings offer new insights into the understanding of the interaction between WPE and wetland ecosystems, emphasizing the significance of considering WPE effects to ensure accurate assessments of phenology changes.
英文关键词	northern ecosystem; climate change; phenology; vegetation greenness; woody encroachment
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:001233856300001
来源期刊	FRONTIERS IN PLANT SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/289277
作者单位	Chinese Academy of Sciences; Northeast Institute of Geography & Agroecology, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chinese Academy of Sciences; Shenyang Institute of Applied Ecology, CAS; Northeast Normal University - China
推荐引用方式 GB/T 7714	Sun, Hongchao,Wang, Wen J.,Liu, Zhihua,et al. Woody encroachment induced earlier and extended growing season in boreal wetland ecosystems[J],2024,15.
APA	Sun, Hongchao.,Wang, Wen J..,Liu, Zhihua.,Wang, Lei.,Bao, Suri G..,...&Cong, Yu.(2024).Woody encroachment induced earlier and extended growing season in boreal wetland ecosystems.FRONTIERS IN PLANT SCIENCE,15.
MLA	Sun, Hongchao,et al."Woody encroachment induced earlier and extended growing season in boreal wetland ecosystems".FRONTIERS IN PLANT SCIENCE 15(2024).