气候变化领域集成服务门户(CCPortal): Impacts of snow cover seasonality on spring land surface phenology of forests in Changbai mountains of Northeast China

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DOI	10.1016/j.scitotenv.2024.171965
	Impacts of snow cover seasonality on spring land surface phenology of forests in Changbai mountains of Northeast China
	Chang, Shuai; Huang, Fang; He, Hong S.; Liu, Kai; Krohn, Justin
发表日期	2024
ISSN	0048-9697
EISSN	1879-1026
起始页码	927
卷号	927
英文摘要	Snow cover phenology (SCP) strongly affects forest spring phenology (the start of growing season, SOS), but the underlying mechanism of the relationship varies. In this study, we aimed to analyze the relationship between forest SOS and SCP, and investigate the mechanisms about how changes of SCP affect forest SOS. To do so, we extracted forest SOS and SCP from multiple remote sensing datasets and analyzed the spatio-temporal patterns of both in Changbai Mountains (2001-2020). We assessed the relationships between SCP and forest SOS using partial least squares regression analysis and investigated the potential mechanism of SCP changes affecting on forest SOS using path analysis. We found earlier forest SOS (-0.5 days/year), prolonged snow cover duration (SCD, 0.43 day/year), and earlier snow cover end day (SCED, -0.1 days/year) in the region. The results indicated that SCD showed negative influence while SCED showed positive influence on forest SOS in most of the region. Results revealed that the influence of SCP on forest SOS was mainly through altering spring temperature and the dominant path of SCP influencing forest SOS followed hydrothermal gradients. Our study reveals new insights into the influence of changing SCP on forest SOS, which provides the theoretical basis for including SCP in the phenological models.
英文关键词	Changbai Mountains; Influence mechanism; Path analysis; Snow cover phenology; The start of growing season
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001225071000001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/296443
作者单位	Northeast Normal University - China; University of Missouri System; University of Missouri Columbia; University of Missouri System; University of Missouri Columbia
推荐引用方式 GB/T 7714	Chang, Shuai,Huang, Fang,He, Hong S.,et al. Impacts of snow cover seasonality on spring land surface phenology of forests in Changbai mountains of Northeast China[J],2024,927.
APA	Chang, Shuai,Huang, Fang,He, Hong S.,Liu, Kai,&Krohn, Justin.(2024).Impacts of snow cover seasonality on spring land surface phenology of forests in Changbai mountains of Northeast China.SCIENCE OF THE TOTAL ENVIRONMENT,927.
MLA	Chang, Shuai,et al."Impacts of snow cover seasonality on spring land surface phenology of forests in Changbai mountains of Northeast China".SCIENCE OF THE TOTAL ENVIRONMENT 927(2024).