气候变化领域集成服务门户(CCPortal): Biophysical control of daytime and nighttime soil respiration during growing and non-growing seasons in a temperate deciduous forest

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DOI	10.1016/j.agrformet.2024.109998
	Biophysical control of daytime and nighttime soil respiration during growing and non-growing seasons in a temperate deciduous forest
	Han, Yajing; Wang, Gangsheng; Xiang, Daifeng; Zhou, Shuhao; Xiong, Lihua
发表日期	2024
ISSN	0168-1923
EISSN	1873-2240
起始页码	350
卷号	350
英文摘要	Accurate prediction of soil respiration (Rs) under climate change requires a comprehensive understanding of the dominant factors. However, the combined effects of multiple biophysical factors on long-term Rs remain uncertain due to the paucity of direct observations. Here, we developed a new method termed PLSR-lag, which integrates time lags and nonlinearity between variables into the Projection to Latent Structures Regression (PLSR) model. We employed PLSR-lag to explore the impacts of biophysical variables on Rs using 10-year field observations. Our results demonstrated a more significant correlation between nocturnal Rs and both photosynthetically active radiation (PAR) and surface soil temperature (STP10) during growing season. Soil surface temperature (STP10) dominates Rs throughout the year, while PAR, leaf area index (LAI), and soil surface moisture (SWC10) modulate Rs during the growing season only. PLSR-lag significantly enhanced the explanatory power of growing-season Rs by 13-19 % compared to the original PLSR method. These findings provide evidence that accounting for the delayed response of Rs to photosynthetic proxies (such as PAR), alongside the nonlinear response to soil moisture, would improve model accuracy. This improvement would also enhance our understanding of soil carbon cycle in response to climate and environmental changes.
英文关键词	Soil respiration; Biophysical factors; Time lag; Nonlinearity; Growing season and non-growing season; Projection to Latent Structures Regression (PLSR) model
语种	英语
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001225737100001
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/297201
作者单位	Wuhan University; Wuhan University
推荐引用方式 GB/T 7714	Han, Yajing,Wang, Gangsheng,Xiang, Daifeng,et al. Biophysical control of daytime and nighttime soil respiration during growing and non-growing seasons in a temperate deciduous forest[J],2024,350.
APA	Han, Yajing,Wang, Gangsheng,Xiang, Daifeng,Zhou, Shuhao,&Xiong, Lihua.(2024).Biophysical control of daytime and nighttime soil respiration during growing and non-growing seasons in a temperate deciduous forest.AGRICULTURAL AND FOREST METEOROLOGY,350.
MLA	Han, Yajing,et al."Biophysical control of daytime and nighttime soil respiration during growing and non-growing seasons in a temperate deciduous forest".AGRICULTURAL AND FOREST METEOROLOGY 350(2024).