干旱区生态环境知识资源中心(Arid): Schrenk spruce leaf litter decomposition varies with snow depth in the Tianshan Mountains

Arid

DOI	10.1038/s41598-020-76368-9
	Schrenk spruce leaf litter decomposition varies with snow depth in the Tianshan Mountains
	Gong, Lu; Chen, Xin; Zhang, Xueni; Yang, Xiaodong; Cai, Yanjiang
通讯作者	Gong, L
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2020
卷号	10 期号:1
英文摘要	Seasonal snowfall, a sensitive climate factor and the main form of precipitation in arid areas, is important for forest material circulation and surface processes and profoundly impacts litter decomposition and element turnover. However, how the thickness and duration of snow cover affect litter decomposition and element release remain unclear. Thus, to understand the effects of snow on litter decomposition, fiber degradation and their relationships with soil properties, a field litterbag experiment was conducted under no, thin, medium, and thick snow cover in a Schrenk spruce (Picea schrenkiana) forest gap in the Tianshan Mountains. The snow cover period exhibited markedly lower rates of decomposition than the snow-free period. The litter lignin, cellulose and N concentrations in the pregrowing season and middle growing season were significantly higher than those in the deep-freeze period, and the litter C and P concentrations were significantly higher during the onset of the freeze-thaw period, deep-freeze period and thaw period than in the late growing season. The litter cellulose, C and N concentrations were significantly higher under thick snow cover than under no snow cover in most stages. Moreover, the correlations among litter mass, cellulose, lignin/cellulose and soil bulk density varied with snow cover depth. The temporal variations and snow cover depth affected the decomposition process significantly. The former affected lignin, cellulose and P, and the latter affected cellulose, C and N and changed the litter-soil properties relationship. These differences provide references for understanding how winter conditions affect material cycling and other ecological processes under climate change.
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000594821300004
WOS关键词	WINTER CLIMATE-CHANGE ; FOLIAR LITTER ; NITROGEN MINERALIZATION ; CELLULOSE DYNAMICS ; DECAY-RATES ; FOREST ; SOIL ; CARBON ; MANIPULATION ; LIGNIN
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327798
作者单位	[Gong, Lu; Chen, Xin; Zhang, Xueni; Yang, Xiaodong] Xinjiang Univ, Coll Resources & Environm Sci, Urumqi 830046, Peoples R China; [Gong, Lu; Chen, Xin; Zhang, Xueni; Yang, Xiaodong] Minist Educ, Key Lab Oasis Ecol, Urumqi 830046, Peoples R China; [Cai, Yanjiang] Zhejiang A&F Univ, State Key Lab Subtrop Silviculture, 666 Wusu St, Hangzhou 311300, Peoples R China
推荐引用方式 GB/T 7714	Gong, Lu,Chen, Xin,Zhang, Xueni,et al. Schrenk spruce leaf litter decomposition varies with snow depth in the Tianshan Mountains[J]. 新疆大学,2020,10(1).
APA	Gong, Lu,Chen, Xin,Zhang, Xueni,Yang, Xiaodong,&Cai, Yanjiang.(2020).Schrenk spruce leaf litter decomposition varies with snow depth in the Tianshan Mountains.SCIENTIFIC REPORTS,10(1).
MLA	Gong, Lu,et al."Schrenk spruce leaf litter decomposition varies with snow depth in the Tianshan Mountains".SCIENTIFIC REPORTS 10.1(2020).