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Linkages between soil organic carbon fractions and carbon-hydrolyzing enzyme activities across riparian zones in the Three Gorges of China

文献类型：期刊论文

作者Zhang, Dandan2,3; Wu, Junjun2; Yang, Fan1,2; Chen, Qiong2,3; Feng, Jiao2; Li, Qianxi2; Zhang, Qian1,2; Wang, Weibo2; Cheng, Xiaoli1,2
刊名SCIENTIFIC REPORTS
出版日期2020-05-21
卷号10期号:1页码:11
ISSN号2045-2322
DOI10.1038/s41598-020-65200-z
英文摘要The effect of flooding on soil enzyme activities and soil organic carbon (SOC) dynamics remains a widely debated topic. Here, we investigated spatial variations in C-hydrolyzing enzyme activities, soil C contents in different fractions [i.e. labile and recalcitrant carbon (LC and RC)] from 6 sites with four different elevations at two soil depths (0-10cm and 10-30cm) in riparian zones of the Three Gorges Reservoir, China. At region scales, the SOC, RC contents, and RC/SOC (RIC) generally showed decreasing tendency from the upstream to the downstream. The C-hydrolyzing enzyme activities were higher in the midstream compared to other sites, which did not correspond well with the changing trend of SOC content, but matched with the spatial variation in LC content. At ecosystem scales, the RC and RIC declined with decreased elevations, but the LC showed opposite trend. Whereas, the four C-hydrolyzing enzyme activities and the specific enzyme activities were corresponded well with the changing trend of LC content. Soil C contents and enzyme activities were generally higher in top soil than deep soil across sites and elevation zones. These results reveal that the LC is the tightest factor in regulating C-hydrolyzing enzyme activities, whereas the soil C quality (i.e. RIC) and flooding collectively drive C-hydrolyzing enzyme activities possibly by affecting decomposition rates of SOC in the riparian zones.
资助项目Strategic Priority Research Program B of the Chinese Academy of Sciences[XDB15010200] ; National Natural Science Foundation of China[31770563]
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000560441900013
出版者NATURE PUBLISHING GROUP
源URL[http://202.127.146.157/handle/2RYDP1HH/15607]  
专题中国科学院武汉植物园
通讯作者Wang, Weibo; Cheng, Xiaoli
作者单位1.Yunnan Univ, Sch Ecol & Environm Sci, Kunming 650091, Yunnan, Peoples R China
2.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China
3.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Dandan,Wu, Junjun,Yang, Fan,et al. Linkages between soil organic carbon fractions and carbon-hydrolyzing enzyme activities across riparian zones in the Three Gorges of China[J]. SCIENTIFIC REPORTS,2020,10(1):11.
APA Zhang, Dandan.,Wu, Junjun.,Yang, Fan.,Chen, Qiong.,Feng, Jiao.,...&Cheng, Xiaoli.(2020).Linkages between soil organic carbon fractions and carbon-hydrolyzing enzyme activities across riparian zones in the Three Gorges of China.SCIENTIFIC REPORTS,10(1),11.
MLA Zhang, Dandan,et al."Linkages between soil organic carbon fractions and carbon-hydrolyzing enzyme activities across riparian zones in the Three Gorges of China".SCIENTIFIC REPORTS 10.1(2020):11.

入库方式： OAI收割

来源：武汉植物园

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