气候变化领域集成服务门户(CCPortal): Using Cs-137 measurements to investigate the impact of soil erosion on soil nutrients in alpine meadows within the Yangtze River region, China

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DOI	10.1016/j.coldregions.2016.12.008
	Using Cs-137 measurements to investigate the impact of soil erosion on soil nutrients in alpine meadows within the Yangtze River region, China
	Wang, Yibo; Sun, Yan; Niu, Fujun; Wu, Qingbai
发表日期	2017
ISSN	0165-232X
EISSN	1872-7441
起始页码	28
结束页码	33
卷号	135
英文摘要	In this study, the Cs-137 technique was used to study soil erosion and its impact on soil nutrients in an alpine meadow area of the upper Yangtze River. The results show that soil erosion significantly affects the redistribution of soil organic carbon (SOC), total nitrogen (N) and total phosphorus (P). To characterize the distribution and dynamics of Cs-137, SOC, total N and total P in the intensively eroded soil, the SOC, total N, total P stocks and Cs-137 were measured in a reference plot derived from values extracted at Beiluhe Basin. More than 90% of Cs-137 were concentrated in the upper 0-10 cm of the soil profile within the reference plot, presenting an exponentially decreasing distribution with depth along the whole profile (R-2 > 0.8). Soil nutrient content and distribution changed noticeably after the soil eroded. The top 0-5 cm of the soil profile lost 65%, 70%, 67% and 12% of Cs-137, total N, SOC and total P respectively. Cs-137 increased from 58% to 70% at depths of 10-20 cm and 20-30 cm, whereas total N and SOC values decreased from 77% to 25%. During the process of erosion, there is a close relation between (CS)-C-137 changes and SOC, total N and total P values. (C) 2016 Elsevier B.V. All rights reserved.
英文关键词	Soil erosion; Cs-137; Soil nutrients; Vegetation degradation; Yangtze River region
语种	英语
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
WOS关键词	SMALL FORESTED CATCHMENT ; QINGHAI-TIBET PLATEAU ; FALLOUT CS-137 ; PB-210(EX) MEASUREMENTS ; RADIOMETRIC TECHNIQUE ; VEGETATION COVER ; CARBON ; RATES ; DYNAMICS ; REDISTRIBUTION
WOS记录号	WOS:000393724200004
来源期刊	COLD REGIONS SCIENCE AND TECHNOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/240266
作者单位	[Wang, Yibo; Sun, Yan] Lanzhou Univ, Key Lab Western Chinas Environm Syst, Minist Educ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China; [Wang, Yibo; Niu, Fujun; Wu, Qingbai] Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yibo,Sun, Yan,Niu, Fujun,et al. Using Cs-137 measurements to investigate the impact of soil erosion on soil nutrients in alpine meadows within the Yangtze River region, China[J]. 中国科学院西北生态环境资源研究院,2017,135.
APA	Wang, Yibo,Sun, Yan,Niu, Fujun,&Wu, Qingbai.(2017).Using Cs-137 measurements to investigate the impact of soil erosion on soil nutrients in alpine meadows within the Yangtze River region, China.COLD REGIONS SCIENCE AND TECHNOLOGY,135.
MLA	Wang, Yibo,et al."Using Cs-137 measurements to investigate the impact of soil erosion on soil nutrients in alpine meadows within the Yangtze River region, China".COLD REGIONS SCIENCE AND TECHNOLOGY 135(2017).