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Spatial variation in soil, SOC, and total N redistribution on affected and non affected slope terraces due to the 8.0 Wenchuan Earthquake in 2008 by using Cs-137 technique
Su, Zhengan1,2; Li, Yan1; Zhang, Jianhui2; Xiong, Donghong2; Dong, Yifan2; Zhang, Su2,3; Zhang, Baojun2,3; Yang, Dan2,3
Corresponding AuthorZhengan Su
2017-08-01
Source PublicationCATENA
ISSN0341-8162
Volume155Pages:191-199
SubtypeArticle
Abstract

Using the Cs-137 technique, we assessed spatial variation in soil erosion and its impact on lateral movements of soil organic carbon (SOC) and total nitrogen (total N) in a terraced series and a complex slope in the Longmenshan Fault zone, China. The complex slope derived from three terraced fields with damaged banks, resulting from the 8.0 Wenchuan Earthquakes in 2008. The terraced series and complex slope are the dominant sloping farmland patterns in this area, which represent for earthquake non-affected and affected sloping farmland, respectively. Soil loss occurred over the upper parts of slopes and deposition occurred towards the downslope boundary of each terrace. Also, soil loss occurred on upper terraces and soil accumulation on lower terraces. Net soil erosion rates for the terraced toposequence were estimated at - 3.70 +/- 14.38 Mg ha(-1) yr(-1), indicating the terraced toposequence played an important role in soil conservation. For the complex slope, higher soil erosion rates occurred at the summit and other slope positions with greater slope curvature, and soil accumulation occurred at the toe slope and other slope positions with lower slope curvature (15 m, 25 m, and 40 m). In addition to water erosion, collapses resulting from earthquake and tillage erosion were also important soil erosion processes for the complex slope. Moreover, Net soil erosion rate on the complex slope (4.89 +/- 18.03 t ha(-1) yr(-1)) was significantly higher than on the terraced series. SOC and total N inventories showed similar patterns to the Cs-137 inventory. Such results confirm that Cs-137 can help to trace SOC and total N dynamics on sloping farmland in this area.

KeywordTillage Erosion Water Erosion Cs-137 Soc Total n The Wenchuan Earthquake
WOS HeadingsScience & Technology ; Physical Sciences ; Life Sciences & Biomedicine
DOI10.1016/j.catena.2017.03.018
WOS Subject ExtendedGeology ; Agriculture ; Water Resources
Indexed BySCI
WOS KeywordESTIMATING EROSION RATES ; AMERICAN GREAT-PLAINS ; TILLAGE EROSION ; ORGANIC-CARBON ; WATER EROSION ; CULTIVATED LAND ; CESIUM-137 MEASUREMENTS ; INTENSIVE TILLAGE ; TRACING DYNAMICS ; DEBRIS FLOWS
Language英语
Quartile2区
TOP
WOS SubjectGeosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS IDWOS:000404704000018
Funding OrganizationOpen Fund of Ecological Security and Protection Key Laboratory of Sichuan Province, Mianyang Normal University(ESP201303) ; National Natural Science Foundation of China(41401313) ; Applied Basic Research Project of Sichuan Province(2014JY0067)
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18659
Collection山地灾害与地表过程重点实验室
山地表生过程与生态调控重点实验室
Affiliation1.Mianyang Normal Univ, Ecol Secur & Protect Key Lab Sichuan Prov, Mianyang 621000, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Su, Zhengan,Li, Yan,Zhang, Jianhui,et al. Spatial variation in soil, SOC, and total N redistribution on affected and non affected slope terraces due to the 8.0 Wenchuan Earthquake in 2008 by using Cs-137 technique[J]. CATENA,2017,155:191-199.
APA Su, Zhengan.,Li, Yan.,Zhang, Jianhui.,Xiong, Donghong.,Dong, Yifan.,...&Yang, Dan.(2017).Spatial variation in soil, SOC, and total N redistribution on affected and non affected slope terraces due to the 8.0 Wenchuan Earthquake in 2008 by using Cs-137 technique.CATENA,155,191-199.
MLA Su, Zhengan,et al."Spatial variation in soil, SOC, and total N redistribution on affected and non affected slope terraces due to the 8.0 Wenchuan Earthquake in 2008 by using Cs-137 technique".CATENA 155(2017):191-199.
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