IEECAS OpenIR  > 生态环境研究室
Soil pH changes in a small catchment on the Chinese Loess Plateau after long-term vegetation rehabilitation
Jin, Zhao1,2,7; Luo, Da1,3; Yu, Yunlong1,4; Yang, Siqi1,6; Zhang, Jing5,7; Cao, Guofan5,7
Corresponding AuthorJin, Zhao(jinzhao@ieecas.cn)
2022-02-01
Source PublicationECOLOGICAL ENGINEERING
ISSN0925-8574
Volume175Pages:10
AbstractSoil pH is a fundamental parameter of soil chemical properties, and changes in soil pH (CIPs) alter hydrogeochemical processes in the Earth's critical zone. Afforestation has long been reported to change surface soil pH at the site scale or regional scale, while few studies have discussed the effects of afforestation and microtopography on soil pH at the catchment scale. We hypothesize that both afforestation and microtopography affect surface soil pH in a catchment. To test this hypothesis, two neighboring catchments in which one catchment was restored with natural vegetation and the other was afforested in 1954 were selected and surface soils were sampled. The soil pH, soil water content (SWC), total nitrogen (TN), soil organic and inorganic carbon (SOC and SIC) were analyzed for those soil samples. Moreover, trees coverage, LAI and grass cover were investigated in the two catchments. The results showed that over 60 years of afforestation in the catchment reduced the soil pH values at the depth of 0-80 cm in only the topography of the downhill gully, and the CIPs ranged from -0.02 to -0.15. In the topography of the upper hillslope, afforestation showed no significant impacts on soil pH. The reduction in soil pH in the gullies of the forestland catchment had a significant linear and negative relationship with TN and SOC. Moreover, microtopography showed significant impacts on soil pH. In the forestland catchment, the downhill gully showed lower soil pH values than those in the upper hillslope, while the opposite difference was detected in the grassland catchment. The high coverage of vegetation in the forestland gully and frequent gravity erosion in the grassland gully could explain the contrasting trends of soil pH differences between the two landforms in the catchment. The results of this study deepen our understanding of the effects of afforestation and catchment topography on soil pH and the related critical zone processes.
KeywordAfforestation Catchment topography Hydrogeochemical processes Paired catchments
DOI10.1016/j.ecoleng.2021.106503
WOS KeywordEARTHS CRITICAL ZONE ; CARBON ; TOPOGRAPHY ; RESPONSES ; REGION
Indexed BySCI ; SCI
Language英语
Funding ProjectStrategic Priority Research Program of Chinese Academy of Sciences[XDB40000000] ; National Natural Science Foundation of China[41790444] ; National Key Research and Development Program[2018YFC1504701]
WOS Research AreaEnvironmental Sciences & Ecology ; Engineering
Funding OrganizationStrategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Key Research and Development Program
WOS SubjectEcology ; Engineering, Environmental ; Environmental Sciences
WOS IDWOS:000728757700008
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/17333
Collection生态环境研究室
第四纪科学与全球变化卓越创新中心
Corresponding AuthorJin, Zhao
Affiliation1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
2.Chinese Acad Sci, CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Hangzhou Dianzi Univ, Chinese Acad Sci & Educ Evaluat, Hangzhou 310018, Peoples R China
5.Xian Inst Innovat Earth Environm Res, Xian 710061, Peoples R China
6.Beijing Normal Univ, Interdisciplinary Res Ctr Earth Sci Frontier IRCE, Beijing 100875, Peoples R China
7.Natl Observat & Res Stn Earth Crit Zone Loess Pla, Xian 710061, Peoples R China
Recommended Citation
GB/T 7714
Jin, Zhao,Luo, Da,Yu, Yunlong,et al. Soil pH changes in a small catchment on the Chinese Loess Plateau after long-term vegetation rehabilitation[J]. ECOLOGICAL ENGINEERING,2022,175:10.
APA Jin, Zhao,Luo, Da,Yu, Yunlong,Yang, Siqi,Zhang, Jing,&Cao, Guofan.(2022).Soil pH changes in a small catchment on the Chinese Loess Plateau after long-term vegetation rehabilitation.ECOLOGICAL ENGINEERING,175,10.
MLA Jin, Zhao,et al."Soil pH changes in a small catchment on the Chinese Loess Plateau after long-term vegetation rehabilitation".ECOLOGICAL ENGINEERING 175(2022):10.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Jin, Zhao]'s Articles
[Luo, Da]'s Articles
[Yu, Yunlong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Jin, Zhao]'s Articles
[Luo, Da]'s Articles
[Yu, Yunlong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Jin, Zhao]'s Articles
[Luo, Da]'s Articles
[Yu, Yunlong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.