Distribution of soil organic carbon impacted by land-use changes in a hilly watershed of the Loess Plateau, China.

Check dam Land-use change Soil organic carbon Topography

Journal

The Science of the total environment
ISSN: 1879-1026
Titre abrégé: Sci Total Environ
Pays: Netherlands
ID NLM: 0330500

Informations de publication

Date de publication:
20 Feb 2019
Historique:
received: 23 06 2018
revised: 29 09 2018
accepted: 12 10 2018
pubmed: 28 10 2018
medline: 28 10 2018
entrez: 28 10 2018
Statut: ppublish

Résumé

Vegetation restoration, terrace and check dam construction are the major measures for soil and water conservation on the Loess Plateau. These effective measures of stabilizing soils have significant impacts on soil organic carbon (SOC) distribution. However, following ecological construction, whether the hilly watershed acts as a source or a sink of soil carbon is still unknown. To understand the impact of land-use changes combined with check dam construction on SOC distribution, 1060 soil samples were collected from a 100 cm soil profile across a watershed on the Loess Plateau. The soils in the 0-20 cm layer had a higher SOC concentration than those of the 20-40, 40-60, 60-80 and 80-100 cm layers. Forestland, shrubland and terrace had significant higher SOC concentrations in the 0-20 cm soil layer than that of sloping cropland and dammed farmland (p < 0.05). SOC densities (0-100 cm) in terrace, forestland, shrubland, grassland, sloping cropland and dammed farmland were 12.09, 11.99, 11.89, 11.77, 11.41 and 10.11 kg m

Identifiants

DOI: 10.1016/j.scitotenv.2018.10.172 PMID: 30368180
pubmed: 30368180
pii: S0048-9697(18)34055-5
doi: 10.1016/j.scitotenv.2018.10.172
pii:
doi:

Types de publication

Journal Article

Langues

eng

Pagination

505-512

Informations de copyright

Copyright © 2018 Elsevier B.V. All rights reserved.

Auteurs

Peng Shi (P)

State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China; Key Laboratory of National Forestry Administration on Ecological Hydrology and Disaster Prevention in Arid Regions, China.

Yan Zhang (Y)

College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China.

Peng Li (P)

State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China; Key Laboratory of National Forestry Administration on Ecological Hydrology and Disaster Prevention in Arid Regions, China. Electronic address: lipeng74@163.com.

Zhanbin Li (Z)

State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China.

Kunxia Yu (K)

State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China.

Zongping Ren (Z)

State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China; Key Laboratory of National Forestry Administration on Ecological Hydrology and Disaster Prevention in Arid Regions, China.

Guoce Xu (G)

State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China.

Shengdong Cheng (S)

State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China.

Feichao Wang (F)

State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China.

Yongyong Ma (Y)

State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, China.

Classifications MeSH