DengKimLiEtAl2019

Référence

Deng, L., Kim, D.-G., Li, M., Huang, C., Liu, Q., Cheng, M., Shangguan, Z. and Peng, C. (2019) Land-use changes driven by ‘Grain for Green’ program reduced carbon loss induced by soil erosion on the Loess Plateau of China. Global and Planetary Change, 177:101-115. (Scopus )

Résumé

Vegetation restoration on degraded lands has been encouraged worldwide due to its ecological services and function of controlling soil erosion and improving carbon (C) stocks in terrestrial ecosystems. Although the processes of runoff and sediment detachment and transport are well recognized, the effects of vegetation restoration on organic C loss through soil erosion are not fully understood within a given landscape. This study conducted a synthesis from 66 sites to evaluate the effects of vegetation restoration on annual C loss induced by soil erosion across the key areas of the ‘Grain for Green’ Program (GGP) in the Loess Plateau, China. The results showed that vegetation restoration has significantly reduced the annual C loss in sediment and from runoff. Since 2000, a total of 8.6 × 10 6 ha degraded land has been converted to forests, shrubs and grasslands under the GGP, which has reduced runoff by 1.5 × 10 9 m 3 and is associated with 7.3 × 10 3 Mg C; furthermore, lost sediment has reduced by 348.7 Tg, which is associated with 1.8 Tg C per year, across the Loess Plateau. In the zone with a mean annual precipitation (MAP) < 550 mm, the degraded lands that have been converted to grasslands and shrubs have reduced more soil and water losses than have the lands that have been converted to forests; additionally, in the zone with a MAP >550 mm, the degraded lands that have been converted to forests have less soil erosion than do the lands that have been converted to grasslands and shrubs. Moreover, C loss induced by soil erosion was mainly affected by plant cover, soil porosity, slope, land-use change, and rainfall intensity on the Loess Plateau. This study suggests that optimal vegetation restoration measures should be adopted based on local conditions to reduce C loss induced by soil erosion. © 2019 Elsevier B.V.

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@ARTICLE { DengKimLiEtAl2019,
    AUTHOR = { Deng, L. and Kim, D.-G. and Li, M. and Huang, C. and Liu, Q. and Cheng, M. and Shangguan, Z. and Peng, C. },
    TITLE = { Land-use changes driven by ‘Grain for Green’ program reduced carbon loss induced by soil erosion on the Loess Plateau of China },
    JOURNAL = { Global and Planetary Change },
    YEAR = { 2019 },
    VOLUME = { 177 },
    PAGES = { 101-115 },
    NOTE = { cited By 0 },
    ABSTRACT = { Vegetation restoration on degraded lands has been encouraged worldwide due to its ecological services and function of controlling soil erosion and improving carbon (C) stocks in terrestrial ecosystems. Although the processes of runoff and sediment detachment and transport are well recognized, the effects of vegetation restoration on organic C loss through soil erosion are not fully understood within a given landscape. This study conducted a synthesis from 66 sites to evaluate the effects of vegetation restoration on annual C loss induced by soil erosion across the key areas of the ‘Grain for Green’ Program (GGP) in the Loess Plateau, China. The results showed that vegetation restoration has significantly reduced the annual C loss in sediment and from runoff. Since 2000, a total of 8.6 × 10 6 ha degraded land has been converted to forests, shrubs and grasslands under the GGP, which has reduced runoff by 1.5 × 10 9 m 3 and is associated with 7.3 × 10 3 Mg C; furthermore, lost sediment has reduced by 348.7 Tg, which is associated with 1.8 Tg C per year, across the Loess Plateau. In the zone with a mean annual precipitation (MAP) < 550 mm, the degraded lands that have been converted to grasslands and shrubs have reduced more soil and water losses than have the lands that have been converted to forests; additionally, in the zone with a MAP >550 mm, the degraded lands that have been converted to forests have less soil erosion than do the lands that have been converted to grasslands and shrubs. Moreover, C loss induced by soil erosion was mainly affected by plant cover, soil porosity, slope, land-use change, and rainfall intensity on the Loess Plateau. This study suggests that optimal vegetation restoration measures should be adopted based on local conditions to reduce C loss induced by soil erosion. © 2019 Elsevier B.V. },
    AFFILIATION = { State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi 712100, China; Center of CEF/ESCER, Department of Biological Science, University of Quebec at Montreal, Montreal, H3C3P8, Canada; Wondo Genet College of Forestry and Natural Resources, Hawassa University, PO Box 128, Shashemene, Ethiopia; Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China; University of Chinese Academy of Sciences, Beijing, 100049, China; College of Horticulture and Forestry Sciences/Hubei Engineering Technology Research Center for Forestry Information, Huazhong Agricultural University, Wuhan, 430070, China; International Institute for Earth System Science, Nanjing University, Nanjing, Jiangsu 210023, China },
    AUTHOR_KEYWORDS = { Ecological restoration; Land-use change; Organic carbon loss; Runoff; Sediment },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1016/j.gloplacha.2019.03.017 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85063421976&doi=10.1016%2fj.gloplacha.2019.03.017&partnerID=40&md5=4538d55fc307ab1ea8c59b78a94f062c },
}

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