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Agriculture, ecosystems and environment: Long-term soil carbon loss and accumulation in a catchment following the conversion of forest to arable land in northern Laos

agriculture is encroaching rapidly on tropical mountain due to demographic and economic pressure that accelerate deforestation. such disruption cause soil loss along catchment slopes, landslide and sediment transfer to lake and impoundments resulting in widespread land degradation, soil organic carbon depletion linked to erosion is of major importance in agriculture

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Data Resource Preview - Agriculture, ecosystems and environment: Long-term soil carbon loss and accumulation in a catchment following the conversion of forest to arable land in northern Laos

Additional Info

Field Value
Document type Advocacy and promotional materials
Language of document
  • English
Topics
  • Agriculture
  • Ecosystems
  • Environment and natural resources
Geographic area (spatial range)
  • Lao People's Democratic Republic
Province(s)
  • Luangprabang
Copyright Unclear copyright
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© 2013 Elsevier B.V

Version / Edition 1
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Corresponding author. Tel.: +33 1 44 27 72 82; fax: +33 1 44 27 41 64. E-mail address: sylvain.huon@upmc.fr (S. Huon). et al., 2002; Wezel et al., 2002 ). Moreover, eroded carbon, once in the river network and subject to mineralization, may contribute to greenhouse gas emissions ( Lal, 2003 ). Soil erosion studies con- ducted from plot to hill slope scales are frequently used to assess soil organic carbon detachment and transport by overland flow ( e.g. , Bellanger et al., 2004 ) but it remains difficult to upscale these results to the catchment level because they are often subject to threshold effects ( Lugo and Brown, 1993; Turkelboom et al., 2008 ), involve different processes ( e.g. , Poesen et al., 1996 ) and do not account for deposition along slopes and valley bottoms ( Chaplot and Poesen, 2012 ). The catchment unit appears to be an appropriate scale because it integrates topography and other land characteris- tics as well as how cultivation responds to them. Moreover, this unit is often repeated in the landscape and may be used for out scaling. In Southeast Asia smallholders who practice shifting cultivation clear the forest predominantly on sloping land. Although slash-and-burn 0167-8809/$ – see front matter © 2013 Elsevier B.V. All rights reserved. http://dx.doi.org/10.1016/j.agee.2013.02.007

Co-author (individual) Sylvain Huon a , ∗ , Anneke de Rouw b , Philippe Bonté c , Henri Robain b , Christian Valentin b , Irène Lefèvre c , Cyril Girardin a , Yann Le Troquer b , Pascal Podwojewski b , Oloth Sengtaheuanghoung d
Publication place SciVerse ScienceDirect
Publisher SciVerse ScienceDirect
Publication date 2013
Pagination 16
Date uploaded May 17, 2018, 08:59 (UTC)
Date modified June 7, 2018, 07:58 (UTC)