000216299 001__ 216299
000216299 005__ 20180913063557.0
000216299 0247_ $$2doi$$a10.1111/avsc.12202
000216299 022__ $$a1402-2001
000216299 02470 $$2ISI$$a000368074600007
000216299 037__ $$aARTICLE
000216299 245__ $$aLinking historical land use to present vegetation and soil characteristics under slash-and-burn cultivation in Madagascar
000216299 260__ $$aHoboken$$bWiley-Blackwell$$c2016
000216299 269__ $$a2016
000216299 300__ $$a13
000216299 336__ $$aJournal Articles
000216299 520__ $$aAim: In this paper, we link historical land use of cultivated parcels formerly slashed and burnt, with current secondary vegetation and soil characteristics, in the region of evergreen rain forest in Madagascar. Aim is to understand the legacy effect of former cultivation practices in order to optimize slash-and-burn cultivation. Location: Forest corridor of Fianarantsoa, southeast Madagascar. Methods: We examined three study sites to capture the ecological range in the forest corridor of Fianarantsoa. At each site, we selected formerly hand-cultivated parcels since first forest clearing so as to represent up to four classes of age of abandonment, encompassing forest fallow periods after cultivation of 0-5, 6-10, 11-20 and 21-30 yrs. These parcels served for selection of 50 plots. Interviews were conducted with each farmer to document former cultivation practices of the parcels, and from these, land-use metrics were calculated. Vegetation was surveyed in the plots and soil samples were taken and analysed for chemical and physical properties of the organo-mineral layer (horizon A). Results: We found that soil properties, such as pH, have higher values with an increasing number of cultivation cycles and duration of cultivation, and that this trend is inversely related to exchangeable P. C/N ratio is correlated to age of abandonment, and inversely related to soil N content. With increasing age of abandonment, species richness and diversity increase due mainly to an increase in ligneous species. The number of herbaceous and fern species increases with duration of cultivation and number of cultivation cycles. Conclusion: Historical land use has had a lasting effect on vegetation and even longer-term effect on soils. Different land-use variables explain soil and vegetation characteristics of the current secondary forest. The ability of soils to recover P appears unrelated to abandonment duration, suggesting that longer periods of time are required to recover P fertility, or that secondary vegetation is shifting the pool of nutrients into biomass. Our results point to the need for a management regime that would maintain both scattered trees and patches of a grass layer, since this might be key to promoting both biodiversity and soil restoration.
000216299 6531_ $$aEvergreen rain forest
000216299 6531_ $$aMadagascar
000216299 6531_ $$aSecondary vegetation
000216299 6531_ $$aShifting cultivation
000216299 6531_ $$aSoil fertility
000216299 700__ $$aRandrianarison, Andry$$uEcole Polytech Fed Lausanne, Sch Architecture Civil & Environm Engn, Lab Syst Ecol ECOS, Stn 2, CH-1015 Lausanne, Switzerland
000216299 700__ $$aSchlaepfer, Rodolphe$$uEcole Polytech Fed Lausanne, Sch Architecture Civil & Environm Engn, Lab Syst Ecol ECOS, Stn 2, CH-1015 Lausanne, Switzerland
000216299 700__ $$0246025$$aMills, Robert$$g221827$$uEcole Polytech Fed Lausanne, Sch Architecture Civil & Environm Engn, Lab Syst Ecol ECOS, Stn 2, CH-1015 Lausanne, Switzerland
000216299 700__ $$aHerve, Dominique$$uUniv Montpellier 3, UMR GRED 220, Inst Rech Dev, F-34394 Montpellier 5, France
000216299 700__ $$aRazanaka, Samuel$$uCNRE, Antananarivo 101, Madagascar
000216299 700__ $$aRakotoarimanana, Vonjison$$uUniv Antananarivo, Dept Biol & Ecol Vegetale, Antananarivo 101, Madagascar
000216299 700__ $$aCarriere, Stephanie M.$$uUniv Montpellier 3, UMR GRED 220, Inst Rech Dev, F-34394 Montpellier 5, France
000216299 700__ $$0241312$$aButtler, Alexandre$$g133834$$uEcole Polytech Fed Lausanne, Sch Architecture Civil & Environm Engn, Lab Syst Ecol ECOS, Stn 2, CH-1015 Lausanne, Switzerland
000216299 773__ $$j19$$k1$$q40-52$$tApplied Vegetation Science
000216299 909C0 $$0252129$$pECOS$$xU11021
000216299 909CO $$ooai:infoscience.tind.io:216299$$particle$$pENAC
000216299 917Z8 $$x133834
000216299 937__ $$aEPFL-ARTICLE-216299
000216299 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000216299 980__ $$aARTICLE