Dynamics of soil chemical properties in shifting cultivation systems in the tropics: a meta‐analysis

• DOI: 10.1111/sum.12224
• Publication Date: 2015-11-26T02:12:41Z
• Authors: A. A. Ribeiro Filho; C. Adams; S. Manfredini; R. Aguilar; W. A. Neves
• Keywords: Soil carbon; Cation-exchange capacity; Shifting cultivation

Abstract The forest cultivation system (slash‐and‐burn or shifting cultivation) has contributed to the transformation of social systems since early Neolithic period. Despite being considered by conservationists and public policymakers as a low productivity that generates environmental degradation contributes maintenance rural poverty, ( SCS ) is declared practice highly ecologically economically efficient. Such dichotomy opinions consequence disparate results studies assessing effects on soil properties rainforests throughout last three decades. To circumvent this apparent inconsistency, we used systematic quantitative review method (meta‐analysis), with objective integrating synthesizing data published in literature assess overall chemical properties. Four variables traditionally assessed primary were chosen for meta‐analyses: pH , cation exchange capacity CEC ), total carbon (Total C) nitrogen N). Our show values increase under conditions, while Total N C content are significantly reduced . No significant impacts observed support position from researchers who argue sustainability highlight importance evaluating soil/vegetation complex. Also, our indicate scenarios better conserved more readily recoverable, provided there rather longer fallow period than been employed.