Agro-pedological Assessment of the Traditional Yuanyang Rice Terraces of Yunnan Province, China  

云南省元阳县传统水稻梯田的农业土壤评价(英文)

作　　者：Gilles COLINET Keiko KOULOS 吴伯志[2] 李永梅[2] Daniel LACROIX1 苏友波[2] Jean CHAPELLE Michael A. FULLEN Trevor HOCKING Laurent BOCK 

机构地区：[1]列日大学让布鲁农业与生物技术学院 [2]云南农业大学,昆明650201 [3]伍尔弗汉普顿大学

出　　处：《Journal of Resources and Ecology》2011年第4期353-361,共9页资源与生态学报（英文版）

基　　金：supported by the National Basic Research Program (No.2011CB100400)

摘　　要：As a contribution to a long-term evaluation of the sustainability of agro-ecosystems in the Yuanyang rice terraces, this paper reviews the bio-physical environment of the terraced landscape in a small catchment around Qingkou village and assesses soil fertility in the village crop growing area. A soil- landscape organization pattern was developed using a geomorphopedological approach. Anthropogenic, climatic and topographic factors were identified as the main soil forming factors. Soil capability and associated edaphic constraints were assessed and the main soil types were identified and classified using FAO protocols. Spatial patterns of soil fertility appear quite homogeneous. Soils are acid and cation exchange capacity and nutrient reserves are generally low. The agro-ecosystem has largely been developed by the Hani population. This agro-ecosystem has succeeded in maintaining a relatively dynamic nutrient circulation system. Current research is focusing on： （i） the evaluation of the representativeness of the studied area compared to the whole terraced system in the Yuanyang terraced landscape; （ii） measurements of nutrients flows at the field scale; （iii） the effects of soil properties on crop yields; and （iv） up-scaling field levels results to larger spatial units.作为元阳水稻梯田农业生态系统可持续性评价的一部分,本文调查了箐口流域梯地的自然生物环境,评价了农业土壤的土壤肥力,采用地质—地貌—土壤信息相结合的方法建立了土壤—景观之间的组合模式。研究确定了人为、气候、地形因素为影响土壤形成的主要因素,评价了土壤潜在生产力以及相关的限制因子,并根据FAO体系,确定并划分了主要的土壤类型。研究结果表明:土壤肥力的空间分布相当均一;土壤属酸性,阳离子代换量和养分储量总体较低;农业生态系统在较大程度上受哈尼群众人为活动的影响,成功维持了相对活跃的养分循环系统。目前的研究集中在:(1) 本研究区域在整个哈尼梯田系统中的代表性评价;(2) 田间水平上的养分循环研究;(3) 土壤特性对作物产量的影响;(4) 将田间水平的研究结果应用于更大的空间单元。

关 键 词：terraced paddy fields geomorphopedological approach soil fertility diagnosis Yuanyang rice terraces sustainable agriculture 

分 类 号：S159.2[农业科学—土壤学]