坡地赤红壤退化与生态环境重建  

The decline of latosolic red soil of slope land in Guangdong and the reconstruction of the ecology

作　　者：曾晓舵[1] 

机构地区：[1]广东省生态环境与土壤研究所,广东广州510650

出　　处：《生态环境》2003年第2期198-202,共5页Ecology and Environmnet

基　　金：广东省农业环境综合治理重点实验室资助项目

摘　　要：广东坡地赤红壤是广东农业生产的重要土壤资源,但是,坡地赤红壤长期以来存在着利用不当和退化问题,严重制约着其生产潜力的发挥。文章总结了坡地赤红壤的基本特性及退化状况,探讨了其生态环境重建的途径。认为坡地赤红壤之退化主要是生态退化、水土流失、物理退化和养分退化。指出坡地赤红壤之生态环境重建主要有如下几种途径:因地制宜,合理利用,恢复与重建土壤-植被生态系统;综合治理水土流失;增加有机质,改善土壤结构,提高土壤肥力;发挥地域优势,大力发展绿色农业,走农业产业化道路。Latosolic red soil of slope land is one kind of the most important soils for the agricultural development in Guangdong, China. But unfortunately, there have been some improper utilization and decline of the soil for a long time, seriously restraining the play of its production potentialities. This paper summarizes the basic characteristics and the decline status of the soil, and discusses the way to reconstruct the ecology. The paper suggests that the soil decline should be the ecological decline, physical decline, nutrient decline, and soil and water loss. Finally, the paper puts forward the strategy for the reconstruction of the ecology as follows: to use the soil properly and reconstruct the soil-vegetation ecosystem; to control soil and water loss comprehensively; to dress more organic fertilizer, improve soil structure and raise soil fertility; and to take the regional advantages to develop the green agriculture and realize agricultural industrialization.

关 键 词：坡地赤红壤 退化 生态环境 重建 农业生产 土壤资源 

分 类 号：X171.4[环境科学与工程—环境科学] S155.25[农业科学—土壤学]