珠江三角洲丘陵赤红壤开发中的问题与可持续利用  

Sustainable Utilization of Hilly Latosolic Red Soil in the Pearl River Delta

作　　者：杨恬[1] 朱照宇[1] 

机构地区：[1]中国科学院广州地球化学研究所边缘海地质重点实验室

出　　处：《热带地理》2007年第5期395-399,404,共6页Tropical Geography

基　　金：中国科学院知识创新重要方向项目(KZCX3-SW-152);国家自然科学基金重点项目(40331009);广东省自然科学基金团队项目(04201163);国家重大基础研究前期研究专项(2003CCA00100)资助

摘　　要：丘陵赤红壤是珠江三角洲社会经济发展的重要土壤资源,但是长期以来的人为干扰和不合理利用使土壤性能退化,生态环境恶化,严重影响了丘陵赤红壤的可持续利用。文中总结了丘陵赤红壤的基本特性及利用现状,探讨其生态环境重建及实现可持续利用的途径。认为丘陵赤红壤面临的主要问题有:水土流失、养分贫瘠、表土砂质化、土壤结构退化、土壤水分性能退化、酸雨和重金属造成的污染等。指出实现其可持续利用的途径主要有:加强水土流失的治理;培育土壤肥力,调节土壤水分;增加生物多样性,建立良好的生态结构;防治"三废"污染,使用清洁能源;发展绿色农业与观光农业。Abstract： Hilly latosolic red soil is one of the most important soil resources in the Pearl River Delta, but for a long time, some human-induced disturbance and improper utilization of the resource have caused soil degeneration and environment deterioration, which restrain seriously sustainable utilization of the soil. In this paper, the basic characteristics and utilization conditions of hilly latosolic red soil are summarized, and the ways of ecological reconstruction and the strategies of sustainable utilization of the soil are discussed. It is thought that the main problems of exploitation of the soil are as follows ： soil erosion, poor organic matter, sandification of the surface layer, degradation of soil structure and capabilities of water conservation, and pollution of acid rain and heavy metals. Some suggestions for the sustainable utilization on the hilly latosolic red soil are put forward： control soil erosion, raise soil fertility, enhance the moisture retaining ability of the soil, increase biodiversity, construct reasonable ecological structure, control the pollution, use clean energy, and develop green agriculture and agritourism.

关 键 词：珠江三角洲 丘陵赤红壤 可持续利用 

分 类 号：X43[环境科学与工程—灾害防治] F326.299[经济管理—产业经济]