红壤丘陵区不同植被恢复模式土壤理化性质相关分析  

PHYSICAL AND CHEMICAL PROPERTIES OF SOILS UNDER DIFFERENT VEGETATION RESTORATION MODELS IN RED SOIL HILLY REGION

作　　者：王昭艳[1] 左长清[1] 曹文洪[1] 杨洁[2] 徐永年[1] 秦伟[1] 张京凤[1] 

机构地区：[1]中国水利水电科学研究院,北京100048 [2]江西省水土保持科学研究所,南昌330029

出　　处：《土壤学报》2011年第4期715-724,共10页Acta Pedologica Sinica

基　　金：国家"十一五"科技支撑项目(2009BADC6B06);水利公益性行业科研专项经费项目(200901047;200901049);中国水利水电科学研究院青年科学基金项目(泥集1008)资助

摘　　要：南方红壤丘陵区土壤侵蚀严重,成为我国生态系统退化地带之一,为了探讨植被恢复模式与土壤理化性质改良关系,合理利用丘陵区土地,本文研究了草本、果树、果树+草、果树+草+农作物和果树+农作物等不同植被恢复模式对土壤物理及化学性质的影响,并运用灰色关联分析方法对不同恢复模式的土壤理化性质进行相关分析。研究结果表明:不同植被恢复模式土壤理化性质影响差异显著,百喜草全园覆盖的草本模式改良土壤理化性质的综合效应最佳,然后依次是果树+农作物、果树+草+农作物、果树+草。横坡套种土壤改良效应明显优于纵坡套种,全区覆盖处理优于带状覆盖处理。南方丘陵区侵蚀劣地植被恢复,可以优先考虑恢复百喜草的草本模式和果树+农作物模式,尤其是,果树+横坡套种农作物模式适宜在南方丘陵区大力推广。In the red-soil hilly region, South China, severe soil erosion has made the region one of the zones of degraded ecosystem in China. To explore relationships between vegetation restoration models and amelioration of soil physical and chemical properties, and rational utilization of the land resources in the hilly region, effects of vegetation restoration models using different vegetations, such as grasses, orchard, fruit trees ＋ grasses, fruit trees ＋ grasses ＆ crops and fruit trees ＋ crops, on soil physical and chemical properties were analyzed with the gray incidence analysis method. Resuits show that the effects on soil properties varied from vegetation to vegetation and from model to model. The model that had Paspalum notatum flugge covering the whole plot was the optimal in integrated effect, and followed by the models that had fruit trees ＋ crops, fruit trees ＋ grasses ＆ crops and fruit trees ＋ grasses. And the models with vegetation interplanted horizontally were better than those vertically, and overall coverage than ribbon coverage. In restoring vegetation in severely eroded hilly areas, South China, it is advisable to take the model of overall coverage of Paspalum notatum flugge and the model of horizontal interplantation of fruit trees and crops into priority consideration for extension in the hilly regions. South China.

关 键 词：土壤理化性质 植被恢复模式 红壤丘陵区 

分 类 号：S153[农业科学—土壤学]