红壤丘陵区不同生态恢复模式的土壤生态效应  

Ecological Effect of Soil Under Different Recovery Modes in Red Soil Hilly Region

作　　者：熊平生[1] 王鹏[1] 

机构地区：[1]衡阳师范学院资源环境与旅游管理系,湖南衡阳421002

出　　处：《水土保持通报》2014年第2期30-33,共4页Bulletin of Soil and Water Conservation

基　　金：衡阳师范学院人才引进启动项目"我国南方红土形成机理及其发育时期"(12B41);国家自然科学基金项目41171076)

摘　　要：通过对研究样地土壤样品的采集和测试,对比分析了不同恢复模式土壤物理性质、土壤有效元素和微生物含量,对红壤丘陵区不同恢复模式的土壤生态效应进行了研究。结果表明,人工恢复地和封禁恢复地的土壤毛管孔隙度、非毛管孔隙度、土壤微生物总数量与对照裸地相比均有明显增加,人工恢复地土壤有效营养元素含量高于原始裸地和封禁地。人工恢复地的脐橙模式的土壤饱和持水量、有效水含量和土壤有机质含量最高,土壤微生物总数量次之。综合分析认为,脐橙模式对改良土壤的效果最佳,又具有较好的经济效益,值得推广;而封禁模式对改良土壤的效果较好,但缺乏经济效益。By collecting soil samples from the red-soil hilly region in the south of Jiangxi Province and comparatively analyzing soil physical properties,soil effective elements and the microbial content under different recovery modes,ecological effects of soil under the recovery modes were investigated.Results show that soil capillary porosity,noncapillary porosity and total microbial content of artificial restoration land and prohibited land significantly increased as compared with bare land.Moreover,soil available nutrient content of artificial restoration land was higher than that of bare land and prohibited zone.The landuse mode of planting orange trees has the highest contents of soil saturated water,available water and soil organic matter,as well as relatively higher content of soil total microbial.Based on the comprehensive analysis,the landuse mode of planting orange trees is not only optimal in improving soil ecological effect,but also has the better economic benefit.The prohibition mode also has a fair effect on soil improvement,but is lack of economic benefit.

关 键 词：红壤丘陵区 生态恢复模式 土壤生态效应 

分 类 号：S714[农业科学—林学] X171.4[环境科学与工程—环境科学]