摘要
四川盆地紫色丘陵区的水土保持林低效化问题已较严重。研究了其土壤方面的成因。通过对土壤构造、土壤肥力特性、土壤结构性评价等研究，指出该区人工林地的土壤构造发育不正常，土壤腐殖质胶体积累量低。土壤结构质量差等林地土壤退化是土壤水土保持功能降低的主要原因。根据研究的初步结果，提出了相应的对策建议。
Low efficiency of water-conservation forest had been a serious problem in purple hilly areas of Sichuanbasin. In this work, the soil genesis had been conducted. The conclusion that abnormal soil tectonics, low accumulatingsoil humus colloid and low soil structural quality were the main cause of debasing of soil water-conservation function, as well as some countermeasures, had been proposed after the study on soil tectonics, soil fertilizer features and assessment of soil structure in purple hilly region.
出处
《山地学报》
CSCD
北大核心
2006年第B10期11-15,共5页
Mountain Research
基金
中国科学院盐亭站基金和国家杰出青年人才基金（40025103）资助,致谢：研究工作得到本所崔鹏,中国科学院盐亭紫色土农业生态站朱波、刘刚才、罗贵生等,以及中国科学院贡嘎山高山生态站的程根伟、李同阳、罗辑、李伟、陈彬如等的大力支持.
关键词
水土保持
人工林
土壤特性
土地退化
紫色丘陵区
water conservation
planted forest
soil features
desertification
purple hilly region
