摘要
以广元市水土流失定位观测站内的3个不同植被恢复模式为研究对象,通过野外调查与室内实验分析,测定了湿地松纯林,刺槐纯林及湿地松刺槐混交林的土壤有机质与P素含量。结果表明：（1）混交林的土壤结构明显好于湿地松与刺槐纯林;（2）混交林中有机质含量高于刺槐与湿地松纯林,3个林地的土壤有机质多集中在土壤上层,并随着土壤深度的增加而减少。
The physical and chemical properties,soil orgnic matter and phosphorus in three patterns of vegetation rehabilitation were studied. Tested through in the open country investigation and the room-analyzes, has determined organic matter of soil in Pinus ,liottii Engelm, Robinia pseudoacacia and mixed stands of Pinus elliottii and Robinia pseudoacacia. The result indicated that soil structure of in Pinus eliottii Engelm is obvious good. The organic matter cotent of the mixed forest is higher than the Pinus eliottii Engelm and Robinia pseudoacacia in three different patterns ; The soil total phosphorus and available phosphorus are sorted descendingly as follow.. Robinia pseudoacacia 〉 mixed stands of Pinus elliottii and Robinia pseudoacacia 〉 Pinus elliottii.
出处
《水土保持研究》
CSCD
北大核心
2007年第6期208-211,共4页
Research of Soil and Water Conservation
基金
国家“十五”重点科技攻关计划“四川盆周低山区水土流失综合治理技术与示范”子课题(2001BA606A-06-3)
四川省重点学科森林培育学建设项目
关键词
森林土壤
有机质
磷
forest soil
organic matter
phosphorus
