摘要
通过对白桦+红松块状混交试验林与红松纯林土壤理化性质对比分析,结果表明:白桦+红松人工针阔混交林能有效改善土壤化学性质,降低土壤酸性,提高土壤的有机质含量及土壤肥力,并能大幅增强水源涵养功能;在森林生物量及碳汇方面,白桦+红松混交林类型优于红松纯林。营建白桦+红松人工针阔混交林不仅能有效地解决红松纯林地力衰退问题,又能提升森林生态系统服务功能。
By comparing the physical&chemical properties of the mixed forest of Betula platyphylla+Pinus koraiensis mixture by group&Pinus koraiensis pure forest,result shows that the artificial mixed forest of Betula platyphylla+Pinus koraiensis can effectively improve soil chemical properties,reduce soil acidity and improve soil.The organic matter content&soil fertility can significantly enhance the water conservation function;in the forest biomass&carbon sink,the mixed forest type of Betula platyphylla+Pinus koraiensis is optimal than that of the pure forest of Pinus koraiensis.The construction of Betula platyphylla+Pinus koraiensis artificial coniferous and broad-leaved mixed forest can not only effectively solve the problem of soil fertility decline of Pinus koraiensis,but also enhance the service function of forest ecosystem.
作者
陈杰
Chen Jie(Liaoning Forest Management Research Institute,Dandong 118002,China)
出处
《防护林科技》
2019年第9期27-28,36,共3页
Protection Forest Science and Technology
关键词
混交林
土壤理化性质
生态效益
mixed forest
soil physical and chemical properties
ecological benefits
