白桦+红松人工混交林生态效益的研究  

Ecological Benefits of Artificial Mixed Forest of Betula platyphylla + Pinus koraiensis

作　　者：陈杰 Chen Jie(Liaoning Forest Management Research Institute,Dandong 118002,China)

机构地区：[1]辽宁省森林经营研究所

出　　处：《防护林科技》2019年第9期27-28,36,共3页Protection Forest Science and Technology

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.

关 键 词：混交林 土壤理化性质 生态效益 

分 类 号：S725.2[农业科学—林木遗传育种]