三江源地区糙皮桦采种与播种育苗技术要点  

The Technical Essentials of Sowing and Seedling Cultivation of Betula Utilis in the Source of Three Rivers

作　　者：丁启含[1] 韩富忠 樊国有 

机构地区：[1]黄南州林业技术推广站,青海黄南811300 [2]黄南州麦秀林场,青海黄南811300

出　　处：《安徽农学通报》2010年第23期137-137,171,共2页Anhui Agricultural Science Bulletin

基　　金：三江源地区糙皮桦育苗技术研究课题

摘　　要：糙皮桦是一种阳性的阔叶树种,天然林主要形成混交林;较针叶林抗火、抗病虫害的能力强;海拔分布高,最高可达4000m,尤其适宜在三江源地区造林;因此掌握其播种育苗技术,包括采种、种子处理、圃地选择、整地作床、播种与苗期管理技术,为今后营造混交林,提高森林的防护功能,促进森林健康,改善三江源区生态环境具有很重要的生态意义。The Betula utilis is a intolerant tree specie and forms broad--leaved mixed forest in natural condition, owning stronger resistant ability to forest fires and insect pests than coniferous forest. The Betula utilis distributes from 2500 4000m, which is very suitable specie for forestation in the source of three rivers. It is very essential to know well about the sowing and seedling cultivation techniques of Betula utilis for keeping the health of forest, including seed collection, seed process, garden place choice, seedbed preparation, the managerial technique of sowing seeds and seedling stage etc. This article introduces the details of Betula ntilis planting techniques and will make contributions to increase the protection ability of mixed forest and improve the ecology and economy conditions of the source of three rivers.

关 键 词：三江源 糙皮桦 采种育苗 技术要点 

分 类 号：S792.15[农业科学—林木遗传育种]