发挥良种在云南林业产业化中的作用

云南属我国四大林区之一，林业在经济发展中占有主导地位，林业产业化的关键在于可持续的后备森林资源，而后备资源培育的质量和数量取决于选育和应用良种的深度和广度，从国外林业发展的经验可知，持续选用良种已在生产中发挥了巨大作用，首先应转变人们依靠自然更新，随便采种的观念，重视选育和采用良种，集约经营，国家应加强科技投入，试验示范，以点带面，科技人员应深入实际，调查研究，解决当地主要树种的良种和培育问题，采

Importance of Utilizing Improved Variety in Forestry Industrialization of Yunnan

Yunnan is a mountainous and forestry province,and one of the biggest four forest regions in China,where forestry plays an important role in local economic development.The quantity and quality of sustainable forest reserve resources decide the key of forestry industrialization,which depends on the level of forest tree improvement.The forest tree improvement brings a huge benefit on forestry industrialization,cultivation and processing in many countries.Firstly, people'sFQ] old planting thought of relying on natural regeneration,nonselective seed collecting and raising seedlings,and extensive tending must be changed as the new one of breeding and using improved seeds or clones to grow seedlings,intensive management by training and mass media.Secondly,governments have to invest special fund to set up experiment and demonstration afforestation station in breeding and utilization of improved variety.Thirdly,experts in forest tree improvement must make a thorough investigation and study on breed quality varieties rapidly to fit local reality of forestry development by conventional breeding techniques and advanced biotechnology.Meanwhile,in order to keep the genetic diversity in planting and resource cultivation,multiple superior families or clones should be used to planting.It can be realized by the sustainable development of reserve resources in forestry industrialization to utilize improved seedlings,relevant planting methods and tending measures constantly.