黄塘小集水区生态经济型防护林林种布局研究  

Studies of Distribution Pattern of Flora of Ecological and Economic Type of Protecting Forest Stands in the Huangtang Small Watershed.

作　　者：袁正科[1] 周刚[1] 

机构地区：[1]湖南省林业科学院

出　　处：《生态学杂志》1998年第6期7-13,共7页Chinese Journal of Ecology

基　　金：国家"八五"重点科技攻关项目

摘　　要：１黄塘小集水区概况１．１社会经济概况集水区总面积３２７ｋｍ２，有村民小组１１个，村民２５０户，人口１０１８人，人均耕地００８７ｈａ，其中水田００６７ｈａ。区内共有劳动力４８６人，劳动力资源丰富，每年农闲时期外出打工的人数多达３００人左右，有９４...Quality background data of 98 subcompartments were obtained by investigation in the Huangtang small watershed in the hilly areas of the centre of Hunan. The main factors affecting water and soil loss in the subcompartments were defined with the Quantized Theory (I) .According to these factors, five ecological environment types were gained by means of the blugred assemblement.The distribution pattern of flora of the ecological and economic type of protecting forest stand was analysed on the basis of the ecological background values of each type.

关 键 词：生态防护林 经济型 林种布局 

分 类 号：S727.201[农业科学—林木遗传育种]