摘要
云南黄家河流域的天然林面积为1854．93hm。，占该流域总面积的66．18％。依据2001—2003年10～12月共4次调查所获的样地资料和野外记录，按《云南植被》（1987）的植被分类原则，将黄家河流域的天然森林植被分为3个植被型。4个植被亚型和6个群系。其天然森林具一定的垂直分布规律，海拔高度从低到高。形成了半湿润常绿阔叶林（滇石栎林-黄毛青冈林-元江栲林）、暖温性针叶林（云南松林）、落叶阔叶林（圆叶杨林）（海拔高度为1570～2750m）-中山湿性常绿阔叶林（多变石栎林）（海拔高度为2650—3320m）的亚热带山地森林植被垂直分布系列。其中以暖性针叶林的面积最大，占黄家河流域天然林总面积的60．50％，而常绿阔叶林占36．69％，落叶阔叶林占2．81ok。并对这些森林植被类型的基本特征作了较为详细的论述。
In the Huangjiahe river basin of Yunnan, the natural forests cover an area of 1854. 93 hm^2, accounting for 66. 18% of the total river basin area. Based on the tel yes collected four times in October to December, 2001 - 2003, the natural forest vegetation in the river basin could be divided into 3 vegetation types, 3 vegetation subtypes or 6 formations by the vegetation classification criteria from the book, Vegetation in Yunnan. These types of forest vegetation vary with the elevations, showing a distinct law of vertical distribution. From low to high elevation, they compose the subtropical montane vertical series of forest vegetation as follows： semihumid evergreen broad-leaved forest （Form. Lithocarpus dealbatus - Form. - Form. Castanopsis orthacantha）, warm temperate coniferous forest （Form. Pinus yunnanensis ）, deciduous broad-leaved forest （Form. Populus bonatii） （ alt. 1570 to 2750 m） - middle montane humid evergreen broad-leaved forest （ Form, Lithocarpus vario- /osus） （alt. 2 650 to 3320 m） . The area of warm coniferous forest is the largest one and accounts for 60. 50% of the total area of the natural forest in the river basin, that of evergreen broad-leaved forest for 36. 69% and that of deciduous broad-leaved forest for 2. 81%. And their general forest characteristics were described in detail.
出处
《西部林业科学》
CAS
2006年第2期36-41,共6页
Journal of West China Forestry Science
基金
国家科技攻关计划项目(2000-K01-04-05-02)
关键词
云南
黄家河流域
天然森林
植被类型
Yunnan
Huangiiahe river basin
natural forest
forest vegetation
