云南新街至河口高速公路沿线植被特征  

Characteristic of Vegetation along the Highway from Xinjie to Hekou in Yunnan Province

作　　者：马万权 杨汉忠[2] 刘春霞[2] 

机构地区：[1]云南新河高速公路建设指挥部,昆明661300 [2]北京深华科交通工程有限公司

出　　处：《东北林业大学学报》2008年第3期28-30,共3页Journal of Northeast Forestry University

摘　　要：通过对新街—河口高速公路沿线的次生裸露边坡自然恢复植被的调查,共发现植物40种、20科。自然恢复2 a的边坡为红藤+葛藤+狗牙根植被群落,恢复20 a的边坡为粽叶芦+马鹿草+山蚂蝗植被群落,恢复40 a的边坡为滇桐+银合欢+荩草群落。通过对物种丰富度、均匀度及优势度的研究表明,新街—河口沿线次生裸露坡面随着自然恢复时间的增加,其物种丰富度和乔木优势度不断增加,占优势群落的均匀度也在逐渐增大。A survey was conducted to study the secondary vegetation by natural restoration along the highway from Xinjie to Hekou. Results show that 41 species belonging to 23 families are recorded in three typical vegetation communities （ Beishan, Nanping and 326 National Highway）. The community composition for Nanping after a two-year restoration is Merremia vitifolia ＋ Pueraria lobata ＋ Cynodon dactylon （ L. ） Per, Thysanolaena maxima ＋ Microstegium gratum ＋ Desmodium sinuatum B1 for Beishan after 20-year restoration, and Craigia yunnanensis ＋ Leucanea leucocephala de Wit ＋ Arthraxon hispidus for 326 National Highway after 40-year restoration. Analysis of species richness index, evenness index, and dominance index of the vegetation communities shows that the richness index and dominance index of arbor trees increase with restoration time prolonging, and the evenness index of the dominant community also exhibits an increasing tendency.

关 键 词：新河高速公路 次生裸露坡面 植被特征 植被恢复 

分 类 号：S731.8[农业科学—林学]