放牧条件下高山嵩草生长特性及其群落的变化动态  

The Growth Characteristics and Dynamic Changes of Population for Kobreisa Pygmaea in stocking condition

作　　者：杨元武[1] 李希来[1] 解永发[1] 

机构地区：[1]青海大学农牧学院,青海西宁810003

出　　处：《四川草原》2005年第8期15-17,共3页Journal of Sichuan Grassland

基　　金：国家自然科学基金项目(39960053);高等学校骨干教师资助计划项目中部分内容

摘　　要：对不同放牧强度下高山嵩草草甸植物群落变化的研究,结果表明,随着放牧强度的增加,高山嵩草总分蘖数、秆分蘖数减少,但均高于对照区,而侵入种的种数趋于增加,在放牧区内9月份达到最高值,不放牧区8月份达到最高值。复合分蘖数8月份达到最高值,芽分蘖数及其叶片数7月份达到最高值。单分蘖数和秆分蘖数均在5月份达到最高值,秆分蘖叶片数5月份达到最高值。The variation of Kobreisa Pygmaea plant population under different stocking intensity in Alpine meadow was studied. The results showed that the number of the total tillers, productive tillers which was higher than the control plot and the total invade plants decreased as the increase of grazing intensity. It reached to the maximum in September with grazing plot and no grazing plot in August. The composite tillers rose to the maximum in August, shoot tillers and its leaves in July, single tillers, production tillers and its leaves in May respectively.

关 键 词：嵩草草甸 高山嵩草 植物群落 生长特性 

分 类 号：S543[农业科学—作物学]