不同遮荫条件下牛鞭草生长特征分析  

Growth Characteristics Analysis of H.Compressa under Different Shading Degrees

作　　者：张学权[1] 

机构地区：[1]成都大学旅游文化产业学院,四川成都610106

出　　处：《成都大学学报（自然科学版）》2013年第1期12-14,共3页Journal of Chengdu University（Natural Science Edition）

摘　　要：模拟遮荫条件下,探讨牛鞭草生长特征.试验结果表明:强遮荫条件下(79%和60%)牛鞭草不能适应环境,生长势较弱;低遮荫度(16%和48%)下牛鞭草茎粗变化不大,因趋光效应其高度略有增加,相对全光照下生物量变化而言,低遮荫度下的相对生物量变化比值也处于相对稳定或略有增加的趋势.试验结果为林+草模式植被恢复后的林冠层郁闭度控制经营管理和后期的进一步研究提供了一定的借鉴.The growth characteristics of H. compressa was analyzed under different simulating shading envir- onments. The result showed that the H. compressa couldn＇ t adapt to the strong shading environment of cov- eting rate 79 % and 60% and grew weakly;Under the low covering rate of 48 % and 16%, the H. compres- sa＇ s stem diameter remained the same, but the height increased. The relative biomass ratio was stable or in- creased a few according to the full sunlight condition. The results of this simulation experiments would pro- vide the reference for the forest canopy control operation and management and further study in the tree-grass vegetation restoration pattern.

关 键 词：模拟 遮荫 牛鞭草 生长 

分 类 号：S718.43[农业科学—林学]