围栏封育对环湖地区高寒草原植物群落地上生物量的影响  

Effect of Fencing-endosure on Aboveground Biomass of Plant Comunities for Alpine-cold Grassland around Region of Qinghai Lake

作　　者：郑伟[1,2] 李红涛[1,2] 董全民[1] 马玉寿[1] 施建军[1] 杨时海[1] 王柳英[1] 

机构地区：[1]青海省畜牧兽医科学院,西宁810016 [2]青海大学

出　　处：《青海畜牧兽医杂志》2011年第4期8-10,共3页Chinese Qinghai Journal of Animal and Veterinary Sciences

基　　金：国家"十一五"科技支撑计划项目(2007BAC30B04)和(2009BAC61B02);国家自然基金项目(30960074);青海省科技厅重点项目(2009-N-502)

摘　　要：研究了围栏封育对环湖地区高寒草原植物群落地上生物量的影响,结果表明:在牧草的整个生长季,总生物量呈单峰曲线变化,生育初期地上生物量最小,到8月上旬生物量达到最大,为267.1g/m2。围栏封育有利于优良牧草(禾草+莎草)的生长,提高优良牧草的百分比组成;抑制阔叶草(豆科+杂草)的生长,降低其百分比组成。The effect of fencing-endosure on aboveground biomass of plant comunities for alpine-cold grassland around the region of Qinghai lake.The results showed that the change of total biomass showed a single peak curve in the whole growing season of grass.The aboveground biomass was minimum during the initial growth and was the maximum in the first ten-day period of August which was 267.1g/m2.The fencing-endosure conduced to growth of good forage（grasses and sedges）and increase the percentage of good forage,and suppress the growth of broadleaf forage and decrease the percentage of broadleaf forage.

关 键 词：围栏封育 高寒草原 牧草生长季 地上生物量 季节动态 

分 类 号：S813.2[农业科学—畜牧学]