摘要
青海省都兰县天然草地面积212.65万hm2,有荒漠草原类、山地草原类、高寒草原类、草原化荒漠类、干荒漠类、山地荒漠类、高寒草甸类、山地草甸类、沼泽类、高寒沼泽类、灌丛草甸类、疏林类草地12类。各类草地在全县的分布、面积和生产力各不相同:高寒草原类面积最大,为75.25万hm2,而山地草甸类面积最小,仅为273hm2;高寒沼泽类年生物量最高,平均产可食鲜草10791kg/hm2,高寒草原类年生物量最低,平均产可食鲜草1945kg/hm2。全县可利用草地155.42万hm2,可载畜140.94万个羊单位。
The natural grassland area in Dulan County of Qinghai Province was 2 126 500 hm2, and the natural grassland had 12 types including desert grassland, mountain grassland, alpine grassland, steppe-desert, dry desert, mountain desert, alpine meadow,mountain meadow, swamp, alpine swamp,shrub meadow, and open forest grassland. Various types of grassland had different distribution, area and productivity in this county. The alpine grassland had the largest area （752 500 hm2）, while the mountain meadow had the smallest area （273 hm2）. The alpine swamp had the highest annual biomass with average production of edible fresh of 10 791 kg/hm2, while the alpine grassland had the lowest annual biomass with average production of edible fresh of 1 945 kg/hm2. The available grassland was 1 554 200 hm2 in area, and its stock capacity was 1 409 400 sheep units.
出处
《畜牧与饲料科学》
2011年第4期56-60,共5页
Animal Husbandry and Feed Science
关键词
天然草地
草地资源
草地类型
生产力
natural grassland
grassland resources
grassland types
productivity
