天山北坡中山带退化山地草甸补播改良试验研究  

Study on Improvement of Degraded Mountain Meadow by Reseeding in Northern Slope of Tianshan Mountain

作　　者：侯钰荣[1] 任玉平[1] 魏鹏[1] 李超[1] 宋跃斌 

机构地区：[1]新疆畜牧科学院草业研究所,乌鲁木齐830000 [2]新疆昌吉市草原站,昌吉831100

出　　处：《中国草食动物科学》2016年第5期45-47,54,共4页China Herbivore Science

基　　金："十二五"农村领域国家科技计划课题(2012BAD13B03);新疆草原牧区生态保护利用与牧民定居区饲草料生产保障技术研究与示范

摘　　要：针对新疆草地退化严重的现状,选择在天山北坡中山带沟谷退化的山地草甸类型进行对比试验。结果表明:通过补播改良,草地质量从中等提高到优等,质量提高了2个等级;混合牧草粗蛋白质由13.24%提高到了19.72%,提高了6.48个百分点;草地产草量由年产鲜草10 860.55 kg/hm^2增加到12 150.60 kg/hm^2,产草量提高了11.88%;投入与产出比1∶25.94,对照区为1∶19.06,补播改良投入与产出高于对照区。In order to solve the meadow degradation in northern slope of Tianshan Mountain,an experiment was done to compare the effect of reseeding improvement in the middle zone. The results showed that the reseeding improved meadow quality from medium to finest grade,rising two grades;the crude protein increased from 13.24% to 19.27%,upping 6.48 percentage points;he grass yield increased from 10 860.55 kg/hm2 to 12 150.6 kg/hm2,upping 11.88 percentage points;the ratio input and output was 1∶25.94,while that of the control was 1∶19.06.

关 键 词：天山北坡 山地草甸 补播 改良 效益分析 

分 类 号：S812.8[农业科学—草业科学]