摘要
大通县2001年退耕还林(草)工程共完成种草面积为810 58hm2,占完成计划任务的99 3%,其中种植多年生牧草546 37hm2。平均出苗苜蓿56株/m2,披碱草26 5株/m2;平均盖度苜蓿69 37%,披碱草65 5%;平均产草量苜蓿20703kg/hm2,披碱草3001 5kg/hm2。
A total area of 810.58hm2 Cropland has been returned to grassland or forestland in the year 2001 in Datong,which takes up 99.3% of the planned task. Out of the total area that tas been returned to grassland or forestland, 546.37hm2 are perennial forage land. The average germination rate of alfalfa is 56 plants/square meter, and the average germination rate of Elymus is 26.5 plants/square meter. The average coverage of alfalfa is 69.3%, and the average corverage of Elymus is 65.5%, The average yield of alfalfa is 20703kg/hm2, and the average yield of Elymus is 3001.5/hm2.
出处
《青海草业》
2003年第2期36-37,共2页
Qinghai Prataculture
关键词
退耕还林(草)
调查
建议
Returning Cropping Land to Forage Land
Investigation
Suggestions
