摘要
"粮改饲"试点的甘肃中部地区属农牧交错区,农作物秸秆资源丰富,草食家畜饲草需求量大,秸秆饲料化利用势在必行。以中部地区2012~2016年主要农作物的经济产量为依据,采用草谷比和可收集系数法,估算甘肃中部地区秸秆可收集利用量;以草食家畜日均采食量为标准,测算秸秆载畜发展潜力。结果表明:甘肃中部地区可收集秸秆资源总量为252.80万t,其中玉米秸秆占比72.51%,秸秆资源呈增长趋势;可收集秸秆实际载畜量为345.15万羊单位,理论发展潜力为577.17万羊单位,秸秆载畜牧业发展潜力巨大。
The central area of Gansu Province,which is a‘grain-to-feed’pilot,is an agro-pastoral ecotone with abundant crop straw resources and a large demand of herbivores for forage,therefore,the utilization of straw for feed is imperative.Based on the economic output of the main crops in the central region from 2012 to 2016,the grass-grain ratio and collectable coefficient method were used to estimate the amount of straw collected and utilized in central Gansu;the average daily feed intake of herbivores was used as the standard to measure the development potential of straw livestock-carrying.The results showed that the total amount of straw resources collected in central Gansu was 252.80 million tons,of which corn stalks accounted for 72.51%,the straw resources showed an increasing trend in the past 5 years;the actual carrying capacity of straws was 3.451 million sheep units,and the theoretical development potential was 5.771 million sheep units,the development potential of straw livestock-carrying industry is huge.
作者
罗峰
张浩珍
杨婕妤
陈强强
LUO feng;ZHANG hao-zhen;YANG jie-yu;CHEN Qiang-qiang(College of Finance and Economics,Gansu Agricultural University,Lanzhou 730070,China)
出处
《草原与草坪》
CAS
CSCD
2021年第1期113-118,125,共7页
Grassland and Turf
基金
甘肃省社科项目:“草原生态补偿政策下甘肃省农牧民可持续生计研究一基于可持续生计框架”(19YB127)。
关键词
秸秆
草谷比
畜牧承载力
发展潜力
甘肃中部
straw
grass-grain ratio
livestock-carrying capacity
development potential
central Gansu
