甘肃省青藏高原地区家畜生产碳排放时空变化分析  

Temporal and Spatial Variation of Carbon Emission from Livestock Production and Its Influencing Factors in Qinghai-Tibet Plateau of Gansu Province

作　　者：彭亚钊 燕振刚[1] PENG Yazhao;YAN Zhengang(College of Information Science and Technology,Gansu Agricultural University,Lanzhou,Gansu,730070)

机构地区：[1]甘肃农业大学信息科学技术学院,甘肃兰州730070

出　　处：《家畜生态学报》2022年第11期54-58,共5页Journal of Domestic Animal Ecology

基　　金：甘肃省重点研发计划项目(21YF5FA095);甘肃省财政厅项目(GSCZZ-20160909-03);国家自然科学基金项目(31660347)。

摘　　要：选取青藏高原甘肃境内的12个县的家畜为研究对象,运用生命周期法,从时空两个维度评估了近5年甘肃省青藏高原地区3种海拔区域家畜碳排放值和近25年的排放规律,系统分析其变化趋势。结果表明:(1)2012-2016年,甘肃青藏高原地区碳排放量由54.95×10^(4) t CO_(2)-eq增长至71.28×10^(4) t CO_(2)-eq,年均增长率为1.05%。(2)2012-2016年,猪、牛和羊畜产品的碳排放值有下降趋势。(3)海拔在3500 m以上区域的猪肉和牛肉碳排放值显著高于低海拔区域的值(P<0.05),3000 m以下海拔的排放值显著高于3000~3500 m海拔区域的值(P<0.05)。(4)海拔在3000 m以下区域羊肉的碳排放值显著高于高海拔区域的值,3000~3500 m海拔的排放值显著高于3500 m以上海拔区域的值(P<0.05)。The study selected the livestock in 12 counties of Gansu province on the Qinghai-Tibet Plateau as the research objects,and used life cycle method to determine the carbon emission value of livestock in three altitudes in Gansu Province which is on the Qinghai-Tibet Plateau during recent 5 years and the carbon emission laws of recent 25 years from spatial and temporal dimensions.The results showed:(1)the carbon emission in Qinghai Tibet Plateau increased from 54.95×10^(4) t CO_(2)-eq to 71.28×10^(4) t CO_(2)-eq at an average annual growth rate of 1.05%during 2012-2016.(2)During 2012-2016,the carbon emission of pig,cattle and sheep showed a downward trend.(3)The carbon emission of pork and beef at an altitude of more than 3500 m were significantly higher than those at a low altitude(P<0.05),and the carbon emission at an altitude of less than 3000 m were significantly higher than those at an altitude of 3000~3500 m(P<0.05).(4)The carbon emission of mutton at an altitude of less than 3000 m was significantly higher than that at a high altitude,and the carbon emission value at an altitude of 3000~3500 m was significantly higher than that at an altitude of more than 3500 m(P<0.05).

关 键 词：青藏高原 家畜生产 碳排放 生命周期法 

分 类 号：S811.5[农业科学—畜牧学]