草业科学
草業科學
초업과학
Pratacultural Science
2015年
10期
70-79
,共10页
曲云鹤%余成群%孙维%武俊喜%李少伟
麯雲鶴%餘成群%孫維%武俊喜%李少偉
곡운학%여성군%손유%무준희%리소위
随机前沿生产函数%饲草生产技术效率%西藏“一江两河”地区
隨機前沿生產函數%飼草生產技術效率%西藏“一江兩河”地區
수궤전연생산함수%사초생산기술효솔%서장“일강량하”지구
stochastic frontier production function%technical efficiency of grass production%“One River and Two Tributaries”Region in Tibet
以西藏“一江两河”地区农户调研数据为基础,运用随机前沿生产函数估算农户饲草生产技术效率及影响因素,并从饲草类别、农业规模和地区分布3个维度进一步分析技术效率的增产空间。结果显示,饲草生产存在显著效率损失,提高生产效率,单产还有近30%的增长空间;投入要素劳动、种子、燃料、农家肥、化肥和土地产出弹性分别为0.1423,0.2197,0.1309,0.2600,0.2265和0.0206;品种差异是饲草技术效率最主要影响因素,农业规模和流动资金要素对饲草生产效率提高产生间接负向影响,人力资本和农业综合生产能力要素对饲草生产效率影响不显著。释放饲草生产技术效率增产空间,可采取推广普及豆科饲草生产技术、扩大饲草种植规模、各地区(特别是拉萨地区)进一步明确适宜引种的饲草品种等策略。
以西藏“一江兩河”地區農戶調研數據為基礎,運用隨機前沿生產函數估算農戶飼草生產技術效率及影響因素,併從飼草類彆、農業規模和地區分佈3箇維度進一步分析技術效率的增產空間。結果顯示,飼草生產存在顯著效率損失,提高生產效率,單產還有近30%的增長空間;投入要素勞動、種子、燃料、農傢肥、化肥和土地產齣彈性分彆為0.1423,0.2197,0.1309,0.2600,0.2265和0.0206;品種差異是飼草技術效率最主要影響因素,農業規模和流動資金要素對飼草生產效率提高產生間接負嚮影響,人力資本和農業綜閤生產能力要素對飼草生產效率影響不顯著。釋放飼草生產技術效率增產空間,可採取推廣普及豆科飼草生產技術、擴大飼草種植規模、各地區(特彆是拉薩地區)進一步明確適宜引種的飼草品種等策略。
이서장“일강량하”지구농호조연수거위기출,운용수궤전연생산함수고산농호사초생산기술효솔급영향인소,병종사초유별、농업규모화지구분포3개유도진일보분석기술효솔적증산공간。결과현시,사초생산존재현저효솔손실,제고생산효솔,단산환유근30%적증장공간;투입요소노동、충자、연료、농가비、화비화토지산출탄성분별위0.1423,0.2197,0.1309,0.2600,0.2265화0.0206;품충차이시사초기술효솔최주요영향인소,농업규모화류동자금요소대사초생산효솔제고산생간접부향영향,인력자본화농업종합생산능력요소대사초생산효솔영향불현저。석방사초생산기술효솔증산공간,가채취추엄보급두과사초생산기술、확대사초충식규모、각지구(특별시랍살지구)진일보명학괄의인충적사초품충등책략。
Based on the agricultural household on-the-spot investigation data collected in the “One River and Two Tributaries”Region of Tibet,we estimated the technical efficiency of grass production of agricultural households using the stochastic frontier production function.This method estimates the contributions of grass family differences,farm size,and region distribution to the technical efficiency of grass production.The results indicated that there is a loss of technical efficiency in grass production in the “One River and Two Tributaries”Region of Tibet.The yield per mu could increase by approximately 30% with improved technical efficiency. The output elasticity coefficients with respect to input factors of labor,seeds,fuel,organic fertilizer,chemical fertilizer,and land were 0.1423,0.2197,0.1309,0.2600,0.2265,and 0.0206,respectively.Grass family difference was identified as the key factor in improving technical efficiency.Farm size and liquidity strongly af-fected the technical efficiency of grass production via their effects on other input factors such as labor and cap-ital.This was because of the disadvantageous position of resource use,compared with animal husbandry and off-farm industries.Human capital and agricultural comprehensive production capability did not affect the tech-nical efficiency of grass production.Increasing the grass yield by improving technical efficiency can include measures such as extending the production technology to legume forage grasses,enlarging grass planting areas, and identifying which grass families are best adapted for growth in different regions,especially Lhasa.