干旱区生态环境知识资源中心(Arid): 基于经济和生态视角的民勤县种植结构效益对比分析

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	基于经济和生态视角的民勤县种植结构效益对比分析
其他题名	Comparative analysis of planting structure benefits in Minqin based on economic and ecological perspective
	高雅灵; 林慧龙; 陈磊
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2019
卷号	33 期号:4 页码:96-102
中文摘要	农业种植结构调整是干旱地区在生态重建时期的重要手段之一.选择水资源短缺的甘肃省民勤县,对不同种植结构效益进行对比分析,对于我国干旱地区农业种植结构调整具有启示意义.本研究基于对民勤县3个样本乡镇的实地调研及对应的农田土壤采样,通过建立C - D函数模型和计算相关生态指标,从经济和生态视角探索,传统粮食种植结构、粮经二元种植结构和"粮改饲"种植结构的综合效益.结果表明:在上述三种种植结构中,"粮改饲"种植结构的总投入最少,收益率最高;现阶段苜蓿、小麦、玉米和葵花均处于规模报酬递增阶段,但相比较,苜蓿各要素的弹性系数之和更高.增加种子、肥料和机械费用投入可实现苜蓿增产;种植饲草作物较种植粮食作物和经济作物土壤有机碳的平均含量更高,绿期更长,水经济效益也更高.
英文摘要	The agricultural planting structure adjustment was one of the main means for ecological reconstruction in arid areas. Minqin county,Gansu Province,which feature the shortage of water resource,was selected as the research area to compared the effects of different planting structures,is enlightenment for agricultural planting structure adjustment in arid regions of our country. The study was based on the field survey and corresponding farmland soil sampling of three towns in Minqin County. Through the establishment of C - D function model and the calculation of relevant ecological indicators,the comprehensive benefits of the traditional grain planting structure, the grain - economic dual factors planting structure and " changing grain to forage " planting structure were explored from the economic and ecological perspectives. The results showed that: Among the above three planting structures,the total investment of " changing grain to forage " planting structure was the least,and had the highest profit ratio. At the moment,alfalfa,wheat,maize and sunflower were in the stage of increasing returns to scales,but in comparison,the sum of the elastic coefficients of factors of alfalfa was higher,indicating improvement of seeds,fertilizers and machinery inputs can increase alfalfa production. The average content of soil organic carbon was higher when planting forage crop than that of planting food crop and economical crop,and the green period was longer and the water economic benefit was also higher.
中文关键词	种植结构 ; C - D生产函数 ; 经济效益 ; 生态效益
英文关键词	planting structure C - D production function economic benefits ecological benefits
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Agriculture
WOS研究方向	Agriculture
CSCD记录号	CSCD:6458035
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239193
作者单位	高雅灵, 兰州大学草地农业科技学院, 草地农业生态系统国家重点实验室;;农业农村部草牧业创新重点实验室;;草地农业教育部工程研究中心, 兰州, 甘肃 730020, 中国.; 林慧龙, 兰州大学草地农业科技学院, 草地农业生态系统国家重点实验室;;农业农村部草牧业创新重点实验室;;草地农业教育部工程研究中心, 兰州, 甘肃 730020, 中国.; 陈磊, 兰州大学草地农业科技学院, 草地农业生态系统国家重点实验室;;农业农村部草牧业创新重点实验室;;草地农业教育部工程研究中心, 兰州, 甘肃 730020, 中国.
推荐引用方式 GB/T 7714	高雅灵,林慧龙,陈磊. 基于经济和生态视角的民勤县种植结构效益对比分析[J]. 兰州大学,2019,33(4):96-102.
APA	高雅灵,林慧龙,&陈磊.(2019).基于经济和生态视角的民勤县种植结构效益对比分析.干旱区资源与环境,33(4),96-102.
MLA	高雅灵,et al."基于经济和生态视角的民勤县种植结构效益对比分析".干旱区资源与环境 33.4(2019):96-102.