摘要
通过对干旱区绿洲生态安全的定义分析,认为干旱区绿洲农业生态系统安全研究必须以水分因子为关键将其置于整个绿洲的生态安全框架之下,即,外部条件必须符合整个绿洲安全规模的基本要求(主要指面积、用水量等),保证绿洲的生态安全需要,内部条件必须满足保证整个绿洲经济、社会发展的需要。进而充分考虑农业生产结构的经济、社会、生态因素,建立了符合绿洲生态安全的作物种植规模和优化结构模型。并以甘肃省民勤绿洲为例进行了实例研究,得出了较为合理的计算结果,为绿洲的生态安全及可持续发展提供了科学的发展依据。
By the definition of the oasis ecological security in the arid area,it was pointed that to study the agro-ecosystem security water factor must be taken as the key factor and place it under the oasis ecological security framework,that is,the external conditions must meet the basic size of the oasis of security requirements to ensure the oasis ecological security needs,the internal conditions must be met to ensure the economic and social development of oasis.Then taking Minqin Oasis of Gansu Province as a case study,the crop sowing scope model and optimization model for plant structure were established by given full consideration to the economic,social and ecological factors of the agricultural production structure,and more reasonable calculations were obtained that give the scientific basis for oasis＇ sustainable development.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2010年第10期150-154,共5页
Journal of Arid Land Resources and Environment
基金
国家自然科学基金项目(50579064)资助
关键词
生态安全
干旱区绿洲
种植结构
优化模型
民勤
ecological security
arid areaoasis
plant structure
optimization model
Minqin
