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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。
Through the definitional analysis of the ecological security of the oasis in arid area, it is considered that the research of agro-ecosystem security in the oasis of arid area must take the water factor as the key to put it under the ecological safety framework of the whole oasis, that is, the external conditions must conform to the safety scale of the oasis Basic requirements (mainly referring to the area, water consumption, etc.) to ensure the ecological safety needs of oasis, the internal conditions must be to ensure that the entire oasis economy and social development needs. Then, taking full account of the economic, social and ecological factors of agricultural production structure, we established the crop planting scale and optimization structure model in line with the ecological security of oasis. Taking the Minqin Oasis in Gansu Province as an example, the case study is carried out and a more reasonable calculation result is obtained, which provides a scientific basis for the ecological security and sustainable development of the oasis.