تعتبر البيئة الإطار الفعال الذي يعيش فيه الإنسان ويتفاعل معه , ومع تطور الغنسان ونمو وازدياد متطلباته أدى ذلك إلى إحداث تغييرات شتى في النظام البيئي والتي يمكن أن تكون إيجابية أو سلبية ولضرورة تقليل الأثر السلبي للتغيير على النظام البيئي ورفع سوية التأثير الإيجابي .
The environment is the effective framework in which man lives and interacts with him, and with the development of the human being and the growth and increase of his requirements, this led to various changes in the ecosystem, which can be positive or negative, and the need to reduce the negative impact of the change on the ecosystem and raise the level of the positive impact.
References used
أحمد رفيق قاسم (1992) " المدخل إلى بحوث العمليات " . جامعة حلب
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