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黄河三角洲是指因泥沙淤积,填海造陆,在黄河口地区所形成的以宁海为顶点,北起套尔河口,南至淄脉河口的扇形地域(面积5450km~2)。由于人们长期不合理开发利用,导致这一地区生态环境十分脆弱,农业生产徘徊不前。为充分挖掘黄河三角洲地区的生产潜力,把资源优势转化为经济优势,早日建成现代化的外向型的多功能的新经济区,且能保持较稳定的生态平衡和优良的生态环境,应从充分发挥该区各生态系统的边缘效应入手,探讨生态农业发展模式。 边缘效应是指在两个或多个不同性质的生态系统交互作用处,由于某些生态因子或系统属性的差异和协同作用
The Yellow River Delta refers to the fan-shaped area (area 5450km ~ 2) with the Ninghai Sea formed at the mouth of the Yellow River estuary and the mouth of the mouth of the Tal River in the north and the mouth of the Zi-ve River in the south due to sedimentation and land reclamation. Due to unreasonable development and utilization of people for a long time, the ecological environment in this area is very fragile and agricultural production is stagnant. In order to fully exploit the productive potential of the Yellow River Delta region, turn resource advantages into economic advantages and build a modern and extroverted multi-functional new economic zone at an early date and maintain a relatively stable ecological balance and an excellent ecological environment, District edge of the ecological system to start with the ecological agriculture development model. Edge effect refers to two or more different types of ecosystem interactions, due to some ecological factors or differences in system attributes and synergies