一、旱作农业在绥化地区的战略地位 旱作农业是与灌溉农业相对而言的,它完全是靠大气降水养育的农业,所以又叫“雨养农业”。 农业生态系统是一个循环而开放的系统,与其它系统有着不可分割的联系,欲要大量物质和能量(农产品)输出,必须要有大量物质和能量的输入,水即是重要输入物质之一,发展灌溉是农业实现高产 First, the strategic position of dry farming in the Suihua region Dry farming is the relative terms of irrigated agriculture. It is entirely dependent on the precipitation of agriculture, so it is also called “rain-fed agriculture.” The agroecosystem is a recycle and open system that is inextricably linked with other systems. To export a large amount of matter and energy (agricultural products), there must be a large amount of material and energy inputs. Water is one of the important input materials, Irrigation is the development of agriculture to achieve high yield