北部引嫩工程从1975年开始,坚持在总干和分干两侧的闲田隙地造林绿化,历经八年,造林面积已达1.8万亩,如今245公里长渠两侧,除严重碱土段外,已经形成两条防风固沙的绿色屏障。过去,这里盐碱较重,风大干旱造林较难。为战胜这种不利条件,北引管理处采取以所为单位,逐段勘查规划育林地块,根据地块的土质不同,因地而选择树种,落到图 Since 1975, the northern part of Nennou County has been carrying out afforestation on idyllic open fields on both sides of the trunk and sub-branches. After eight years of afforestation, the area has reached 18,000 mu. Nowadays, on both sides of the 245-km long channel, , Has formed two green barriers for windbreak and sand fixation. In the past, there was heavy salt and saline soil here, making it more difficult to wind and damp afforestation. In order to overcome such unfavorable conditions, the North Management Office adopted the unit-by-unit survey and planning of the planned plots for forestation. According to the different soil types of the plots,