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黑龙江省九三国营农场管理局所辖11个农场,土地总面积836万亩,其中耕地面积300万亩,有80%为三度以下的缓坡耕地。在开发40多年的历程中.由于自然的和人为的因素,坡耕地黑土层减薄,地力下降,沟壑增加,使机械耕作受到了严重的危害。全垦区形成的大型沟壑有1,649条,使连片的土地被切割得支离破碎,减少耕地面积3.5万亩。机械作业绕沟行走,增加耗油,降低效率,提高成本,多次造成翻车事故。为了控制水土流失的发展,他们在大力营造农防
Heilongjiang Province Jiu San State Farm Management Bureau under the jurisdiction of 11 farms, the total area of 8.36 million mu of land, of which 300 million mu of cultivated land, 80% of three degrees below the gentle slope of cultivated land. During the more than 40 years of development, due to natural and man-made factors, black soil on sloping fields has been reduced in thickness, soil fertility has been reduced and gully has been increased, which has severely damaged the cultivation of machinery. There are 1,649 large gully areas formed in the entire reclamation area, which cut pieces of contiguous land fragmented and reduce the cultivated area by 35,000 mu. Mechanical work around the ditch walking, increasing fuel consumption, reduce efficiency, increase costs, repeatedly causing rollover accidents. In order to control the development of soil and water loss, they are vigorously creating agriculture