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甘肃省处于黄土高原、青藏高原和蒙新高原交汇处,到处山岭交错,梁峁纵横。全省共有耕地约5,300多万亩,约有4,400多万亩在黄土高原和陇南丘陵、高山地带,雨急坡陡,水土流失十分严重。在这些地区的耕地中,其中将近85%都是被割切得支离破碎的山塬坡耕地,80%以上的农业人口依靠着这些坡耕地生产、生活。因此,如何提高这些坡耕地的生产能力,在甘肃省农业现代化建设上具有极为重要的意义。在广大山原坡耕地上,由于广大群众的辛勤劳动,大约有1,000多万亩修成了水平梯田、条田、控制了水土流失。但是大面积的坡耕地,耕作粗放,水土流失严重,不但
Gansu Province is located at the confluence of the Loess Plateau, the Qinghai-Tibet Plateau and the Mongol Plateau. The province has a total of more than 53 million mu of arable land, with a total area of more than 44 million mu in the Loess Plateau and Longnan hills and mountains and steep rainy and steep slope with serious soil erosion. Nearly 85% of the cultivated land in these areas is cut on shattered hillside cultivated land, and more than 80% of agricultural population rely on these cultivated land to produce and live. Therefore, how to improve the productivity of these sloping arable land is of great significance in the agricultural modernization of Gansu Province. In the majority of hillside cultivated land, due to the hard work of the broad masses of the people, about 1,000 million mu have been repaired with horizontal terraces and fields and soil erosion control. However, a large area of sloping farmland has extensive farming and serious soil erosion, not only