陡坡地种植农作物害多利少

我国山丘区占国土面积的三分之二,坡耕地面积约5亿亩,其中25°以上的陡坡耕地约1亿亩,水土流失十分严重。本文根据水利部组织的调查,论证了垦种陡坡地的深远危害和逐步退耕还林还草的可行性及经济合宜性;认为,应认真贯彻水土保持法规的有关规定,严禁陡坡垦植农作物,有计划地退耕现有陡坡地,难以退耕的必须采用水土保持措施;并提出当前要广泛开展宣传教育、加强基本农田建设和制定陡坡地退耕的优惠政策等措施。

More Harm than Good by Planting Crops on Steep Sloping Land

Mountainous area covers two-thirds of total area in our country . The area of sloping farmland is about 0.5 billion mu, in which the steep sloping farmland with slope above 25 degrees is about 0.1 billion mu which subject to severe soil loss. According to the investigation organized by Ministry of Water Resources, the paper demonstrated the damage of planting on steep sloping land and the feasibility and economic suitability of returning cultivation on steep sloping farmland to afforestation and planting grass gradually Regulations put fbrward in the law of soil and water conservation should be conscientiously carried out. Planting crops on steep sloping land should be stricktly forbidden and the steep sloping farmland should be retreated in a planned way. For the sloping farmland which can't be retreated immediately, soil and water conservation measures should. be taken. This paper also proposed that propaganda and education should be implemented extensively, construction of basic farmland should be strengthened and the preferential policies for retreating farmland from steep sloping land should be formulated.