按《全国生态环境建设规划》要求 ,国家决定有计划地将陡坡地实行退耕还林还草。这样 ,怎样解决好退耕陡坡地的绿化效果和提高经济效益这两个问题就摆在我们面前。退耕后的还林还草 ,既要本着宜林则林宜草则草的方式处理 ,更应重视林草 (实际上还包括果草 )混种的作用。因为 , According to the requirements of the “National Ecological Environment Construction Plan”, the state decided to implement the plan of returning farmland to forests and grasses on the steep slopes. In this way, how to solve the afforestation steep slopes and improve economic efficiency of these two issues before us. After returning farmland to forest and grassland, it is necessary to treat the forest in accordance with the mode of forest grass should be appropriate, but should pay more attention to forest and grass (in fact, including fruit grass) mixed role. Because,