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林地间作是农田防护林抚育的一项集约措施。造林后至林木郁闭前的期间内,在林地上种植适宜的作物,不仅可以促进各项林木抚育技术措施的贯彻实施,改善林木的生境条件,达到农田防护林速生丰产的目的,而且可以在同一地面空间同时进行多层次的主体配置,有效地利用光、热、水、土、气等自然资源,形成林农立体种植结构,实现一地多用,以林为主,多种经营,提高林地单位面积产量,弥补林木生产周期长、抚育期间经济收益少的缺陷,发挥以短养长的作用,从而提高农田防护林整个生长周期内的综合效益和近期经济效益。
Intercropping of woodland is an intensive measure to nurture farm shelterbelts. During afforestation until the forest is closed, planting suitable crops on the forest land can not only promote the implementation of various forest tending technical measures, improve the habitat conditions of forest trees, and achieve the purpose of fast-growing and high-yield farmland shelterbelts, Ground space at the same time the main body of multi-level configuration, the effective use of light, heat, water, soil, gas and other natural resources, the formation of three-dimensional planting structure of forest farmers, to achieve a multi-purpose, mainly to forest, a variety of management, Yield, to make up for the long production cycle of trees, short economic benefits during tending, to play a short supporting role, so as to improve the comprehensive benefits and recent economic benefits of farmland shelterbelt throughout the growth cycle.