柳绕地区混农林业立体经营模式与效益分析

在辽宁柳绕地区通过多年试验与生产实践表明，进行混农林业立体经营，以造林前１年或１年生林地间种西瓜，第２～５年生林地间种玉米，然后再间种几年紫花苜蓿，即林瓜－林粮－林草立体经营模式效果最佳。其主要优点是：提高光能利用率，为社会增加粮食和瓜果，为农民和林场增加收入，促进林木生长，提高森林生产力。本文提出了混农林业立体经营的最佳模式及取得最佳效益的关键技术，为平原林区进行混农林业立体经营提供了重要的科学依据

Analysing the Benefits of Agroforestry Stereoscopic Management in Liu-Rao River Basin of Liaoning Province

Through several years' experiment and productive practice in the Liu-Rao area of Liaoning Province,it was demonstrated that the best result could be got in the agroforesty stereoscopic management.If watermelon was intercropped before afforestation or in the first year of afforestation,maize in the 2nd-5th year,and the purple-flower lucerne for several years aftercoards.The main advantages were increasing utilization rate of solar energy in the forest land,adding food and fruit yield for society,increasing income of peasants and forest farms.promoting forest tree growing and increasing forestry productivity.In this article,an opitmum model of agroforestry stereoscopic management was introduced,a key technology to gain high benefit and impromant scientific basis for plain forestry zone was suggested.