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1983至1987年我们在西充县多扶区进行林粮间作效益试验观测,现将5年的观测结果初报如下.一、试验地自然概况和试验方法西充县多扶区位于北纬30°53′—31°03′,东经105°53′—106°01′,地貌为台坝状、馒头状浅丘,间有平坝,海拔280—535m,相对高差20—150m,年平均温度17.6℃,年降雨894.6mm.土壤以紫色土为主,pH值7.5—8.0,土层厚15—70cm.1983年栽植柏木2714.5Ha,1984、1985年种在柏木林中种植桤木.同时开始间种,春季间种花生、绿豆、
From 1983 to 1987, we carried out the forest-grain intercropping benefit experiment observation in the multi-aid area of Xichong County, and now the preliminary results of the 5-year observation are as follows: 1. The natural conditions and test methods of the experimental area Xixian County Multi-aid Area is located at 30 ° N 53’-31 ° 03’E and 105 ° 53’-106’E longitude. The topography of the landform is dam-shaped with steamed bread-like shallow hills with Pingba at an elevation of 280-535m with relative elevation of 20-150m and annual average temperature of 17.6 ℃, annual rainfall of 894.6mm. The soil mainly purple soil, pH value 7.5-8.0, soil thickness 15-70cm. 189 years of seedlings in the Castle 2714.5Ha, 1984, 1985 planted alder in cypress wood. At the same time between the beginning Species, spring peanut, mung bean,