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松林下混栽豆科燃料树种可充分利用疏林地来生产一定数量的薪炭材,也是改善松林生态环境,促进松树生长,增加单位面积生产量的一个途径。但如何进行混栽?混栽后的效果怎样?我们于1981年结合所内的园林建设和营造异龄混交林试验,在本所内的湿地松林地里进行了间种燃料树种大叶相思、台湾相思、新银合欢、铁刀木的试验。现将试验情况小结如下。一、试验林地概况试验林地在本所东北面的银屏岭,海拔高50—60米,地处北纬23°06′,东经113°18′,年平均温度22℃,年平均降雨量1,638毫米,土壤为花岗岩薄腐殖质厚土层山地赤红壤,土壤肥力情况如表1。植被以芒箕、桃金娘、鹧鸪草、岗松等为主,林地比较干旱瘦瘠。
Pinus thunbergii hybrid fuel tree species can make full use of sparse woodland to produce a certain amount of firewood, but also to improve pine ecological environment, promote pine growth, increase the yield per unit area of a way. However, how to carry out mixed planting? What is the effect after mixed planting? In 1981, combining with the construction of gardens and the experiment of creating mixed plantations with different ages, we conducted intercropping of fuel tree species, Acacia auriculiformis, , New silver Acacia, iron knife wooden experiment. Now the test summary is as follows. I. Overview of the experimental forestland The test forestland is located at Yinpiling Ridge, northeast of our site, with an elevation of 50-60 meters above sea level. It is located at latitude 23o 06 ’north and longitude 113o 18’ east with an average annual temperature of 22 ℃ and an average annual rainfall of 1,638 mm. The soil is fine-grained humus soil granite mountain red soil, soil fertility as shown in Table 1. Vegetation to Mount Kei, myrtle, partridge grass, Kong pine and other mainly woodland relatively thin barren.