杨粮间作条件下的作物产量与生物量  

The Influence of Intercropping of Poplar with Crops on Crop Yielding

作　　者：袁玉欣[1] 裴保华[1] 王文全[1] 贾渝斌 刘振廷 张振江 赵惠民 邵吉祥[1] 

机构地区：[1]河北农业大学林学院,河北魏县林业局,河北大名国营卫东林场,河北定州市林业局,河北省林业厅,北京林业大学

出　　处：《河北农业大学学报》1996年第2期24-30,共7页Journal of Hebei Agricultural University

基　　金：河北省首届自然科学基金

摘　　要：通过３ａ对杨粮间作的农作物产量和地上部分生物量的测定，初步确定农作物与幼林（２～４ａ生）间作，随着幼林的生长其产量是递增的，幅度为５．０％～８．０％，同时，间作地产量也比对照提高５．０％以上；与成林（８～１０ａ生）间作时，随着林木生长其产量是逐年下降的，同时在行距７～３０ｍ范围内，农作物产量随行距减少而下降。当行距为３０ｍ时，与对照相比，其小麦产量保证７５％以上，玉米或花生６５％以上。根据试验结果建议幼林间作采取小株距（３～４ｍ）大行距（１０～１５ｍ）的间作方式并且当杨树成林时，行距不应小于３０ｍ。Through three years study on crop yield and above ground biomass at the regime of intercropping,it was demonstrated preliminarily that the crop yield increased gradualy,5. 0 ￣ 8. 0%, along with the growth of young poplar (2-4 years old)and was over 5. 0% than that of non-stock land; the crops yield,on the other hand, decreased gradually not only as the growth of half-mature poplar(8-10 years old) but with the reduction of the spacing between rows in the range of 7-30 m,and the wheat and maize or peanut yield,reaped from intercropping land,was respectively over 75 % and 65 % of that of non-stock land when the spacing between rows was 30m. It was proposed that intercropping of young poplar with crops should take the patterns of narrow spacing in the row (3-4m)and wide spacing between rows(10￣ 15m)which was not less than 30 m when the poplar was at the half￣mature stage.

关 键 词：杨 粮 间作 间作模式 混农林业 产量 生物量 

分 类 号：S753.536[农业科学—森林经理学]