混农间作对兴安落叶松人工林土壤生态条件的影响  

Effect of Agro Intercropping on Soil Eco-Condition of Larix gmelini Plantation

作　　者：孙家宝[1] 王非[2] 刘丹[3] 

机构地区：[1]黑龙江省森林保护研究所 [2]东北林业大学 [3]黑龙江省气象科学研究所

出　　处：《防护林科技》2007年第3期36-38,共3页Protection Forest Science and Technology

摘　　要：以落叶松人工纯林及落叶松与大豆混农间作人工林下土壤为研究对象,对不同林分下土壤物理性质和化学性质进行测定及比较分析,结果表明:混农林的土壤容重低于纯林,土壤总孔隙度和含水量大于纯林。另外,落叶松与大豆间作使土壤有机质含量增加,全N、速效N、P、K的含量增加,其中间作林土壤中N素含量增加尤为明显。Taking pure forest of larch and soil under argo-soybean intercropping plantation as subjects, soil physical and chemical properties under different stand were determined and analyzed. The results show that the soil bulk density of agroforestry is lower than that of the pure forest. The total porosity and moisture content of agroforestry are bigger than that of the pure forest. The larch and soybean intercropping make the increment of soil organic matter, total N, available N, available P. and available K. Soil nitrogen content increases simaitlcantlv among others.

关 键 词：落叶松 混农间作 土壤 

分 类 号：S714.5[农业科学—林学]