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本文以河南省封丘县鲁冈乡境内的泡桐-小麦-玉米(paulownia-wheat-maize)间作为研究对象,对农桐间作系统的土壤养分与小气候,林木与农作物的生物生产力等进行了系统测定;分析了林带间环境因子与农作物产量之间的相互关系;运用Logistic曲线拟合林带内农作物产量,设计了农桐间作的最优行距,为探讨农林复合系统的结构优化提出了新方法。
In this paper, paulownia-wheat-maize in Lugang Township, Fengqiu County of Henan Province was used as the research object to systematically study the relationship between soil nutrient and microclimate in Agropyron chinensis community and the biological productivity of trees and crops The relationship between forest environmental factors and crop yield was analyzed. The yield of crop was calculated by fitting Logistic curve to the yield of cropland. The optimal spacing of crop was designed and a new method was proposed to explore the structural optimization of agroforestry system.