试验选择株行距3m×28m，10～11a的杨农间作田，研究其光强和土壤水分空间分布与农作物生长发育的关系。结果表明，间作田林冠下和林冠外的光强分别为全日照的36．4％和74．8％；行中为80.2％。林冠下和林冠外的土壤含水率分别为行中的62．63％～67．71％和88．88％～73．73％。由于光照不足和水分胁迫，降低了作物的株高和叶面积，使花生和小麦的平均产量比对照田分别降低22．3％和19．9％。 Experiments were conducted to study the relationship between light intensity and spatial distribution of soil moisture and crop growth and development in Yangmian intercropping field with 3m × 28m spacing and 10 ~ 11a spacing. The results showed that the light intensities outside intercropped canopy and canopy were 36.4% and 74.8% of the full sunshine and 80.2% respectively. The soil moisture content under canopy and canopy were 62.63% -67.71% and 88.88% -73.73% respectively in the row. Due to insufficient light and water stress, plant height and leaf area were reduced, and the average peanut and wheat yield was reduced by 22.3% and 19.9% ​​respectively compared with the control field.