本文通过田间长期定位试验,研究经空间移位后农田黑土有机质含量与土壤温度、含水量的关系。结果表明:在土壤有机质含量低于60 g/kg时,土壤表层温度随有机质含量的增加而升高;各处理土壤温度相差最高可达6.8℃;10cm深处的土壤温度在夜间也存在较大差异;在玉米全生育期内各处理之间土壤温度变化有明显的规律性,在气温高时差异显著;土壤有机质含量与土壤含水量呈显著正相关,土壤有机质与土壤温度呈负相关,但不显著。
Based on a long-term field experiment established by soil removal, the relationships among soil organic matter,soil moisture and temperature were studied. The results showed: the top soil temperatures increased with the organic matter content increase when the soil organic matter content was less than 60 g/kg,the highest difference of the top soil temperatures among five soil organic matter soils was 6.8℃. There were a big difference of soil temperature at the depth of 10 cm during night; during corn growth period,the five soil temperatures changed regularly,the differences among the five soils were large when air temperature was high. There was a significant positive relationship between the black soil organic matter content and soil moisture, a negative relationship between the black soil organic matter content and soil temperature,but it was not significant.