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文章研究了地处低纬高原季风气候的元江和亚热带高原季风气候的开远2个地区的旱地甘蔗土壤各耕层的水分特征常数,结果表明,开远地区土壤各土层的田间持水量平均为285 g/kg,元江地区平均为204 g/kg。在研究区域各土层中最大田间持水量出现在0~20 cm的耕作层,随土层的增加呈减小趋势;开远各土层平均容重为1.02~1.41 g/cm~3,元江各土层平均容重为1.35~1.66 g/cm~3,土壤容重随深度增加而增大。
The paper studied the water feature constants of dryland sugarcane soil topsoil in two sub-regions of Yuanjiang and subtropical monsoon climate of the monsoon climate in the low latitude plateau. The results showed that the average field water holding capacity of various soil layers in the Kaiyuan area was 285 g / kg, an average of 204 g / kg in the Yuanjiang area. In the study area, the maximum field water holding capacity in the 0-20 cm tillage layer decreased with the increase of soil layers. The average bulk density of each soil in Kaiyuan ranged from 1.02 to 1.41 g / cm ~ 3. The average bulk density of soil is 1.35 ~ 1.66 g / cm ~ 3, soil bulk density increases with depth.