Poor drainage causes deficient soil aeration and death of the roots.
排水不良能减低土壤的透气性，使根死亡。
Raising duck or raising fish in rice field can clearly improve soil physics properties and the soil aeration.
稻田养鸭、养鱼能明显改善土壤物理性状，提高土壤的通气性。
Aeration porosity is more sensitive than total and capillary porosity to reflect soil compaction degree.
与总孔隙度和毛管孔隙度相比，通气孔隙度在反映土壤压实时更为敏感。
This article mainly studied the variation of aeration porosity in soil under shed protection in Harbin, Heilongjiang Province.
本文主要对黑龙江省哈尔滨市一定点大棚内土壤剖面通气孔隙的变化进行了研究。
After planting alfalfa, the soil aggregate was increased and the permeability of soil moisture and aeration of soil was enhanced.
种植苜蓿能增加土壤团聚体含量，提高土壤通气透水能力。
Nitrogen adsorption performance of zeolite and soil in constructed wetlands treating agricultural wastewater, dynamic absorption and reactivation with aeration of zeolite were studied.
该文研究了处理农业污水的人工湿地中的沸石和土壤的氮的解吸附性能、沸石的动态吸附和曝气再生。
The article describes its characteristics and points out their study directions. One is how to control soil water in aeration zone, the other is numerical simulation study on water-gas flow.
本文在阐述包气带水特征的基础上，指出了包气带水研究方向：一是包气带中土壤水的调控研究，二是水—气二相流数值模拟研究。
With improvement of aeration, infiltration and drainage percent, the availability of moisture soil increases corresponsively.
随着土壤的通气性和渗透、排水率的改善，土壤有效水分增加。
Investigation of the soil factors showed that the aeration and water perviousness of mixed forest were better than that of pure forest.
林地土壤因子调查的结果是混交林内土壤的通气性、透水性及总孔隙度均好于纯林。
Investigation of the soil factors showed that the aeration and water perviousness of mixed forest were better than that of pure forest.
林地土壤因子调查的结果是混交林内土壤的通气性、透水性及总孔隙度均好于纯林。
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