soil bulk density

基本解释

The types of vegetation affect soil water characteristics by increasing the soil organic matter, improving the soil construction, receding soil bulk density and enhancing the soil porosity.
植被类型主要是通过提高土壤有机质含量，改善土壤结构，降低土壤容重和增加土壤毛管孔隙度等土壤物理特性对土壤的蓄水和持水性能产生作用。
The results show that were as follows: As time lasts, underground roots increases, soil bulk density reduces, the first and final infiltration rate and soil anti-scourability have a crescent trend.
结果表明：随着退耕年限的延长，地下根系逐渐增多，土壤容重逐渐减小，初渗率、稳渗率、抗冲性能呈逐渐增大的趋势。
In controlled burning stand, soil bulk density increased by 10%, while soil non-capillary porosity, natural water capacity and capillary moisture capacity decreased by 61%, 48% and 26%, respectively.
炼山迹地土壤容重比杉木林地增加10%，非毛管孔隙、自然含水量和毛管持水量分别下降61%、48%和26%。

土壤容重
Intercropping could reduce soil bulk density, improved soil porosity and moisture content, thereby improved the soil physical properties.
柑橘间作可降低土壤容重,提高土壤孔隙度和水分含量,进而改良土壤物理性质。
土壤养分
The activity of protease and soil bulk density has positive correlation, the amount of microorganism、the other activity of enzyme and soil bulk density has minus correlation. Otherwise, the amount of microor-ganism、the activity of enzyme were positively correlated with soil nutrients.
5通过对土壤微生物量、土壤酶与土壤养分的相关性分析表明,本研究区域土壤微生物数量、土壤酶活性均与土壤pH呈负相关,除蛋白酶与容重呈正相关以外均与容重呈负相关,与土壤养分均呈正相关。
土壤体积质量