The model precision by the soil volumetric moisture content was relative lower.
土壤体积含水量表征土壤水分的模型精度相对要低。
The temperature and volumetric moisture content distribution under exposure of solar radiation are simulated by numerical analysis.
通过数值分析，模拟了太阳辐照条件下土壤内温度和含水率分布曲线。
Respiration rate and soil moisture are positively correlated when soil volumetric water content under 20% and negatively correlated when its content above 20%.
当土壤体积含水量低于20%时土壤呼吸速率与之成正相关；若超过20%后土壤呼吸速率与之成显著负相关。
Respiration rate and soil moisture are positively correlated when soil volumetric water content under 20% and negatively correlated when its content above 20%.
当土壤体积含水量低于20%时土壤呼吸速率与之成正相关；若超过20%后土壤呼吸速率与之成显著负相关。
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