When the relative soil moisture was more than 87.84% at any single growth stage, the SOD activity of a.
在单一阶段土壤相对含水率超过87.84%时，幼树叶片中SOD活性在中前期—生长前期和生长盛期随供水量的增加而增大。
The results exhibited that (1) soil moisture and evapotranspiration were closely relative to vegetation types and rainfall.
研究结果表明：（1）土壤含水量、蒸散量均与植被类型和降雨量密切相关。
SFV was also affected by solar irradiation, air relative humidity, wind speed, and soil moisture.
太阳辐射、空气相对湿度、风速、土壤湿度等因子也有一定影响。
The results of simulation was satisfactory, the relative error is less than 5%. They could be used to monitor soil moisture condition and to guide supplementary irrigation.
模拟结果令人满意，其相对误差小于5 %，可用于旱地地膜春小麦的土壤水分监测和指导补充灌溉。
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 results are shown as follows:1. When the relative vapor pressure reached to 72-75%, capillary moisture condensation began to appear in the tested soil.
结果表明：（1）供试土壤在相对水气压达72—75％时，开始明显呈现出毛管凝聚作用；
The light intensity, air temperature, soil temperature, wind, relative humidity, soil moisture were mainly ecological factors in agroforestry by principal component analysis.
对各小气候因子的主成分分析表明农林复合系统内，太阳光照、气温、土壤温度、风速、相对湿度、土壤含水量因子起着主要作用；
The light intensity, air temperature, soil temperature, wind, relative humidity, soil moisture were mainly ecological factors in agroforestry by principal component analysis.
对各小气候因子的主成分分析表明农林复合系统内，太阳光照、气温、土壤温度、风速、相对湿度、土壤含水量因子起着主要作用；
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