With the increase of soil depth,daily variation amplitude of soil temperature decreases.
随着土壤深度的增加,地温日变幅逐渐减小。
参考来源 - 辽沈Ⅰ型日光温室地温日变化规律及其谐波模拟验证Autocorrelation function of soil surface height, soil temperature and soil texture are three main kinds of priori knowledge hypothesis in microwave remote sensing. Based on BSM, using ANN as inversion tool, the influence of these three hypotheses is gained.
土壤表面高度相关函数的形式、土壤物理温度和土壤成分是微波遥感中最重要的三类先验知识,论文基于BSM模型,以ANN为反演工具,定量研究这三类先验知识对土壤湿度遥感反演的影响,指出了结合先验知识进行遥感反演的方法是可行的。
参考来源 - 基于双谱散射模型的裸土壤湿度微波遥感反演研究·2,447,543篇论文数据,部分数据来源于NoteExpress
With the increase of soil depth, daily variation amplitude of soil temperature decreases.
随着土壤深度的增加,地温日变幅逐渐减小。
Temperature, especially where low soil temperature may reduce available soil K and its absorption by plants.
温度,尤其是当土温低,可能减少土壤有效钾和植物对其吸收的地方。
Plastic mulch increases soil temperature in the bed which promotes faster crop development and earlier yields.
塑料薄膜覆盖提高苗床的土壤温度,促进作物较快发育并提早成熟。
Experts say warm days, cool nights and a medium soil temperature are the best conditions for growing carrots that taste great.
VOA: special.2009.02.24
Tubers will not form if the soil temperature reaches twenty-seven degrees.
VOA: special.2009.03.10
It also limits temperature changes in the soil.
VOA: special.2009.06.30
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