| 摘要: |
| 为探究土壤表层的含水率随土壤温度变化的规律，以呼和浩特地区的日光温室室内土壤为研究对象，利用土壤水分-温度传感器测试土壤含水率和土壤温度，采用Gaussian函数多峰拟合和线性拟合方法对土壤温度与含水率的关系进行拟合分析。结果表明：在3个试验区域的不同深度土层内，土壤含水率随土壤温度的变化均呈现线性变化规律，且越接近土壤表层，线性关系越显著。通过拟合方程得到的含水率计算值与实测值相对误差小于5%。本研究对日光温室内土壤环境的监测与控制具有指导意义。 |
| 关键词: 日光温室 土壤含水率 土壤温度 线性拟合 |
| DOI：10.11841/j.issn.1007-4333.2019.03.13 |
| 投稿时间：2018-04-16 |
| 基金项目:国家自然科学基金项目（61663038） |
|
| Effect of soil temperature on soil moisture content in solar greenhouse |
|
Saiyinchaogetu1, MA Wenjuan2, Tana1
|
| (1.College of Mechanical and Electrical Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China;2.Academy of Army Armoured Force, Beijing 100071, China) |
| Abstract: |
| To investigate the correlation between the soil moisture and temperature of topsoil,the moisture and temperature changes of soil were measured in the solar greenhouse located in Hohhot.The relationship between soil temperature and moisture content was analyzed by Gaussian function multi-peak fitting and linear fitting.The results showed that the soil moisture content changed linearly with soil temperature in three test areas on different soil layers.Between soil temperature and moisture content,the closer the depth of soil to the soil surface,the more significant of the linear relationship.The relative error of the calculated soil moisture content with the actual data was less than 5%.This study provided guiding significance for monitoring and controlling soil environment in solar greenhouse. |
| Key words: solar greenhouse soil moisture content soil temperature linear fitting |
