Analysis of soil resistivity characteristics under meteorological conditions in Haikou City

Analysis of soil resistivity in Haikou City for nearly one year, the soil moisture data, and the meteorological data information provided by automatic meteorological station, the results show that soil resistivity of Haikou shows the distribution features of the east side lower than the west; soil resistivity of volcanic ash soil changes in inverse u-shaped curve with the seasons, while the red soil and sand soil resistivity changes with the seasons in u-shaped curve, and soil resistivity of the volcanic ash is not reduced due to the rainy season, instead it increases; soil resistivity of volcanic ash rises with the increase of soil humidity, while the soil resistivity of red soil and sand soil decreases with the increase of soil humidity. The soil resistivity of volcanic ash and red soil decreases with the increase of soil temperature, while the soil resistivity of sand soil rises with the increase of soil temperature. The soil resistivity of volcanic ash and red soil rises with precipitation, while soil resistivity of sand and red soil rises with precipitation. The decline of red soil was most pronounced.