不同生态恢复措施下宁南典型草原小气候变化及其与土壤水分的关系

he research aimed to study the influence on microclimate of typical Steppe under different ecological restoration measures and relation between microclimate and soil water content in south Ningxia. Air temperature, air relative humidity and wind speed in aboveground 20cm, and soil temperature, soil surface water content under three ecological restoration measures named parallel ditches, fish-scale and ungrazed grasslands were determined in field. The results showed that air temperature in aboveground 20cm and soil surface water content were highest in parallel ditches, higher in fish-scale pits, and lowest in ungrazed grasslands. Wind speed was opposite to air temperature in every measure. Air relative humidity in aboveground 20cm and soil temperature in the depth of 0-15cm were biggest in ungrazed grasslands, bigger in parallel ditches, and smallest in fish-scale pits. It was negative correlation between 0-20cm soil water content and wind speed in aboveground 20cm, and was positive correlation between soil surface water content and air relative humidity in aboveground 20cm.