红壤区花生地土壤温湿度变化及物理环境因素影响

Soil moisture is an important part of crop water management. Soil temperature has a certain influence on migration of soil moisture. This paper analyzed temporal variation characteristics of soil temperature and moisture of peanut field by redundancy analysis method and determined the main environment factors that affects the variation of soil temperature and moisture. The primary conclusions are as follows: The soil moisture of peanut had significant seasonal variations during the monitoring. Although the trends were consistent, different depths had different magnitudes. In addition to precipitation, the soil moisture were affected by temperature, relative humidity, solar radiation and other factors at the time of no precipitation. With the increasing of soil depth, the seasonal trends of soil temperature were more gentle. Different soil layers had different ranges and different extreme time in a day. The impact of environmental factors of soil temperature were similar to soil moisture. The greatest factor was the solar radiation.