中文摘要：

在实测数据基础上,利用数理统计及冗余分析方法（RDA）分析了橘园与花生地土壤温湿度时空变异特征,结果表明：1橘园、花生地土壤湿度均呈现明显的季节变化,且变化趋势基本一致,但是不同深度的变化幅度各有不同;2土壤湿度除了受降水因子影响外,在未降水时段内还受气温、相对湿度、太阳辐射等因子的控制;3土壤温度随着土层深度加深,其季节变化趋势越来越平缓。在一天内,不同土层变化幅度以及出现极值的时间均不同,橘园出现极值的时间比花生地晚半到1 h;4影响土壤温度的环境因子有气温、太阳辐射和相对湿度,其中太阳辐射对花生地土壤温度的影响更大,且土壤表层最易受到气温、太阳辐射和相对湿度的影响。

英文摘要：

Use of the automatic meteorological station and soil temperature and humidity sensor, measures farmland microchmate elements, using redundancy analysis method（RDA） the temporal variation characteristics of soil climate of farmland and orchards were analyzed, the main environment factors were determined that affects the variation of soil temperature and moisture. The primary conclusions are as follows. （1） The soil moisture of orangery and peanut had significant seasonal variations during the test. Although the trends were consistent, different depths had different magnitudes. （2） In addition to precipitation, the soil moisture were affected by temperature, relative humidity, solar radiation and other factors at the time of no precipitation. （3） With the deepening of soil depth, the seasonal trends of soil temperature were more gentle. In one day, different soil layers had different change ranges and different times of extreme,the time of extremum occurrence in the orangery was half an hour later than the time of extremum occurrence in the peanut. （4） The temperature, solar radiation and relative humidity were the environmental factors affecting soil temperature, among them the solar radiation was the greatest impact on peanut soil temperature. Soil surface was most vulnerable to temperature, solar radiation and relative humidity.