Significant Characteristics of Precipitation and Ground Temperature Changes During Spring Sowing Period in Tonghua Area from 1991 to 2020
Based on the precipitation and ground temperature data of April and May from 6 meteorological observation stations in Tonghua area of southern Jilin Province from 1991 to 2020,the significant characteristics of regional spring sowing precipitation and ground temperature changes were analyzed.The results showed that during the spring sowing period in the past 30 years,the precipi-tation in Tonghua area showed a general upward trend.In terms of spatial distribution,there are significant characteristics of precipi-tation and ground temperature,that is,more in the south and less in the north,lower in the north and higher in the south.The ground temperature in the spring sowing period showed a slow rising trend in 0 cm,while the ground temperature in 5 cm,10 cm and 20 cm all showed a slow decreasing trend.
agrometeorologyspring sowing timeprecipitationearth temperatureTonghua area
NETL
NSTL
万方数据
