冻融期东北农田土壤温度和水分变化规律及影响因素分析
赵强, 吴从林, 罗平安, 王康, 李红珍, 黄介生

Variation and influencing factors of soil temperature and moisture during freezing and thawing period in a seasonal freezing agricultural area in Northeast China
Qiang ZHAO, Conglin WU, Ping’an LUO, Kang WANG, Hongzhen LI, Jiesheng HUANG
表2 冻融期大气温度与不同土层温度之间相关性
Table 2 Relationships between air and soil temperature at different layers during the freezing and thawing period
5 cm10 cm15 cm20 cm30 cm
玉米田R20.660.600.530.420.28
斜率0.310.270.230.180.13
水稻田R20.740.680.530.450.30
斜率0.370.310.220.180.14