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1 不同土层进入冻结阶段(温度降到0 ℃以下)和融化阶段(温度升到0 ℃以上)的时间统计(mm-dd)
Table 1 Time of different soil layers entering the freezing (<0 ℃) and thawing (>0 ℃) periods (mm-dd)
冻融阶段取样点5 cm10 cm15 cm20 cm30 cm40 cm50 cm70 cm90 cm110 cm
冻结阶段玉米田11-1411-1411-1812-0412-0812-1012-2112-3101-2102-17
水稻田11-1411-1511-1912-0312-0612-0912-1701-0901-20-
融化阶段玉米田03-1603-1703-1903-2203-3004-0104-0204-0503-2902-28
水稻田03-1603-1603-1803-3004-01-----