农业机械学报2013，Vol.44Issue(3)：104-109,6.DOI:10.6041/j.issn.1000-1298.2013.03.019
季节性冻融期灌水对土壤温度与冻融特性的影响
Effects of Irrigation on Soil Temperature and Soil Freeze-thaw Characteristics during Seasonal Freeze-thaw Period
摘要
Abstract
A series of field irrigation experiments of bare plot (BP) , plastic film mulched plot(PFP) and corn straw mulched plot(CSP) were conducted during the seasonal freeze-thaw period. The effects of irrigation at different stages on soil temperature and soil freeze-thaw characteristics were analyzed. The results showed that the soil temperatures of plots irrigated earlier in freezing period were lower during the freeze-thaw period. The irrigation had a little effect on the soil temperature of BP and PFP in the thawing period, and the irrigation accelerated the thawing of the surface frozen layer. The soil temperatures of CSP irrigated at thawing period were lower and had a smaller variation. The mulching of corn straw went against soil thawing. The irrigation had a great effect on maximum soil freezing depth in the rapid increasing stage of accumulated negative soil temperature at the depth of 5 cm.关键词
灌水/土壤温度/冻结/融化/季节性冻融期Key words
Irrigation/Soil temperature/Freezing/Thawing/Seasonal freeze-thaw period分类
农业科技引用本文复制引用
陈军锋,郑秀清,臧红飞,刘萍,任霞,孙明..季节性冻融期灌水对土壤温度与冻融特性的影响[J].农业机械学报,2013,44(3):104-109,6.基金项目
国家自然科学基金资助项目(40472132)、山西省自然科学基金资助项目(2012011033-2)和太原理工大学2012年校青年基金资助项目(2012L016) （40472132）
