水力发电2018，Vol.44Issue(3)：81-85,88,6.
冻融期蓄水坑灌灌水量对土壤温度时空变化的影响
Effects of Irrigation Amount of Water Storage Pit on Soil Temperature Distribution in Freezing and Thawing Period
摘要
Abstract
In order to reveal the effects of different irrigation amount of water storage pit on soil temperature distribution in winter,the HZR-8T temperature sensor is used to observe soil temperature in different vertical and radial positions of soil profile.The results show that,(a) the freezing depth decreases and the stable freezing period shortens with the increase of irrigation amount;(b) the soil temperature decreases first and then rise with time,and the temperature fluctuation tends to decrease with the increases of soil depth and irrigation amount;(c) the temperature of surface soil inereases with the increase of irrigation amount in freezing process and decreases in thawing process;(d) the temperature distribution increases with the increase of soil depth along the vertical direction of soil profile,and increases first and then decrease with the increase of distance from the pit;(e) the low temperature range of pit wall in freezing process and the high temperature range of soil below 40 cm depth in thawing process are all narrowed with the increase of irrigation amount.关键词
冻融期/蓄水坑灌/灌水量/土壤温度Key words
freezing-thawing period, water storage pit irrigation/irrigation amount/soil temperature分类
农业科技引用本文复制引用
曹鹭,郭向红,孙西欢,马娟娟,雷涛,郑利剑,王晓磊..冻融期蓄水坑灌灌水量对土壤温度时空变化的影响[J].水力发电,2018,44(3):81-85,88,6.基金项目
国家自然科学基金资助项目(51579168,51249002) （51579168,51249002）
山西省自然科学基金资助项目(201601D011053) （201601D011053）
山西省科技攻关项目(20140311016-6) （20140311016-6）
