南水北调与水利科技
南水北調與水利科技
남수북조여수리과기
SOUTH-TO-NORTH WATER
2013年
5期
132-135
,共4页
土壤凝结水%华北平原%PVC凝结器%凝结时间%凝结量%温度%相对湿度
土壤凝結水%華北平原%PVC凝結器%凝結時間%凝結量%溫度%相對濕度
토양응결수%화북평원%PVC응결기%응결시간%응결량%온도%상대습도
soil condensation water%North China Plain%PVC condenser%time of coagulation%condensation quantity%temperature%relative humidity
为查明华北平原典型区凝结水发生情况，采用称重法进行了土壤凝结水的初步观测，结果显示：每日14时至次日10时均可观测到凝结水的生成，研究区凝结水大部分来自于大气中的水分，极小部分来源于下层土壤，其主要凝结集中在表层0~5 cm范围内，共占观测深度总凝结水量的50%左右。根据土壤凝结水形成的影响因素分析结果，较低的温度、较高的相对湿度和无风的条件有利于凝结水的生成。
為查明華北平原典型區凝結水髮生情況，採用稱重法進行瞭土壤凝結水的初步觀測，結果顯示：每日14時至次日10時均可觀測到凝結水的生成，研究區凝結水大部分來自于大氣中的水分，極小部分來源于下層土壤，其主要凝結集中在錶層0~5 cm範圍內，共佔觀測深度總凝結水量的50%左右。根據土壤凝結水形成的影響因素分析結果，較低的溫度、較高的相對濕度和無風的條件有利于凝結水的生成。
위사명화북평원전형구응결수발생정황，채용칭중법진행료토양응결수적초보관측，결과현시：매일14시지차일10시균가관측도응결수적생성，연구구응결수대부분래자우대기중적수분，겁소부분래원우하층토양，기주요응결집중재표층0~5 cm범위내，공점관측심도총응결수량적50%좌우。근거토양응결수형성적영향인소분석결과，교저적온도、교고적상대습도화무풍적조건유리우응결수적생성。
In order to ascertain the production of soil condensation water in the typical region of North China Plain, the weighing method was used to observe soil condensation water in the study area. The results indicated that the formation of soil condensa-tion water can be observed from 2:00 pm to 10:00 am of the next day. Most of soil condensation water originated from the air vapor and only a smal amount from soil water, of which about 50% of the total condensation water gathered in the range of 0 to 5 cm belowthe ground surface. According to the analysis results of impact factors for the formation of soil condensation water, high relative humidity, lowatmospheric temperature, and lowwind speed were favorable for the format ion of the soil condensa-tion water.
