|本期目录/Table of Contents|

[1]李红寿,汪万福,张国彬,等.极干旱地区土壤与大气水分的相互影响[J].地球科学与环境学报,2010,32(02):183-188.
　LI Hong-shou,WANG Wan-fu,ZHANG Guo-bin,et al.Moisture Interaction Between Soil and Atmosphere in Extreme Dry Area[J].Journal of Earth Sciences and Environment,2010,32(02):183-188.
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极干旱地区土壤与大气水分的相互影响(PDF)
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第32卷
期数:
2010年第02期
页码:
183-188
栏目:
水资源与环境
出版日期:
2010-06-20

文章信息/Info

Title:
Moisture Interaction Between Soil and Atmosphere in Extreme Dry Area
文章编号:
1672-6561(2010)02-0183-06
作者:
李红寿1; 2; 汪万福1; 2; 3; 张国彬1; 2; 邱飞1; 詹鸿涛1
(1.敦煌研究院 保护研究所,甘肃 敦煌736200; 2.古代壁画保护国家文物局重点科研基地, 甘肃 敦煌 736200; 3.兰州大学 生命科学学院,甘肃 兰州 730000)
Author(s):
LI Hong-shou1; 2;  WANG Wan-fu1; 2; 3;  ZHANG Guo-bin1; 2;  QIU Fei1;  ZHAN Hong-tao1
(1.Institute of Conservation, Dunhuang Academy, Dunhuang 736200, Gansu, China; 2.Key ScientificResearch Base of Conservation for Ancient Mural of State Administration of Cultural Heritage, Dunhuang736200, Gansu, China; 3.School of Life Sciences, Lanzhou University, Lanzhou 730000, Gansu, China)
关键词:
水分; 土壤; 大气; 温度; 极干旱地区; 莫高窟
Keywords:
moisture;  soil;  atmosphere;  temperature;  extreme dry area;  Mogao Grottoes
分类号:
P412.13;P426;S152.7;P463.23
DOI:
-
文献标志码:
A
摘要:
基于建立在莫高窟窟顶的密闭拱棚,通过监测棚内凝结水量和空气温湿度,对极干旱地区典型极干旱气候条件下土壤与大气水分的相互影响进行综合分析。棚内凝结水量和空气温湿度的监测结果表明,在热动力作用下存在地下水分向大气输送的过程,其原因主要是在温度作用下土壤结合水分的分解蒸发与土壤盐分的吸湿吸附的交替作用。这也是形成所谓“土壤凝结水分”与“土壤水分呼吸”的根源。当温度升高时,土壤结合水分分解蒸发“呼出”水分,当温度降低时土壤盐分吸湿吸附,“吸入”大气水分,形成土壤与大气不对称水分交流。称质量实验表明:土壤水分的变化与空气温度的变化完全对应;有深层水分支持的土壤吸收大气水分的能力相对较差。极干旱地区土壤与大气水分的相互影响研究结果能为莫高窟珍贵文物的保护提供参考。
Abstract:
Based on airproof plastic greenhouse which built on the top of Mogao Grottoes and was used to monitor condensation water and air temperature and humidity, the moisture interaction between soil and atmosphere under the condition of classic extreme dry climate in extreme dry area was discussed. The measuring result of condensation water and air temperature and humidity in greenhouse showed that the groundwater was transferred to atmosphere under the influence of thermal power, and the main reason was the alternation of decomposition of bound water and adsorption of soil salinity under the action of temperature. It also caused “soil condensing water” and “soil moisture respiration”. Bound water would “breath out” moisture when temperature rose, soil salinity would absorb and “inbreathe” moisture from atmosphere when temperature dropped, and it became unsymmetrical moisture interaction between soil and atmosphere. The weighing experiments indicated that changes of atmosphere temperature and bound water were unanimous; the soil supported by deep phreatic water absorbed atmosphere water slowly. The study on moisture interaction between soil and atmosphere in extreme dry area could provide some references for the protection of rare cultural relics in Mogao Grottoes.

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备注/Memo

备注/Memo:
收稿日期:2009-10-24
基金项目: 国家自然科学基金项目(40940005)
作者简介: 李红寿(1970-),男,甘肃秦安人,馆员,从事干旱区环境和文物保护等研究。E-mail:dhlhs69@163.com
更新日期/Last Update: 2010-06-20