|Table of Contents|

Moisture Interaction Between Soil and Atmosphere in Extreme Dry Area(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2010年第02期
Page:
183-188
Research Field:
水资源与环境
Publishing date:

Info

Title:
Moisture Interaction Between Soil and Atmosphere in Extreme Dry Area
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)
Keywords:
moisture;  soil;  atmosphere;  temperature;  extreme dry area;  Mogao Grottoes
PACS:
P412.13;P426;S152.7;P463.23
DOI:
-
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.

References:

[1] 陈梦熊.西北干旱区水文系统的演变与荒漠化[J].地球科学与环境学报,2005,27(1):1-4.
[2] 张 强,卫国安.邻近绿洲的荒漠表层土壤逆湿和对水分“呼吸”过程的分析[J].中国沙漠,2003,23(4):379-384.
[3] 张 强,赵 鸣.绿洲附近荒漠大气逆湿的外场观测和数值模拟[J].气象学报,1999,57(6):729-740.
[4] 马柱国,符淙斌,谢 力,等.土壤湿度和气候变化关系研究中的某些问题[J].地球科学进展,2001,16(4):563-568.
[5] 张 强,黄荣辉,王 胜,等.西北干旱区陆—气相互作用试验(NWC-ALIEX)及其研究进展[J].地球科学进展,2005,20(4):427-441.
[6] 庄艳丽,赵文智.干旱区凝结水研究进展[J].地球科学进展,2008,23(1):31-38
[7] 郭占荣,刘建辉.中国干旱半干旱地区土壤凝结水研究综述[J].干旱区研究,2005,22(4):576-580.
[8] 李红寿,汪万福,郭青林,等.敦煌莫高窟干旱地区水分凝聚的机理分析[J].生态学报,2009,29(6):3198-3205.
[9] Li H S,Wang W F,Zhan H T,et al.New Judgment on the Source of Soil Water in Extremely Dry Zone[J].Acta Ecologica Sinica: International Journal,2010,30(1):1-7.
[10] 李最雄.丝绸之路石窟壁画彩塑保护[M].北京:科学出版社,2005.
[11] 李红寿,汪万福,张国彬,等.影响莫高窟小气候的环境因子对比分析[J].干旱气象,2008,26(2):25-29.
[12] 闵安成,张一平.土壤气态水扩散特征初探[J].西北农业大学学报,1994(2):16-22.
[13] 托马斯·沃纳.沙漠气象学[M].魏文寿,崔彩霞,尚华明,等译.北京:气象出版社,2008.
[14] 朱学愚,钱孝星.地下水水文学[M].北京:中国环境科学出版社,2005.
[15] 曾亦键,万 力,王旭升,等.浅层包气带地温与含水量昼夜动态的实验研究[J].地学前缘,2006,13(1):52-57.
[16] 王积强.关于沙地凝结水测定问题——与蒋瑾等同志商榷[J].干旱区研究,1993,10(4):54-56.

Memo

Memo:
-
Last Update: 2010-06-20