Comparison Studies on Dew Condensation of Different Developmental Artificial Crusts in Hopq Desert

RAO Ben-qiang; WU Yi-wen; LI Hua

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Comparison Studies on Dew Condensation of Different Developmental Artificial Crusts in Hopq Desert

更新时间：2024-11-07

- Comparison Studies on Dew Condensation of Different Developmental Artificial Crusts in Hopq Desert
- Vol. 25, Issue 6, (2011)
- 作者机构：
  
  1. 信阳师范学院生命科学学院
  2. 中国科学院水生生物研究所淡水生态与生物技术国家重点实验室
  3. 中国科学院研究生院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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RAO Ben-qiang, WU Yi-wen, LI Hua. Comparison Studies on Dew Condensation of Different Developmental Artificial Crusts in Hopq Desert[J]. 2011, 25(6).
DOI：

RAO Ben-qiang, WU Yi-wen, LI Hua. Comparison Studies on Dew Condensation of Different Developmental Artificial Crusts in Hopq Desert[J]. 2011, 25(6). DOI：

摘要

露水的形成是干旱、半干旱地区生态系统中重要的环境因子。以库布齐沙漠不同发育类型的人工结皮为研究对象

通过每天野外跟踪观测人工结皮的露水凝结量

比较人工结皮露水凝结量的大小及其凝结能力的差异性。试验以人工蓝藻结皮(ACC)、人工藻结皮(AAC)、人工苔藓结皮(AMC)以及自然苔藓结皮(NMC)和流沙(SS)为材料

并以绒布-平板露水测定法(CPM)为参照

试验时间为42d。结果表明

CPM法测定的日平均露水凝结量为0.02～0.35mm

ACC露水凝结量为0.012～0.191mm

AAC为0.032～0.230mm

AMC为0.048～0.274mm

NMC为0.056～0.304mm

SS为0.003～0.083mm。露水凝结量随结皮的发育状况而存在显著差异

露水凝结量大小依次为NMC>AMC>AAC>ACC>SS。结果还发现

人工结皮的形成明显促进了荒漠地表对露水的吸收和保持

结皮能够比沙表面凝结更多的露水

且结皮的露水干化过程比沙表面更慢。推测结皮藻丝体的发育及其胞外分泌物是结皮凝结较多露水的重要原因

同时依赖于结皮表面的微气候环境。本研究揭示了露水在维系结皮生存中的生态学意义

表明人工结皮具有较好的水...

Abstract

Dew is one of important environmental factors for desert ecological system in semiarid and arid regions.In this study

the artificial crusts were selected for experimental objects to compare differences of dew condensation amounts between different artificial crusts by means of daily detection for dew condensation on artificial crust surfaces.Concerning the experiment

artificial cyanobacterial crusts(ACC)

artificial algal crusts(AAC)

artificial moss crusts(AMC)

and natural moss crusts(NMC) as well as shiftin...

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