Dew formation and activity of biological crusts

M. Veste, B.G. Heusinkveld, S.M. Berkowicz, S.W. Breckle, T. Littmann, A.F.G. Jacobs

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

Abstract

Biological soil crusts are prominent in many drylands and can be found in diverse parts of the globe including the Atacama desert, Chile, the Namib desert, Namibia, the Succulent-Karoo desert, South Africa, and the Negev desert, Israel. Because precipitation can be negligible in deserts ¿ the Atacama desert being almost rain-free ¿ or restricted to infrequent rains during short rainfall seasons, atmospheric moisture in the form of dew and/or fog can be a major, regular supplier of water for cryptogams. To study in situ microclimatic boundary conditions of dew formation and/or influence on biological crust activity in a hot desert, a variety of intensive field experiments were conducted by the authors in the Haluza sand dune region, North- Western Negev desert. Microclimatic parameters such as the radiative energy budget, specific humidity, or difference between air temperature and dewpoint are needed to determine the onset and termination of lichen photosynthetic activity. In the present paper, the physiological activation of soil lichens was measured by chlorophyll fluorescence (as used by Schroeter et al. 1992; Leisner et al. 1997). For the biological sand crusts, general meteorological stations were established on a dune slope or along a transect, in addition to intensive field campaigns where a variety of meteorological sensors were operated in parallel with manual and automatic microlysimeter dew measurements of both physical and biological crusts. The purpose focused on acquiring detailed information on the dew formation and drying process and dew quantities that could condense overnight. Full details regarding the experiments and instrumentation may be found in Jacobs et al. (1999, 2000a), Veste et al. (2001), Heusinkveld et al. (2006) and Littmann and Veste (2006).
Original languageEnglish
Title of host publicationArid Dune Ecosystems. The Nizzana Sands in the Negev Desert
EditorsSiegmar-W. Breckle, Aaron Yair, Maik Veste
Place of PublicationHeidelberg
Pages305-318
Number of pages475
DOIs
Publication statusPublished - 2008

Publication series

NameEcological Studies
PublisherSpringer Berlin
Number200

Fingerprint

dew
desert
crust
lichen
dune
soil crust
atmospheric moisture
fog
energy budget
instrumentation
humidity
chlorophyll
fluorescence
boundary condition
transect
air temperature
sensor
rainfall
sand

Cite this

Veste, M., Heusinkveld, B. G., Berkowicz, S. M., Breckle, S. W., Littmann, T., & Jacobs, A. F. G. (2008). Dew formation and activity of biological crusts. In S-W. Breckle, A. Yair, & M. Veste (Eds.), Arid Dune Ecosystems. The Nizzana Sands in the Negev Desert (pp. 305-318). (Ecological Studies; No. 200). Heidelberg. https://doi.org/10.1007/978-3-540-75498-5_21
Veste, M. ; Heusinkveld, B.G. ; Berkowicz, S.M. ; Breckle, S.W. ; Littmann, T. ; Jacobs, A.F.G. / Dew formation and activity of biological crusts. Arid Dune Ecosystems. The Nizzana Sands in the Negev Desert. editor / Siegmar-W. Breckle ; Aaron Yair ; Maik Veste. Heidelberg, 2008. pp. 305-318 (Ecological Studies; 200).
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Veste, M, Heusinkveld, BG, Berkowicz, SM, Breckle, SW, Littmann, T & Jacobs, AFG 2008, Dew formation and activity of biological crusts. in S-W Breckle, A Yair & M Veste (eds), Arid Dune Ecosystems. The Nizzana Sands in the Negev Desert. Ecological Studies, no. 200, Heidelberg, pp. 305-318. https://doi.org/10.1007/978-3-540-75498-5_21

Dew formation and activity of biological crusts. / Veste, M.; Heusinkveld, B.G.; Berkowicz, S.M.; Breckle, S.W.; Littmann, T.; Jacobs, A.F.G.

Arid Dune Ecosystems. The Nizzana Sands in the Negev Desert. ed. / Siegmar-W. Breckle; Aaron Yair; Maik Veste. Heidelberg, 2008. p. 305-318 (Ecological Studies; No. 200).

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

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T1 - Dew formation and activity of biological crusts

AU - Veste, M.

AU - Heusinkveld, B.G.

AU - Berkowicz, S.M.

AU - Breckle, S.W.

AU - Littmann, T.

AU - Jacobs, A.F.G.

PY - 2008

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N2 - Biological soil crusts are prominent in many drylands and can be found in diverse parts of the globe including the Atacama desert, Chile, the Namib desert, Namibia, the Succulent-Karoo desert, South Africa, and the Negev desert, Israel. Because precipitation can be negligible in deserts ¿ the Atacama desert being almost rain-free ¿ or restricted to infrequent rains during short rainfall seasons, atmospheric moisture in the form of dew and/or fog can be a major, regular supplier of water for cryptogams. To study in situ microclimatic boundary conditions of dew formation and/or influence on biological crust activity in a hot desert, a variety of intensive field experiments were conducted by the authors in the Haluza sand dune region, North- Western Negev desert. Microclimatic parameters such as the radiative energy budget, specific humidity, or difference between air temperature and dewpoint are needed to determine the onset and termination of lichen photosynthetic activity. In the present paper, the physiological activation of soil lichens was measured by chlorophyll fluorescence (as used by Schroeter et al. 1992; Leisner et al. 1997). For the biological sand crusts, general meteorological stations were established on a dune slope or along a transect, in addition to intensive field campaigns where a variety of meteorological sensors were operated in parallel with manual and automatic microlysimeter dew measurements of both physical and biological crusts. The purpose focused on acquiring detailed information on the dew formation and drying process and dew quantities that could condense overnight. Full details regarding the experiments and instrumentation may be found in Jacobs et al. (1999, 2000a), Veste et al. (2001), Heusinkveld et al. (2006) and Littmann and Veste (2006).

AB - Biological soil crusts are prominent in many drylands and can be found in diverse parts of the globe including the Atacama desert, Chile, the Namib desert, Namibia, the Succulent-Karoo desert, South Africa, and the Negev desert, Israel. Because precipitation can be negligible in deserts ¿ the Atacama desert being almost rain-free ¿ or restricted to infrequent rains during short rainfall seasons, atmospheric moisture in the form of dew and/or fog can be a major, regular supplier of water for cryptogams. To study in situ microclimatic boundary conditions of dew formation and/or influence on biological crust activity in a hot desert, a variety of intensive field experiments were conducted by the authors in the Haluza sand dune region, North- Western Negev desert. Microclimatic parameters such as the radiative energy budget, specific humidity, or difference between air temperature and dewpoint are needed to determine the onset and termination of lichen photosynthetic activity. In the present paper, the physiological activation of soil lichens was measured by chlorophyll fluorescence (as used by Schroeter et al. 1992; Leisner et al. 1997). For the biological sand crusts, general meteorological stations were established on a dune slope or along a transect, in addition to intensive field campaigns where a variety of meteorological sensors were operated in parallel with manual and automatic microlysimeter dew measurements of both physical and biological crusts. The purpose focused on acquiring detailed information on the dew formation and drying process and dew quantities that could condense overnight. Full details regarding the experiments and instrumentation may be found in Jacobs et al. (1999, 2000a), Veste et al. (2001), Heusinkveld et al. (2006) and Littmann and Veste (2006).

U2 - 10.1007/978-3-540-75498-5_21

DO - 10.1007/978-3-540-75498-5_21

M3 - Chapter

SN - 9783540754978

T3 - Ecological Studies

SP - 305

EP - 318

BT - Arid Dune Ecosystems. The Nizzana Sands in the Negev Desert

A2 - Breckle, Siegmar-W.

A2 - Yair, Aaron

A2 - Veste, Maik

CY - Heidelberg

ER -

Veste M, Heusinkveld BG, Berkowicz SM, Breckle SW, Littmann T, Jacobs AFG. Dew formation and activity of biological crusts. In Breckle S-W, Yair A, Veste M, editors, Arid Dune Ecosystems. The Nizzana Sands in the Negev Desert. Heidelberg. 2008. p. 305-318. (Ecological Studies; 200). https://doi.org/10.1007/978-3-540-75498-5_21