On non-Darcian water flow in peat
(1) The movement of water through mires is a controlling ecological factor, since the transport of solutes by advection can dominate nutrient fluxes, determine the growth rates of survival of plants, and profoundly influence peat redox status and decomposition rates. Modelling and measuring subsurfa...
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| Veröffentlicht in: | The Journal of ecology 1985-01, Vol.73 (2), p.579-584 |
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| container_end_page | 584 |
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| container_issue | 2 |
| container_start_page | 579 |
| container_title | The Journal of ecology |
| container_volume | 73 |
| creator | Hemond, H.F Goldman, J.C |
| description | (1) The movement of water through mires is a controlling ecological factor, since the transport of solutes by advection can dominate nutrient fluxes, determine the growth rates of survival of plants, and profoundly influence peat redox status and decomposition rates. Modelling and measuring subsurface water flows in mires requires a sound understanding of flow processes through peat. (2) The existing literature suggests that such flow violates Darcy's Law in humified peats, and casts doubt on the applicability of existing models for flow through porous media when applied to peatlands. (3) It is shown here that a large component of the reported `non-Darcian' behaviour of peat can be explained by the elastic proporties of peat compression and the effective stress principle. We argue that Darcy's Law remains an appropriate tool for use in wetland hydrologic modelling. |
| doi_str_mv | 10.2307/2260495 |
| format | Article |
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Modelling and measuring subsurface water flows in mires requires a sound understanding of flow processes through peat. (2) The existing literature suggests that such flow violates Darcy's Law in humified peats, and casts doubt on the applicability of existing models for flow through porous media when applied to peatlands. (3) It is shown here that a large component of the reported `non-Darcian' behaviour of peat can be explained by the elastic proporties of peat compression and the effective stress principle. We argue that Darcy's Law remains an appropriate tool for use in wetland hydrologic modelling.</description><identifier>ISSN: 0022-0477</identifier><identifier>EISSN: 1365-2745</identifier><identifier>DOI: 10.2307/2260495</identifier><identifier>CODEN: JECOAB</identifier><language>eng</language><publisher>Oxford: British Ecological Society</publisher><subject>Compressibility ; Compressive stress ; Earth sciences ; Earth, ocean, space ; Equilibrium flow ; Exact sciences and technology ; Hydraulic conductivity ; Hydrological modeling ; Hydrology. 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Modelling and measuring subsurface water flows in mires requires a sound understanding of flow processes through peat. (2) The existing literature suggests that such flow violates Darcy's Law in humified peats, and casts doubt on the applicability of existing models for flow through porous media when applied to peatlands. (3) It is shown here that a large component of the reported `non-Darcian' behaviour of peat can be explained by the elastic proporties of peat compression and the effective stress principle. We argue that Darcy's Law remains an appropriate tool for use in wetland hydrologic modelling.</description><subject>Compressibility</subject><subject>Compressive stress</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Equilibrium flow</subject><subject>Exact sciences and technology</subject><subject>Hydraulic conductivity</subject><subject>Hydrological modeling</subject><subject>Hydrology. Hydrogeology</subject><subject>mathematical models</subject><subject>non-darcian flow</subject><subject>Peat</subject><subject>Porosity</subject><subject>Porous materials</subject><subject>Void ratio</subject><subject>Water flow</subject><issn>0022-0477</issn><issn>1365-2745</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1985</creationdate><recordtype>article</recordtype><sourceid>K30</sourceid><recordid>eNqF0E1LAzEQgOEgCtYq_gRXFD2tTibJZHOU-gmFHrTnJc1mZct2tyZbiv_elRYFD_Y0l4eXmWHslMMNCtC3iATSqD024IJUilqqfTYAQExBan3IjmKcAwBpBQN2PmmSpm3SextcZZtkbTsfkrJu10nVJEtvu2N2UNo6-pPtHLLp48Pb6DkdT55eRnfj1EmkLiWFnnyhqODgtPeF1JaTm5E2hYJMg52Ro17ZWWYLFFLImeOGO3KGSkNiyK423WVoP1Y-dvmiis7XtW18u4o5SspQAeyEvN8nk3J3kYtMSBSihxd_4Lxdhaa_NudoDJAhk_XqeqNcaGMMvsyXoVrY8JlzyL9fn29f38vLbc9GZ-sy2MZV8YcbJFQ6-2Xz2LXhn9rZhpW2ze176EvTVwQuAElK4Fp8Aay0kjQ</recordid><startdate>19850101</startdate><enddate>19850101</enddate><creator>Hemond, H.F</creator><creator>Goldman, J.C</creator><general>British Ecological Society</general><general>Blackwell Science</general><general>Blackwell Scientific Pub</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>FMSEA</scope><scope>GHEHK</scope><scope>JHMDA</scope><scope>K30</scope><scope>PAAUG</scope><scope>PAWHS</scope><scope>PAWZZ</scope><scope>PAXOH</scope><scope>PBHAV</scope><scope>PBQSW</scope><scope>PBYQZ</scope><scope>PCIWU</scope><scope>PCMID</scope><scope>PCZJX</scope><scope>PDGRG</scope><scope>PDWWI</scope><scope>PETMR</scope><scope>PFVGT</scope><scope>PGXDX</scope><scope>PIHIL</scope><scope>PISVA</scope><scope>PJCTQ</scope><scope>PJTMS</scope><scope>PLCHJ</scope><scope>PMHAD</scope><scope>PNQDJ</scope><scope>POUND</scope><scope>PPLAD</scope><scope>PQAPC</scope><scope>PQCAN</scope><scope>PQCMW</scope><scope>PQEME</scope><scope>PQHKH</scope><scope>PQMID</scope><scope>PQNCT</scope><scope>PQNET</scope><scope>PQSCT</scope><scope>PQSET</scope><scope>PSVJG</scope><scope>PVMQY</scope><scope>PZGFC</scope><scope>7QH</scope><scope>7SN</scope><scope>C1K</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>19850101</creationdate><title>On non-Darcian water flow in peat</title><author>Hemond, H.F ; Goldman, J.C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c426t-652e6ed56d10c7eed47a16cb679d50870ab6c6652ab8ad23434bc191c6c96f963</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1985</creationdate><topic>Compressibility</topic><topic>Compressive stress</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Equilibrium flow</topic><topic>Exact sciences and technology</topic><topic>Hydraulic conductivity</topic><topic>Hydrological modeling</topic><topic>Hydrology. Hydrogeology</topic><topic>mathematical models</topic><topic>non-darcian flow</topic><topic>Peat</topic><topic>Porosity</topic><topic>Porous materials</topic><topic>Void ratio</topic><topic>Water flow</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hemond, H.F</creatorcontrib><creatorcontrib>Goldman, J.C</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Periodicals Index Online Segment 05</collection><collection>Periodicals Index Online Segment 08</collection><collection>Periodicals Index Online Segment 31</collection><collection>Periodicals Index Online</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - West</collection><collection>Primary Sources Access (Plan D) - International</collection><collection>Primary Sources Access & Build (Plan A) - MEA</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Midwest</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Northeast</collection><collection>Primary Sources Access (Plan D) - Southeast</collection><collection>Primary Sources Access (Plan D) - North Central</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Southeast</collection><collection>Primary Sources Access (Plan D) - South Central</collection><collection>Primary Sources Access & Build (Plan A) - UK / I</collection><collection>Primary Sources Access (Plan D) - Canada</collection><collection>Primary Sources Access (Plan D) - EMEALA</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - North Central</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - South Central</collection><collection>Primary Sources Access & Build (Plan A) - International</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - International</collection><collection>Primary Sources Access (Plan D) - West</collection><collection>Periodicals Index Online Segments 1-50</collection><collection>Primary Sources Access (Plan D) - APAC</collection><collection>Primary Sources Access (Plan D) - Midwest</collection><collection>Primary Sources Access (Plan D) - MEA</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - Canada</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - UK / I</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - EMEALA</collection><collection>Primary Sources Access & Build (Plan A) - APAC</collection><collection>Primary Sources Access & Build (Plan A) - Canada</collection><collection>Primary Sources Access & Build (Plan A) - West</collection><collection>Primary Sources Access & Build (Plan A) - EMEALA</collection><collection>Primary Sources Access (Plan D) - Northeast</collection><collection>Primary Sources Access & Build (Plan A) - Midwest</collection><collection>Primary Sources Access & Build (Plan A) - North Central</collection><collection>Primary Sources Access & Build (Plan A) - Northeast</collection><collection>Primary Sources Access & Build (Plan A) - South Central</collection><collection>Primary Sources Access & Build (Plan A) - Southeast</collection><collection>Primary Sources Access (Plan D) - UK / I</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - APAC</collection><collection>Primary Sources Access—Foundation Edition (Plan E) - MEA</collection><collection>Aqualine</collection><collection>Ecology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>The Journal of ecology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hemond, H.F</au><au>Goldman, J.C</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>On non-Darcian water flow in peat</atitle><jtitle>The Journal of ecology</jtitle><date>1985-01-01</date><risdate>1985</risdate><volume>73</volume><issue>2</issue><spage>579</spage><epage>584</epage><pages>579-584</pages><issn>0022-0477</issn><eissn>1365-2745</eissn><coden>JECOAB</coden><abstract>(1) The movement of water through mires is a controlling ecological factor, since the transport of solutes by advection can dominate nutrient fluxes, determine the growth rates of survival of plants, and profoundly influence peat redox status and decomposition rates. Modelling and measuring subsurface water flows in mires requires a sound understanding of flow processes through peat. (2) The existing literature suggests that such flow violates Darcy's Law in humified peats, and casts doubt on the applicability of existing models for flow through porous media when applied to peatlands. (3) It is shown here that a large component of the reported `non-Darcian' behaviour of peat can be explained by the elastic proporties of peat compression and the effective stress principle. We argue that Darcy's Law remains an appropriate tool for use in wetland hydrologic modelling.</abstract><cop>Oxford</cop><pub>British Ecological Society</pub><doi>10.2307/2260495</doi><tpages>6</tpages></addata></record> |
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| ispartof | The Journal of ecology, 1985-01, Vol.73 (2), p.579-584 |
| issn | 0022-0477 1365-2745 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_24682500 |
| source | Periodicals Index Online; JSTOR Archive Collection A-Z Listing |
| subjects | Compressibility Compressive stress Earth sciences Earth, ocean, space Equilibrium flow Exact sciences and technology Hydraulic conductivity Hydrological modeling Hydrology. Hydrogeology mathematical models non-darcian flow Peat Porosity Porous materials Void ratio Water flow |
| title | On non-Darcian water flow in peat |
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