Process and patterns of duff consumption in the mixedwood boreal forest
Postfire tree recruitment in the boreal forest is restricted to patches from which the duff (organic layer) has been removed by fire. Duff consumption occurs by smoldering combustion, propagation of which is determined by bulk density, moisture content, and depth. This study investigated interaction...
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| Veröffentlicht in: | Canadian journal of forest research 2002-07, Vol.32 (7), p.1285-1295 |
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| creator | Miyanishi, K Johnson, E.A |
| description | Postfire tree recruitment in the boreal forest is restricted to patches from which the duff (organic layer) has been removed by fire. Duff consumption occurs by smoldering combustion, propagation of which is determined by bulk density, moisture content, and depth. This study investigated interactions among these factors, their spatial distribution, and spatial patterns of duff consumption in two wildfires. A hypothesized positive relationship between moisture content and depth was supported by a laboratory study. Duff characteristic data were collected from two burns and comparable unburned areas of mixedwood forest in western Canada to describe and explain patterns of duff consumption within and between top-slope Pinus banksiana Lamb.-Picea mariana (Mill.) BSP stands and lower slope pure stands of Picea mariana on glaciofluvial hillslopes. In unburned stands, bulk density did not differ significantly between stands, while depths were significantly greater in Picea stands. With moist duff, consumption was significantly greater in Picea than in Pinus-Picea stands as depth limited smoldering in the thin duff of Pinus-Picea stands. With dry duff, smoldering was propagated regardless of depth resulting in no differences between stand types. The spatial correlation between burned patches and fire-killed trees was explained by within-stand spatial variation in duff moisture due to precipitation interception by tree crowns. |
| doi_str_mv | 10.1139/x02-051 |
| format | Article |
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Duff consumption occurs by smoldering combustion, propagation of which is determined by bulk density, moisture content, and depth. This study investigated interactions among these factors, their spatial distribution, and spatial patterns of duff consumption in two wildfires. A hypothesized positive relationship between moisture content and depth was supported by a laboratory study. Duff characteristic data were collected from two burns and comparable unburned areas of mixedwood forest in western Canada to describe and explain patterns of duff consumption within and between top-slope Pinus banksiana Lamb.-Picea mariana (Mill.) BSP stands and lower slope pure stands of Picea mariana on glaciofluvial hillslopes. In unburned stands, bulk density did not differ significantly between stands, while depths were significantly greater in Picea stands. With moist duff, consumption was significantly greater in Picea than in Pinus-Picea stands as depth limited smoldering in the thin duff of Pinus-Picea stands. With dry duff, smoldering was propagated regardless of depth resulting in no differences between stand types. The spatial correlation between burned patches and fire-killed trees was explained by within-stand spatial variation in duff moisture due to precipitation interception by tree crowns.</description><identifier>ISSN: 0045-5067</identifier><identifier>EISSN: 1208-6037</identifier><identifier>DOI: 10.1139/x02-051</identifier><identifier>CODEN: CJFRAR</identifier><language>eng</language><publisher>Ottawa, Canada: NRC Research Press</publisher><subject>Biological and medical sciences ; Boreal forests ; bulk density ; chemical composition ; depth ; Environmental aspects ; Forest & brush fires ; forest litter ; Forestry ; Fundamental and applied biological sciences. Psychology ; mixed forests ; Moisture content ; Picea mariana ; Pinus banksiana ; soil water content ; Spatial distribution ; Trees ; Wildfires ; wildland fire management</subject><ispartof>Canadian journal of forest research, 2002-07, Vol.32 (7), p.1285-1295</ispartof><rights>2003 INIST-CNRS</rights><rights>Copyright National Research Council of Canada Jul 2002</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c370t-b0ae606651794a622a0d5372f4bf0a9c70869eda49c92abc4830af270d45abeb3</citedby><cites>FETCH-LOGICAL-c370t-b0ae606651794a622a0d5372f4bf0a9c70869eda49c92abc4830af270d45abeb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=13831285$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Miyanishi, K</creatorcontrib><creatorcontrib>Johnson, E.A</creatorcontrib><title>Process and patterns of duff consumption in the mixedwood boreal forest</title><title>Canadian journal of forest research</title><addtitle>Revue canadienne de recherche forestière</addtitle><description>Postfire tree recruitment in the boreal forest is restricted to patches from which the duff (organic layer) has been removed by fire. Duff consumption occurs by smoldering combustion, propagation of which is determined by bulk density, moisture content, and depth. This study investigated interactions among these factors, their spatial distribution, and spatial patterns of duff consumption in two wildfires. A hypothesized positive relationship between moisture content and depth was supported by a laboratory study. Duff characteristic data were collected from two burns and comparable unburned areas of mixedwood forest in western Canada to describe and explain patterns of duff consumption within and between top-slope Pinus banksiana Lamb.-Picea mariana (Mill.) BSP stands and lower slope pure stands of Picea mariana on glaciofluvial hillslopes. In unburned stands, bulk density did not differ significantly between stands, while depths were significantly greater in Picea stands. With moist duff, consumption was significantly greater in Picea than in Pinus-Picea stands as depth limited smoldering in the thin duff of Pinus-Picea stands. With dry duff, smoldering was propagated regardless of depth resulting in no differences between stand types. The spatial correlation between burned patches and fire-killed trees was explained by within-stand spatial variation in duff moisture due to precipitation interception by tree crowns.</description><subject>Biological and medical sciences</subject><subject>Boreal forests</subject><subject>bulk density</subject><subject>chemical composition</subject><subject>depth</subject><subject>Environmental aspects</subject><subject>Forest & brush fires</subject><subject>forest litter</subject><subject>Forestry</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>mixed forests</subject><subject>Moisture content</subject><subject>Picea mariana</subject><subject>Pinus banksiana</subject><subject>soil water content</subject><subject>Spatial distribution</subject><subject>Trees</subject><subject>Wildfires</subject><subject>wildland fire management</subject><issn>0045-5067</issn><issn>1208-6037</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>BEC</sourceid><sourceid>BENPR</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp10c1KAzEUBeAgCtYqPoJBUEEYvUkm87OUolUoKGjX4U4msVPayZhMsb69KS26EFd383EOOSHklMENY6K8XQNPQLI9MmAciiQDke-TAUAqEwlZfkiOQpgDgMgEDMj4xTttQqDY1rTDvje-DdRZWq-spdq1YbXs-sa1tGlpPzN02axN_elcTSvnDS6ojSf0x-TA4iKYk90dkunD_dvoMZk8j59Gd5NEixz6pAI0GWSZZHmZYsY5Qi1Fzm1aWcBS51BkpakxLXXJsdJpIQAtz6FOJVamEkNyvs3tvPtYxWI1dyvfxkrFBUguBc8jutoi7V0I3ljV-WaJ_ksxUJuRVBxJxZGivNjFYdC4sB5b3YRfLgrBeCGju9y61uv4XINez37ULkx1tY3w-n_4t_1siy06he8-Nk9fOTABvBSbLxLfimiKbw</recordid><startdate>20020701</startdate><enddate>20020701</enddate><creator>Miyanishi, K</creator><creator>Johnson, E.A</creator><general>NRC Research Press</general><general>National Research Council of Canada</general><general>Canadian Science Publishing NRC Research Press</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7RQ</scope><scope>7SN</scope><scope>7SS</scope><scope>7T7</scope><scope>7X2</scope><scope>7XB</scope><scope>88I</scope><scope>8AF</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FK</scope><scope>8FQ</scope><scope>8FV</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M0K</scope><scope>M2O</scope><scope>M2P</scope><scope>M3G</scope><scope>M7S</scope><scope>MBDVC</scope><scope>P64</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>RC3</scope><scope>U9A</scope></search><sort><creationdate>20020701</creationdate><title>Process and patterns of duff consumption in the mixedwood boreal forest</title><author>Miyanishi, K ; Johnson, E.A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c370t-b0ae606651794a622a0d5372f4bf0a9c70869eda49c92abc4830af270d45abeb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Biological and medical sciences</topic><topic>Boreal forests</topic><topic>bulk density</topic><topic>chemical composition</topic><topic>depth</topic><topic>Environmental aspects</topic><topic>Forest & brush fires</topic><topic>forest litter</topic><topic>Forestry</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>mixed forests</topic><topic>Moisture content</topic><topic>Picea mariana</topic><topic>Pinus banksiana</topic><topic>soil water content</topic><topic>Spatial distribution</topic><topic>Trees</topic><topic>Wildfires</topic><topic>wildland fire management</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Miyanishi, K</creatorcontrib><creatorcontrib>Johnson, E.A</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Career & Technical Education Database</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Agricultural Science Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>STEM Database</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Canadian Business & Current Affairs Database</collection><collection>Canadian Business & Current Affairs Database (Alumni Edition)</collection><collection>Research Library (Alumni Edition)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>eLibrary</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Agricultural Science Database</collection><collection>Research Library</collection><collection>Science Database</collection><collection>CBCA Reference & Current Events</collection><collection>Engineering Database</collection><collection>Research Library (Corporate)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environmental Science Database</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>Environmental Science Collection</collection><collection>ProQuest Central Basic</collection><collection>Genetics Abstracts</collection><jtitle>Canadian journal of forest research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Miyanishi, K</au><au>Johnson, E.A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Process and patterns of duff consumption in the mixedwood boreal forest</atitle><jtitle>Canadian journal of forest research</jtitle><addtitle>Revue canadienne de recherche forestière</addtitle><date>2002-07-01</date><risdate>2002</risdate><volume>32</volume><issue>7</issue><spage>1285</spage><epage>1295</epage><pages>1285-1295</pages><issn>0045-5067</issn><eissn>1208-6037</eissn><coden>CJFRAR</coden><abstract>Postfire tree recruitment in the boreal forest is restricted to patches from which the duff (organic layer) has been removed by fire. Duff consumption occurs by smoldering combustion, propagation of which is determined by bulk density, moisture content, and depth. This study investigated interactions among these factors, their spatial distribution, and spatial patterns of duff consumption in two wildfires. A hypothesized positive relationship between moisture content and depth was supported by a laboratory study. Duff characteristic data were collected from two burns and comparable unburned areas of mixedwood forest in western Canada to describe and explain patterns of duff consumption within and between top-slope Pinus banksiana Lamb.-Picea mariana (Mill.) BSP stands and lower slope pure stands of Picea mariana on glaciofluvial hillslopes. In unburned stands, bulk density did not differ significantly between stands, while depths were significantly greater in Picea stands. With moist duff, consumption was significantly greater in Picea than in Pinus-Picea stands as depth limited smoldering in the thin duff of Pinus-Picea stands. With dry duff, smoldering was propagated regardless of depth resulting in no differences between stand types. The spatial correlation between burned patches and fire-killed trees was explained by within-stand spatial variation in duff moisture due to precipitation interception by tree crowns.</abstract><cop>Ottawa, Canada</cop><pub>NRC Research Press</pub><doi>10.1139/x02-051</doi><tpages>11</tpages></addata></record> |
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| ispartof | Canadian journal of forest research, 2002-07, Vol.32 (7), p.1285-1295 |
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| source | Alma/SFX Local Collection |
| subjects | Biological and medical sciences Boreal forests bulk density chemical composition depth Environmental aspects Forest & brush fires forest litter Forestry Fundamental and applied biological sciences. Psychology mixed forests Moisture content Picea mariana Pinus banksiana soil water content Spatial distribution Trees Wildfires wildland fire management |
| title | Process and patterns of duff consumption in the mixedwood boreal forest |
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