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Decomposition of emergent macrophyte roots and rhizomes in a northern prairie marsh

Identifieur interne : 001374 ( Istex/Corpus ); précédent : 001373; suivant : 001375

Decomposition of emergent macrophyte roots and rhizomes in a northern prairie marsh

Auteurs : Dale A. Wrubleski ; Henry R. Murkin ; Arnold G. Van Der Valk ; Jeffrey W. Nelson

Source :

RBID : ISTEX:CB4D36B5E5CEFE651D319D9367C1AA40958A02EB

Abstract

Dry mass, nitrogen and phosphorus content in belowground litter of four emergent macrophytes (Typha glauca Godr., Phragmites australis (Cav.) Trin., Scolochloa festucacea (Willd.) Link and Scirpus lacustris L.) were followed for 1.2 years in a series of experimental marshes, Delta Marsh, Manitoba. Litter bags containing roots and rhizome materials of each species were buried in unflooded soil, or soil flooded at three water depths (1–30, 31–60, > 60 cm). There were few differences in dry mass loss in unflooded or flooded soils, and depth of flooding also had little effect on decomposition rates. In the flooded sites, Scolochloa and Phragmites roots lost more mass (48.9–63.8% and 59.2–85.5%, respectively) after 112 days than Typha and Scirpus (36.3–43.6 and 37.0–47.2%, respectively). These differences continued through to the end of the study, except in the shallow sites where Scirpus roots lost more mass and had comparable mass remaining as Scolochloa and Phragmites. In the unflooded sites, there was little difference between species. All litters lost nitrogen (22.9–90.0%) and phosphorus (46.3–92.7%) during the first 112 days, then levels tended to remain constant. Decay rates for our belowground root and rhizome litters were comparable to published literature values for aboveground shoot litter of the same species, except for Phragmites roots and rhizomes which decomposed at a faster rate (−k = 0.0014−0.0032) than shoots (−k = 0.0003−0.0007, [van der Valk, A.G., Rhymer, J.M., Murkin, H.R., 1991. Flooding and the decomposition of litter of four emergent plant species in a prairie wetland. Wetlands 11, 1–16]).

Url:
DOI: 10.1016/S0304-3770(97)00016-8

Links to Exploration step

ISTEX:CB4D36B5E5CEFE651D319D9367C1AA40958A02EB

Le document en format XML

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<div type="abstract" xml:lang="en">Dry mass, nitrogen and phosphorus content in belowground litter of four emergent macrophytes (Typha glauca Godr., Phragmites australis (Cav.) Trin., Scolochloa festucacea (Willd.) Link and Scirpus lacustris L.) were followed for 1.2 years in a series of experimental marshes, Delta Marsh, Manitoba. Litter bags containing roots and rhizome materials of each species were buried in unflooded soil, or soil flooded at three water depths (1–30, 31–60, > 60 cm). There were few differences in dry mass loss in unflooded or flooded soils, and depth of flooding also had little effect on decomposition rates. In the flooded sites, Scolochloa and Phragmites roots lost more mass (48.9–63.8% and 59.2–85.5%, respectively) after 112 days than Typha and Scirpus (36.3–43.6 and 37.0–47.2%, respectively). These differences continued through to the end of the study, except in the shallow sites where Scirpus roots lost more mass and had comparable mass remaining as Scolochloa and Phragmites. In the unflooded sites, there was little difference between species. All litters lost nitrogen (22.9–90.0%) and phosphorus (46.3–92.7%) during the first 112 days, then levels tended to remain constant. Decay rates for our belowground root and rhizome litters were comparable to published literature values for aboveground shoot litter of the same species, except for Phragmites roots and rhizomes which decomposed at a faster rate (−k = 0.0014−0.0032) than shoots (−k = 0.0003−0.0007, [van der Valk, A.G., Rhymer, J.M., Murkin, H.R., 1991. Flooding and the decomposition of litter of four emergent plant species in a prairie wetland. Wetlands 11, 1–16]).</div>
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<ce:simple-para>Dry mass, nitrogen and phosphorus content in belowground litter of four emergent macrophytes (
<ce:italic>Typha glauca</ce:italic>
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<ce:italic>Scolochloa festucacea</ce:italic>
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<ce:italic>Scirpus lacustris</ce:italic>
L.) were followed for 1.2 years in a series of experimental marshes, Delta Marsh, Manitoba. Litter bags containing roots and rhizome materials of each species were buried in unflooded soil, or soil flooded at three water depths (1–30, 31–60, > 60 cm). There were few differences in dry mass loss in unflooded or flooded soils, and depth of flooding also had little effect on decomposition rates. In the flooded sites,
<ce:italic>Scolochloa</ce:italic>
and
<ce:italic>Phragmites</ce:italic>
roots lost more mass (48.9–63.8% and 59.2–85.5%, respectively) after 112 days than
<ce:italic>Typha</ce:italic>
and
<ce:italic>Scirpus</ce:italic>
(36.3–43.6 and 37.0–47.2%, respectively). These differences continued through to the end of the study, except in the shallow sites where
<ce:italic>Scirpus</ce:italic>
roots lost more mass and had comparable mass remaining as
<ce:italic>Scolochloa</ce:italic>
and
<ce:italic>Phragmites</ce:italic>
. In the unflooded sites, there was little difference between species. All litters lost nitrogen (22.9–90.0%) and phosphorus (46.3–92.7%) during the first 112 days, then levels tended to remain constant. Decay rates for our belowground root and rhizome litters were comparable to published literature values for aboveground shoot litter of the same species, except for
<ce:italic>Phragmites</ce:italic>
roots and rhizomes which decomposed at a faster rate (−
<ce:italic>k</ce:italic>
= 0.0014−0.0032) than shoots (−
<ce:italic>k</ce:italic>
= 0.0003−0.0007, [van der Valk, A.G., Rhymer, J.M., Murkin, H.R., 1991. Flooding and the decomposition of litter of four emergent plant species in a prairie wetland. Wetlands 11, 1–16]).</ce:simple-para>
</ce:abstract-sec>
</ce:abstract>
<ce:keywords>
<ce:section-title>Keywords</ce:section-title>
<ce:keyword>
<ce:text>
<ce:italic>Typha</ce:italic>
</ce:text>
</ce:keyword>
<ce:keyword>
<ce:text>
<ce:italic>Phragmites</ce:italic>
</ce:text>
</ce:keyword>
<ce:keyword>
<ce:text>
<ce:italic>Scolochloa</ce:italic>
</ce:text>
</ce:keyword>
<ce:keyword>
<ce:text>
<ce:italic>Scirpus</ce:italic>
</ce:text>
</ce:keyword>
<ce:keyword>
<ce:text>Delta Marsh, wetland</ce:text>
</ce:keyword>
</ce:keywords>
</head>
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<title>Decomposition of emergent macrophyte roots and rhizomes in a northern prairie marsh</title>
</titleInfo>
<titleInfo type="alternative" contentType="CDATA">
<title>Decomposition of emergent macrophyte roots and rhizomes in a northern prairie marsh</title>
</titleInfo>
<name type="personal">
<namePart type="given">Dale A.</namePart>
<namePart type="family">Wrubleski</namePart>
<affiliation>Institute for Wetland and Waterfowl Research, c/o Ducks Unlimited Canada, Stonewall P.O. Box 1160, Oak Hammock Marsh, Manitoba, Canada, R0C 2Z0</affiliation>
<description>Corresponding author.</description>
<role>
<roleTerm type="text">author</roleTerm>
</role>
</name>
<name type="personal">
<namePart type="given">Henry R.</namePart>
<namePart type="family">Murkin</namePart>
<affiliation>Institute for Wetland and Waterfowl Research, c/o Ducks Unlimited Canada, Stonewall P.O. Box 1160, Oak Hammock Marsh, Manitoba, Canada, R0C 2Z0</affiliation>
<role>
<roleTerm type="text">author</roleTerm>
</role>
</name>
<name type="personal">
<namePart type="given">Arnold G.</namePart>
<namePart type="family">van der Valk</namePart>
<affiliation>Department of Botany, Iowa State University, Ames, IA 50011, USA</affiliation>
<role>
<roleTerm type="text">author</roleTerm>
</role>
</name>
<name type="personal">
<namePart type="given">Jeffrey W.</namePart>
<namePart type="family">Nelson</namePart>
<affiliation>Ducks Unlimited Inc., One Waterfowl Way, Memphis, TN 38120, USA</affiliation>
<role>
<roleTerm type="text">author</roleTerm>
</role>
</name>
<typeOfResource>text</typeOfResource>
<genre type="research-article" displayLabel="Full-length article"></genre>
<originInfo>
<publisher>ELSEVIER</publisher>
<dateIssued encoding="w3cdtf">1997</dateIssued>
<copyrightDate encoding="w3cdtf">1997</copyrightDate>
</originInfo>
<language>
<languageTerm type="code" authority="iso639-2b">eng</languageTerm>
<languageTerm type="code" authority="rfc3066">en</languageTerm>
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<abstract lang="en">Dry mass, nitrogen and phosphorus content in belowground litter of four emergent macrophytes (Typha glauca Godr., Phragmites australis (Cav.) Trin., Scolochloa festucacea (Willd.) Link and Scirpus lacustris L.) were followed for 1.2 years in a series of experimental marshes, Delta Marsh, Manitoba. Litter bags containing roots and rhizome materials of each species were buried in unflooded soil, or soil flooded at three water depths (1–30, 31–60, > 60 cm). There were few differences in dry mass loss in unflooded or flooded soils, and depth of flooding also had little effect on decomposition rates. In the flooded sites, Scolochloa and Phragmites roots lost more mass (48.9–63.8% and 59.2–85.5%, respectively) after 112 days than Typha and Scirpus (36.3–43.6 and 37.0–47.2%, respectively). These differences continued through to the end of the study, except in the shallow sites where Scirpus roots lost more mass and had comparable mass remaining as Scolochloa and Phragmites. In the unflooded sites, there was little difference between species. All litters lost nitrogen (22.9–90.0%) and phosphorus (46.3–92.7%) during the first 112 days, then levels tended to remain constant. Decay rates for our belowground root and rhizome litters were comparable to published literature values for aboveground shoot litter of the same species, except for Phragmites roots and rhizomes which decomposed at a faster rate (−k = 0.0014−0.0032) than shoots (−k = 0.0003−0.0007, [van der Valk, A.G., Rhymer, J.M., Murkin, H.R., 1991. Flooding and the decomposition of litter of four emergent plant species in a prairie wetland. Wetlands 11, 1–16]).</abstract>
<subject>
<genre>Keywords</genre>
<topic>Typha</topic>
<topic>Phragmites</topic>
<topic>Scolochloa</topic>
<topic>Scirpus</topic>
<topic>Delta Marsh, wetland</topic>
</subject>
<relatedItem type="host">
<titleInfo>
<title>Aquatic Botany</title>
</titleInfo>
<titleInfo type="abbreviated">
<title>AQBOT</title>
</titleInfo>
<genre type="journal">journal</genre>
<originInfo>
<dateIssued encoding="w3cdtf">199709</dateIssued>
</originInfo>
<identifier type="ISSN">0304-3770</identifier>
<identifier type="PII">S0304-3770(00)X0023-X</identifier>
<part>
<date>199709</date>
<detail type="volume">
<number>58</number>
<caption>vol.</caption>
</detail>
<detail type="issue">
<number>2</number>
<caption>no.</caption>
</detail>
<extent unit="issue pages">
<start>89</start>
<end>193</end>
</extent>
<extent unit="pages">
<start>121</start>
<end>134</end>
</extent>
</part>
</relatedItem>
<identifier type="istex">CB4D36B5E5CEFE651D319D9367C1AA40958A02EB</identifier>
<identifier type="DOI">10.1016/S0304-3770(97)00016-8</identifier>
<identifier type="PII">S0304-3770(97)00016-8</identifier>
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<recordContentSource>ELSEVIER</recordContentSource>
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