Journal article Open Access

Roles of Leucaena leucocephala (Lam.) on Sandy Loam Soil pH, Organic Matter, Bulk Density, Water-Holding Capacity and Carbon Stock Under Humid Lowland Tropical Climatic Conditions

Michael, Patrick S.


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  <identifier identifierType="DOI">10.5281/zenodo.3250845</identifier>
  <creators>
    <creator>
      <creatorName>Michael, Patrick S.</creatorName>
      <givenName>Patrick S.</givenName>
      <familyName>Michael</familyName>
      <affiliation>Department of Agriculture, PNG University of Technology PMB, LAE, MP 411, Papua New Guinea.</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Roles of Leucaena leucocephala (Lam.) on Sandy Loam Soil pH, Organic Matter, Bulk Density, Water-Holding Capacity and Carbon Stock Under Humid Lowland Tropical Climatic Conditions</title>
  </titles>
  <publisher>Zenodo</publisher>
  <publicationYear>2019</publicationYear>
  <subjects>
    <subject>Leucaena leucocephala (Lam.), sandy loam soil, pH, bulk density, SOC, water-holding capacity, carbon stock</subject>
  </subjects>
  <dates>
    <date dateType="Issued">2019-06-20</date>
  </dates>
  <language>en</language>
  <resourceType resourceTypeGeneral="JournalArticle"/>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://zenodo.org/record/3250845</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsIdenticalTo">http://www.bsss.bg/issues/Issue1_2019/BJSS_2019_1_3.pdf</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsVersionOf">10.5281/zenodo.3250844</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://zenodo.org/communities/bjss</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="https://creativecommons.org/licenses/by/4.0/legalcode">Creative Commons Attribution 4.0 International</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;Leucaena (Leucaena leucocephala Lam.) trees planted in alley cropping or established&lt;br&gt;
on fallowed farms by natural means contribute significantly to soil health and productivity by&lt;br&gt;
influencing various soil properties. In this study, the effects of L. leucocephala (Lam.) on&lt;br&gt;
sandy loam soil pH, organic matter content, bulk density, water-holding capacity and carbon&lt;br&gt;
stock were investigated under humid lowland tropical climatic conditions in Papua New&lt;br&gt;
Guinea (PNG). Soil samples were collected from 60 cm deep piths dug out from 1 m and 2 m&lt;br&gt;
away from the base of the legume trees. The control soil samples were collected from&lt;br&gt;
adjacent grassland dominated by Imperata cylindrica (L.), 10 m away from the legume trees.&lt;br&gt;
In all the piths, soil samples were collected from the 0-20, 20-40 and 40-60 cm profiles. The&lt;br&gt;
results showed presence of the legume trees acidifies the soil (lowers pH), lowers surface soil&lt;br&gt;
organic carbon, improves the water holding capacity within the surface soils and helps&lt;br&gt;
improve bulk density, ideal for root growth. Comparatively there was more carbon in the&lt;br&gt;
surface soil of the grassland than under the legume trees. In most tropical regions, grasslands&lt;br&gt;
are often set a blaze for various land uses and the high carbon content is a potent source of&lt;br&gt;
CO&lt;sub&gt;2&lt;/sub&gt; emission, contributing to the greenhouse gases (GHG) in the atmosphere. The low&lt;br&gt;
carbon stock measured under the legume trees means reduced emission of CO&lt;sub&gt;2&lt;/sub&gt; when burnt&lt;br&gt;
and more benefits for the sandy loam soil. This study has implication for management of&lt;br&gt;
sandy loam soil using L. leucocephala (Lam.) under humid lowland tropical climatic soil&lt;br&gt;
conditions.&lt;/p&gt;</description>
  </descriptions>
</resource>
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