3250845
doi
10.5281/zenodo.3250845
oai:zenodo.org:3250845
user-bjss
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.
Department of Agriculture, PNG University of Technology PMB, LAE, MP 411, Papua New Guinea.
url:http://www.bsss.bg/issues/Issue1_2019/BJSS_2019_1_3.pdf
info:eu-repo/semantics/openAccess
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
Leucaena leucocephala (Lam.), sandy loam soil, pH, bulk density, SOC, water-holding capacity, carbon stock
<p>Leucaena (Leucaena leucocephala Lam.) trees planted in alley cropping or established<br>
on fallowed farms by natural means contribute significantly to soil health and productivity by<br>
influencing various soil properties. In this study, the effects of L. leucocephala (Lam.) on<br>
sandy loam soil pH, organic matter content, bulk density, water-holding capacity and carbon<br>
stock were investigated under humid lowland tropical climatic conditions in Papua New<br>
Guinea (PNG). Soil samples were collected from 60 cm deep piths dug out from 1 m and 2 m<br>
away from the base of the legume trees. The control soil samples were collected from<br>
adjacent grassland dominated by Imperata cylindrica (L.), 10 m away from the legume trees.<br>
In all the piths, soil samples were collected from the 0-20, 20-40 and 40-60 cm profiles. The<br>
results showed presence of the legume trees acidifies the soil (lowers pH), lowers surface soil<br>
organic carbon, improves the water holding capacity within the surface soils and helps<br>
improve bulk density, ideal for root growth. Comparatively there was more carbon in the<br>
surface soil of the grassland than under the legume trees. In most tropical regions, grasslands<br>
are often set a blaze for various land uses and the high carbon content is a potent source of<br>
CO<sub>2</sub> emission, contributing to the greenhouse gases (GHG) in the atmosphere. The low<br>
carbon stock measured under the legume trees means reduced emission of CO<sub>2</sub> when burnt<br>
and more benefits for the sandy loam soil. This study has implication for management of<br>
sandy loam soil using L. leucocephala (Lam.) under humid lowland tropical climatic soil<br>
conditions.</p>
Zenodo
2019-06-20
info:eu-repo/semantics/article
3250844
user-bjss
1579537923.935755
609999
md5:5368f7fed1c67f1160ef3c6dddfc182c
https://zenodo.org/records/3250845/files/BJSS_2019_1_3.pdf
public
http://www.bsss.bg/issues/Issue1_2019/BJSS_2019_1_3.pdf
Is identical to
url
10.5281/zenodo.3250844
isVersionOf
doi
Bulgarian Journal of Soil Science
4
1
33 - 45
2019-06-20