| dc.creator |
Kurnain, Ahmad |
|
| dc.date |
2018-12 |
|
| dc.date.accessioned |
2020-06-15T04:05:04Z |
|
| dc.date.available |
2020-06-15T04:05:04Z |
|
| dc.identifier |
http://eprints.ulm.ac.id/8889/1/1_Hydrophysical_properties.pdf |
|
| dc.identifier |
Kurnain, Ahmad (2018) Hydrophysical properties of ombrotrophic peat under drained peatlands. Hydrophysical properties of ombrotrophic peat under drained peatlands. |
|
| dc.identifier.uri |
https://repo-dosen.ulm.ac.id//handle/123456789/13960 |
|
| dc.description |
Understanding the processes that control the
retention and flow of water in peat soils is critical to the effective
management of such soils from both agricultural and ecological
perspectives. The water retention properties of peats collected from
rubber-cultivated, oil palm-cultivated, and abandoned (uncultivated)
areas in the vicinity of Kanamit Barat Village, Pulang Pisau
District, Province of Central Kalimantan were characterized using
the van Genuchten equation. Based on the parameters of α indicating
a change in the water content as water potential changes and
n indicating the rate of decreasing water content as water potential
becomes more negative, the more decomposed peats in the rubber
cultivated peatland lost their water relatively slowly at small negative
pressure heads, while less decomposed peats in the oil palm-cultivated
and abandoned peatlands lost their water more quickly. This
reflects difference of pore-size distribution among different land
uses of peatlands. The total volume of water retained by the unsaturated
layers in the rubber-cultivated peatland was lower than that in
the oil palm-cultivated and abandoned areas. Also, the residual water
content was higher in the rubber-cultivated peatland compared to the
oil palm-cultivated and abandoned areas. This implies that the proportion
of the maximum volume of water being removed decreases
as a result of agricultural activities in peatlands. This evidence shows
that the moisture state of peat soil is greatly influenced by the degree
of peat decomposition and water table fluctuation.
K e y w o r d s: drainage, moisture retention, residual porosity,
tropical peatland |
|
| dc.format |
text |
|
| dc.publisher |
Prodi Ilmu Tanah Fak.Pertanian Universitas Lambung Mangkurat |
|
| dc.relation |
http://international-agrophysics.org/ |
|
| dc.relation |
http://eprints.ulm.ac.id/8889/ |
|
| dc.subject |
S Agriculture (General) |
|
| dc.title |
Hydrophysical properties of ombrotrophic peat under drained peatlands |
|
| dc.type |
Article |
|
| dc.type |
PeerReviewed |
|