Variability of Hydro-Physical Properties in Drained Peat Soil (A Case Study of Perigi Village Ogan Komering Ilir South Sumatra Indonesia)

Bakri, Bakri and Bambang Prayitno, Muh. and Ass'ad, Sazili Variability of Hydro-Physical Properties in Drained Peat Soil (A Case Study of Perigi Village Ogan Komering Ilir South Sumatra Indonesia). the 1 st International Conference on Agricultural Science, Technology, Economics and Sustainability (ICoASTES 2024. (In Press)

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Abstract

Peatlands have a hydrological function to provide water, control floods, weather conditions and control chemical and biological processes in the soil. Furthermore, it also plays an important role in the wetland development process. For this reason, peatland management must be careful so as not to disrupt the function of the peat ecosystem. One of the most important hydrological parameters which is an indicator of peatland damage is the soil hydraulic conductivity value (Ks), bulk density and porosity. The research aims to determine the diversity of soil hydraulic conductivity values in peatlands reclaimed for agriculture. Soil sampling was carried out in the peatlands of Perigi Village, included in the Sugihan-Saleh KHG (Peat Hydrological Area). The Ks measurement method in the laboratory uses the constant head method. The research results showed that the vertical permeability coefficient (kv) was 50.21-52.63 cm/hour and the horizontal permeability coefficient (kh) was 113.2 cm/hour. Spatial variations do not show significant differences where the Ks value relative to the distance to the drainage channel shows the same inhibiting value between 50.21-52.63 cm/hour. Soil porosity values range between 92.10-95.34% and soil bulk weights range from 0.12-0.23 gr/cm3. This condition shows that horizontal water movement is very fast and this causes a rapid decrease in the water level if the land is opened up by building channels. Therefore, assessing damage to peat land also determines the number of land drainage networks that have been built. To control the groundwater level so that it does not fall quickly and in accordance with the compliance figure of 40 cm, the construction of canal blocking is absolutely necessary in the drainage system in agricultural and plantation areas

Item Type:	Article
Subjects:	S Agriculture > S Agriculture (General) > S590-599.9 Soils. Soil science. Including soil surveys, soil chemistry, soil structure, soil-plant relationships S Agriculture > S Agriculture (General) > S604.5-604.64 Agricultural conservation
Depositing User:	Dr Momon Sodik Imanudin
Date Deposited:	24 Dec 2024 03:37
Last Modified:	24 Dec 2024 03:37
URI:	http://repository.unsri.ac.id/id/eprint/161155

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