The land use patterns for soil organic carbon conservation at Endanga watershed Southeast Sulawesi Indonesia

International Conference on Agriculture, Environment, and Food Security

农业科学;生态环境科学

Leomo, S.^1 ; Ginting, S.^1 ; Sabaruddin, L.^2 ; Tufaila, M.^1 ; Muhidin^2

Department of Soil Science, Faculty of Agriculture, Halu Oleo University, Kendari Southeast Sulawesi

93212, Indonesia^1

Department of Agrotechnology, Faculty of Agriculture, Halu Oleo University, Kendari Southeast Sulawesi

93212, Indonesia^2

关键词: Erosion hazards;    Forest land;    Land use pattern;    Oil palm plantations;    Organic soil;    Severe erosion;    Soil organic carbon;    Surface streams;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/122/1/012034/pdf
DOI  :  10.1088/1755-1315/122/1/012034

来源: IOP

【 摘 要 】

The Endanga basin is one part of the Konaweeha watershed located in South Konawe, Southeast Sulawesi Province, covering an area of 1,353.67 hectares. The land use patterns in Endanga Watershed contained forests, shrubs, oil palm plantations, pepper fields, and cultivated fields of field rice, corn monoculture and intercropping of peanuts and corn. This watershed needs serious attention because most of its territory is on slope of 15-40%, with erosion hazard levels (EHL) varying from mild erosion to severe erosion. The loss of organic carbon (C-organic) soil is measured from the soil carried along with the surface stream and into the reservoir on various land uses. The result measurement of C-organic soil loss on forest land use is 14.02 kg ha-1, shrubs land 22.71 kg ha-1, oil palm 151.32 kg ha-1, pepper garden 93.69 kg ha-1, field rice 313.80 kg.ha-1, monoculture of maize 142.44 kg ha-1, intercropped maize and corn 51.10 kg ha-1and open land 1,909.16 kg ha-1. The forest land and shrubs is best in conserving soil C-organic, but economically unfavorable for the community, so land use pattern for intercropping and pepper plantation can be used for soil C-organic conservation.