Models of Warmed Sedimentation Method Based on Community Bali Island

  • I Made Nada Department of Civil Engineering, Mahasaraswati University Denpasar, 80233, Indonesia
  • Ida Bagus Suryatmaja Department of Civil Engineering, Mahasaraswati University Denpasar, 80233, Indonesia
  • I Gusti Ngurah Alit Wiswasta Department of Agriculture, Mahasaraswati University Denpasar, 80233, Indonesia
Keywords: Lake, Erosion, Sedimentation, Plants, Models

Abstract

Community-based sedimentation prevention is aimed at maintaining the balance of Lake Batur, Beratan Lake, Lake Buyan and Lake Tamblingan. Sedimentation triggered by the pattern of management of agricultural lands less attention to aspects of soil and water conservation. The purpose of this research is; (1) to obtain a community-based sedimentation prevention model, (2) Mapping Land management on the edge of the lake, (3) erosion control strategy at the edge of the lake. This research was field experiment and surpei, sampling was done by purposive sampling at Batur Lake 20 samples, Beratan Lake 16 samples, Lake Buyan 16 samples and Danau Tamblingan 12 Sampel. The socio-economic support data of the community was determined by 180 respondents in cluster sampling. Interviews and questionnaires are closed questions on a conventional scale. The characteristics of the lake were analyzed descriptive statistics using the SPSS tool. Land mapping is done by GPS method with GIS device. Predict erosion using the Universal Soil Loss Equation (USLE) Model, for sedimentation using the Stanford Sediment model. The analysis of the rate due to erosion, done by non linear regression analysis. The analysis shows that the settlement has an average of 115,85%, plantation 245,50% and sedimentation level 1,017,93 m3 / year. Sedimentation was tested on both sides with a 95% confidence level on the modeled sediment data. The conclusions and outcomes of this study are community-based models that collaborate with elephant grass and vetiveria.

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Published
2019-02-22