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H. D. Walangitan
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Agriculture, Biological Sciences & Forestry

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STUDI PENGEMBANGAN KAWASAN HUTAN LINDUNG GUNUNG MAHAWU MENJADI TAHURA M. Ali Liambana; H. D. Walangitan; S. P. Ratag
COCOS Vol. 9 No. 6 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i2.20212

Abstract

ABSTRACT   This study aims to describe the biophysical and socio-economic conditions of Mount Mahawoe Protected Forest area and examine the strategy of the development of Mount Mahawoe Protected Forest area into the Great Forest Park area in terms of policy, institutional and potential of the area.This research was conducted by using survey method and interview to formal and informal parties by using open question questionnaire. Based on the SWOT analysis, there are 20 (two pulse strategies) that can be taken as an alternative strategy in achieving the objectives of Mahawoe Mountain forest area development into Tahura such as maintaining community commitment and participation, developing the role of NGOs and community leaders around the Mahawoe Mountain area in forest area development activities, establishes priority target locations that directly impact the protection of the hydrological system, develops species of economic and ecological value, builds stakeholder participation and cooperation in controlling the sale and purchase of land in the Mount Mahawoe protected forest area.     Keywords : Mount Mahawoe, Protected Forest, and Tahura.
MODELING TUTUPAN LAHAN di DAS TIKALA BERDASARKAN KAPASITAS SALURAN SUNGAI TIKALA Heinsy A.J. Telah; J. A. Rombang; H. D. Walangitan
EUGENIA Vol. 24 No. 2 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.24.2.2018.22805

Abstract

ABSTRACT Tikala river is the main channel of Tikala watershed. Tikala watershed covers an area of 9215,89 km² and the length of the main river is 23,73 km. The decline in Tikala watershed quality is marked by high fluctuations of river debit, the increase of erosion and sedimentation rates, and destructive flood. Comparing to floods caused by other rivers in Manado city, flood caused by Tikala river on the 15th January 2014 was the worst case. For this reason, research was conducted to analyze the capacity of river channels in three sampling spots, chosen through purposive sampling methods, and to model types of landuse suitable to the capacity of river channels. Results of river channel capacity analysis at 3 sampling spots using Manning's equation were 45,29 m3/s, 131,58 m3/s, and 36,39 m3/s. Five models of landuse were carried out for Tikala Watershed and the most suitable landuse model is the 4th type in which open area, dry agriculture, and 4.099 ha of dry agriculture mixed with shrubs were converted into an agroforestry system.Keywords: watershed, river capacity, modeling
Co-Authors Heinsy A.J. Telah J. A. Rombang M. Ali Liambana S. P. Ratag