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All Journal Indonesian Journal of Geography Dinamika Lingkungan Indonesia
Nawari, Nawari
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Earth & Planetary Sciences Environmental Science

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Kesesuaian dan daya dukung lingkungan untuk pengembangan ekowisata di kawasan hutan Gunung Mareje Utara Kabupaten Lombok Tengah Nawari, Nawari; Isjoni, Isjoni; Zulkarnaini, Zulkarnaini
Dinamika Lingkungan Indonesia Vol 8, No 1 (2021)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1461.838 KB) | DOI: 10.31258/dli.8.1.p.17-28

Abstract

North Mareje Mountain Forest Area (NMMFA) is one of important areas for ecotourism development in Lombok Island. Currently  integrated ecotourism management plan (IEMP) is not available for this area, it has caused land degradation and natural disasters. To support sustainable IEMP establishment, this study was conducted with objectives to analyze land suitability and assessing the environmental carrying capacity of ecotourism development. The study conducted in NMMFA, Serage Village, Central Lombok, NTB during January - March 2020. The data used in this study include attractiveness, landscape naturalness, bio-geophysical limiting factors, accessibility, optimal space requirements and length time of tourist activities. Secondary data compiled from various sources and primary data collected by field observations and interviews. Land suitability analysis used weighted linear combination (WLC), environment carrying capacity analyzed by Douglas Method  (Zacarias et al., 2011) and the evaluation conducted by t-test. Based on the analysis,  explained that land suitable area for ecotourism in  NMMFA is 1.235,2 Ha (75,8% of total area). Effective carrying capacity (ECC) is 32.729 visitors/day. The important indicators contributed to land suitability include soil conservation, tree diversity, visibility and natural attractiveness. T-test analysis shows that the actual landuse for ecotourism smaller than potential area, the average number of tourist visits in the area also smaller than the ECC. It can be concluded if the current land utilization have been meet with land suitability and environmental carrying capacity.
Estimation of Carbon Dioxide Sequestration and Litter Production in Rehabilitated Mangrove Ecosystems Efriyeldi, Efriyeldi; Mulyadi, Aras; Nawari, Nawari
Indonesian Journal of Geography Vol 57, No 1 (2025): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.95295

Abstract

The ability of mangrove to sequestrate carbon dioxide (CO2) is becoming part of the methods for climate change mitigation due to the ability of plants to absorb and store CO2 from the atmosphere as biomass. Therefore, this research aimed to estimate CO2 sequestration and litter production by Avicennia alba planted in mangrove rehabilitation area. The data collection method was field observation which was used to measure tree parameters and litter on the observation plot. Tree biomass was estimated using the allometric equation and converted to carbon sequestration. Moreover, a one-way Analysis of Variance (ANOVA) test was applied to assess biomass and litter production differences in the observed stations. Regression analysis was also used to diagnose the relationship between tree diameter, biomass, and carbon sequestration. The results showed that the average biomass and carbon storage at tree level were directly proportional to tree diameter and age. At the stand level, biomass and carbon sequestration in the three stations were not significantly different at the 95% confidence level. It was also observed that stem density affected mangrove biomass. The results showed that more mangrove mortality occurred with older ages at the observed stations and this lowered the stem density and biomass. Furthermore, the relationship between diameter, biomass, and carbon sequestration was directly proportional. Litter production also increased directly with tree age and diameter but the trend was insignificant. The leaf part was found to be the most significant contributor to litter production, and the proportion increased with age and diameter. These results were essential information for future sustainable mangrove rehabilitation plans.Received: 2024-04-02 Revised: 2024-06-21 Accepted: 2025-03-07 Published: 2025-04-28
Co-Authors Anak Agung Istri Sri Wiadnyani Aras Mulyadi Aris Fauzan, Aris Efriyeldi, Efriyeldi Isjoni Isjoni Sri Agustinawati Yunianto Herlambang, Adhy Pratomo