Sebagai salah satu kabupaten percontohan, KPH di Kapuas Hulu dipilih menjadi salah satu lokasi di... more Sebagai salah satu kabupaten percontohan, KPH di Kapuas Hulu dipilih menjadi salah satu lokasi dimana akan dilakukan uji coba sekaligus implementasi kegiatan inventarisasi karbon dan hutan. Kegiatan pelatihan pengukuran dan penghitungan cadangan karbon telah dilakukan sebelumnya sebagai salah satu upaya peningkatan kapasitas bagi stakeholder di Kapuas Hulu. Lebih lanjut, implementasi di lapangan yang dilakukan melalui kolaborasi antara pihak GIZ, DPMU dan Dishut selain bertujuan untuk peningkatan keakurasian pendugaan cadangan karbon juga menjadi salah satu sarana untuk transfer pengetahuan. Kami bersyukur kegiatan pengembangan persamaan alometrik di Kapuas Hulu telah dilaksanakan dengan sukses dan membuahkan hasil yang bermanfaat. Persamaan alometrik lokal yang dikembangkan akan sangat berguna untuk pendugaan karbon hutan di Kabupaten Kapuas Hulu secara lebih akurat. Hal ini tentunya dapat meningkatkan kredibilitas informasi yang disampaikan kepada pihak publik maupun pihak donor. ...
The Conference of the Parties (COP) under the United Nations Framework Convention on Climate Chan... more The Conference of the Parties (COP) under the United Nations Framework Convention on Climate Change (UNFCCC) invites developing countries aiming to undertake REDD+ activities to provide a number of strategic documents. Indonesia accepts the invitation to submit proposed national forest reference emission level (FREL) for deforestation and forest degradation in the context of results-based payments for activities relating to REDD+. The FREL in this publication attempts to improve the previous FRELs, which was developed under three initiatives (Second National Communication/SNC, REDD+ Agency/RA, and Ministry of Forestry/MoFor) and fulfill the COP requirements by following the guidance for technical assessment and adopting principals on transparency, accuracy, completeness and consistency. Experts representing cross-ministerial agencies and organizations were commissioned to facilitate the construction process through a transparent and scientific-based participatory mechanism. Stepwise...
The Conference of the Parties (COP) under the United Nations Framework Convention on Climate Chan... more The Conference of the Parties (COP) under the United Nations Framework Convention on Climate Change (UNFCCC) invites developing countries aiming to undertake REDD+ activities to provide a number of strategic documents. Indonesia accepts the invitation to submit proposed national forest reference emission level (FREL) for deforestation and forest degradation in the context of results-based payments for activities relating to REDD+. The FREL in this publication attempts to improve the previous FRELs, which was developed under three initiatives (Second National Communication/SNC, REDD+ Agency/RA, and Ministry of Forestry/MoFor) and fulfill the COP requirements by following the guidance for technical assessment and adopting principals on transparency, accuracy, completeness and consistency .....
Mangroves in Indonesia contribute about a quarter of world’s mangrove area and are mainly distrib... more Mangroves in Indonesia contribute about a quarter of world’s mangrove area and are mainly distributed in Sumatera, Kalimantan, and Papua islands. This study aimed to quantify soil properties and carbon pools of mangrove ecotypes and among those islands. We sampled mangrove soils at distances of 25, 50, 75, 100, 125, and 150 m from the edge of water body at depth intervals of 0-15, 1530, 30-50, 50-100 and >100 cm at Sumatera (6 transects), Kalimantan (7), and Papua (13) and estimated also their above-ground carbon pools using six of 7mradius plots at respective distances. Average of soil depths, soil carbon contents and carbon pools of riverine ecotype (175.9±33.3 cm, 8.4±1.3 % and 812.0±38.3 Mg C.ha, respectively) were significantly smaller (P<0.01) than that of estuarine ecotype (207.5±20.2 cm, 10.2±2.0 % and 972.8±69.3 Mg C.ha, respectively). Average soil bulk density of riverine ecotype (0.62±0.07 g.cm), however, was significantly larger (P<0.01) than that of estuarine ecotype (0.53±0.10 g.cm). There were no differences among islands on average of soil bulk density and soil carbon content. Average soil carbon pool down to their soil depth at Sumatera Island (1033.5±73.0 Mg C.ha) was significantly larger (P<0.01) than at Kalimantan Island (760.1±50.3 Mg C.ha), but both were not different from that of Papua Island (883.7±28.2 Mg C.ha). However, average soil depth of Papua mangrove (214.5±7.8 cm) was significantly deeper (P<0.01) than that of Kalimantan (171.1±42.0 cm) and both were not different from that of Sumatera (189.5±18.6 cm). Soil properties (bulk density, carbon content, and carbon pool) at each distance from the edge of water body landwardly were not significantly different at all sites for all depth intervals. Mean carbon pools at depth interval of 0-15, 15-30, and 30-50 cm (70.4±7.7 to 96.0±9.2 Mg C.ha) were similar, but significantly smaller than that of deeper soil depth of 50-100 cm (245.0±35.2 Mg C.ha), and >100 cm (365.6±165.2 Mg C.ha). Aboveground carbon pools of riverine and estuarine mangrove were similar (213.2±35.7 and 199.9±15.6 Mg C.ha), but their ecosystem carbon pools were significantly different (1025.2±68.6 and 1172.7±66.2 Mg C.ha, respectively) due to their soil carbon pools. Estuarine mangrove seems to lodge sediments and nutrients from the upstream rivers of riverine mangrove as well as accumulating materials of levee construction from dynamic sea tides, while riverine mangrove tend to be proned to abrasion and erosion of their terraces. Aboveground carbon pools among islands were also similar, but their ecosystem carbon pools were significantly different (Sumatera: 1230.0±67.1, Kalimantan: 944.7±37.6, and Papua: 1104.6±24.7 Mg C.ha).
Recently there has been renewed interest in accurate estimation of forest carbon stock in the con... more Recently there has been renewed interest in accurate estimation of forest carbon stock in the context of climate change mitigation in the forestry sector. Many studies were carried out focusing on ground measurements and remote sensing techniques for the improvement of above ground biomass estimation at plot and landscape scales. However most studies neglected the importance of above ground biomass (AGB) model selection. Our study aims at assessing existing models for estimating tree height and AGB in tropical peat land forest. We use destructive sampling data as reference value. In August 2014, ten trees from mixed species and maximum diameter of 94 cm were cut down and measured in a peat swamp forest of Central Kalimantan, Indonesia. We evaluated existing regional and local equations for tree height and AGB estimation. We found that all existing models showed mean absolute errors between 28% to 83% and 19% to 51% for tree height and AGB models, respectively. Tree height models ten...
Background: Extensive forest inventory data is available from commercial timber companies. For th... more Background: Extensive forest inventory data is available from commercial timber companies. For this study, over 20,000 plots were compiled for North, East and West Kalimantan provinces, with more than 17,000 of these exceeding our quality assurance tests. This study aimed to: (1) explore the potential use of existing permanent sample plots and forest inventory data established and measured by timber concessions; (2) assess uncertainties of aboveground biomass (AGB) estimates using various allometric models; (3) analyse the dynamics of AGB in logged-over dipterocarp forests; (4) analyse AGB stocks and emission factors in tropical dipterocarp ecosystems. Methods: Two types of forest monitoring datasets measured by timber companies in Indonesia were compiled and assessed in this study: permanent sample plots (PSPs) (24 1-ha plots), and the overall periodic timber inventory (OPTI) (17,301 plots). We compared various allometric equations for estimating AGB of the plots and developed a si...
Geoplanning: Journal of Geomatics and Planning, 2017
The ability to better understand tropical peat ecosystems for restoration and climate change miti... more The ability to better understand tropical peat ecosystems for restoration and climate change mitigation is often hampered by the lack of availability accurate and detailed data on vegetation cover and hydrologys, which is typically only derived from detailed and high-resolution imaging or field-based measurements. The aims of this study were to explore the potential advantage of airborne discrete-return lidar for mapping of forest cover in peat swamp forests. We used 2.8 pulse.m-1 lidar and the associated 1-m DTM derived from an airborne platform. The lidar dataset fully covered a 120 thousand hectare protection forest in Central Kalimantan. We extracted maximum vegetation heights in 5-m grid resolution to allow detailed mapping of the forest. We followed forest definition from FAO for forest and non-forest classification. We found that lidar was able to capture detail variation of canopy height in high-resolution, thus provide more accurate classification. A comparison with existin...
Sebagai salah satu kabupaten percontohan, KPH di Kapuas Hulu dipilih menjadi salah satu lokasi di... more Sebagai salah satu kabupaten percontohan, KPH di Kapuas Hulu dipilih menjadi salah satu lokasi dimana akan dilakukan uji coba sekaligus implementasi kegiatan inventarisasi karbon dan hutan. Kegiatan pelatihan pengukuran dan penghitungan cadangan karbon telah dilakukan sebelumnya sebagai salah satu upaya peningkatan kapasitas bagi stakeholder di Kapuas Hulu. Lebih lanjut, implementasi di lapangan yang dilakukan melalui kolaborasi antara pihak GIZ, DPMU dan Dishut selain bertujuan untuk peningkatan keakurasian pendugaan cadangan karbon juga menjadi salah satu sarana untuk transfer pengetahuan. Kami bersyukur kegiatan pengembangan persamaan alometrik di Kapuas Hulu telah dilaksanakan dengan sukses dan membuahkan hasil yang bermanfaat. Persamaan alometrik lokal yang dikembangkan akan sangat berguna untuk pendugaan karbon hutan di Kabupaten Kapuas Hulu secara lebih akurat. Hal ini tentunya dapat meningkatkan kredibilitas informasi yang disampaikan kepada pihak publik maupun pihak donor. ...
The Conference of the Parties (COP) under the United Nations Framework Convention on Climate Chan... more The Conference of the Parties (COP) under the United Nations Framework Convention on Climate Change (UNFCCC) invites developing countries aiming to undertake REDD+ activities to provide a number of strategic documents. Indonesia accepts the invitation to submit proposed national forest reference emission level (FREL) for deforestation and forest degradation in the context of results-based payments for activities relating to REDD+. The FREL in this publication attempts to improve the previous FRELs, which was developed under three initiatives (Second National Communication/SNC, REDD+ Agency/RA, and Ministry of Forestry/MoFor) and fulfill the COP requirements by following the guidance for technical assessment and adopting principals on transparency, accuracy, completeness and consistency. Experts representing cross-ministerial agencies and organizations were commissioned to facilitate the construction process through a transparent and scientific-based participatory mechanism. Stepwise...
The Conference of the Parties (COP) under the United Nations Framework Convention on Climate Chan... more The Conference of the Parties (COP) under the United Nations Framework Convention on Climate Change (UNFCCC) invites developing countries aiming to undertake REDD+ activities to provide a number of strategic documents. Indonesia accepts the invitation to submit proposed national forest reference emission level (FREL) for deforestation and forest degradation in the context of results-based payments for activities relating to REDD+. The FREL in this publication attempts to improve the previous FRELs, which was developed under three initiatives (Second National Communication/SNC, REDD+ Agency/RA, and Ministry of Forestry/MoFor) and fulfill the COP requirements by following the guidance for technical assessment and adopting principals on transparency, accuracy, completeness and consistency .....
Mangroves in Indonesia contribute about a quarter of world’s mangrove area and are mainly distrib... more Mangroves in Indonesia contribute about a quarter of world’s mangrove area and are mainly distributed in Sumatera, Kalimantan, and Papua islands. This study aimed to quantify soil properties and carbon pools of mangrove ecotypes and among those islands. We sampled mangrove soils at distances of 25, 50, 75, 100, 125, and 150 m from the edge of water body at depth intervals of 0-15, 1530, 30-50, 50-100 and >100 cm at Sumatera (6 transects), Kalimantan (7), and Papua (13) and estimated also their above-ground carbon pools using six of 7mradius plots at respective distances. Average of soil depths, soil carbon contents and carbon pools of riverine ecotype (175.9±33.3 cm, 8.4±1.3 % and 812.0±38.3 Mg C.ha, respectively) were significantly smaller (P<0.01) than that of estuarine ecotype (207.5±20.2 cm, 10.2±2.0 % and 972.8±69.3 Mg C.ha, respectively). Average soil bulk density of riverine ecotype (0.62±0.07 g.cm), however, was significantly larger (P<0.01) than that of estuarine ecotype (0.53±0.10 g.cm). There were no differences among islands on average of soil bulk density and soil carbon content. Average soil carbon pool down to their soil depth at Sumatera Island (1033.5±73.0 Mg C.ha) was significantly larger (P<0.01) than at Kalimantan Island (760.1±50.3 Mg C.ha), but both were not different from that of Papua Island (883.7±28.2 Mg C.ha). However, average soil depth of Papua mangrove (214.5±7.8 cm) was significantly deeper (P<0.01) than that of Kalimantan (171.1±42.0 cm) and both were not different from that of Sumatera (189.5±18.6 cm). Soil properties (bulk density, carbon content, and carbon pool) at each distance from the edge of water body landwardly were not significantly different at all sites for all depth intervals. Mean carbon pools at depth interval of 0-15, 15-30, and 30-50 cm (70.4±7.7 to 96.0±9.2 Mg C.ha) were similar, but significantly smaller than that of deeper soil depth of 50-100 cm (245.0±35.2 Mg C.ha), and >100 cm (365.6±165.2 Mg C.ha). Aboveground carbon pools of riverine and estuarine mangrove were similar (213.2±35.7 and 199.9±15.6 Mg C.ha), but their ecosystem carbon pools were significantly different (1025.2±68.6 and 1172.7±66.2 Mg C.ha, respectively) due to their soil carbon pools. Estuarine mangrove seems to lodge sediments and nutrients from the upstream rivers of riverine mangrove as well as accumulating materials of levee construction from dynamic sea tides, while riverine mangrove tend to be proned to abrasion and erosion of their terraces. Aboveground carbon pools among islands were also similar, but their ecosystem carbon pools were significantly different (Sumatera: 1230.0±67.1, Kalimantan: 944.7±37.6, and Papua: 1104.6±24.7 Mg C.ha).
Recently there has been renewed interest in accurate estimation of forest carbon stock in the con... more Recently there has been renewed interest in accurate estimation of forest carbon stock in the context of climate change mitigation in the forestry sector. Many studies were carried out focusing on ground measurements and remote sensing techniques for the improvement of above ground biomass estimation at plot and landscape scales. However most studies neglected the importance of above ground biomass (AGB) model selection. Our study aims at assessing existing models for estimating tree height and AGB in tropical peat land forest. We use destructive sampling data as reference value. In August 2014, ten trees from mixed species and maximum diameter of 94 cm were cut down and measured in a peat swamp forest of Central Kalimantan, Indonesia. We evaluated existing regional and local equations for tree height and AGB estimation. We found that all existing models showed mean absolute errors between 28% to 83% and 19% to 51% for tree height and AGB models, respectively. Tree height models ten...
Background: Extensive forest inventory data is available from commercial timber companies. For th... more Background: Extensive forest inventory data is available from commercial timber companies. For this study, over 20,000 plots were compiled for North, East and West Kalimantan provinces, with more than 17,000 of these exceeding our quality assurance tests. This study aimed to: (1) explore the potential use of existing permanent sample plots and forest inventory data established and measured by timber concessions; (2) assess uncertainties of aboveground biomass (AGB) estimates using various allometric models; (3) analyse the dynamics of AGB in logged-over dipterocarp forests; (4) analyse AGB stocks and emission factors in tropical dipterocarp ecosystems. Methods: Two types of forest monitoring datasets measured by timber companies in Indonesia were compiled and assessed in this study: permanent sample plots (PSPs) (24 1-ha plots), and the overall periodic timber inventory (OPTI) (17,301 plots). We compared various allometric equations for estimating AGB of the plots and developed a si...
Geoplanning: Journal of Geomatics and Planning, 2017
The ability to better understand tropical peat ecosystems for restoration and climate change miti... more The ability to better understand tropical peat ecosystems for restoration and climate change mitigation is often hampered by the lack of availability accurate and detailed data on vegetation cover and hydrologys, which is typically only derived from detailed and high-resolution imaging or field-based measurements. The aims of this study were to explore the potential advantage of airborne discrete-return lidar for mapping of forest cover in peat swamp forests. We used 2.8 pulse.m-1 lidar and the associated 1-m DTM derived from an airborne platform. The lidar dataset fully covered a 120 thousand hectare protection forest in Central Kalimantan. We extracted maximum vegetation heights in 5-m grid resolution to allow detailed mapping of the forest. We followed forest definition from FAO for forest and non-forest classification. We found that lidar was able to capture detail variation of canopy height in high-resolution, thus provide more accurate classification. A comparison with existin...
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