scholarly journals Physical Profile of the Sub-watersheds of Southern Cauayan Municipal Forest and Watershed Reserve in Negros Occidental, Philippines

Author(s):  
Marc Alexie Ceasar B Badajos ◽  
Maria Cristina I Canson

The Southern Cauayan Municipal Forest and Watershed Reserve (SCMFWR) is a 6,000-hectare area in the forests of southwestern Negros in the Philippines. It is part of the Greater Calatong Watershed, which supplies water to farmers in Cauayan and Sipalay City. This study describes the profile of the sub-watersheds within the SCMFWR. The data may be used as basis for management purposes and monitoring of the overall health of the reserve. Specifically, the study delineated boundaries, and drainage areas, classified sub-watersheds, described land use, and determined water discharge of three major river tributaries Cabanbanan, Tinagpito, and Banso and their physical characteristics. The drainage areas of the three rivers were delineated using Topographic Map from the Philippine National Mapping and Resource Information Authority, Google Map, and ASTER GDEM 2011, and secondary data/maps from the Provincial Environment Management Office. DENR manual on watershed characterization was used for the sub-watershed classification. The measurement of water discharge was done by measuring average crosssectional areas of the river and water velocities obtained through the floatation method. Other watershed and river characteristics were gathered by ocular observation. The study determined that SCMFWR is divided into three subwatersheds with a total area of 2944.78 ha. that feeds the three river systems.

2020 ◽  
Vol 4 (1) ◽  
pp. 62-76
Author(s):  
Andi Rasti Serastiwati ◽  
St. Subaedah ◽  
Netty Syam

The Pamukkulu watershed is one of the Jeneberang-Kelara Sub-watersheds, which is one of the 108 Priority Watersheds in Indonesia determined based on the 2017 Ministry of Environment and Forestry Performance Report which is prioritized as a location for Forest and Land Rehabilitation activities. The purpose of this study was to analyze changes in land cover in the Pamukkulu watershed in 2008 and 2017, the effect of land cover changes in the Pamukkulu watershed on fluctuations in major river flows and analyze the health level of the Pamukkulu watershed based on analysis of major river discharge and changes in land cover. The study was conducted in February to April 2018. Data collection was carried out by taking secondary data in the form of land cover data in 2008 and 2017, climate data and Pamukkulu River discharge data. The results showed that based on the results of the analysis of the Land Cover Index (IPL), the condition of Pamukkulu watershed land cover in 2008 was at 19.38% and 16.96% in 2017 so that it was categorized as bad. The results of the hydrological analysis (river water discharge) on the River Regime Coefficient in 2008 were 125 and in 2017 amounted to 119.6 so that the KRS is also categorized as bad. While the results of the analysis of the Variant Coefficient (CV) in 2008 amounted to 144.90% and in 2017 amounted to 87.5% then the CV was categorized as poor. Based on the analysis of the value of the Land Cover Index, River Regime Coefficient and River Regime Coefficient in the Pamukkulu Watershed in 2008 and 2017 which are in the poor category, the performance of the Pamukkulu Watershed is in the poor category.


Author(s):  
Tijjani Ahmed Abali ◽  
Nehemiah Japheth Kalang ◽  
Simon Lee

Water is a sustaining element which is vital for all living being ,the discharge is a major concept in hydrography that presents information on the availability of water for human use and resource management. The aim of the research is to analyze the volume of discharge of River Benue at Jimeta with a view to provide early warning changes for flood. The primary data used were sounding, planimetric points and the velocity while the secondary data includes the discharge of previous years of 1999, 2002, and 2012 and the topographic map of the study area. The statistical analysis carried out using ANOVA to ascertain the assessment of the discharge; the result shows that there was decrease in the volume of discharge in the preceding years. The average velocity of water obtained was 1.03 m/s; it is as a result of the channel platform with 1.42% slope within the study area .In conclusion, the volume of discharge is decreasing with increase in sedimentation within the study area. Based on the findings of the research, it is recommended that there should be restoration measures such as dredging and buffer zone so as to create more space for adequate flow of water and to reduce the risk of flooding.


2021 ◽  
Vol 5 (1) ◽  
pp. 11-21
Author(s):  
Sangay Gyeltshen ◽  
Krisha Kumar Subedi ◽  
Laylo Zaridinova Kamoliddinovna ◽  
Jigme Tenzin

The study assessed the accuracies of globally available Digital Elevation Models (DEM’s) i.e., SRTM v3, ASTER GDEM v2 and ALOS PALSAR DEM with respect to Topo-DEM derived from topographic map of 5m contour interval. 100 ground control points of the elevation data were collected with the help of kinematic hand held GNSS (Global Navigation Satellite System), randomly distributed over the study area. The widely used RMSE statistic, NCC correlation and sub-pixel-based approach were applied to evaluate the erroneous, correlation, horizontal and vertical displacement in terms of pixels for the individual Digital Elevation Model. Following these evaluations, SRTM DEM was found to be highly accurate in terms of RMSE and displacement compared to other DEMs. This study is intended to provide the researchers, GIS specialists and the government agencies dealing with remote sensing and GIS, a basic clue on accuracy of the DEMs so that the best model can be selected for application on various purposes of the similar region.


Author(s):  
Siska Salatan ◽  
Victoria E.N. Manoppo ◽  
Suria Darwisito

AbstractTalaud Islands Regency includes maritime territory, 94.6% of which is waters directly adjacent to the Philippines and holds a variety of high economic living resources. In North Sulawesi Provincial Regulation Numbered 1/2017, article 12 concerning Zoning Plan of Coastal Zone and Small Islands of North Sulawesi Province 2017-2037, Talaud Islands Regency is designated as Integrated Marine and Fisheries Center Location of Talaud. It is located in Salibabu district, where Regional Regulation of Spatial Plan Numbered 1/2014 concerning Spatial Plan of Talaud Islands Regency for 2014-2034, Salibabu District is prioritized for Fishing Fisheries Regional Development and Management since its unutilized fisheries potential is still about 23,104 tons/year. In 2017, Salibabu district occupies the highest order for total fisheries production in Talaud Islands District. It was 702.3 tons or 11.79% of that in Talaud Islands Regency, 46.23% of which were gained from purse seines. Majority of the purse seine fishermen are those whose main livelihoods are fishermen and do not have other jobs. Fishing community is, in general, a relatively lagging community group socially, economically and culturally when compared with other community groups. The purse seine fishermen community in Salibabu district, in fact, still has mean income far below the minimum wage of Kabupaten Talaud, IDR. 1,500,000, -. The purse seine fisherman community in Salibabu district is still chained with poverty and backwardness. Therefore, there are needs for external intervention as an incentive to empower them in order to get out of the situation. This study used descriptive method, a method of studying the recent status of human groups, an object, a set of condition, a system of thinking or a class of events. Data collection consisted of primary and secondary data. It was done through in-depth interviews, filling questionnaires and literature studies. Respondents were purse seine fishermen communities in Salibabu district. Data analysis used descriptive method to know the socio-economic life of the communities and income formula to analyze the income level of fishermen purse seine. Results showed that mean net income in Salibabu district was approximately IDR 86,784,000/year for the purse seine owner and IDR.10,608,840/year for fishing crews, respectively, with main catches of skipjack tuna, mackerels, and scads. Keywords: Purse seine fisherman, Salibabu District and Income level of Fisherman AbstrakKabupaten Kepulauan Talaud termasuk wilayah bahari dimana 94,6% wilayahnya adalah perairan yang berbatasan langsung dengan negara Philipina dan memiliki sumberdaya hayati yang bernilai ekonomis tinggi. Dalam Peraturan Daerah Provinsi Sulawesi Utara No. 1 tahun 2017 pasal 12 tentang Rencana Zonasi Wilayah Pesisir dan Pulau-Pulau Kecil Provinsi Sulawesi Utara tahun 2017-2037, Kabupaten Kepulauan Talaud ditetapkan sebagai lokasi Sentra Kelautan dan Perikanan Terpadu. Lokasi tersebut terletak di Kecamatan Salibabu, dimana pada Perda RTRW (Rencana Tata Ruang Wilayah) No. 1 Tahun 2014 tentang Rencana Tata Ruang Wilayah Kab. Kepulauan Talaud Tahun 2014-2034, Kecamatan Salibabu diprioritaskan untuk Pengembangan dan Pengelolaan Kawasan Perikanan Tangkap karena potensi perikanan yang belum termanfaatkan ± 23.104 Ton/Tahun. Tahun 2017, Kecamatan Salibabu menempati urutan tertinggi untuk total produksi perikanan di Kabupaten Kepulauan Talaud. Total produksi perikanan Kecamatan Salibabu sebesar 702,3 ton atau 11,79 % dari keseluruhan produksi perikanan di Kabupaten Talaud. Dari total produksi tesebut 46,23 merupakan hasil produksi usaha soma pajeko. Mayoritas nelayan soma pajeko merupakan nelayan penuh yang mata pencaharian utamanya sebagai nelayan dan tidak memiliki pekerjaan lain. Masyarakat nelayan pada umumnya merupakan kelompok masyarakat yang relatif tertinggal secara sosial, ekonomi dan budaya bila dibandingkan dengan kelompok masyarakat lainnya. Demikian juga berlaku untuk masyarakat nelayan soma pajeko di Kecamatan Salibabu dimana penghasilan nelayan dibawah upah minimum Kabupaten kepulauan Talaud sebesar Rp. 1.500.000,-. Masyarkat nelayan soma pajeko di Kecamatan Salibabu masih terbelenggu oleh kemiskinan. Oleh karena itu dengan maksud bisa keluar dari kondisi tersebut perlu ada intervensi ekternal sebagai suatu dorongan untuk memberdayakan mereka.Penelitian ini menggunakan metode deskriptif, yaitu suatu metode dalam meneliti sekelompok manusia, suatu objek, suatu set kondisi, suatu system pemikiran ataupun suatu kelas peristiwa pada masa sekarang. Jenis data yang dikumpulkan terdiri dari data primer dan data sekunder. Pengumpulan data dilakukan melalui wawancara secara mendalam terhadap responden, pengisian kuesioner dan studi kepustakaan. Responden terdiri dari masyarakat nelayan soma pajeko di Kecamatan Salibabu. Analisis data menggunakan metode deskriptif untuk mengetahui kehidupan sosial ekonomi masyarakat dan analisis mengunakan rumus pendapatan digunakan untuk menganalisis tingkat pendapatan masyarakat nelayan soma pajeko.Hasil penelitian menunjukkan bahwa pendapatan bersih juragan soma pajeko di Kecamatan Salibabu rata- rata berkisar Rp86.784.000,-/tahun dan Rp. 10.608.840,-/tahun untuk pendapatan bersih masanae dengan hasil tangkapan utama berupa ikan Cakalang, Ikan Layang dan Ikan Tongkol.Kata kunci: Nelayan Soma Pajeko , Kecamatan Salibabu dan Tingkat Pendapatan


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Peter Jerome B. Del Rosario ◽  
Francesca Mitchel Ofilada ◽  
Rose Ann D. Vicente

PurposeThis paper analyzed the healthcare systems of the Philippines and Vietnam prior to the coronavirus disease 2019 (COVID-19) and their strategies on mass testing, contact tracing, quarantine procedures and information dissemination about the pandemic.Design/methodology/approachSteinmo's (2008) historical institutionalism approach was used in this paper. Secondary data gathering, document analysis and comparative process tracing were employed.FindingsThe findings revealed that Vietnam's implementation of its Law on Prevention and Control of Infectious Diseases in 2007, its relatively low-cost healthcare system, its efficient mass testing and contact tracing strategies and its science-based decisions are contributory to its success in handling the pandemic. Meanwhile, the Philippines failure to enact its Pandemic and All-Hazards Preparedness Act in 2013, its costly and dominantly private healthcare system, its heavy focus on strict, long lockdowns and its militarist methods to control the spread of the pandemic were found to be insufficient.Research limitations/implicationsDetailed study on the delivery of healthcare services in marginal areas, healthcare spending for COVID-19 positive individuals and information dissemination strategies about the pandemic were not explored.Practical implicationsHealth institutions can redesign their governance mechanisms by ensuring a cost-effective healthcare system and maximizing resource utilization to ensure efficient management of future pandemics. Moreover, national governments should not compromise their country's healthcare system over the economy during a pandemic.Originality/valueThis paper analyzed the countries' history of healthcare governance and its influence in handling COVID-19 compared to previous studies which only focused on the countries' strategies during the pandemic.


1992 ◽  
Vol 8 (2) ◽  
pp. 72-78
Author(s):  
Teresita Naval-Severino

This study represents the first phase of research being undertaken in the Philippines on gifted disadvantaged children. The subject of this paper focuses on the assessment tools and procedures employed for the screening and identification of intellectually able or “fast learners” among preschool Filipino children from disadvantaged urban communities. Preliminary screening involved nominations made by daycare teachers using checklists for giftedness. Parent ratings on giftedness were also obtained as a secondary data source for the final selection of fast learners. Children nominated by teachers were subjected to individual testing and evaluation. Results showed that over the two-year period of screening, three to four percent of the entire population of daycare children qualified as fast learners on the basis of teacher nominations and performance on two standardized tests of intelligence. Data also indicated that a greater percentage of children passed the Raven's Colored Progressive Matrices (RCPM) percentile ranking of 75 and above compared to the Wechsler Intelligence Scale for Children (WISC) Short Form IQ of 110. Findings further suggest the potential usefulness of the RCPM as an identification tool for fast learners among this population of children.


2020 ◽  
Vol 1 (2) ◽  
pp. 108-122
Author(s):  
Genta Mahardhika Rozalinna ◽  
Aulia Izzah Azmi

This paper discusses the evaluation of boundary-spanning on climate change ENGO International Greenpeace in Asia. The evaluation process uses secondary data from documents presented on the official website of Greenpeace, especially countries in Asia. These countries include Indonesia, Malaysia, the Philippines, Thailand, India, Japan, South Korea, and China. Evaluation of the boundary-spanning is obtained from the results of the mapping of all issues and campaigns related to climate change. The results: 1) limitation of the problem and identity of the campaigns carried out out all based on the ecological conditions of each country; 2) limitation organizational through institutional strengthening becomes the main focus in the pattern of movement, and tactical efforts are made through the publication of reports and analysis is step by step in various communication and action media.


2007 ◽  
pp. 61-72 ◽  
Author(s):  
Edwin Cedamon ◽  
Steve Harrison ◽  
John Herbohn

Information is essential in making marketing decisions. This paper presents an assessment of information concerning the timber market in Leyte Island, focusing on sources, how to access supply and demand information, and usefulness and limitations of available information. The sources of timber market information include (i) Philippine Forestry Statistics, (ii) a database of registered tree plantations, (iii) a barangay-based inventory of trees on farms, and (iv) tree measurements and data collected in the timber enterprise survey conducted by the ACIAR Tree Farm Project. Based on available secondary data, there are 27,635 ha of forest in Leyte that is potentially harvestable. In addition, based on the findings of the barangay-based tree farm inventory, there are approximately 2.7 M trees on tree farms on Leyte Island. Timber demand by entrepreneurs on Leyte Island has not been calculated yet from the available survey data of the ACIAR Tree Farmer Project; however, estimates show that the annual per capita timber consumption of the Philippines for 2005 was 7.8 board feet. It was found that although some secondary data on timber market information are available from government agencies, particularly the Department of Environment and Natural Resources, consumer and producer-level data are scarce. Most of the producer and consumer-level data available to date were gathered through the ACIAR Tree Farm Project.


2007 ◽  
pp. 73-90
Author(s):  
Ma. Regina Banaticla ◽  
Renezita Sales ◽  
Rodel Lasco

Estimation of the magnitude of sinks and sources of carbon requires reliable estimates of the biomass of forests and of individual trees. Equations for predicting tree biomass have been developed using secondary data involving destructive sampling in plantations (mostly less than 10 years of age) in several localities in the Philippines. These equations allow estimates of carbon sequestration to be made at much lower cost than would be incurred if detailed stand inventories were undertaken. The species included in the study reported here include Gmelina arborea Roxb., Paraserianthes falcataria (L.) Nielsen Swietenia macrophylla King and Dipterocarp species in Mindanao, and Leucaena leucocephala de Wit from Laguna, Antique, Cebu, Iloilo, Rizal, and Ilocos Sur. Non-linear regression was used to derive speciesspecific, site specific and generic equations between yield and diameter of the form y = αDβ. Equations were evaluated based on the correlation coefficient, standard error of estimate and residual plots. Regressions resulted in high r values (>0.90). In some cases, non-homogeneous variance was encountered. The generic equation improved estimates compared with models used in previous studies.


2015 ◽  
Vol 8 (1) ◽  
pp. 56-68 ◽  
Author(s):  
Oluwagbenga O.I. Orimoogunje ◽  
Janet Asifat

Abstract The continuous dependence of man on fuel and service wood has resulted in serious degradation of the fragile forest ecosystem. Therefore, this study evaluated the sources and patterns of fuel wood and examined the rate of consumption in the study area. This was with the aim to assess the ecological implications of fuelwood consumption on species degradation. The study utilized both, primary and secondary data. Information was extracted from topographic map on the scale of 1: 50,000 and satellites imageries that cover the study area. Questionnaire administration, field observation and weight measurement of fuel wood were carried out. The results showed that the sources of fuel wood for domestic cooking were forest, nearby bush and abandoned farm while the sources of domestic energy were fuel wood (61.17%), charcoal (27%), kerosene (10%), electricity (1.33%) and gas (0.5%). Fuel wood for small scale industries were: forest (49.23%), farmland (34.62) and fallow land (16.15%). The trend of fuel wood consumption was on the high side from 1995 to 2011, it was 58% in 1995, 70% in 2000, 82% in 2005 and 92% in 2010 and 2011 respectively. Many valuable economic tree species such as Triplochiton scleroxylon, Nesogordonia papaverifera, and Cordia spp. are near their extinction. Animals such as antelope, wolf and fox are going into extinction while monkey, grasscutter, hare, rabbit were endemic in the study area. The study concluded that the patterns of fuel wood use and fuel wood saturation presents a great danger for biodiversity products and services.


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