scholarly journals Validity of the Fisher Community Knowledge-Based Economic Valuation of the Local Ecosystem for Oyster Farming: A Case Study in Japan

2022 ◽  
Vol 8 ◽  
Author(s):  
Junpei Shinji ◽  
Ryutaro Kamiyama ◽  
Tsubasa Nakamura ◽  
Kenshiro Yamanaka ◽  
Takahiro Matsui
Keyword(s):  
Economic Evaluation ◽  
Local Knowledge ◽  
Information Source ◽  
Economic Valuation ◽  
Economic Value ◽  
Outer Part ◽  
Relevant Information ◽  
High Price ◽  
Human Society ◽  
Ecological Conservation

The importance of local knowledge as a relevant information resource for ecosystem conditions has recently been the focus of sustainable ecosystem management. However, the accuracy of economic evaluation based on local knowledge regarding ecosystems has not yet been discussed, despite most activities in human society, including ecological conservation, being monetarily mediated. This study reports the correspondence between the economic value estimated by the fisher community and the analyzed environmental factors in the marine areas sectioned for oyster farming in Japan. At the study site, community-agreed usage fees for the area sections showed a gradient from the inner to the outer part of the bay. Our numerical modeling showed that the gradient of the economic value correlated with oyster feeding efficiency, indicating that a better location for feeding was empirically evaluated at a high price by the local fisher community. This suggests that the economic evaluation based on the local knowledge was biologically reasonable and could be a reliable information source for the aim of the area use in the study site.

scholarly journals Economic Valuation for Cultural and Passive Ecosystem Services Using a Stated Preference (Contingent Valuation Method (CVM)) Case of the Elgeyo Watershed Ecosystem, Kenya

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Justus E. Eregae ◽  
Paul Njogu ◽  
Rebecca Karanja ◽  
Moses Gichua
Keyword(s):  
Ecosystem Services ◽  
Stated Preference ◽  
Contingent Valuation Method ◽  
Economic Valuation ◽  
Economic Value ◽  
Valuation Method ◽  
Significant Difference ◽  
Use Values ◽  
Ecological Conservation ◽  
Passive Use Values

Valuation of ecosystem services (ESs) can be typical as use values and passive use values. However, the prevailing conventional markets provide economic instruments such as price tags to ecosystem use values, but rarely on passive use values. This is limited since it does not provide comprehensive ecological values that will adequately support rational decision-making processes regarding ecological conservation. The study adopted the contingency valuation method (CVM) where three hundred and eighty households of communities living within the Elgeyo watershed were sampled. The findings recorded 97% of the population was willing to pay for the ESs quoted. Individual maximum WTP ranged between 1 USD and 57.1 USD (cultural), 1 USD and 95.2 USD (bequest), and 1 USD and 76.2 USD (biodiversity conservation). The overall mean maximum WTP was 7.4 ± 0.34 USD, 9.1 ± 0.49 USD, and 11.1 ± 0.68 USD for the cultural, bequest, and biodiversity, respectively. The multivariate regression (maximum WTP as a function of administrative location, education, income, sex, age, and livestock number) exhibited a significant difference regardless of multivariate criteria used, where Wilks’ lambda has F (75,203) = 4.03, p < 0.001 . The findings provide an economic value for nonuse values that can be incorporated in total economic valuation (TEV) studies locally as well as provide an impetus on payment of ecosystem services (PES) in Kenya.

scholarly journals Projecting Basin-Scale Distributed Irrigation and Domestic Water Demands and Values: A Generic Method for Large-Scale Modeling

2016 ◽  
Vol 02 (04) ◽  
pp. 1650023 ◽  
Author(s):  
Noémie Neverre ◽  
Patrice Dumas
Keyword(s):  
Irrigation Water ◽  
Large Scale ◽  
Potential Evapotranspiration ◽  
Demand Curve ◽  
Economic Valuation ◽  
Economic Value ◽  
Expansion Method ◽  
Domestic Water ◽  
Water Demands ◽  
Basin Scale

This paper presents a methodology to project irrigation and domestic water demands on a regional to global scale, in terms of both quantity and economic value. Projections are distributed at the water basin scale. Irrigation water demand is projected under climate change. It is simply computed as the difference between crop potential evapotranspiration for the different stages of the growing season and available precipitation. Irrigation water economic value is based on a yield comparison approach between rainfed and irrigated crops using average yields. For the domestic sector, we project the combined effects of demographic growth, economic development and water cost evolution on future demands. The method consists in building three-part inverse demand functions in which volume limits of the blocks evolve with the level of GDP per capita. The value of water along the demand curve is determined from price-elasticity, price and demand data from the literature, using the point-expansion method, and from water cost data. This generic methodology can be easily applied to large-scale regions, in particular developing regions where reliable data are scarce. As an illustration, it is applied to Algeria, at the 2050 horizon, for demands associated to reservoirs. Our results show that domestic demand is projected to become a major water consumption sector. The methodology is meant to be integrated into large-scale hydroeconomic models, to determine inter-sectorial and inter-temporal water allocation based on economic valuation.

scholarly journals Total Economic Value of Natural Capital - A Case Study of Piatra Craiului National Park

2013 ◽  
Vol 41 (2) ◽  
pp. 608 ◽  
Author(s):  
Bogdan POPA ◽  
Claudiu COMAN ◽  
Stelian A. BORZ ◽  
Dan M. NITA ◽  
Codrin CODREANU ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Protected Areas ◽  
National Park ◽  
Natural Capital ◽  
Economic Value ◽  
Relevant Information ◽  
Distribution Analysis ◽  
Economic Sectors ◽  
Economic Implications ◽  
Total Economic Value

In the last two decades different methodologies for assessing the economic implications of protected areas have been developed within the framework of "Total Economic Value", taking into account not only goods and services that have a price and a market but also those not priced or marketed. The present paper, by using a number of recognized methodologies applied by environmental economists around the world, estimates the economic value of ecosystem services of Piatra Craiului National Park, in one of the first attempts to frame ecosystem services valuation in Romania. The approach and results include a benefit distribution analysis, for both the economic sectors and the groups of beneficiaries. Even if the data are not comprehensive and depend on several assumptions, the paper provides very important practical and policy-relevant information on the economic value of Piatra Craiului National Park, in an attempt to stimulate increasing of the budgetary allocation and economic policy priority for protected areas in Romania.

scholarly journals Sustainability of Seahorses: Lessons Learned of Local Wisdom from Bintan Islands, Riau Islands Province

2018 ◽  
Vol 47 ◽  
pp. 07001
Author(s):  
Fitria Ulfah ◽  
Afrizal ◽  
Arief Pratomo
Keyword(s):  
Local Knowledge ◽  
Sea Water ◽  
Group Discussion ◽  
Economic Value ◽  
Lessons Learned ◽  
Coastal Communities ◽  
Ecological Knowledge ◽  
Local Institution ◽  
Reproduction Pattern ◽  
Depth Interviews

Seahorse (Hippocampus spp.) has a high economic value in Bintan Island that leads to its exploitation by coastal community intensively. This study was to assess local knowledge on seahorse ecology which was captured across shoreline near the coastal communities. The research was conducted in SebongPereh village Bintan Island. The data were collected by conducting depth interviews and focus group discussion on seahorse fishermen which was selected purposively. The results revealed local fishermen have ecological knowledge related to habitat types, behavior, and monthly variation in abundance, size and reproduction pattern. The result also showed that the existence of the seahorse during the catch season moves around, follow the condition of the seaweed and tidal of sea water. This local knowledge was used by fishermen as a strategy in determining the fishing time and catchment area of a seahorse. Through such local wisdom, local fishing communities established a local institution to manage conversation and sustainability use of seahorse in waters of SebongPereh village.

scholarly journals VALUASI EKONOMI DAN ANALISIS KESESUAIAN WISATA DI PANTAI SIGANDU DESA KLIDANG LOR KABUPATEN BATANG Economic Valuation and Tourism Suitability Analysis in Sigandu Beach, Klidang Lor Village, Batang Regency

2019 ◽  
Vol 8 (3) ◽  
pp. 147-154
Author(s):  
Diah Hanifah ◽  
Anhar Solichin ◽  
Churun Ain
Keyword(s):  
Economic Valuation ◽  
Economic Value ◽  
Travel Cost ◽  
Primary Data ◽  
Travel Cost Method ◽  
Limiting Factor ◽  
Suitability Analysis ◽  
Suitability Index ◽  
Index Value ◽  
Age Range

 ABSTRAK Pantai Sigandu merupakan objek wisata alam yang sangat potensial. Keberadaan Pantai Sigandu mampu membantu perekonomian daerah Kabupaten Batang. Mengingat pentingnya keberadaan objek wisata tersebut maka diperlukan suatu kajian yang mampu mengestimasi besarnya nilai ekonomi dari kegiatan wisata di Pantai Sigandu, serta menganalisa kesesuaian wisata pantai untuk rekreasi agar dapat digunakan dalam pengembangan dan pengelolaan objek wisata tersebut. Penelitian ini dilaksanakan pada bulan Desember 2018 - Januari 2019 dengan bertujuan untuk mengetahui profil dan tipologi wisatawan; menghitung nilai ekonomi pariwisata berdasarkan Travel Cost Method (TCM); dan menganalisa kesesuaian wisata berdasarkan Indeks Kesesuaian Wisata (IKW). Penelitian ini bersifat kuantitatif, dengan metode pengambilan data primer menggunakan teknik wawancara terhadap 100 wisatawan, dengan bantuan kuisioner serta melakukan sampling lapangan untuk analisis kesesuaian wisata. Hasil penelitian menunjukkan bahwa karakteristik wisatawan memiliki kisaran usia 20-40 tahun dengan tingkat pendidikan SMA/SMK. Nilai ekonomi yang diperoleh berdasarkan metode biaya perjalanan atau TCM di Pantai Sigandu yaitu sebesar Rp. 31.038.289.140,00 per tahun dengan biaya rata-rata sebesar Rp. 120.140,00 per individu. Nilai Indeks Kesesuaian Wisata (IKW) Pantai Sigandu termasuk dalam kategori sangat sesuai (S1) yaitu tidak memiliki faktor pembatas dalam suatu penggunaan tertentu secara lestari, atau hanya memiliki pembatas yang kurang berarti dan tidak berpengaruh secara nyata. ABSTRACT Sigandu Beach is a potential natural tourism object. The existence of Sigandu Beach is able to increase the economy of the Batang Regency. The existence of a tourism object is important, so it is needed a study to estimate the tourism economic value of Pantai Sigandu, as well as to analyze the suitability of coastal tourism for recreation so that it can be used in development and management of this tourism object. This study was conducted in December 2018 - January 2019. It aims to find out the profile and typology of tourists; to calculate the economic value of tourism based on Travel Cost Method (TCM); and to analyze tourist suitability based on the Tourism Suitability Index. This study is a quantitative with a primary data method use a interview technique for 100 tourist with the help of questionnaires and do measures of the field for Tourism Suitability Analysis. Results of the study show that characteristics of tourist respondents have an age range of 20-40 years old with high school/ vocational education level. The economic value was obtained based on TCM in the Sigandu Beach, which is Rp. 31,038,289,140.00 per year with an average cost of Rp. 120,140.00 per individual. The Tourism Suitability Index value in the Sigandu Beach is included in the very appropriate category (S1), it does not have a limiting factor in a particular use sustainably, or it only has a less significant limitation and does not have a significant effect.

scholarly journals REHABILITASI HUTAN DAN LAHAN BERDASARKAN KEARIFAN LOKAL SUKU MOILE DAN SUKU MEYAH DI KABUPATEN MANOKWARI PROVINSI PAPUA BARAT (Rehabilitation of Forest and Land Based On Local Knowledge of Moile and the Meyah in Manokwari Regency West Papua Province)

2017 ◽  
Vol 24 (3) ◽  
pp. 141
Author(s):  
Mervin Arison Asmuruf ◽  
Ris Hadi Purwanto ◽  
Lies Rahayu Wijayanti Faida
Keyword(s):  
Local Knowledge ◽  
Local Community ◽  
Economic Value ◽  
Combination Method ◽  
Snowball Sampling ◽  
Durio Zibethinus ◽  
Aquilaria Malaccensis ◽  
Nephelium Lappaceum ◽  
West Papua ◽  
Papua Barat

ABSTRAKKajian Rehabilitasi Hutan dan Lahan (RHL) di Kabupaten Manokwari Provinsi Papua Barat telah dilakukan dengan berdasarkan kearifan lokal Suku Moile dan Suku Meyah. Penelitian ini bertujuan untuk mengetahui jenis–jenis tanaman lokal, indentifikasi kearifan lokal masyarakat Suku Moile dan Suku Meyah dan merumuskan strategi RHL berdasarkan kearifan lokal masyarakat. Penelitian ini dilakukan di Kampung Sub Sai Distrik Warmare dan Kampung Lebau Distrik Manokwari Utara Kabupaten Manokwari Provinsi Papua Barat. Teknik pengambilan data adalah pendekatan metode kombinasi data primer dan sekunder yang diperoleh melalui observasi lapangan, wawancara dengan teknik Snowball sampling dan penelusuran dokumen. Metode deskriptif dengan analisis Miles dan Huberman digunakan untuk mengidentifikasi kearifan lokal Suku Moile dan Suku Meyah. Hasil penelitian menunjukkan bahwa jenis-jenis tanaman lokal yang berpotensi digunakan dalam kegiatan RHL di Kabupaten Manokwari adalah: tanaman yang mempunyai kualitas kayu pertukangan yang baik dan memiliki nilai ekonomis tinggi, seperti: kayu besi (Intsia bijuga), kayu susu (Astonia sp), kayu matoa (Pometia sp).  Di samping tanaman yang buah dan kulitnya bernilai ekonomi tinggi sehingga dapat menambah penghasilan masyarakat, seperti: buah merah (Pandanus conoideus), Gaharu (Aquilaria malaccensis), Mangga (Manggifera indica), Rambutan (Nephelium lappaceum), Durian (Durio Zibethinus). Masyarakat Arfak pada kawasan ini memiliki nilai dan kearifan budaya Igya Ser Hanjob yang artinya berdiri menjaga batas. Kawasan hutan yang dimanfaatkan terbagi atas 4 (empat) bagian yakni Susti, Bahamti, Nimahamti dan Tumti, dengan fokus kegiatan RHL seharusnya dilakukan di Susti dan Nimahamti yang berfungsi sebagai kawasan penyangga.ABSTRACTStudy of the Forest and Land Rehabilitation (FLR) in Manokwari Regency West Papua Province have been done based on local knowledge of Moile and the Meyah. This research aims to know the type of local plants, identification the local wisdom of a tribal society Moile and Tribe Meyah and formulate the FLR strategy based on the wisdom of the local community. The study is done in sub sai vilagge warmare district and lebau vilagge manokwari the northern district manokwari counties provincial west papua. Techniques used in the data is the approach combination method through observation field, interviews with snowball sampling techniques and the tracing documents. Descriptive method with an analysis Miles and Huberman used to identify local knowledge of Moile and Meyah. The results showed that the local-crop potentially used FLR in the district Manokwari intsia bijuga asltonia sp, pometia .sp, where its have good quality for use as timber carpentry having high as well as economic value and Pandanus conoideus, Aquilaria malaccensis, Manggifera indica, Nephelium lappaceum, Durio Zibethinus which fruit and the skin can be utilized to add community incomes. The community arfak in this area has a value and culture igya wisdom similar hanjob which means keeping the limit stood, forest areas being utilized divided over 4 (four) : susti, bahamti, nimahamti and tumti , where RHL activities should be undertaken in susti and nimahamti because it can function as buffer area

scholarly journals The total economic value of forest ecosystem services in the tropical forests of Malaysia

2020 ◽  
Vol 22 (4) ◽  
pp. 485-503
Author(s):  
K.M. Nitanan ◽  
A. Shuib ◽  
R. Sridar ◽  
V. Kunjuraman ◽  
S. Zaiton ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Forest Ecosystem ◽  
Economic Value ◽  
Forest Products ◽  
Relevant Information ◽  
Goods And Services ◽  
Forest Ecosystem Services ◽  
Use Values ◽  
Non Timber Forest Products ◽  
Total Economic Value

Direct and indirect use of values and non-use values from forest ecosystem services perform an invaluable set of functions that cater to the needs of both living and non-living things. The values include market services obtained from timber and non-timber forest products, and non-market services (recreation, watershed protection and conservation value) were identified as components of the Total Economic Value (TEV). However, it is difficult to assign a monetary value to all goods and services provided by the forest. Failure to conserve the national park will result in the degradation of the forest and a reduction in the contribution of the forest ecosystem services to the community. Based on the result of this study, the TEV value of forest ecosystem services was estimated at RM 13 billion, and the estimation provides policy-relevant information for forest management and conservation purposes in Malaysia.

scholarly journals VALUASI EKONOMI OBJEK WISATA PANTAI WEDIOMBO KABUPATEN GUNUNGKIDUL YOGYAKARTA DENGAN PENDEKATAN TRAVEL COST Economic Valuation of Tourism Destination of Wediombo Beach Gunungkidul Regency Yogyakarta with Travel Cost Approach

2019 ◽  
Vol 8 (3) ◽  
pp. 203-210
Author(s):  
Theresia Panjaitan ◽  
Suradi Wijaya Saputra ◽  
Siti Rudiyanti
Keyword(s):  
Aquatic Ecosystems ◽  
Economic Valuation ◽  
Economic Value ◽  
Travel Cost ◽  
Travel Cost Method ◽  
Tourism Destination ◽  
Tourist Destination ◽  
Method Approach ◽  
Cost Economic ◽  
Average Individual

ABSTRAKPantai Wediombo terletak di  Desa Jepitu, Kecamatan Girisubo, Kabupaten Gunungkidul. Pantai Wediombo merupakan salah satu ekosistem perairan yang memiliki daya tarik untuk dapat dijadikan objek wisata. Manfaat yang diberikan oleh pantai Wediombo belum terukur secara ekonomi sehingga penting untuk dilakukan studi tentang besarnya nilai ekonomi kawasan wisata. Tujuan dari penelitian ini yaitu untuk mengetahui potensi dan nilai ekonomi Pantai Wediombso. Penelitian dilaksanakan pada bulan Maret 2019 di Pantai Wediombo. Penelitian menggunakan metode deskriptif. Pengumpulan data diperoleh melalui wawancara kepada 100 wisatawan dan 1 pengelola wisata menggunakan kuisioner dengan teknik sampling accidental sampling. Analisis valuasi ekonomi wisata menggunakan pendekatan Travel Cost Method. Potensi yang dimiliki oleh Pantai Wediombo mencakup keindahan dan kondisi daya tarik pantai termasuk dalam  kategori sangat baik, sarana dan prasarana yang sudah memadai, pelayanan pengelola yang cukup baik serta potensi budaya masyarakat seperti Upacara Ngalangi. Nilai ekonomi Pantai Wediombo sebesar Rp.52.787.622.096,00/tahun dengan rata-rata biaya perjalanan individu sebesar Rp. 208.296,00/kunjungan. ABSTRACTWediombo Beach located in Jepitu Village, Girisubo District, Gunungkidul Regency. Wediombo Beach is one of the aquatic ecosystems which has attraction that can be a good tourist destination. The benefits from Wediombo Beach were not yet measure in economic terms and it is important to study the magnitude of the economic value of tourist areas. The purpose of this research is to find out the potential and economic value of the beach. The research held on March at Wediombo Beach. The study used descriptive methods. Data obtained through interviews with 100 tourists and 1 tourism manager using questionnaires with accidental sampling. Analysis of tourism economic valuation using Travel Cost Method approach. The potential of Wediombo Beach including the beauty and conditions of coastal appeal is in a very good category, adequate facilities and infrastructure, good management services and potential cultural communities such as the Ngalangi ceremony. The economic value of Wediombo Beach based on tourist travel cost is about Rp.52.787.622.096.00 / year and average individual travel cost about Rp.208.296 / visit.

Economic Valuation of “Parak” Traditional Agroforestry West Sumatera (Case Study in Nagari Paninggahan, Solok Regency)

2021 ◽  
Vol 3 (3) ◽  
pp. 34-42
Author(s):  
Helmayuni ◽  
Mardianto
Keyword(s):  
Economic Valuation ◽  
Economic Value ◽  
Soil Layer ◽  
Secondary Data ◽  
Research Area ◽  
Primary Data ◽  
Domestic Water ◽  
Traditional Agroforestry ◽  
Direct Use

This study aims to determine the economic value, which is a direct and indirect benefit (tangible and intangible) of Parak in the research area. This research used a case study method, and the sampling was carried out in a purposive manner consisting of 50 sample farmers. The data used in this study are primary data and secondary data. Preliminary data were obtained by direct interviews with respondents based on the questionnaire provided, while secondary data were taken from agencies related to this research. The processing of data obtained in the field shows that Parak plays an important role in supporting the economy of farmers in Nagari Paninggahan either directly or indirectly. The direct use value obtained from the plant is IDR. 46,753,650 (66,316 per cent), from firewood of IDR. 23,070,000 (32,722 percent) and from livestock IDR. 678,550 (0.963 per cent) so that the total direct use income is IDR. 70,502,200 per year of all commodities cultivated by the sample farmers. Meanwhile, for indirect use, such as household/domestic water use, IDR. 13,312,320/year and agricultural irrigation water IDR. 54,052,111/year. The total indirect usage is IDR. 67,364,431,-. Per year. Agroforestry patterns can cover the soil layer well and have an effective influence on soil erosion control to increase the supply of water in the soil. Respondents have also carried out other conservation activities by constructing bench terraces, terracing systems, and other buildings to suppress sedimentation and erosion.

Uncertain Confidence Network-Based Collaborative Information Retrieval Relevance Feedback Algorithm

2020 ◽  
pp. 20-39
Author(s):  
Fatiha Naouar ◽  
Lobna Hlaoua ◽  
Mohamed Nazih Omri
Keyword(s):  
Information Retrieval ◽  
Relevance Feedback ◽  
Information Source ◽  
Strong Association ◽  
Relevant Information ◽  
User Query ◽  
Proposed Model ◽  
Evidence Source ◽  
Feedback Algorithm ◽  
Collaborative Information Retrieval

Collaborative retrieval allows increasing the amount of relevant information found and sharing history with others. The collaborative retrieval can reduce the retrieval time performed by the users of the same profile. This chapter proposes a new relevance feedback algorithm to collaborative information retrieval based on a confidence network, which performs propagation relevance between annotations terms. The main contribution in this work is the extraction of relevant terms to reformulate the initial user query considering the annotations as an information source. The proposed model introduces the concept of necessity that allows determining the terms that have strong association relationships estimated to the measure of a confidence. Since the user is overwhelmed by a variety of contradictory annotations, another contribution consists of determining the relevant annotations for a given evidence source. The experimental study gives very encouraging results.

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