scholarly journals Status and economic valuation of ecosystem services of Tanguar haor: A wetland of Bangladesh

2018 ◽  
Vol 16 (2) ◽  
pp. 237-243
Author(s):  
HM Solayman ◽  
Md Abdul Baten ◽  
Md Badiuzzaman Khan
Keyword(s):  
Ecosystem Services ◽  
Social Relations ◽  
Anthropogenic Activities ◽  
Land Use Changes ◽  
Economic Valuation ◽  
Economic Value ◽  
Health Benefit ◽  
Anthropogenic Factors ◽  
Baseline Survey ◽  
The Impact

Tanguar haor wetland is one of the listed Ramsar sites enrich with biodiversity variety and provides several ecosystem services with significant contribution to the national economy of Bangladesh. But these services were decreasing day by day due to natural and anthropogenic activities. The purposes of this study were to identify the utilized ecosystem services by communities, economic values of utilized ecosystem services and the basic reasons for depleting of ecosystem services. Data were collected through baseline survey, checklists, face to face questionnaire survey and focus group discussion (FGD) from 120 residential respondents and 50 tourist respondents by accepting random sampling techniques during November, 2016 to September, 2017. Physiochemical characteristics of the water were determined where the mean temperature and pH were 28.26°C and 7.72 respectively. The highest TDS, EC, DO, NO3 and PO4 values were 1020 (mg L−1), 1460 (μS cm−1), 8.56 (mg L−1), 1.769 (mg L−1) and 0.078 (mg L−1), respectively. Commonly utilized ecosystem services were crops, vegetables, fuel, fresh water, fishes and migratory birds, climate regulation, water purification, natural hazards protection, aesthetic, social relations, recreation & tourism, health benefit, primary production, nutrient cycling, water cycling habitats for species and provision of habitat etc. Market Value Method (MVM) and Contingent Value Method (CVM) were applied to measure the economic value of Tanguar haor wetland services. DPSIR framework and Impact Matrix (IM) were applied for conceptual analysis to identify the effects on ecosystem services. Total economic value of 39 ecosystem services of Tanguar haor was estimated at 174039980 BDT year−1. Mismanagement of biodiversity, over exploitation, sedimentation of haor, climate change, illegal hunting, land use changes and habitat changes were the responsible factors for depleting ecosystem services. The impact factor (4.161) was identified by natural and anthropogenic factors on ecosystem services. There have a vast prospect of the Tanguar haor wetland services for near communities. Finally the research suggested several sustainable management approaches which have the potentiality to protect the services of the wetland.J. Bangladesh Agril. Univ. 16(2): 237-243, August 2018

scholarly journals Drivers of Timberline Dynamics in Rodna Montains, Northern Carpathians, Romania, over the Last 131 Years

2021 ◽  
Vol 13 (4) ◽  
pp. 2089
Author(s):  
Dumitru Mihăilă ◽  
Petruț-Ionel Bistricean ◽  
Vasilică-Dănuț Horodnic
Keyword(s):  
Anthropogenic Activities ◽  
Land Use Changes ◽  
Aerial Photographs ◽  
Anthropogenic Factors ◽  
Anthropogenic Pressure ◽  
Northern Slope ◽  
Southern Slope ◽  
Eastern Carpathians ◽  
Upper Timberline ◽  
The Impact

Currently, there is little information regarding the recent spatiotemporal dynamics of upper timberline in the Carpathian Mountains. We reconstructed the temporal (1887–2018) and spatial dynamics of upper timberline in the Rodna Mountains (Eastern Carpathians) based on seven sets of maps and aerial photographs and explained its variability in relation to three main drivers: air temperature, land morphometry and anthropogenic pressure. The impact of natural drivers (temperature, morphometry) on timberline position was evaluated using a high-resolution digital elevation model, local and regional instrumental and modelled climate databases. The impact of anthropogenic factors on timberline position was documented from published sources such as local paleolimnological studies and historical documents. Results show that timberline rose on average with 113 ± 2 m on the northern slope of the Rodna Mts (currently reaching 1640 m above sea level (a.s.l.)) and with 182 ± 2 m on the southern slope (up to an elevation of 1539 m a.s.l.). Our results suggest that this pattern might be connected with the rising temperature over the recent decades. On the northern slope where land morphometry restricts anthropogenic activities, timberline reached the highest elevation. On the more accessible southern slope, anthropogenic land-use changes likely moderated timberline elevational rise under increasing temperatures.

Trophic and functional organization of the benthic macrofauna in the lagoon of Boughrara – Tunisia (SW Mediterranean Sea)

2014 ◽  
Vol 95 (4) ◽  
pp. 647-659 ◽  
Author(s):  
Ines Khedhri ◽  
Hanem Djabou ◽  
Ahmed Afli
Keyword(s):  
Functional Organization ◽  
Anthropogenic Activities ◽  
Benthic Macrofauna ◽  
Anthropogenic Factors ◽  
Deposit Feeders ◽  
Trophic Resources ◽  
Open Sea ◽  
Seasonal Monitoring ◽  
Lagoon Environment ◽  
The Impact

The lagoon of Boughrara is the largest lagoon in Tunisia. For several decades it has been subject to the impact of increasing anthropogenic activities, and also to environmental stressors due to climate change and the low renewal of its waters. The present work is a contribution to the study of the functional organization of the benthic macrofauna of the lagoon of Boughrara 3 years after the extension of the channel ‘El Kantra’ which connects this lagoon to the open sea. In total, 13 stations facing the main prospective sources of disturbance and in areas likely to be more polluted were seasonally sampled during 2009–2010. Seasonal monitoring of the abiotic parameters shows a spatial heterogeneity linked to environmental and anthropogenic factors, including hydrodynamics, sedimentary texture and anthropogenic activities. The community of benthic macrofauna is generally poorly diversified at lagoonal-marine stations undergoing influences of both the marine and lagoon environment. The extreme seasons in terms of temperature and salinity seem to have an important role in the reduction of biodiversity in the lagoon of Boughrara. The trophic structure of the macrobenthic community is generally dominated by selective deposit feeders, and seems to be linked more to the availability of trophic resources than to disturbance.

scholarly journals Toward Decision-Making Support: Valuation and Mapping of New Management Scenarios for Tunisian Cork Oak Forests

Forests ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 197
Author(s):  
Mariem Khalfaoui ◽  
Hamed Daly-Hassen ◽  
Boutheina Stiti ◽  
Sihem Jebari
Keyword(s):  
Decision Making ◽  
Spatial Distribution ◽  
Ecosystem Services ◽  
Economic Value ◽  
Cork Oak ◽  
Decision Makers ◽  
Management Scenarios ◽  
Density Decrease ◽  
Mediterranean Countries ◽  
The Impact

Forest ecosystems are an important anthropogenic pillar to human wellbeing, providing a multitude of ecosystem services. In Mediterranean countries, where climate change effects are exponentially increasing, the value of the forest ecosystem services is even higher and their preservation is more crucial. However, the biophysical and economic value of such services is usually not observable due to their non-marketable characteristics, leading to their underestimation by decision-makers. This paper aims to guide decision-making through a set of new management scenarios based on ecosystem services’ values and their spatial distribution. It is a cumulative multidisciplinary study based on biophysical models results, economically valued and implemented using the geographic information system (GIS) to analyze spatial data. The investigation was based on a biophysical and economic valuation of cork, grazing, carbon sequestration and sediment retention as a selection of ecosystem services provided by cork oak forest (Ain Snoussi, Tunisia). The valuation was made for the actual situation and two management scenarios (density decrease and afforestation of the shrub land), with emphasis on their spatial distribution as a basis to new management. The total economic value (TEV) of the investigated services provided by Ain Snoussi forest (3787 ha) was €0.55 million/year corresponding to €194/ha/year. The assessment of two different scenarios based on the land cover changes showed that the afforestation scenario provided the highest TEV with €0.68 million/year and an average of €217/ha, while the density decrease scenario provided €0.54 million/year and an average of €191/ha. Such results may orient decision-makers about the impact new management may have, however they should be applied with caution and wariness due to the importance of the spatial dimension in this study.

scholarly journals The Elusive Quest for Valuation of Coastal and Marine Ecosystem Services

Water ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1518 ◽  
Author(s):  
J. Walter Milon ◽  
Sergio Alvarez
Keyword(s):  
Ecosystem Services ◽  
Marine Ecosystem ◽  
Economic Valuation ◽  
Economic Value ◽  
Terrestrial Ecosystems ◽  
Services Research ◽  
Goods And Services ◽  
Geophysical Processes ◽  
Marine Ecosystem Services ◽  
Policy And Planning

Coastal and marine ecosystem (CME) services provide benefits to people through direct goods and services that may be harvested or enjoyed in situ and indirect services that regulate and support biological and geophysical processes now and in the future. In the past two decades, there has been an increase in the number of studies and journal articles designed to measure the economic value of the world’s CME services, although there is significantly less published research than for terrestrial ecosystems. This article provides a review of the literature on valuation of CME services along with a discussion of the theoretical and practical challenges that must be overcome to utilize valuation results in CME policy and planning at local, regional, and global scales. The review reveals that significant gaps exist in research and understanding of the broad range of CME services and their economic values. It also raises questions about the validity of aggregating ecosystem services as independent components to determine the value of a biome when there is little understanding of the relationships and feedbacks between ecosystems and the services they produce. Finally, the review indicates that economic valuation of CME services has had a negligible impact on the policy process in four main regions around the world. An alternative direction for CME services research would focus on valuing the world’s CME services in a wealth accounting framework.

An economic valuation of ecosystem services provided by the River Turia Natural Park (Valencia)

2019 ◽  
Vol 18 (2) ◽  
pp. 93
Author(s):  
V. Estruch-Guitart ◽  
A. Valls-Civera
Keyword(s):  
Ecosystem Services ◽  
Analytical Hierarchy Process ◽  
Ethical Issues ◽  
Economic Valuation ◽  
Economic Value ◽  
Analytic Network Process ◽  
Valuation Method ◽  
Natural Park ◽  
Network Process ◽  
Hierarchy Process

<p>The objective of this paper is to obtain the monetary value of ecosystem services provided by the Turia Natural Park (TNP). This paper proposes the use of the Analytic Multicriteria Valuation Method (AMUVAM) by replacing the Analytical Hierarchy Process (AHP) with the Analytic Network Process (ANP), since the ANP method allows to analyze interdependence relationships between the services provided by a system. The results express that the economic value of the ecosystem services associated to the TNP ranges between 163,946,752 € and 481,549,597 €. The results reveal distinct patterns in the valuation of the existing services due to ethical issues.</p>

scholarly journals Dampak Kegiatan Pariwisata terhadap Status Tutupan Terumbu Karang dan Valuasi Ekonomi di Kepulauan Karimunjawa The Impact of Tourism Activities on The Status of Coral Reef Cover and Economic Valuation in Karimunjawa Island

2020 ◽  
Vol 9 (1) ◽  
pp. 72-80
Author(s):  
Ary Hendri Pribadi ◽  
Suryanti Suryanti ◽  
Churun Ain
Keyword(s):  
Coral Reef ◽  
Coral Reefs ◽  
Coral Cover ◽  
Economic Valuation ◽  
Economic Value ◽  
Travel Cost ◽  
Travel Cost Method ◽  
The Status ◽  
The Impact ◽  
Line Intercept

ABSTRAK Pulau Karimunjawa adalah salah satu objek destinasi wisata keindahan ekosistem terumbu karang. Kunjungan wisatawan di Karimunjawa dapat berdampak pada terumbu karang dan nilai ekonomi pariwisata. Penelitian ini dilaksanakan pada April-Mei 2019 di Kepulauan Karimunjawa, Kabupaten Jepara. Tujuan dari penelitian ini untuk mengetahui dampak pariwisata terhadap nilai status tutupan terumbu karang dengan menggunakan metode Line Intercept Transect (LIT) di Pulau Tanjung Gelam, Pulau Menjangan Besar dan Pulau Cemara Kecil serta nilai valuasi ekonomi pariwisata dengan menggunakan metode biaya perjalanan atau Travel Cost Method (TCM). Hasil yang didapatkan dari penelitian ini yaitu jumlah kunjungan wisatawan yang datang ke Pulau Karimunjawa meningkat sejak tahun 2016 hingga tahun 2018. Kondisi status tutupan terumbu karang yang diperoleh dalam kondisi baik dengan nilai karang hidup yang didapatkan pada Pulau Tanjung Gelam 61,6%, Pulau Menjangan Besar 70,8% dan Pulau Cemara Kecil 57,3%. Luasan terumbu karang pada tahun 2016 hingga tahun 2018 di Pulau Mejangan Besar dan Cemara Kecil mengalami penurunan. Sedangkan nilai valuasi ekonomi tahun 2016 sejumlah Rp.125.426.860,- 2017 dan 2018 sejumlah Rp.135.437.480,- dan Rp.156.932.039,-. Dampak wisatawan yang berkunjung tahun 2016-2018 pada valuasi ekonominya tiap tahunnya mengalami peningkatan. Hasil nilai valuasi ekonomi yang didapatkan pada penelitian ini,nilai rata-rata TCM pada wilayah Kabupaten Jepara Rp.1.111.023,- dan nilai ekonomi pertahunnya Rp.3.369.031.988,-. Rata-rata biaya perjalanan luar wilayah Kabupaten Jepara Rp.1.146.314,- dan nilai biaya pertahunnya Rp.12.324.171.938,-. Nilai total valuasi ekonomi dari dalam wilayah Kabupaten Jepara dan luar wilayah Kabupaten Jepara yaitu Rp.156.693.203.925,-. ABSTRACT Karimunjawa Island is one of the tourist destinations of the beauty of the coral reef ecosystem. Tourist visits in Karimunjawa can have an impact on coral reefs and the economic value of tourism. This research was conducted in April-May 2019 in the Karimunjawa Islands, Jepara Regency. The purpose of this study was to determine the impact of tourism on the status of coral cover status using the Line Intercept Transect (LIT) method on Tanjung Gelam Island, Menjangan Besar Island and Cemara Kecil Island and the economic valuation value of tourism using the travel cost method or the Travel Cost Method ( TCM). The results obtained from this study are the number of tourist arrivals to Karimunjawa Island increased from 2016 to 2018. The status of coral cover status obtained in good condition with the value of live coral obtained on Pulau Tanjung Gelam 61.6%; Pulau Menjangan Besar 70.8% and Pulau Cemara Kecil 57.3%. The extent of coral reefs in 2016 to 2018 on Pulau Mejangan Besar and Pulau Cemara Kecil declined. While the value of economic valuations in 2016 amounted to Idr.125,426,860,- 2017 and 2018 amounted to Idr.135,437,480,- and Idr.156,932,039,-. The impact of tourists visiting 2016-2018 on their economic valuations has increased each year. The results of the economic valuation obtained in this study, the average value of TCM in the Jepara Regency region is Idr.1,111,023, and the annual economic value is Idr.3,369,031,988. The average cost of trips outside the area of Jepara Regency is Idr.1,146,314, and the annual cost is Idr.12,321,171,938. The total value of economic valuations from within the Jepara Regency and outside the Jepara Regency is Idr.156,693,203,925. 

scholarly journals Increasing capacity to produce scenarios and models for biodiversity and ecosystem services

2020 ◽  
Vol 20 (suppl 1) ◽  
Author(s):  
Isabel M.D. Rosa ◽  
Carolyn J. Lundquist ◽  
Simon Ferrier ◽  
Rob Alkemade ◽  
Paula F. Drummond de Castro ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Postgraduate Training ◽  
Anthropogenic Activities ◽  
Well Being ◽  
Decision Makers ◽  
Special Issue ◽  
Drivers Of Change ◽  
Training Schools ◽  
Forestry Products ◽  
The Impact

Abstract: Extensive anthropogenic activities driven by the demand for agriculture and forestry products have led to dramatic reductions in biodiversity worldwide and significant changes in the provisioning of ecosystem services. These trends are expected to continue in the future as the world continues to develop without much consideration of the role that nature plays in sustaining human livelihoods. Scenarios and models can be important tools to help policy- and decision-makers foresee the impact of their decisions; thus, increasing capacity in creating such models and scenarios is of utmost importance. However, postgraduate training schools that focus on this topic are still rare. Here we present and reflect on the experience of the São Paulo School of Advanced Science on Scenarios and Modelling on Biodiversity and Ecosystem Services to Support Human Well-Being (SPSAS Scenarios). In addition, we introduce the Special Issue of Biota Neotropica that resulted from the activities taking place during the SPSAS Scenarios. In total, nine case studies emerged from the activities carried out during SPSAS Scenarios. These focused on a variety of ecosystems, their current drivers of change and expected trends, as well as on the development of alternative positive scenarios applying the recently developed Nature Futures Framework. We emphasize the need to increase capacity in scenario and modelling skills in order to address some of the existing gaps in producing policy-relevant scenarios and models for biodiversity and ecosystem services.

scholarly journals An economic valuation of ecosystem services provided by the River Turia Natural Park (Valencia)

2019 ◽  
Vol 18 (2) ◽  
pp. 93
Author(s):  
V. Estruch-Guitart ◽  
A. Valls-Civera
Keyword(s):  
Ecosystem Services ◽  
Analytical Hierarchy Process ◽  
Ethical Issues ◽  
Economic Valuation ◽  
Economic Value ◽  
Analytic Network Process ◽  
Valuation Method ◽  
Natural Park ◽  
Network Process ◽  
Hierarchy Process

<p>The objective of this paper is to obtain the monetary value of ecosystem services provided by the Turia Natural Park (TNP). This paper proposes the use of the Analytic Multicriteria Valuation Method (AMUVAM) by replacing the Analytical Hierarchy Process (AHP) with the Analytic Network Process (ANP), since the ANP method allows to analyze interdependence relationships between the services provided by a system. The results express that the economic value of the ecosystem services associated to the TNP ranges between 163,946,752 € and 481,549,597 €. The results reveal distinct patterns in the valuation of the existing services due to ethical issues.</p>

scholarly journals Economic Valuation of Mangrove Ecosystem Services in Mandah District of Riau Province

2020 ◽  
Vol 007 (02) ◽  
pp. 142-156
Author(s):  
Hades Mandela ◽  
◽  
Achmad Fahrudin ◽  
Gatot Yulianto ◽  
Keyword(s):  
Ecosystem Services ◽  
Economic Valuation ◽  
Economic Value ◽  
Mangrove Ecosystem ◽  
Survey Method ◽  
Cultural Services ◽  
Mangrove Ecosystems ◽  
Total Economic Value ◽  
The Cost ◽  
Provisioning Services

Mangrove ecosystems become an important ecosystem for the community of Mandah district, this is because the community uses the mangrove ecosystem as a producer of mangrove wood, as well as a place to catch fish, shrimp, and crabs. Therefore, it is important to maintain the sustainability of mangrove ecosystems in multiple ways; one option is by providing an economic report regarding the mangrove ecosystem. The purpose of this study is to estimate the economic value of mangrove ecosystems. This research was conducted in Mandah District using the survey method. Data analysis using economic valuation by calculating the total economic value of mangrove ecosystem services, comprising: supporting services, provisioning services, regulating services, and cultural services. The results showed that the total economic value of mangrove ecosystem services which has an area of 31,007 Ha amounting to IDR 6,100,130,675,685/year or IDR 196,733,985/Ha/year consisting of the value of supporting services amounting to IDR 2,843,521,034,280/year, the value of provisioning services IDR 120,274,922,887/year, the cost of regulatory services is IDR 3,132,894,718,518/year, and the value of cultural services is IDR 3,440,000,000/year. The high economic value of regulating and supporting services indicates that the mangrove ecosystem has a high value of environmental services, so it needs to be preserved and the sustainability of the mangrove ecosystem to remain of high economic value.

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