scholarly journals Urban Development and its Implications on Wetland Ecosystem Services in Ndop, Cameroon

2017 ◽  
Vol 7 (1) ◽  
pp. 21 ◽  
Author(s):  
Sunday Shende Kometa ◽  
Jude Ndzifon Kimengsi ◽  
Dereck M. Petiangma
Keyword(s):  
Ecosystem Services ◽  
Urban Development ◽  
Urban Space ◽  
Land Use Planning ◽  
Wetland Management ◽  
Scientific Information ◽  
Negative Relationship ◽  
Human Society ◽  
Wetland Ecosystem ◽  
Landsat Images

Wetlands provide a diversity of ecosystem services (provisioning, regulatory, supporting and cultural services) which are essential for the human society. This is particularly necessary in cases where large urban agglomerations exist. These services are increasingly coming under pressure as a result of rapid and uncontrolled urban development which remains phenomenal in the developing world. Cameroon can boast of a number of wetland environments particularly, the Waza Logone flood plain, the wetlands of the Bakassi Peninsula, Lake Barombi Mbo and the Ndop Plains. The wetland ecosystems of the Ndop Plains have increasingly come under pressure as a result of urban development which is mirrored in population growth, housing and other infrastructural developments. While significant research works have been undertaken on aspects related to wetlands, agriculture and climate variability in the Ndop plains, there is insufficiency scientific information on the implications of urban development on wetland ecosystem services. Using questionnaire (where we systematically sample 140 households) and Landsat images which were complemented by field observations, relevant data were generated. With the aid of SPSS (version 21), the correlation between wetland ecosystem services and urban development at 0.05 level of significance was analysed. Our results reveal a significant negative relationship (r = -0.551 and -0.682) between urban development and the state of wetlands and their ecosystem services. This was further buttressed by geospatial data which revealed that the Ndop urban space increased from 3.7km2 in 1999 to 11.7km2 in 2017. In this regard, we suggest that the coordination of the urban development process through land use planning and zoning is imperative in the face of unabated urban development. We equally suggest the need to implement wetland management policies in line with the Ramsar convention’s paradigm on the “wise use” of wetlands.

scholarly journals Modelling the Impacts of Aquaculture in Wetland Ecosystems for Sustainable Aquaculture Management: An Integrated Ecosystem Approach

2018 ◽  
Vol 7 (4.34) ◽  
pp. 197
Author(s):  
Roseliza Mat Alipiah ◽  
Fathilah Ismail ◽  
Siti Aisyah Saat ◽  
Ahmad Puad Mat Som
Keyword(s):  
Ecosystem Services ◽  
Wetland Management ◽  
Anthropogenic Activities ◽  
Status Quo ◽  
Management Approach ◽  
Wetland Ecosystem ◽  
Management Scenarios ◽  
Wetland Ecosystems ◽  
Ordinal Ranking ◽  
Intensive Aquaculture

This research integrates information from both environmental and social sciences to inform effective management of the wetlands. A three-stage research framework was developed for modelling the drivers and pressures imposed on the wetlands and their impacts to the ecosystem and the local communities. Firstly, a Bayesian Belief Network (BBN) was used to predict the probability of anthropogenic activities affecting the delivery of different key wetland ecosystem services under different management scenarios. Secondly, Choice Experiment (CE) was used to quantify the relative preferences which key wetland stakeholder group (aquaculturists) held for delivery of different levels of these key ecosystem services. Thirdly, a Multi-Criteria Decision Analysis (MCDA) was applied to produce an ordinal ranking of the alternative management scenarios accounting for their impacts upon ecosystem service delivery as perceived through the preferences of the aquaculturists. This integrated ecosystem management approach was applied to a wetland ecosystem in Setiu, Terengganu, Malaysia which currently supports a significant level of aquaculture activities. This research has produced clear guidelines to inform policy makers considering alternative wetland management scenarios: Intensive Aquaculture, Conservation or Ecotourism, in addition to the Status Quo. The findings of this research are as follows. The BBN revealed that current aquaculture activity is likely to have significant impacts on water column nutrient enrichment, but trivial impacts on caged fish biomass, especially under the Intensive Aquaculture scenario. Secondly, the best fitting CE models identified several stakeholder sub-groups for aquaculturists, each with distinct sets of preferences for the delivery of key ecosystem services. Thirdly the MCDA identified Conservation as the most desirable scenario overall based on ordinal ranking in the eyes of most of the stakeholder sub-groups. Ecotourism and Status Quo scenarios were the next most preferred and Intensive Aquaculture was the least desirable scenario. The methodologies developed through this research provide an opportunity for improving planning and decision making processes that aim to deliver sustainable management of wetland ecosystems in Malaysia.  

On the Planning and Construction of Wetland Park

2013 ◽  
Vol 663 ◽  
pp. 185-189
Author(s):  
Wan Yi Zhang ◽  
Min He
Keyword(s):  
Economic Development ◽  
Ecosystem Services ◽  
Development Process ◽  
Living Environment ◽  
Human Society ◽  
Wetland Ecosystem ◽  
Environmental Capacity ◽  
Urban Living ◽  
Planning And Construction ◽  
Time Planning

The paper explains the formation, development process, connotation and characteristics, so as to make it clear that the Wetland Parks are important for the utilization and protection of wetland. The paper also explains in detail the principles, direction and major points of the planning and construction of Wetland Parks. Then finally the writer’s suggestions for the construction of Wetland Park are expressed, and the future of Wetland Park is predicted. More and more widespread concern and attention has been attracted to wetland for its unique and important ecological, social and economic functions. Our country is strengthening the construction of wetland nature reserves, while we actively encourage the local to construct multifunctional Wetland Parks. Wetland Park, cultivates natural assets and expands environmental capacity. It functions in wetland ecosystem services in variety aspects, while it meets the needs of economic development of human society. At the same time, planning and construction of Wetland Parks is the effective and innovative means to create a good urban living environment.

Space Making as Artistic Practice: The Relationship between Grassroots Art Organizations and the Political Economy of Urban Development

2019 ◽  
Vol 18 (4) ◽  
pp. 1142-1161 ◽  
Author(s):  
Shira Zilberstein
Keyword(s):  
Political Economy ◽  
Urban Development ◽  
Urban Space ◽  
The Political ◽  
Cultural Representations ◽  
Artistic Practice ◽  
Social And Cultural Capital ◽  
Art Organizations ◽  
Do It Yourself ◽  
The Relationship

Standard narratives on the relationship between art and urban development detail art networks as connected to sources of dominant economic, social, and cultural capital and complicit in gentrification trends. This research challenges the conventional model by investigating the relationship between grassroots art spaces, tied to marginal and local groups, and the political economy of development in the Chicago neighborhood of Pilsen. Using mixed methods, I investigate Do–It–Yourself and Latinx artists to understand the construction and goals of grassroots art organizations. Through their engagements with cultural representations, space and time, grassroots artists represent and amplify the interests of marginal actors. By allying with residents, community organizations and other art spaces, grassroots artists form a social movement to redefine the goals and usages of urban space. My findings indicate that heterogeneous art networks exist and grassroots art networks can influence urban space in opposition to top–down development.

scholarly journals Integration of Ecosystem Services in Strategic Environmental Assessment of a Peri-Urban Development Plan

2020 ◽  
Vol 13 (1) ◽  
pp. 122
Author(s):  
Teodoro Semeraro ◽  
Benedetta Radicchio ◽  
Pietro Medagli ◽  
Stefano Arzeni ◽  
Alessio Turco ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Urban Development ◽  
Environmental Assessment ◽  
Green Infrastructure ◽  
Strategic Environmental Assessment ◽  
Development Plan ◽  
Mitigation Measures ◽  
The Sustainable Development ◽  
South Italy ◽  
Urban Plan

Strategic environmental assessment (SEA) can support decision-makers in constructing more sustainable plans, programs, and policies (PPPs). To be more coherent with new frontiers of sustainable cities, PPPs need to include conservation objectives and to increase ecosystem service (ES) strategies. The ES concept is not intrinsic to the SEA process; therefore, it is necessary to develop an approach and methodology to include it. In this paper, we propose a methodology to integrate the concept of ecosystem services in all phases of the SEA process for a sub-urban plan, including the design of mitigation measures. The case study is represented by a peri-urban development plan in the municipality of Gallipoli in South Italy, characterized by a strong tourism economy and valuable agro-ecosystems. The analysis shows the priority ecosystem services that are selected considering the sustainable development and environmental goals, the context of referment, and the aims of the peri-urban plan. After, we highlight the potential ecosystem services developed considering the design of mitigation actions like green infrastructure, which could be implemented in the peri-urban plan. The capacity to develop green infrastructure in SEA processes can configure the SEA as a tool for ecological urban design that is integrated with urban planning. This requires the ability to transfer ecological and planning theories into practical actions and the capacity of different disciplines to work in a transdisciplinary approach.

scholarly journals Comparing Wetland Ecosystems Service Provision under Different Management Approaches: Two Cases Study of Tianfu Wetland and Nansha Wetland in China

2021 ◽  
Vol 13 (16) ◽  
pp. 8710
Author(s):  
Yuchao Zhang ◽  
Steven Loiselle ◽  
Yimo Zhang ◽  
Qian Wang ◽  
Xia Sun ◽  
...  
Keyword(s):  
Water Quality ◽  
Ecosystem Services ◽  
Wetland Management ◽  
Nutrient Retention ◽  
Limited Information ◽  
Urban Centers ◽  
Wetland Ecosystems ◽  
Fundamental Information ◽  
Management Approaches ◽  
Study Sites

The largest blue-green infrastructures in industrialized, urbanized and developed regions in China are often multiuse wetlands, located just outside growing urban centers. These areas have multiple development pressures while providing environmental, economic, and social benefits to the local and regional populations. Given the limited information available about the tradeoffs in ecosystem services with respect to competing wetland uses, wetland managers and provincial decision makers face challenges in regulating the use of these important landscapes. In the present study, measurements made by citizen scientists were used to support a comparative study of water quality and wetland functions in two large multiuse wetlands, comparing areas of natural wetland vegetation, tourism-based wetland management and wetland agriculture. The study sites, the Nansha and Tianfu wetlands, are located in two of the most urbanized areas of China: the lower Yangtze River and Pearl River catchments, respectively. Our results indicated that the capacity of wetlands to mitigate water quality is closely related to the quality of the surrounding waters and hydrological conditions. Agricultural areas in both wetlands provided the lowest sediment and nutrient retention. The results show that the delivery of supporting ecosystem services is strongly influenced by the location and use of the wetland. Furthermore, we show that citizen scientist-acquired data can provide fundamental information on quantifying these ecosystem services, providing needed information to wetland park managers and provincial wetland administrators.

scholarly journals Lake and wetland ecosystem services measuring water storage and local climate regulation

2017 ◽  
Vol 53 (4) ◽  
pp. 3197-3223 ◽  
Author(s):  
Christina P. Wong ◽  
Bo Jiang ◽  
Theodore J. Bohn ◽  
Kai N. Lee ◽  
Dennis P. Lettenmaier ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Water Storage ◽  
Wetland Ecosystem ◽  
Local Climate ◽  
Climate Regulation

scholarly journals MONITORING CHANGES OF ECOSYSTEM SERVICES SUPPLY AND DEMAND PATTERN IN CENTRAL AND SOUTHERN LIAONING URBAN AGGLOMERATIONS, CHINA USING LANDSAT IMAGES

2018 ◽  
Vol XLII-3 ◽  
pp. 765-770
Author(s):  
B. Li ◽  
F. Huang ◽  
S. Chang ◽  
H. Qi ◽  
H. Zhai
Keyword(s):  
Ecosystem Services ◽  
Population Density ◽  
Foreign Investment ◽  
Driving Forces ◽  
Supply And Demand ◽  
Reference Value ◽  
Landsat Images ◽  
Urban Agglomerations ◽  
Spatio Temporal

Indentifying the spatio-temporal patterns of ecosystem services supply and demand and the driving forces is of great significance to the regional ecological security and sustainable socio-economic development. Due to long term and high-intensity development, the ecological environment in central and southern Liaoning urban agglomerations has been greatly destroyed thereafter has restricted sustainable development in this region. Based on Landsat ETM and OLI images, land use of this urban agglomeration in 2005, 2010 and 2015 was extracted. The integrative index of multiple-ecosystem services (IMES) was used to quantify the supply (IMESs), demand (IMESd) and balance (IMESb) of multiple-ecosystem services, The spatial patterns of ecosystem services and its dynamics for the period of 2005–2015 were revealed. The multiple regression and stepwise regression analysis were used to explore relationships between ecosystem services and socioeconomic factors. The results showed that the IMESs of the region increased by 2.93 %, whereas IMESd dropped 38 %. The undersupplied area was reduced to 2. The IMESs and IMESb were mainly negatively correlated with gross domestic product (GDP), population density, foreign investment and industrial output, while GDP per capita and the number of teachers had significant positive impacts on ecosystem services supply. The positive correlation between IMESd and GDP, population density and foreign investment were found. The ecosystem services models were established. Supply and balance of multiple-ecosystem services were positively correlated with population density, but the demand was the opposite. The results can provide some reference value for the coordinately economic and ecological development in the study area.

scholarly journals Nexus between Indigenous Ecological Knowledge and Ecosystem Services: A Socio-Ecological Analysis for Sustainable Ecosystem Management

2021 ◽  
Author(s):  
Manob Das ◽  
Arijit Das ◽  
Selim Seikh ◽  
Rajiv Pandey
Keyword(s):  
Environmental Management ◽  
Ecosystem Services ◽  
Statistical Tests ◽  
Belief Systems ◽  
Well Being ◽  
Ecological Knowledge ◽  
Human Society ◽  
Indigenous Ecological Knowledge ◽  
Demographic Attributes ◽  
The Impact

Abstract The well-being of the human society cannot be ensured and sustainable unless the flow of Ecosystem Services (ESs) would be matching with their consistent demand. The consistent flow of ESs required sustainable management of ecological resources of the ecosystem. The management of ecosystem can be ensured with variety of approaches. Integration of indigenous ecological knowledge (IEK) in management prescription with the view that IEK based extraction of ESs ensures removal of resources from the ecosystem within the limit thereby ensuring the sustainability of ecosystem. Present study is an evaluation to understand the nexus between ESs and IEK for sustainable environmental management. The focus of the study was a tribal dominated socio-ecological patch of Barind Region of Malda district, Eastern India. The assessment of ESs and IEK was based on the data collected from the randomly selected tribal households following the pre-tested questionnaire containing questions on ESs as per millennium ecosystem assessment. The data were analyzed following social preference approach, and statistical tests (Krushkal-Wallis and Mann-Whitney). General linear model (GLM) has also been used to examine the impact of socio-demographic attributes on the perceived valuation of ESs. The results revealed that the provisioning ESs (such as water, fuel wood, medical plants) was most preferred followed by cultural and regulating ESs by tribal. Differential importance of ESs was observed among tribal and accounted by gender, education as well as age of the tribe. A gap between the actual accessibility and evaluation of ESs by the tribal communities was also apparent. The socio-demographic attributes have an immense impact on the valuation of ecosystem services and also governed based on the IEK. Various types of indigenous ecological belief systems were closely linked with conservation of ecosystem and sustainable supply of ESs. Present study can contribute to understand socio-ecological nexus with the lens of IEK in tribal dominated ecological landscapes for improved ecosystem and environmental management besides ensuring sustainability of flow of ecosystem services.

scholarly journals Distribution of birds in Colombia

2021 ◽  
Vol 9 ◽  
Author(s):  
Danny Vélez ◽  
Edwin Tamayo ◽  
Fernando Ayerbe-Quiñones ◽  
Julián Torres ◽  
Juan Rey ◽  
...  
Keyword(s):  
Decision Making ◽  
Species Richness ◽  
Land Use Planning ◽  
Scientific Information ◽  
Sustainable Use ◽  
Bird Species ◽  
Geographic Information ◽  
Huge Number ◽  
Bird Species Richness ◽  
Taxonomic Groups

1. Colombia with 1941 known recorded bird species is one of the most species rich countries in the world. Efforts are necessary to conserve, study and promote sustainable use of this important taxonomic group throughout Colombia’s vast territory. 2. In an ideal world, informed decisions that are based on sound scientific information should be likelier to have successful outcomes. Nevertheless, there are barriers that make it difficult to access and use information in a timely fashion. Those same barriers impede the study, conservation and sustainable use of bird species in Colombia. On the other hand, given that there is good documentation about the ecology of a large number of species, information about the distribution of birds can be easily incorporated into decision-making processes, once this information becomes readily available in a consumable format using Geographic Information Sciences tools. 3. In this context, the main objective of this paper is to present the first compilation of the current distribution of 1889 (97%) species of birds in Colombia, using expert criteria. The shapefiles were used to show the distribution and diversity of bird species in Colombia under both geopolitical and conservation geographic units. 4. The information provided in this paper can be used as a baseline for a huge number of initiatives that aim to strengthen conservation efforts and improve knowledge about one the most unique taxonomic groups in the country. These range from land use planning strategies at the municipal or department scale to sustainable use of bird species - such as those initiatives related to bird watching - in Colombia. This study has considered three key aspects: 1) the importance of birds for Colombia’s ecosystems, 2) the privileged place of Colombia in bird species richness and 3) the importance of data mobilisation in formats easily consumable by Geographic Information Systems (GIS) to facilitate the processes of informed decision-making. We present the first compilation - in shapefile format - for 1889 of the 1941 bird species recorded from Colombia. Using this novel collection, we showed the species richness of birds in Colombia’s 33 Departments plus its Captial District (DPs), 1122 Municipalities (MNs), 58 protected areas (PAs), 39 Regional Autonomous Corporations (the authorities responsible within their respective jurisdictions for regulating the environment and renewable natural resources in Colombia; CARs) and 916 Collectively Titled Territories (including both indigenous reservations and afro-descendant communities; CTTs). In addition, we provide a list of known bird species richness for the above geographic units found in the available literature. The information provided here can be used as a baseline for a huge number of initiatives concerning the study, conservation and sustainable use of bird species present in Colombia, providing access to key features of bird distribution that should facilitate decision-making.

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