scholarly journals Rainwater Harvesting to Increase Freshwater Carrying Capacity on Small Islands (A Case Study of Pramuka Island)

2021 ◽  
Vol 921 (1) ◽  
pp. 012058
Author(s):  
P Girdayanto ◽  
P Davey ◽  
A Munir
Keyword(s):  
Carrying Capacity ◽  
Catchment Area ◽  
Large Scale ◽  
Rainwater Harvesting ◽  
Small Island ◽  
Small Islands ◽  
Rapid Population Growth ◽  
High Demand ◽  
Minimum Standards

Abstract Pramuka Island is a small island that is covered with dense settlements, inhabited by 1,715 people, and experiencing rapid population growth with increasing visits by tourists every year ]. As a result, there is a high demand for freshwater, leading to a large-scale exploitation of groundwater on the island. Yet, a research conducted by [1] had indicated that groundwater on Pramuka Island is below the minimum standards for drinking water. This report discusses the effectivity of a rainwater harvesting system as a solution to the freshwater carrying capacity of Pramuka Island. The discussion involves analysis of freshwater carrying capacity based on water balance calculations between freshwater supply with rainwater harvesting and potential freshwater demands for domestic usage, tourism, and other activities. The results revealed that the scenario of the whole island as a rainwater catchment area is enough to supply local freshwater demand for approximately 27 years.

scholarly journals DYNAMIC STATE OF ECOSYSTEM CARRYING CAPACITY UNDER ISLAND URBANIZATION: A CASE STUDY OF PINGTAN ISLAND IN THE SOUTHEASTERN COAST OF CHINA

2020 ◽  
Vol 28 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Sheng Gao ◽  
Huihui Sun ◽  
Guangxi Cao ◽  
Lin Zhao ◽  
Runjie Wang ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Carrying Capacity ◽  
Large Scale ◽  
Assessment Method ◽  
Dynamic State ◽  
Ecological Environment ◽  
The Sustainable Development ◽  
Rational Development ◽  
Pingtan Island

The assessment of ecological environment during the large-scale development of islands is a major topic in the study of current coastal islands. Choosing the appropriate assessment method to evaluate the suitability of carrying capacity of islands and making relevant suggestions are significant to the sustainable development of islands. Ecological footprint method is used to analyze the ecological carrying capacity of Pingtan Island (PI) from 2005 to 2016 for promoting the coordinated rational development and construction and ecological environment of the island. Although PI is in rapid urban development and construction, the island maintains secure and stable ecological conditions. PI is used as a research case to analyze the sustainable development of the ecological environment through the carrying capacity of the island ecosystem.

scholarly journals Rainwater harvesting for restoring degraded dry agro-pastoral ecosystems: a conceptual review of opportunities and constraints in a changing climate

2017 ◽  
Vol 25 (2) ◽  
pp. 135-149 ◽  
Author(s):  
Theib Y. Oweis
Keyword(s):  
Large Scale ◽  
Rainwater Harvesting ◽  
Vegetation Growth ◽  
Changing Climate ◽  
System Equilibrium ◽  
The Future ◽  
System Restoration ◽  
Water Scarce ◽  
Pastoral Ecosystems

Water resources in dry environments are becoming scarcer, especially under the changing climate. In response, rainwater harvesting (RWH) is being reemphasized with calls to revive the practice. Ancient knowledge on RWH — mainly the collection through runoff, storage, and use of rainwater for various purposes — is still relevant, especially for dry environments. However, many old practices and technologies may not be suitable or feasible for the present and future. Little has been done to modernize and (or) develop new practices and technologies based on ancient indigenous knowledge. Modernizing old practices or developing new ones and using them in integrated rangelands restoration packages with enabling policy environment can unlock their potential in many water-scarce regions of the world. This paper reviews the state-of-the-art of micro-catchment rainwater harvesting (MIRWH) in dry environments and discusses the opportunities available and the major obstacles faced in using it to restore degraded agro-pastoral ecosystems and support their sustainability. The review highlights the knowledge behind it, the practices developed over the years, and their relevance to today and the future. The paper indicates areas of modernization that can make it more feasible for the future of the dry environments, especially their role in mitigating and adapting to climate change. Conventional and passive approaches to restoring/rehabilitating degraded dry agro-pastoral ecosystems are either too slow to show an obvious impact or not progressing satisfactorily. One main reason is that, because of land degradation, the majority of rain falling on such ecosystems and needed for revegetation is lost with little benefit being gained. Adopting a more progressive intervention to alter the processes of degradation and move towards new system equilibrium is required. MIRWH can enable a large portion of this otherwise lost rainwater to be stored in the soil, and, if used in an integrated packages including suitable plant species and sound grazing management, it may support meaningful vegetation growth and help system restoration. The Badia Benchmark project, implemented by ICARDA in Jordan and Syria, has demonstrated the potential for adoption at large scale in similar environments. This case study illustrates the potential and the constraints of this practice.

scholarly journals The Impact of Sea-Level Rise on Tourism Small Islands a Case Study of Wenzhou Island during the Pre-COVID-19 Pandemic Period

CONVERTER ◽  
2021 ◽  
pp. 236-241
Author(s):  
Yichia Lin, Wenlung Chang, Wongchai Anupong
Keyword(s):  
Climate Change ◽  
Sea Level Rise ◽  
Sea Level ◽  
Resource Planning ◽  
Small Island ◽  
Small Islands ◽  
Daily Lives ◽  
Tourist Attractions ◽  
The Impact

During the COVID-19 pandemic period, island tourism experienced a severe impact. Island tourism is a thriving tourism model, but it is greatly affected by the SLR (sea level rise) due to climate change. Small island tourism must to face flooding problems that cause sea-level rise. GIS can be used to plan and monitor land use. This case study uses GIS (Geography information system) pre-COVID-19 pandemic period to predict flooding at different scales. After three different scales of digitization processing, it is found that: Overall, the flood area is located in the northern part of the island. The relationship is consistent, that is, the flood season is directly proportional to the peak tourist season. Sea level rise will cause changes in tourist attractions on the island; residents' daily lives will face major changes. This study provides a small amount of inundation scale predictions at different scales; hopes to be helpful for the island’s tourism resource planning and residents’ adaptation. To avoid add climate change refugees and rational use of tourism resources on lack nature resource small islands.

scholarly journals Potential of rainwater harvesting (RWH) to overcome the problem of water scarcity at the airports: a case study in I Gusti Ngurah Rai Airport, Bali

2021 ◽  
Vol 893 (1) ◽  
pp. 012079
Author(s):  
K Sumaja ◽  
I K M Satriyabawa ◽  
T P P Dewi ◽  
A Fadianika
Keyword(s):  
Surface Water ◽  
Catchment Area ◽  
Rainwater Harvesting ◽  
Simulation Analysis ◽  
Regional Scale ◽  
Underground Water ◽  
Sufficient Information ◽  
Groundwater Systems ◽  
Water Catchment

Abstract Indonesian airport in general relies dominantly on the surface and underground water to fulfil its water demand. Although groundwater systems are generally more resilient to climate change than surface water sources, their overuse might damage those water systems. One alternative to overcome this problem is rainwater harvesting (RWH) which could be implemented to increase the availability of raw water supply. However, in Indonesia, the study of the potential of RWH at a regional scale is still limited, so it does not provide sufficient information for practical application. Therefore, as the objective, this research will utilize a simulation analysis method to calculate the volume of rainfall storage, water requirements and reliability levels at I Gusti Ngurah Rai Airport regarding variations of the catchment area. This scheme would be applied not only during the dry and rainy seasons but also during the El Nino event. Moreover, the rainfall return periods would be determined to define the potential size of a rainwater harvesting system yearly. As a result, RWH at I Gusti Ngurah Rai Airport has the potential to substitute the surface water (PDAM) and groundwater usage either fully or partially depends on the season and water catchment area.

scholarly journals Estimasi Daya Dukung Sumber Daya Air di Pulau Kecil (Studi Kasus Pulau Pari)

2018 ◽  
Vol 6 (3) ◽  
pp. 164 ◽  
Author(s):  
Dyah Marganingrum ◽  
Yayat Sudrajat
Keyword(s):  
Water Resources ◽  
Fresh Water ◽  
Carrying Capacity ◽  
Rainwater Harvesting ◽  
Estimation Method ◽  
Annual Rainfall ◽  
Small Island ◽  
Tourism Destination ◽  
Safe Level ◽  
Technological Intervention

Small islands are often promoted as a tourism destination in spite of the limited fresh water resources availability that they could retain for daily needs. In this context, efforts to provide fresh water resources sustainable in the small island are necessary to support the tourism destination purpose. This study aims to estimate the carrying capacity of the fresh water resources in Pari Island. The estimation method is the ratio between the fresh water availability and its demand by calculating the island size, aquifer thickness, annual rainfall, hydraulic conductivity or soil permeability, and the application of rainwater harvesting technology (RHT). The result shows that the carrying capacity of the fresh water resources without technological intervention in Pari Island is 2.05. Even though this score indicates the safe level, the measure has not taken the water quality into consideration yet. Expectedly, it could be improved by applying the RHT technology but it results in the carrying capacity score of 1.37 and 1.47 (conditionally safe) for the current state and 25-year future prediction respectively. This study recommends the improvements in tourism management by limiting the visitor number in order to support their sustainability for the local livelihood and Pari Island’s ecosystem conservation.

scholarly journals Small island settlement planning in Panggang island, DKI Jakarta

2021 ◽  
Vol 916 (1) ◽  
pp. 012019
Author(s):  
R Suryadjaja ◽  
W K Astuti
Keyword(s):  
Large Scale ◽  
Local Communities ◽  
Small Island ◽  
Small Islands ◽  
Participatory Workshop ◽  
Infrastructure Provision ◽  
New Frontier ◽  
Engagement Process ◽  
Structure Improvement ◽  
Settlement Planning

Abstract Despite the fact that North Jakarta has been prompted as the new frontier of development with megaprojects, artificial islands, and large-scale infrastructures, little attention is paid to the development of small islands in Kepulauan Seribu, north of Jakarta, focused on Panggang island, one of the inhabited islands in Kepulauan Seribu, among Indonesia’s densest islands. There were the three challenges to the urbanization of small islands in the Jakarta megaregion, including: population growth, land availability and reclamation, and essential infrastructure provision. Through a participatory workshop with local authorities and communities, this paper proposed a model of sustainable settlement planning in Panggang Island, based on housing need assessment and spatial structure improvement to ensure the future settlement sustainability in Panggang island. To conclude, this paper critically reflects on the engagement process with local communities and the challenges in actualizing the settlement planning proposal in Pulau Pangang.

scholarly journals The Carrying Capacity of Infrastructure and Spatial Planning to the Recovery of Pandan Beach Natural Tourism Due to the Covid-19 Pandemic in North Sumatra (Central Tapanuli Regency Case Study)

2021 ◽  
Vol 8 (4) ◽  
pp. 321-329
Author(s):  
Fernando Raja Partogi Sibagariang ◽  
Agus Purwoko
Keyword(s):  
Data Collection ◽  
Qualitative Methods ◽  
Carrying Capacity ◽  
Spatial Planning ◽  
Research Method ◽  
Large Scale ◽  
Spatial Arrangement ◽  
Tourism Attractions ◽  
North Sumatra

The purpose of this research is: (1) know the carrying capacity of infrastructure for the recovery and development of natural attractions on the pandan beach of Central Tapanuli Regency, (2) analyze the suitability of spatial arrangements in the Regency towards the recovery and development of natural attractions on pandan beaches of Central Tapanuli Regency, (3) analyze the priority of handling infrastructure and spatial arrangement policies for the acceleration of recovery and development of natural attractions on pandan beaches.  Central Tapanuli. The research method used is to use descriptive qualitative methods with case study models. Data collection techniques with interviews and documentation. The results of this study, that is (1) The carrying capacity of central Tapanuli Regency infrastructure to the recovery and development of natural attractions on pandan beach, already has infrastructure such as transportation, economy, health and social. (2) The suitability of spatial arrangements in the Regency to the recovery and development of natural attractions on pandan beach, namely when viewed from the distribution of facilities and infrastructure and the distribution of tourism attractions the most influential space functions due to the covid-19 pandemic are restaurants or restaurants and lodgings or hotels. (3) Priority of handling infrastructure and spatial arrangement policy for the acceleration of recovery and development of natural attractions on pandan beaches of Central Tapanuli Regency, namely the economy. Whether it's a small or medium-sized business or a large scale.

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