scholarly journals Anthropization and Growth of the Electricity Grid as Variables for the Analysis of Urban Infrastructure

2020 ◽  
Vol 12 (4) ◽  
pp. 1486
Author(s):  
Manuel Ayala ◽  
Diego Huaraca ◽  
José Varela-Aldás ◽  
Andrea Ordóñez ◽  
Genís Riba
Keyword(s):  
Agricultural Land ◽  
Growth Dynamics ◽  
Urban Infrastructure ◽  
Power Network ◽  
Network Growth ◽  
Sustainable Infrastructure ◽  
City Growth ◽  
Electricity Grid ◽  
Linear Least Squares Problem

City growth goes together with the development of infrastructure, and the power network is one of the most relevant towards economic development. The study of urban infrastructure through the analysis of anthropization coupled with power network growth can produce a tool that supports sustainable infrastructure planning, both economic and environmental. The case study focuses on Ambato, Ecuador, in the period from 1950 to 2019, and assesses quantitatively the changes in the city layout and the evolution of its power network. The data are adjusted to a sigmoid-type objective function through a non-linear least squares problem, that is solved using the Broyden–Fletcher–Goldfarb–Shanno (BFGS) method. Anthropization data show how the urban area grew during the study period: 37% (1950–1960), 53% (1960–1970), 80% (1970–1980), 35% (1980–1990), 39% (1990–2000), 38% (2000–2010), and 11% (2010–2019), mostly at the expense of agricultural land. The forecast for new power network users by 2050 yields a result of 203,630 total users with a population density of 4850 people/km2. The conclusion is that this type of analysis can help city planners and decision makers further understand city and infrastructure growth dynamics and produce policies that bolster sustainable city growth.

scholarly journals Equitable Allocation of Blue and Green Water Footprints Based on Land-Use Types: A Case Study of the Yangtze River Economic Belt

2018 ◽  
Vol 10 (10) ◽  
pp. 3556 ◽  
Author(s):  
Gang Liu ◽  
Lu Shi ◽  
Kevin Li
Keyword(s):  
Land Use ◽  
Water Resources ◽  
Agricultural Land ◽  
Optimal Allocation ◽  
Water Footprint ◽  
Agricultural Water ◽  
Land Area ◽  
Lexicographic Optimization ◽  
The Impact

This paper develops a lexicographic optimization model to allocate agricultural and non-agricultural water footprints by using the land area as the influencing factor. An index known as the water-footprint-land density (WFLD) index is then put forward to assess the impact and equity of the resulting allocation scheme. Subsequently, the proposed model is applied to a case study allocating water resources for the 11 provinces and municipalities in the Yangtze River Economic Belt (YREB). The objective is to achieve equitable spatial allocation of water resources from a water footprint perspective. Based on the statistical data in 2013, this approach starts with a proper accounting for water footprints in the 11 YREB provinces. We then determined an optimal allocation of water footprints by using the proposed lexicographic optimization approach from a land area angle. Lastly, we analyzed how different types of land uses contribute to allocation equity and we discuss policy changes to implement the optimal allocation schemes in the YREB. Analytical results show that: (1) the optimized agricultural and non-agricultural water footprints decrease from the current levels for each province across the YREB, but this decrease shows a heterogeneous pattern; (2) the WFLD of 11 YREB provinces all decline after optimization with the largest decline in Shanghai and the smallest decline in Sichuan; and (3) the impact of agricultural land on the allocation of agricultural water footprints is mainly reflected in the land use structure of three land types including arable land, forest land, and grassland. The different land use structures in the upstream, midstream, and downstream regions lead to the spatial heterogeneity of the optimized agricultural water footprints in the three YREB segments; (4) In addition to the non-agricultural land area, different regional industrial structures are the main reason for the spatial heterogeneity of the optimized non-agricultural water footprints. Our water-footprint-based optimal water resources allocation scheme helps alleviate the water resources shortage pressure and achieve coordinated and balanced development in the YREB.

scholarly journals A RECONNAISSANCE-SCALE GIS-BASED MULTICRITERIA DECISION ANALYSIS TO SUPPORT SUSTAINABLE BIOCHAR USE: POLAND AS A CASE STUDY

2017 ◽  
Vol 25 (2) ◽  
pp. 208-222 ◽  
Author(s):  
Agnieszka E LATAWIEC ◽  
Lewis PEAKE ◽  
Helen BAXTER ◽  
Gerard CORNELISSEN ◽  
Katarzyna GROTKIEWICZ ◽  
...  
Keyword(s):  
Agricultural Land ◽  
Multicriteria Analysis ◽  
Cost Effective ◽  
Lessons Learned ◽  
Research Papers ◽  
Potential Barriers ◽  
Indirect Land Use Change ◽  
Biomass Availability ◽  
Change Mitigation

Although increasing numbers of research papers regarding biochar are being published worldwide, in some countries growing interest in biochar has only recently been observed; this is true of Poland. We analysed information on biochar research in Poland alongside lessons learned elsewhere in order to identify the significant opportunities and risks associated with biochar use. This data fed into a GIS-based multicriteria analysis to identify areas where biochar application could deliver greatest benefit. We found that 21.8% of agricultural land in Poland has at least moderate indication for biochar use (soil organic matter below 2% and ph below 5.5), while 1.5% was categorized as a priority as it also exhibited contamination. Potential barriers identified included biomass availability and associated risks of indirect land-use change due to possible national and transnational biomass production displacement. Biochar use could have positive global consequences as a climate change mitigation strategy, particularly relevant in a country with limited alternatives. Scaling up a mitigation technology that is viable on account of its co-benefits might be cost-effective, which could, in turn, adjust national perspectives and stronger involvement in developing mitigation policies at the regional level. Biochar has much promise in temperate conditions and further research should therefore be assigned to explore biochar’s environmental and socio-economic impacts.

scholarly journals EIA in developing countries: How does environmental impact assessment (EIA)/(AMDAL) support neoliberal mining? (a case study in Indonesia)

2021 ◽  
Vol 905 (1) ◽  
pp. 012043
Author(s):  
T Kumayza
Keyword(s):  
Developing Countries ◽  
Economic Development ◽  
Agricultural Land ◽  
Legal Protection ◽  
East Kalimantan ◽  
Land Owners ◽  
Development Tool ◽  
Government Supervision ◽  
Micro Level

Abstract Amdal regulation on mining exploitation according to Law No. 32 of 2009 aims to protect and manage the environment properly. This research reveals the paradox of EIA at the micro level (a case study) supporting the neoliberal agenda and facilitating economic development. This study aimed to explore how the practice of compensation for agricultural land at the scoping stage in the preparation of mining Amdal documents. The research was conducted in Mulawarman village, Kutai Kartanagara district, East Kalimantan province in the period 2004-2013. Historically, in the 2004-2013 period, Kutai Kartanegara Regency was the most massive in issuing mining business permits in Indonesia. The results of the study indicate that there was weak legal protection for agricultural land owners and unequal negotiation practices between companies and land owners without government supervision. The practice of compensation is a development tool rather than an environmental protection tool..

scholarly journals Urban Sprawl and its Effects on Environment and Farmland a Timisoara Case Study

2014 ◽  
Vol 71 (1) ◽  
pp. 18-25
Author(s):  
Smaranda BICA ◽  
Diana BELCI
Keyword(s):  
Urban Sprawl ◽  
Agricultural Land ◽  
Growth Management ◽  
Developed Countries ◽  
East European ◽  
Development Policies ◽  
The Developed Countries ◽  
American Cities

Urban sprawl has been plaguing Western European and American cities for the last 70 years. One has fought against this phenomenon all over the world with a combination of strategic planning and urban regulations, focusing on growth management, sustainable development and preservation of farmland. East European cities, Romanian cities included, have been rapaciously consuming the free natural and agricultural land around them, without long-term development policies. The aim of this paper is analyzing urban sprawl around Timișoara and finding efficient ways of economizing urban and rural land. The article is based on several urban studies, statistical and traffic data showing the magnitude of the phenomenon and its dramatic effects on the environment.The European Union required to recent members to follow the path set by the developed countries, even if their economies have a system more or less centralized inherited from communism. It is still unclear who should be responsible for urban planning; the rules and regulations are made along the way, while the investors’ pressure is huge. Meanwhile extended rural and agricultural land might be destroyed. Most politicians do not acknowledge this problem as they approve further expansion into farmland without any previous planning. This paper might be just tackling this subject, but its target should be making urban sprawl more visible, understanding its dimension and dramatic effects around Romanian cities.

scholarly journals Strategi Pengembangan Lada (Studi Kasus Kelompok Tani Indatu di Desa Blang Panyang Kecamatan Muara Satu Kota Lhokseumawe)

2017 ◽  
Vol 2 (3) ◽  
pp. 142-155
Author(s):  
Auzan Syahmi ◽  
Irwan Irwan ◽  
Romano Romano
Keyword(s):  
Development Strategy ◽  
Swot Analysis ◽  
Agricultural Land ◽  
Raw Materials ◽  
Factors Affecting ◽  
Pests And Diseases ◽  
Factors Analysis ◽  
Strategic Factors ◽  
Rot Disease

Abstrak . Lada merupakan salah satu  tanaman rempah-rempah yang berasal dari tanaman perkebunan yang sangat terkenal dahulu di Aceh. Khususnya Petani lada di Aceh saat ini sudah mulai memperhatikan lada untuk dikembangkan dengan tujuan meningkatkan pendapatan dan kesejahteraan. Dengan kata lain, Lada menjadi komoditi primadona yang banyak diminati di perdagangan dunia. Karena berbagai negara menggunakan lada ini sebagai bumbu dapur masakan. Disisi lain disebabkan berkembangnya usaha makanan, berkembangnya industri farmasi, kosmetika yang menggunakan lada sebagai salah satu bahan baku, meningkatnya konsumsi dunia, konsumsi dalam negeri semakin meningkat dengan bertambahnya produk-produk industri makanan berbasis lada. Akibat permintaan lada yang tinggi menyebabkan terjadinya masalah bagi petani Aceh dalam keterbatasan produksi lada. Salah satunya lahan pertanian dikonversikan menjadi non pertanian seperti perumahan, gedung dan pertokoan. Sehingga lahan pertanian menjadi berkurang dan menjadi masalah bagi petani lada sendiri dalam mengembangkan lada. Penyebab masalah lain juga yang akibat hama dan penyakit terutama penyakit layu, penyakit keriting daun serta penyakit busuk pangkal batang. Tujuan Penelitian untuk mengetahui faktor-faktor yang diperhatikan pada pengembangan lada, serta mengetahui strategi pengembangan lada yang tepat. Metode Penelitian yang digunakan adalah metode studi kasus. Teknik Pengumpulan data digunakan dengan pendekatan wawancara. Hasil analisis  menunjukkan faktor internal yang  mempengaruhi usaha pengembangan lada adalah bibit, pestisida, sumber daya alam, pupuk, dan sumber daya manusia. Sedangkan faktor eksternal yang mempengaruhinya adalah pemerintah, pasar, harga, pesaing, hama dan penyakit. Berdasarkan hasil analisis SWOT didapatkan nilai IFAS (Internal Strategic Factors Analysis Summary)  sebesar 1,756 dan EFAS (Eksternal Strategic Factors Analysis Summary)  sebesar 2,773 berada pada kuadran I , maka  strategi pengembangan yang cocok untuk strategi pengembangan lada adalah  strategi agresif  yang artinya usaha tersebut sangat dimungkinkan untuk terus berkembang, meningkatkan pertumbuhan dan meraih kemajuan secara maksimal, dimana strategi agresif ini merupakan kondisi yang sangat menguntungkan, peluang dan kekuatan begitu besar sehingga pelaku usaha bisa memanfaatkan peluang dan kekuatan yang ada secara maksimal.Strategy of pepper development (case study of indatu farmer group in blang panyang village sub-district estuary one, Lhokseumawe City) Abstract. Pepper is one of the most popular herbs from Aceh plantations. Especially pepper farmers in Aceh are now starting to pay attention to pepper to be developed with the aim of increasing income and welfare. In other words, Pepper became the most popular commodity in the world trade. Because various countries use this pepper as a spice cooking kitchen. On the other hand, due to the development of food business, the development of pharmaceutical industry, cosmetics using pepper as one of the raw materials, the increasing of world consumption, domestic consumption is increasing with the increase of pepper based food industry products. As a result of high pepper demand causes problems for Acehnese farmers in the limitations of pepper production. One of them agricultural land converted into non-agricultural such as housing, buildings and shops. So that agricultural land becomes reduced and become a problem for pepper farmers themselves in developing pepper. Other causes of problems are also caused by pests and diseases, especially wilt disease, leaf curling disease and stem rot disease. Research Objectives to determine the factors that are considered in the development of pepper, as well as to know the appropriate pepper development strategy. The research method used is case study method. Technique Data collection is used with interview approach. The results of the analysis show that the internal factors affecting pepper development are seeds, pesticide, natural resources, fertilizer and human resources. While on external factors that include government, markets,prices, competitors,pest and diseases. Based on the result of SWOT analysis, the value of IFAS (Internal Strategic Factors Analysis Summary) of 1.756 and EFAS (External Strategic Factors Analysis Summary) of 2.773 are in quadrant I, then a suitable development strategy for pepper development strategy is aggressive strategy which means the business is very possible To continue to grow, to increase growth and to achieve maximum progress, where aggressive strategy is a very favorable condition, opportunities and strength so large that business actors can take advantage of opportunities and strengths that exist maximally.

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