scholarly journals Impact of land use on coastline change of island cities: A case of Zhoushan Island, China

2020 ◽  
Vol 15 (2) ◽  
pp. 335-352
Author(s):  
Yizhou Wu ◽  
Shuwai Wang ◽  
Jiacheng Wang ◽  
Siqin Wu ◽  
Heyuan You ◽  
...  
Keyword(s):  
Land Use ◽  
Agricultural Land ◽  
Land Reclamation ◽  
Positive Impact ◽  
Anthropogenic Activities ◽  
Gis Technology ◽  
Logistics Industry ◽  
Industrial Land ◽  
Coastline Change ◽  
Sensing Technology

Anthropogenic activities have an important effect on the natural coastlines of island cities as a result of urbanization and population agglomeration in developing countries. In order to identify the relationships between land use and coastline changes in the typical island city, this study used land use data, remote sensing technology, and geographic information system (GIS) technology to analyze the land use situation and coastline changes in the coastal zone of Zhoushan Island in China. The results show that, from 2012 to 2017, the coastal land area of Zhoushan Island increased from 121.54 km2 to 126.00 km2. New agricultural land accounted for the highest proportion of total land use growth (46.86%), followed by residential land, land for street, and transportation and industrial land. The length of the coastline increased from 137.98 km to 142.7 km. The indicators of agricultural land, industrial land, land price, and production coastline had a significant positive impact on the rate of coastline changes. Moreover, the coastline was more than just a natural coastline but also had 336 multiple functions in terms of production, daily living, leisure, and transportation. The study found that the rapid growth of tideland reclamation-based, land reclamation-based aquaculture, and the harbour/port construction-based logistics industry are the main reasons for the continuous changes in coastlines.

scholarly journals Evaluation of the efficiency of using agricultural land in agricultural production

2021 ◽  
pp. 135-139
Author(s):  
L. V. Kireicheva ◽  
V. A. Shevchenko ◽  
I. F. Yurchenko
Keyword(s):  
Land Use ◽  
Agricultural Production ◽  
Quantitative Methods ◽  
Agricultural Land ◽  
Land Reclamation ◽  
Theory And Practice ◽  
Successful Implementation ◽  
Industrial Complex ◽  
Land Resources ◽  
Integral Assessment

Relevance. The effective use of agricultural land is a fundamental prerequisite for the successful implementation in the agro-industrial complex of the task of providing the population with food, and production with raw materials. At the same time, the issues of methodological support of the procedures for determining the integral indicator for assessing the use of agricultural land, established on the basis of a theoretically grounded unified approach based on quantitative methods, have been developed with insufficient completeness. Actualization of the issues of improving the theory and practice of assessing the effectiveness of the use of agricultural land in agricultural production is becoming one of the priority tasks of land reclamation science. The purpose of this work is to create a methodological basis for the process of assessing the use of agricultural land, which guarantees the comparability of the considered options for agroproduction in different natural and economic conditions.Methods. The research is based on the method of point assessments for indicators of agricultural land exploitation and the formation on their basis an integral criterion of land use efficiency. The proposed procedure includes: analysis of statistical data characterizing the dynamics of the values of indicators of used land resources, calculation of local assessments of the feasibility of their exploitation and assessment of the efficiency of land use according to a generalizing criterion represented by the sum of these local assessments.Results. A methodology has been developed and a method has been created for determining the efficiency of the use of agricultural land, based on a generalized integral assessment of the operation of agricultural land, which allows to identify bottlenecks in agricultural production and outline rational directions for the development of land use. The testing of the algorithm of the methodology and capabilities of the scale for the integral assessment of the efficiency of the use of land resources was carried out on the example of the Non-Black Earth Zone of the Russian Federation. Shown is an unsatisfactory (below the national average) contribution of agricultural production to the gross regional product. On the whole, positive dynamics of agricultural production in the Non-Black Earth Zone was established, which is achieved due to the development of animal husbandry, which is an effective factor in the formation of modern efficient agriculture of the territory, with the orientation of the crop production system on the raw material basis of feed production or the sector of the economy of the agro-industrial complex of the territory.

scholarly journals DAMPAK PERUBAHAN PENGGUNAAN LAHAN PERTANIAN TERHADAP SOSIAL EKONOMI PETANI SEKITAR LOKASI PERTAMBANGAN BANYU URIP KECAMATAN GAYAM KABUPATEN BOJONEGORO

2018 ◽  
Vol 20 (1) ◽  
pp. 50
Author(s):  
Aziz Bahtiar Rifa’i ◽  
Fadjar Hari Mardiansjah
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Agricultural Land ◽  
Positive Impact ◽  
Arable Land ◽  
Mining Area ◽  
Agricultural Land Use ◽  
Socioeconomic Conditions ◽  
Qualitative Approaches ◽  
The Impact

This study examines the impact of agricultural land use change into a petroleum mining area to farmers’ socioeconomic conditions around petroleum mining project area in Gayam District of Kabupaten Bojonegoro. The analyses used a mix method, using both quantitative and qualitative approaches. The quantitative approach is used to determine the impact of agricultural land use change on the social and economic aspects with the respondent farmers were supported with a scoring method to determine the condition of socioeconomic vulnerability of farmers, while the qualitative approach carried out through in-depth interviews to some informants who have been affected by the project. The results shows that the presence of the petroleum mining industry has not had a positive impact yet on the farmers’ socioeconomic conditions. By the 700 hectares of agricultural land conversion, the agricultural production capacity of the area tends to decrease, including by the decreasing of the productivity of some agricultural land in a radius of 500 m from the fenceof the mining area as they are affected by the fence’s spotlight. The farmers' income also tends to decrease because of the decreasing of their working hours as the big loss of agricultural land in the area. As a result, many farmers should work outside of the area to search replacement of the arable land. These situations lead to a moderate condition of social and economic vulnerability for the farmers, especially for those who still have sufficient assets to meet the needs of their economic. 

scholarly journals Assessment of Land Use and Vegetative Cover in Kano Metropolis (from 1975-2015) Employing GIS and Remote Sensing Technology

2020 ◽  
Vol 27 (2) ◽  
pp. 1-7
Author(s):  
M. Haruna ◽  
M.K. Ibrahim ◽  
U.M. Shaibu
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Agricultural Land ◽  
Landsat 8 ◽  
Vegetative Cover ◽  
Gis And Remote Sensing ◽  
Remote Sensing Technology ◽  
Sensing Technology ◽  
Agricultural Planning ◽  
Bare Land

This study applied GIS and remote sensing technology to assess agricultural land use and vegetative cover in Kano Metropolis. It specifically examined the intensity of land use for agricultural and non agricultural purpose from 1975 – 2015. Images (1975, 1995 and 2015), landsat MSS/TM, landsat 8, scene of path 188 and 052 were downloaded for the study. Bonds for these imported scenes were processed using ENVI 5.0 version. The result indicated five classified features-settlement, farmland, water body, vegetation and bare land. The finding revealed an increase in settlement, vegetation and bare land between 1995 and 2015, however, farmland decreased in 2015. Indicatively, higher percentage of land use for non agricultural purposes was observed in recent time. Conclusively, there is need to accord surveying the rightful place and priority in agricultural planning and development if Nigeria is to be self food sufficient. Keywords: Geographic Information System, Agriculture, Remote sensing, Land use, Land cover

scholarly journals Spatial Variation in Bacterioplankton Communities in the Pearl River, South China: Impacts of Land Use and Physicochemical Factors

2020 ◽  
Vol 8 (6) ◽  
pp. 814
Author(s):  
Lei Zhou ◽  
Weiyuan Chen ◽  
Jijia Sun ◽  
Li Liu ◽  
Xiande Huang
Keyword(s):  
Land Use ◽  
Environmental Factors ◽  
Spatial Patterns ◽  
Agricultural Land ◽  
Anthropogenic Activities ◽  
Specific Conductivity ◽  
Pearl River ◽  
Physicochemical Factors ◽  
The Pearl River ◽  
Bacterioplankton Communities

River ecosystems are critical for human and environmental health, with bacterioplankton playing a vital role in biogeochemical cycles. Unveiling the spatial patterns of bacterioplankton communities in relation to environmental factors is important for understanding the processes of microbial variation and functional maintenance. However, our understanding of the correlations among bacterioplankton communities, physicochemical factors, and land use, especially in large rivers affected by intensive anthropogenic activities, remains relatively poor. Here, we investigated the bacterioplankton communities in July 2018 in three main tributaries of the Pearl River, i.e., Beijiang, Xijiang, and Pearl River Delta, based on 16S rRNA high-throughput sequencing. Results showed that the most dominant phyla, Proteobacteria, Actinobacteria, Cyanobacteria, and Planctomycetes accounted for 33.75%, 22.15%, 11.65%, and 10.48% of the total abundance, respectively. The bacterioplankton communities showed remarkable differences among the three tributaries in terms of composition, structure, diversity, and predictive functional profiles. Mantel and partial Mantel tests revealed that the bacterioplankton communities were affected by physicochemical variables (p < 0.01) and land use (p < 0.01). Redundancy analysis identified specific conductivity, dissolved oxygen, agricultural land, ammonium, urban land, and water transparency as the dominant environmental factors influencing the bacterioplankton communities in the Pearl River. Variation partitioning analysis indicated that both physicochemical factors and land use had direct effects on the bacterioplankton community, and that land use may also shape bacterioplankton communities through indirect effects of physicochemical factors on riverine ecosystems. This study provides fundamental information on the diversity, spatial patterns, and influencing factors of bacterioplankton communities in the Pearl River, which should enhance our understanding of how such communities change in response to environmental gradients and anthropogenic activities.

Land Use Assessment of Economic Crops for Photovoltaic Power Plant in Phetchabun Province

2016 ◽  
Vol 839 ◽  
pp. 119-123
Author(s):  
Teerarat Chiramakara ◽  
Prapita Thanarak
Keyword(s):  
Land Use ◽  
Information System ◽  
Geographic Information System ◽  
Power Plant ◽  
Sugar Cane ◽  
Solar Irradiance ◽  
Agricultural Land ◽  
Gis Technology ◽  
Photovoltaic Power ◽  
Major Factors

This research is aiming at the changing land use from agricultural land to photovoltaic power plant. Geographic information system (GIS) technology was used to indicate the unsuitable areas for five economic crops that are paddy, sugar cane, maize, cassava and para rubber. The assess cost, income, and CO2 emission of the economic crops and photovoltaic power plant are the major factors for the unsuitable agricultural land deciding that will be changed to build photovoltaic power plant. The results found that the unsuitable areas for the 5 economic crops are 241,142 rai and the average solar irradiance is 17.6 MJ/m2.day for this areas which is suitable to build the photovoltaic power plant. The profit/losing of paddy, sugar cane, maize, cassava and para rubber in the suitable areas are-1,193 baht/ton, 33 baht/ton, 85 baht/ton, 259 baht/ton and-9,150 baht/ton, respectively while photovoltaic power plant cost and income are 4.12 baht/kWh and 5.65 baht/kWh respectively. CO2 emission of paddy, sugar cane, maize, cassava, para rubber and photovoltaic power plant are 2,315 kgCO2eq/tonpaddy, 37.15 kgCO2eq/ton, 256.12 kgCO2eq/ton, 29.07 kgCO2eq/ton, 153 kgCO2eq/ton and-0.5743 kgCO2eq/kWh, respectively. From these results, land use changing from economic crops planting in unsuitable areas to build photovoltaic power plant is appropriate and worth in the environmental and the economic aspect.

Disturbed Lands: Current Status and Problems of Rational Use (on the Example of Samara Region)

2020 ◽  
Vol 24 (4) ◽  
pp. 60-65
Author(s):  
D.I. Vasilieva ◽  
A.G. Vlasov ◽  
B.A. Tarbaev ◽  
Yu.A. Kholopov
Keyword(s):  
Land Use ◽  
Agricultural Land ◽  
Land Reclamation ◽  
Current Status ◽  
Rational Use

The problems of pollution of agricultural land in the region have been considered, the main sources and types of pollution have been analyzed, legal, methodical and environmental documents on land reclamation have been studied. Activities on the reclamation of disturbed agricultural land are presented on the example of land-use facilities of natural monopolies in the Samara region.

scholarly journals Relationship Study on Land Use Spatial Distribution Structure and Energy-Related Carbon Emission Intensity in Different Land Use Types of Guangdong, China, 1996–2008

2013 ◽  
Vol 2013 ◽  
pp. 1-15 ◽  
Author(s):  
Yi Huang ◽  
Bin Xia ◽  
Lei Yang
Keyword(s):  
Land Use ◽  
Spatial Distribution ◽  
Emission Intensity ◽  
Carbon Emission ◽  
Agricultural Land ◽  
Industrial Land ◽  
Carbon Emission Intensity ◽  
Land Use Types ◽  
Distribution Structure ◽  
Concentration Degree

This study attempts to discuss the relationship between land use spatial distribution structure and energy-related carbon emission intensity in Guangdong during 1996–2008. We quantized the spatial distribution structure of five land use types including agricultural land, industrial land, residential and commercial land, traffic land, and other land through applying spatial Lorenz curve and Gini coefficient. Then the corresponding energy-related carbon emissions in each type of land were calculated in the study period. Through building the reasonable regression models, we found that the concentration degree of industrial land is negatively correlated with carbon emission intensity in the long term, whereas the concentration degree is positively correlated with carbon emission intensity in agricultural land, residential and commercial land, traffic land, and other land. The results also indicate that land use spatial distribution structure affects carbon emission intensity more intensively than energy efficiency and production efficiency do. These conclusions provide valuable reference to develop comprehensive policies for energy conservation and carbon emission reduction in a new perspective.

scholarly journals Advantages of formation non-agricultural land allocation projects based on GIS technologies

2021 ◽  
Vol 227 ◽  
pp. 05001
Author(s):  
Allabergan Babajanov ◽  
Rashid Abdiramanov ◽  
Ilhom Abdurahmanov ◽  
Utkir Islomov
Keyword(s):  
Land Use ◽  
Agricultural Land ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Land Allocation ◽  
Key Factors ◽  
Gis Technology ◽  
Gis Technologies ◽  
Key Indicators ◽  
Official Data

Based on the collection and study of official data, the main criteria for selecting a land plot using GIS (Geographic Information System) technologies for the construction of a water treatment plant are presented. The main stages of data analysis are determined when solving the question of the location of the building using ArcGIS, ArcMap, ArcCatalog and it is scientifically proven that the use of such programs when choosing land plots for such types of construction can save in large amounts of material and labour resources. Together with these, in the conducted study, a methodology was developed and presented for the formation of a database necessary for compiling similar GIS projects, as well as a methodology for a feasibility study for the implementation of land allotment projects for the construction of various economic facilities. The advantages of using GIS technology for non-agricultural land use projects, which are the main form of inter-farm land use, which is a modern measure aimed at rational land use, are described. Key factors and key indicators, as well as expected project results.

scholarly journals Impacts of Anthropogenic Factors on Urban Air Quality in Lagos Metropolis

2019 ◽  
Vol 11 (2) ◽  
pp. 35
Author(s):  
Peter Nkashi AGAN
Keyword(s):  
Land Use ◽  
Air Quality ◽  
Raw Materials ◽  
Anthropogenic Activities ◽  
Anthropogenic Factors ◽  
Land Uses ◽  
Residential Areas ◽  
Industrial Land ◽  
The City

Land use is the utilization and reordering of land cover for human comfort. This process disrupts the pristine state of the environment reducing the quality of environmental receptors like water, air, vegetation etc. Air pollution is introduced into the environment as a result of anthropogenic activities from commercial, industrial and residential areas. These activities are burning of fossil fuels for power generation, transport of goods and services, valorization of raw materials into finished products, bush burning, use of gas cookers, generators and electric stove etc. The introduction of pollutants into the planetary layer of the atmosphere has impacted negatively on the quality of the environment posing threat to humans and the survival of the ecosystem. In Lagos metropolis, commercial activities and high population densities have caused elevated levels of pollution in the city. This study aimed to investigate the spatial distribution of pollutant in Lagos metropolis with a view to revealing the marked spatial/temporal difference in pollutants levels over residential, commercial and industrial land uses. Commercial and industrial land uses revealed higher levels of pollutants than the residential areas. Pearson product moment correlation coefficients revealed strong positive relationship between land use and air quality in the city.

scholarly journals Study on Dynamic Change of Land Use in Qingzhen City Based on GIS Technology and CA-Markov Model

2021 ◽  
Vol 271 ◽  
pp. 02017
Author(s):  
Yi Bai ◽  
Song Li ◽  
Qianqin Zuo ◽  
Wei Zhang
Keyword(s):  
Land Use ◽  
Markov Model ◽  
Agricultural Land ◽  
Flow Direction ◽  
Rapid Development ◽  
Dynamic Change ◽  
Sustainable Use ◽  
Social Economy ◽  
Gis Technology ◽  
Gis And Remote Sensing

With the rapid development of social economy, the sustainable use of land is becoming more and more important. Based on GIS and remote sensing technology, the work processed the land use status data of Qingzhen in 2016 and 2020, obtained the dynamic change data during the period, analyzed its land use structure, quantity and degree. Finally, we used the CA-Markov model to obtain the flow direction and probability of land use type. Results showed that the rate of non-agricultural land increase, and the rate of other land reduce. Suggestions :(1) centralization of land resources and integration of urban and rural development.(2) Continue to develop characteristic industries and create new business cards for the city.(3) Pay attention to the quality of cultivated land and rationally develop unused land.

Sign in / Sign up

Export Citation Format

Share Document