scholarly journals Impact of landscape dynamics and intensities on the ecological land of major cities in Ethiopia

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Mekonnen Amberber Degefu ◽  
Mekuria Argaw ◽  
Gudina Legese Feyisa ◽  
Sileshi Degefa
Keyword(s):  
Land Use ◽  
Spatial Pattern ◽  
Spatial Data ◽  
Agricultural Land ◽  
Addis Ababa ◽  
Landscape Dynamics ◽  
Spatial Data Analysis ◽  
Land Use Intensity ◽  
Bahir Dar ◽  
Ecosystem Resilience

Abstract Background Understanding the dependence of ecological land and dynamics of the human-nature-coupled landscape is crucial for urban ecosystem resilience. In this study, we characterized and compared the Spatio-temporal responses of ecological land to urban landscape dynamics in Bahir Dar, Addis Ababa, Adama, and Hawassa cities in Ethiopia for the last three decades (1990–2020). Three sets of Landsat satellite images, field observations, and urban land indexes were used to produce landscape maps and geo-spatial data analysis. Results The results showed that in all cities ecological land has had changed intensely during 1990–2020 regarding its quantity, and spatial pattern. Besides, the substantial expansion of built-up ecosystems was manifested at the cost of ecological land. The built-up ecosystem was augmented by 17,341.0 ha (32.16%), 2151.27 ha (19.64%), 2715.21 ha (12.21%), and 2599.65 ha (15.71%) for Addis Ababa, Adama, Bahir Dar, and Hawassa cities respectively from 1990 to 2020 periods. A total of 40.97% of the prolonged built-up area was obtained from urban agricultural land alone. Moreover, urban sprawl is likely to continue, which will be outweighed by the loss of the open space ecosystem. The finding also confirmed the value of land-use intensity (LUI) of Addis Ababa (3.31), Bahir Dar (3.56), Hawassa (4.82), Adama (5.04) was augmented parallel with accelerated growth in the built-up ecosystems. Besides, the Integrated land-use dynamics degree (ILUDD) analysis confirmed that the spatial pattern of ecological land loss significantly consistent with LUI in all cities. Conclusion Land-use intensity (LUI) dynamics pattern was followed by urban ecological land to the multi-complex human-dominance ecosystem with a substantial influence on urban greenery and ecosystem services provides. Thus, in all cities, the implementation of effective ecological land management and urban planning policies are required to ensure economic development and ecosystem resilience.

scholarly journals Analisis Alih Fungsi Lahan di Kabupaten Aceh Selatan

2018 ◽  
Vol 3 (2) ◽  
pp. 400-408
Author(s):  
Riski Yunianda ◽  
Syakur Syakur ◽  
Teti Arabia
Keyword(s):  
Land Use ◽  
Spatial Pattern ◽  
Spatial Data ◽  
Agricultural Land ◽  
Spatial Data Analysis ◽  
Agricultural Land Use ◽  
Dry Land ◽  
Land Distribution ◽  
Space Pattern ◽  
Agricultural Use

Abstrak. Seiring terjadinya penyimpangan penggunaan lahan sangat sering terjadi terhadap rencana tata ruang wilayah (RTRW). Daerah pinggiran kota merupakan wilayah yang banyak mengalami perubahan penggunaan lahan terutama perubahan penggunaan lahan pertanian menjadi non pertanian. Penelitian ini bertujuan untuk menganalisis perubahan penggunaan lahan pertanian di Kabupaten Aceh Selatan tahun 2013 dengan tahun 2017 dan menganalisis keselarasan penggunaan lahan pertanian eksisting tahun 2017 dengan pola ruang Kabupaten Aceh Selatan tahun 2013-2033. Metode yang digunakan dalam penelitian ini adalah metode deskriptif dengan teknik survai. Sedangkan analisis data spasial menggunakan SIG dengan konsep extract, overlay dan intersect. Hasil kajian menunjukkan hasil koreksi pada pengunaan lahan pertanian tahun 2013 dengan tahun 2017 didapatlah luas penggunaan lahan pertanian yang telah beralih fungsi seluas 8.041,56 ha, yang mana pada lahan sawah seluas 3.680,30 ha dan pada pertanian lahan kering seluas 4.361,26 ha. Penggunaan lahan pertanian yang telah beralih fungsi tersebut telah menjadi berbagai macam penggunaan lahan lainnya yang tersebar di seluruh Kabupaten Aceh Selatan, penggunaan lahan pertanian yang selaras dengan rencana pola ruang memiliki luas 36.293,85 ha (91,30%), penggunaan lahan yang tidak selaras yaitu Penggunaan lahan eksisting tidak selaras dengan rencana pola ruang seluas 1.513,53 ha (3,81%), dan belum terlaksana atau belum terealisasi terhadap lahan pertanian yang direncanakan terhadap pola ruang atau masih dapat berubah sesuai dengan rencana pola ruang seluas 6.711,08  ha (14,44 %). Analysis of Functional Land Distribution of Agriculture in District Aceh SelatanAbstract. Absorption of deviation of land use is very frequent to spatial planning (RTRW). Suburban areas are areas that have undergone many changes in land use due to changes in agricultural land use to non-agricultural use. This research was conducted for 2013 with 2017 and analysis of existing agricultural land use in 2017 with South Aceh Regency spatial pattern year 2013-2033. The method used in this research is descriptive method with survey technique. While spatial data analysis using GIS concept with overlay and intersect concept. The results showed that agricultural land in 2013 with the year 2017 obtained the wide use of agricultural land that has a function conversion of 8,041.56 ha, which in the rice field area of 3,680.30 ha and on dry land of 4,361.26 ha. The use of converted agricultural land into various land uses scattered throughout the District of South Aceh, different use of agricultural land with plans of wide spatial pattern 36,29,85 ha (91,30%), land use that is not aligned Land use the existing is not aligned with the plan of the pattern of the space of 1,513.53 ha (3.81%), and has not been realized or not yet realized on agricultural land that allows the pattern of space can be changed in accordance with the Plan of Space Pattern covering 6,711,08 ha (14,44%).

scholarly journals Impact of landscapes Dynamics and Intensity on Ecological Land in Major Ethiopia Cities

2021 ◽  
Author(s):  
Mekonnen amberber Degefu
Keyword(s):  
Land Use ◽  
Open Space ◽  
Agricultural Land ◽  
Urban Landscape ◽  
Addis Ababa ◽  
Urban Ecosystem ◽  
Annual Growth Rate ◽  
Bahir Dar ◽  
Ecosystem Resilience ◽  
Landsat Satellite

Abstract Background: Understanding the dependence of ecological land to dynamics of human-nature-coupled landscape is crucial for urban ecosystem resilience. The aim of present study is, explored and compared the spaciotemporal responses of ecological land to urban landscape dynamics in Bahir Dar, Addis Ababa, Adama and Hawassa cities for the last three decades (1990–2020). Three sets of Landsat satellite images from 1990 to 2020 and four urban land indexes were used to produce landscape maps and geospatial data analysis. Result: The result analysis showed the substantial expansion in built up ecosystem which was manifested at the cost of ecological land. The built-up ecosystem totaled 17,491.2ha in 1990, which augmented to 42,298ha (141.8%) in 2020 with an average annual growth rate of 33.73%. A total of 40.97% of the prolonged built-up area was obtained from urban agricultural land alone. Moreover, urban sprawl is likely to continue, which will be outweighed by the loss of open space ecosystem. Besides, land use intensity (LUI) of each city in the years 1990 - 2020 were Addis Ababa (3.31), Hawassa (4.82), Adama (5.04), and Bahir Dar (3.56). Moreover, Integrated land use dynamics degree (ILUDD) was for Addis Ababa (1.7%), Bahir Dar (4.17%), Adama (2.25%) and Hawassa (4.83%). This confirmed that the spatial distribution LUI was significant consistency with ILUDD in all cities. Conclusions: LUI dynamics pattern was followed “urban ecological land to multi-complex human-dominance ecosystem, with a significant influence on urban greenery and ecosystem services provides. Thus, in all cities, the implementation of effective ecological land management and urban planning policies are required for ensure economic development and ecosystem resilience.

scholarly journals Research on Urban Carrying Capacity Based on Multisource Data Fusion—A Case Study of Shanghai

2021 ◽  
Vol 13 (14) ◽  
pp. 2695
Author(s):  
Xiangyang Cao ◽  
Yishao Shi ◽  
Liangliang Zhou
Keyword(s):  
Land Use ◽  
Data Fusion ◽  
Spatial Pattern ◽  
Spatial Data ◽  
Carrying Capacity ◽  
Urban Spaces ◽  
Geographical Information ◽  
Spatial Data Analysis ◽  
Spatial Pattern Analysis ◽  
Local Conditions

Taking Shanghai as an example, this paper uses remote sensing (RS) and geographical information systems (GIS) technology to conduct multisource data fusion and a spatial pattern analysis of urban carrying capacity at the micro scale. The main conclusions are as follows: (1) based on the “production, living and ecology” land functions framework and land use data, Shanghai is divided into seven types of urban spaces to reveal their heterogeneity and compatibility in terms of land use functions. (2) We propose an urban carrying capacity coupling model (UCCCM) based on multisource data. The model incorporates threshold and saturation effects, which improve its power to explain urban carrying capacity. (3) Using the exploratory spatial data analysis (ESDA) technique, this paper studies the spatial pattern of carrying capacity in different urban spaces of Shanghai. (4) We analyse the causes of the cold spots in each urban space and propose strategies to improve the urban carrying capacity according to local conditions.

scholarly journals Analisis Penggunaan Lahan Basah Eksisting Berdasarkan Rencana Tata Ruang Wilayah (RTRW) di Kawasan Peri Urban Kota Banda Aceh (Studi Kasus: Kecamatan Darul Imarah Kabupaten Aceh Besar)

2017 ◽  
Vol 2 (4) ◽  
pp. 528-535
Author(s):  
Desra Sahputra ◽  
Muhammad Rusdi ◽  
Sugianto Sugianto
Keyword(s):  
Land Use ◽  
Spatial Data ◽  
Spatial Planning ◽  
Agricultural Land ◽  
Spatial Data Analysis ◽  
Suburban Areas ◽  
Survey Technique ◽  
Descriptive Method ◽  
Banda Aceh

Abstrak. Penyimpangan penggunaan lahan sangat sering terjadi terhadap rencana tata ruang wilayah (RTRW). Daerah pinggiran kota merupakan wilayah yang banyak mengalami perubahan penggunaan lahan terutama perubahan penggunaan lahan pertanian menjadi non pertanian. Adapun tujuan penelitian untuk menganalisis tingkat keselarasan penggunaan lahan basah eksisting di Kecamatan Darul Imarah berdasarkan RTRW. Metode yang digunakan dalam penelitian ini adalah metode deskriptif dengan teknik survai. Sedangkan analisis data spasial menggunakan SIG dengan konsep extract, overlay dan reclassify. Hasil kajian menunjukkan sebesar 583,94 ha (86,68%) sawah eksisting di kawasan kajian telah selaras dengan RTRW dan yang tidak selaras yaitu sebesar 0,15 ha (0,02%). Sementara 89,57 ha (13,3%) sawah eksisting lainnya ditemukan belum selaras dengan RTRW Kabupaten Aceh Besar tahun 2012-2032.The Use of Existing Wetland Analysis Based On Spatial Planning in Peri Urban Area in Banda Aceh (Case study: Darul Imarah Subdistrict Aceh Besar Regency)Abstract. The deviation of land use is very frequent happened to spatial planning. Suburban areas are areas which undergo many changes in land use, especially changes in the use of agricultural land to non-agricultural. The purpose of the research is to analyze the aligned level of the existing wetland use in Darul Imarah sub-district based on spatial planning. The method used in this research was descriptive method with survey technique. While the spatial data analysis was using GIS with extract, overlay and reclassify concept. The result of the study showed that 583.94 ha (86.68%) of the existing fields in the study area were aligned with the RTRW and the non-aligned ones were 0.15 ha (0.02%). Meanwhile, 89.57 ha (13.3%) of other existing rice fields had not been aligned with the spasial planning of Aceh Besar Regency in 2012-2032.

Diversity and abundance of earthworms across an agricultural land-use intensity gradient

2008 ◽  
Vol 100 (1-2) ◽  
pp. 83-88 ◽  
Author(s):  
R SMITH ◽  
C MCSWINEY ◽  
A GRANDY ◽  
P SUWANWAREE ◽  
R SNIDER ◽  
...  
Keyword(s):  
Land Use ◽  
Agricultural Land ◽  
Agricultural Land Use ◽  
Land Use Intensity ◽  
Intensity Gradient ◽  
Land Use Intensity Gradient

scholarly journals Land and Forest Management by Land Use/ Land Cover Analysis and Change Detection Using Remote Sensing and GIS

2016 ◽  
Vol 9 (1) ◽  
pp. 63-77 ◽  
Author(s):  
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Forest Management ◽  
Land Cover ◽  
Spatial Data ◽  
Management Strategies ◽  
Geographical Information ◽  
Spatial Data Analysis ◽  
Study Region ◽  
Rugged Terrain

Abstract Remote sensing and Geographical Information System (GIS) are the most effective tools in spatial data analysis. Natural resources like land, forest and water, these techniques have proved a valuable source of information generation as well as in the management and planning purposes. This study aims to suggest possible land and forest management strategies in Chakia tahsil based on land use and land cover analysis and the changing pattern observed during the last ten years. The population of Chakia tahsil is mainly rural in nature. The study has revealed that the northern part of the region, which offers for the settlement and all the agricultural practices constitutes nearly 23.48% and is a dead level plain, whereas the southern part, which constitute nearly 76.6% of the region is characterized by plateau and is covered with forest. The southern plateau rises abruptly from the northern alluvial plain with a number of escarpments. The contour line of 100 m mainly demarcates the boundary between plateau and plain. The plateau zone is deeply dissected and highly rugged terrain. The resultant topography comprises of a number of mesas and isolated hillocks showing elevation differences from 150 m to 385 m above mean sea level. Being rugged terrain in the southern part, nowadays human encroachment are taking place for more land for the cultivation. The changes were well observed in the land use and land cover in the study region. A large part of fallow land and open forest were converted into cultivated land.

Land use intensity of official mineral extraction in the Amazon region: linking economic and spatial data

2020 ◽  
Author(s):  
Pedro Walfir M. Souza‐Filho ◽  
Felipe Lucia Lobo ◽  
Rosane B. L. Cavalcante ◽  
José Aroudo Mota ◽  
Wilson R. Nascimento ◽  
...  
Keyword(s):  
Land Use ◽  
Spatial Data ◽  
Amazon Region ◽  
Land Use Intensity ◽  
Mineral Extraction

scholarly journals Spatial-Temporal Differentiation Analysis of Agricultural Land Use Intensity and Its Driving Factors at the County Scale: A Case Study in Hubei Province, China

2020 ◽  
Vol 17 (18) ◽  
pp. 6910
Author(s):  
Li Yu ◽  
Zhanqi Wang ◽  
Hongwei Zhang ◽  
Chao Wei
Keyword(s):  
Land Use ◽  
Agricultural Land ◽  
Hubei Province ◽  
Driving Factors ◽  
The Other ◽  
Moran’S I ◽  
Agricultural Land Use ◽  
Land Use Intensity ◽  
Moran's I ◽  
Continuous Growth

Scientifically characterizing the spatial-temporal distribution characteristics of agricultural land use intensity and analyzing its driving factors are of great significance to the formulation of relevant agricultural land use intensity management policies, the realization of food safety and health, and the achievement of sustainable development goals. Taking Hubei Province as an example, and taking counties as the basic evaluation unit, this paper establishes an agricultural land use intensity evaluation system, explores the spatial autocorrelation of agricultural land use intensity in each county and analyzes the driving factors of agricultural land use intensity. The results show that the agricultural land use intensity in Hubei Province increased as a whole from 2000 to 2016, and the spatial agglomeration about the agricultural land use intensity in Hubei Province experienced a process of continuous growth and a fluctuating decline; the maximum of the Global Moran’s I was 0.430174 (in 2007) and the minimum was 0.148651 (in 2001). In terms of Local Moran’s I, H-H agglomeration units were mainly concentrated in two regions: One comprising the cities of Huanggang, Huangshi and Ezhou, and the other the cities of Xiangyang and Suizhou; the phenomenon is particularly obvious after 2005. On the other hand, factors such as the multiple cropping index (MCI) that reflect farmers’ willingness to engage in agricultural production have a great impact on agricultural land use intensity, the influence of the structure of the industry on agricultural land use intensity varies with the degree of influence of different industries on farmers’ income, and agricultural fiscal expenditure (AFE) has not effectively promoted the intensification of agricultural land use. The present research has important significance for enhancing insights into the sustainable improvement of agricultural land use intensity and for realizing risk control of agricultural land use and development.

scholarly journals SPATIAL PATTERN OF SUSTAINABLE URBAN DEVELOPMENT INDICATOR FOR THE MONTREAL URBAN COMMUNITY

2015 ◽  
Vol 39 (4) ◽  
pp. 220-231 ◽  
Author(s):  
Shohel Reza Amin ◽  
Umma Tamima
Keyword(s):  
Sustainable Development ◽  
Urban Development ◽  
Spatial Pattern ◽  
Spatial Data ◽  
Urban Community ◽  
Spatial Data Analysis ◽  
Sustainable Urban Development ◽  
Development Indicator ◽  
Development Plans ◽  
The City

The City of Montreal initiated a First Strategic Plan for Sustainable Development in 2005 followed by a Community and Corporate Sustainable Development Plan in 2010–2015. This study proposes a sustainable urban development indicator (SUDI) for each Montreal Urban Community (MUC) to evaluate the achievements of sustainable development plans. This study identifies thirty-two variables as the attributes of sustainable urban development. The multivariate technique and Exploratory Spatial Data Analysis are applied to determine the spatial pattern of SUDI for each MUC. The spatial pattern of SUDI identifies that Ville Marie, Verdun, Sud-Ouest, Mercier-Hochelaga-Maisonneuve and Plateau Mont-Royal have strong sustainable development. The findings of this study help the City of Montreal to understand the improvement of the sustainable development plans for Montreal city and to distribute the municipal budget for the community benefits accordingly.

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