scholarly journals Spatio-Temporal Reorganization of Cropland Development in Central Asia during the Post-Soviet Era: A Sustainable Implication in Kazakhstan

2018 ◽  
Vol 10 (11) ◽  
pp. 4042 ◽  
Author(s):  
Wei Wei ◽  
Yuanjun Zhu ◽  
Hao Li ◽  
Kebin Zhang ◽  
Baitian Wang ◽  
...  
Keyword(s):  
Land Use ◽  
Food Security ◽  
Soviet Union ◽  
Policy Making ◽  
Security Policy ◽  
National Level ◽  
European Space Agency ◽  
Sustainable Land Use ◽  
Rapid Urbanization ◽  
Spatio Temporal

The abandonment and cultivation of croplands in the Eurasian Steppe has become the focus of global and regional food security and agricultural policy-making. A large area of cropland in some post-Soviet countries has proven to be abandoned with the disintegration of the Soviet Union; however, it is unclear as to whether Kazakhstan also experienced a similar change as one of the main food providers for the former Soviet Union. In this study, we used the annual land cover dataset (1992–2015) from the European Space Agency, Climate Change Initiative (ESA-CCI) to detect spatio-temporal characteristics of rainfed and irrigated cropland changes in Kazakhstan. The Mann–Kendall test and regime shift analysis showed that rainfed and irrigated cropland at national level had a significant increasing trend with a significant rising up to 1999 and stagnation during 2000–2015, which was further confirmed with analysis at 14 regions. The greatest contributor to rainfed and irrigated croplands was steppes, followed by shrinkage of water bodies since 2005 to a great extent, rapid urbanization process resulted in losses of a part of irrigated oases. The trend surface analysis indicated that reorganized stable pattern characterized by rainfed cropland in north and irrigated cropland in south was driven by the strategy of the gradual agricultural development of oases. The nonexistence of cycle between the abandonment and recultivation proved that newly-gained cropland from steppe may be less degraded and more productive for sustainable land use in Kazakhstan. In conclusion, this study can provide strong evidence for sustainable land use and a basis for food security policy-making in Kazakhstan, and even all of the Central Asian countries in the future.

scholarly journals Spatiotemporal Influence of Land Use/Land Cover Change Dynamics on Surface Urban Heat Island: A Case Study of Abuja Metropolis, Nigeria

2021 ◽  
Vol 10 (5) ◽  
pp. 272
Author(s):  
Auwalu Faisal Koko ◽  
Wu Yue ◽  
Ghali Abdullahi Abubakar ◽  
Akram Ahmed Noman Alabsi ◽  
Roknisadeh Hamed
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Land Surface ◽  
Urban Expansion ◽  
Urban Heat Islands ◽  
Sustainable Land Use ◽  
Land Use Land Cover ◽  
Urban Centers ◽  
Rapid Urbanization ◽  
Urban Heat

Rapid urbanization in cities and urban centers has recently contributed to notable land use/land cover (LULC) changes, affecting both the climate and environment. Therefore, this study seeks to analyze changes in LULC and its spatiotemporal influence on the surface urban heat islands (UHI) in Abuja metropolis, Nigeria. To achieve this, we employed Multi-temporal Landsat data to monitor the study area’s LULC pattern and land surface temperature (LST) over the last 29 years. The study then analyzed the relationship between LULC, LST, and other vital spectral indices comprising NDVI and NDBI using correlation analysis. The results revealed a significant urban expansion with the transformation of 358.3 sq. km of natural surface into built-up areas. It further showed a considerable increase in the mean LST of Abuja metropolis from 30.65 °C in 1990 to 32.69 °C in 2019, with a notable increase of 2.53 °C between 2009 and 2019. The results also indicated an inverse relationship between LST and NDVI and a positive connection between LST and NDBI. This implies that urban expansion and vegetation decrease influences the development of surface UHI through increased LST. Therefore, the study’s findings will significantly help urban-planners and decision-makers implement sustainable land-use strategies and management for the city.

scholarly journals Impact of Settlement Growth on Yenagoa’s Urban Environment

2021 ◽  
Vol 2 (1) ◽  
pp. 24-29
Author(s):  
E. E. Imaitor-Uku ◽  
O. B. Owei ◽  
L. Hart ◽  
A. Ayotamuno
Keyword(s):  
Land Use ◽  
Urban Environment ◽  
Sustainable Land Use ◽  
Mapping Technique ◽  
Citizen Education ◽  
Management Framework ◽  
Urban Planning And Development ◽  
Spatio Temporal ◽  
The City ◽  
Settlement Growth

This research is a study on the assessment of settlement growth and its impact on the urban environment in Yenagoa Metropolis. Landsat imageries of 1988, 1996, 2004, 2012 and 2020 were acquired from the United Sates Geographical Survey. Supervised image classifications using level 1 classification scheme was adopted to extract LandUse/LandCover. The five Epochs of images were used to extract the built-up areas, water bodies and vegetation areas. The area (ha) of land use for each epoch was determined using clipping images. The spatio-temporal changes were determined as a percentage of LULC per epoch and which was done following standard methods. Mapping technique was used to compare satellite imageries. Findings showed that built up areas was 1,279.81 in 1988, 2,497.87 in 1996, 4,554.73 in 2009, 7,804.30 in 2012 and 10,447.50 in 2020. While the percentage change of built-up are in 1988 was 6.12%, 1996 was 11.94%, 2004 was 21.78%, 2012 was 34.31% and 2020 was 30.09%, respectively. It is therefore recommended here that government should empower urban planning and development agencies, legally and financially to carry out their responsibility to implement existing master plan of the city. Engage in citizen education on how to contribute in managing the environment and sustainable land use management framework in the study area for proper management of the urban environment to enhance sustained settlement growth in the city.  

On the absurdity of rapid urbanization: Spatio-temporal analysis of land-use changes in Morogoro, Tanzania

Cities ◽  
2020 ◽  
Vol 107 ◽  
pp. 102876
Author(s):  
Neema Simon Sumari ◽  
Patrick Brandful Cobbinah ◽  
Fanan Ujoh ◽  
Gang Xu
Keyword(s):  
Land Use ◽  
Land Use Changes ◽  
Temporal Analysis ◽  
Rapid Urbanization ◽  
Spatio Temporal

scholarly journals Non-Monetary Assessment and Mapping of the Potential of Agroecosystem Services in Rural Slovakia

2020 ◽  
Vol 12 (2) ◽  
pp. 257-276
Author(s):  
Jarmila Makovníková ◽  
Boris Pálka ◽  
Stanislav Kološta ◽  
Filip Flaška ◽  
Katarína Orságová ◽  
...  
Keyword(s):  
Land Use ◽  
Ecosystem Services ◽  
Soil Texture ◽  
Slovak Republic ◽  
National Level ◽  
Climatic Conditions ◽  
Sustainable Land Use ◽  
Land Use Management ◽  
Biodiversity Protection

AbstractThe updated Slovak National Biodiversity Strategy to 2020 is a key document in the field of biodiversity protection, and assessment together with mapping of the value of different ecosystem services is one of its most important objectives. This study applies the first non-monetary assessment and pilot mapping of agroecosystem services in the Slovak Republic at seven model sites located in the main climatic areas and estimates the agroecosystem services potential of Slovakia as a rural country with a transformed multi-criteria approach used at national level. It suggests that the distribution of the value of agroecosystem services is geographically different probably due to climatic conditions, slope and soil texture. Our assessment provides a suitable basis for further investigation of agroecosystem services and contributes to optimizing sustainable land use management in Slovakia.

scholarly journals Who really counts in Iran’s National Food Assistance Program? Lessons from multi-stakeholder processes in the wicked policy area of food security

2022 ◽  
Vol 38 (1) ◽  
Author(s):  
Mona Pourghaderi ◽  
Nasrin Omidvar ◽  
Amirhossein Takian ◽  
Arlette Saint Ville ◽  
Hannaneh Mohammadi Kangarani ◽  
...  
Keyword(s):  
Food Security ◽  
Low Income ◽  
Policy Making ◽  
Security Policy ◽  
Food Assistance ◽  
Assistance Program ◽  
Nutrition Research ◽  
Food And Nutrition ◽  
Multi Stakeholder ◽  
Food Assistance Program

Abstract: Multi-stakeholder processes - as a necessary part in the development of public policies - can provide diverse perspectives to inform and to improve food security policy-making. Iran’s National Food Assistance Program (NFAP) is one of the major welfare programs in Iran that reduces food insecutiry to low-income households. This study aimed to identify and to categorize actual and potential stakeholders in NFAP using the stakeholder salience model. According to Mitchell’s theory, stakeholders’ attributes (power, legitimacy, and urgency) were assessed based on the nature of their interactions, roles, and level of engagement. Results revealed a number of significant but marginalized stakeholders, including Iranian Ministry of Health (office of community nutrition improvement), academia, center for food and nutrition research, target group, charities, and international organizations, who have not received any targeted organizational attention and priority to their claims. The unbalanced attention provided to some stakeholder groups characterized as “definitive” and “dominant” and ignoring some important ones will jeopardize long-term viability and undermine support for the program with inevitable declines in legitimacy. Understanding the change in the stakeholders’ characteristics is the main variable to determine the allocation of organizational resources in response to different and rising stakeholders’ demands and possibly the projects outcomes. This will facilitate and enhance the possibility of knowledge exchange and learning, and greater trust among stakeholders during the food and nutrition policy-making process.

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