The Impact Of Population Growth On Health And Educational Services Distribution In Al-Salt City (1994 - 2015)

Abstract Background Evaluating the impacts of land-use/land-cover (LULC) changes on ecosystem service values (ESVs) is essential for sustainable use and management of ecosystems. In this study, we evaluated the impact of human activity driven LULC changes on ESVs over the period 1982–2016/17 in contrasting agro-ecological environments: Guder (highland), Aba Gerima (midland), and Debatie (lowland) watersheds of the Upper Blue Nile basin, Ethiopia. Results During the study period, the continuous expansion of cultivated land at the expense of natural vegetation (bushland, forest, and grazing land) severely reduced the total ESV by about US$ 58 thousand (35%) in Aba Gerima and US$ 31 thousand (29%) in Debatie watersheds. In contrast, the unprecedented expansion of plantations, mainly through the planting of Acacia decurrens, led, from 2006, to a ESV rebound by about US$ 71 thousand (54%) in Guder watershed, after it had decreased by about US$ 61 thousand (32%) between 1982 and 2006. The reduction in natural forest area was the major contributor to the loss of total ESV in the study watersheds, ranging from US$ 31 thousand (63%) in Debatie to US$ 96.9 thousand (70%) in Guder between 1982 and 2016/17. On an area-specific basis, LULC changes reduced the average ESV from US$ 560 ha−1 year−1 (1982) in Guder to US$ 306 ha−1 year−1 (2017) in Debatie watersheds. Specific ESVs such as provisioning (mainly as food production) and regulating services (mainly as erosion control and climate regulation) accounted for most of the total ESVs estimated for the study watersheds. Conclusions In most cases, the total and specific ESVs of the watersheds were negatively associated with the population growth, which in turn was positively associated with the expansion of cultivated land over the study period. In Guder, however, ESVs were positively associated with population growth, especially after 2012. This is mainly due to the expansion of Acacia decurrens plantations. Our results suggest, therefore, that future policy measures and directions should focus on improving vegetation cover through planting multipurpose trees such as Acacia decurrens to prevent future loss of ESV in the midland and lowland regions of the Upper Blue Nile basin and beyond. However, caution must be taken during plantation of invasive species as they may have undesirable consequences.

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Indicators of Land, Water, Energy and Food (LWEF) Nexus Resource Drivers: A Perspective on Environmental Degradation in the Gidabo Watershed, Southern Ethiopia

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18105181 ◽

2021 ◽

Vol 18 (10) ◽

pp. 5181

Author(s):

Zinabu Wolde ◽

Wu Wei ◽

Haile Ketema ◽

Eshetu Yirsaw ◽

Habtamu Temesegn

Keyword(s):

Population Growth ◽

Path Analysis ◽

Driving Factors ◽

Consumption Patterns ◽

Southern Ethiopia ◽

Driving Factor ◽

Path Coefficients ◽

Resource Degradation ◽

The Impact ◽

Land Water

In Ethiopia, land, water, energy and food (LWEF) nexus resources are under pressure due to population growth, urbanization and unplanned consumption. The effect of this pressure has been a widely discussed topic in nexus resource literature. The evidence shows the predominantly negative impact of this; however, the impact of these factors is less explored from a local scale. As a result, securing nexus resources is becoming a serious challenge for the country. This necessitates the identification of the driving factors for the sustainable utilization of scarce LWEF nexus resources. Our study provides a systemic look at the driving factor indicators that induce nexus resource degradation. We use the Analytical Hierarchical Process (AHP) to develop the indicators’ weights, and use a Path Analysis Model (PAM) to quantitatively estimate the effect of the driving factor indicators on the LWEF nexus resources. The results indicate that social (48%), economic (19%), and policy and institutional changes (14%) are the major nexus resource driving factor indicators. The path analysis results indicate that among the social driving factor indicators, population growth and consumption patterns have a significant direct effect on the LWEF nexus, with path coefficients of 0.15 and 0.089, respectively. Similarly, the potential of LWEF nexus resources is also influenced by the institutional and policy change drivers, such as outdated legislation and poor institutional structure, with path coefficients of 0.46 and 0.39, respectively. This implies that population growth and consumption patterns are the leading social drivers, while outdated legislation and poor institutional structures are the institutional and policies change drivers which have a potential impact on LWEF nexus resource degradation. Similarly, other driving factors such as environmental, economic and technological factors also affect nexus resources to varying degrees. The findings of our study show the benefits of managing the identified driving factors for the protection of LWEF nexus resources, which have close links with human health and the environment. In order to alleviate the adverse effects of driving factors, all stakeholders need to show permanent individual and collective commitment. Furthermore, we underline the necessity of applying LWEF nexus approaches to the management of these drivers, and to optimize the environmental and social outcomes.

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The impact of population growth and climate change on food security in Africa: looking ahead to 2050

International Journal of Agricultural Sustainability ◽

10.1080/14735903.2017.1293929 ◽

2017 ◽

Vol 15 (2) ◽

pp. 124-135 ◽

Cited By ~ 23

Author(s):

C. Hall ◽

T. P. Dawson ◽

J. I. Macdiarmid ◽

R.B. Matthews ◽

P. Smith

Keyword(s):

Climate Change ◽

Food Security ◽

Population Growth ◽

The Impact

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The Impact of Urbanization on Water Quality: Case Study on the Alto Atoyac Basin in Puebla, Mexico

Sustainability ◽

10.3390/su14020667 ◽

2022 ◽

Vol 14 (2) ◽

pp. 667

Author(s):

Andrés Estrada-Rivera ◽

Alfonso Díaz Fonseca ◽

Samuel Treviño Mora ◽

Wendy Argelia García Suastegui ◽

Edith Chávez Bravo ◽

...

Keyword(s):

Water Quality ◽

Surface Water ◽

Population Growth ◽

Industrial Development ◽

Correlation Coefficients ◽

Pollution Index ◽

Surface Water Quality ◽

Environmental Implications ◽

Rapid Urbanization ◽

The Impact

Population growth, poorly planned industrial development and uncontrolled production processes have left a significant footprint of environmental deterioration in the Alto Atoyac watershed. In this study, we propose using the integrated pollution index (PI) to characterize the temporary variations in surface water quality during the rapid urbanization process in the municipalities of San Martín Texmelucán (SMT) and Tepetitla de Lardizabal (TL), in the states of Puebla and Tlaxcala, between 1985 and 2020. We assessed the correlation between the population growth rate and the water quality parameters according to the Water Quality Index (ICA). The contribution of each polluting substance to the PI was determined. The industry database was created and the increase in population and industry, and their densities, were estimated. The results indicated that the temporal pattern of surface water quality is determined by the level of urbanization. The water integrated pollution index (WPI) increased with the passage of time in all the localities: SLG 0.0 to 25.0; SMTL 25.0 to 29.0; SRT 4.0 to 29.0; VA 6.0 to 30.0; T 3.5 to 24.0 and SMA 4.0 to 27.0 from 2010 to 2020, respectively. The correlation coefficients between the five parameters (BOD5, COD, CF, TU and TSS) in the six localities were positive with the population. The values that showed a higher correlation with the population were: SLG (FC 0.86), SMTL (BOD5 0.61, COD 0.89, TSS 0.64) and SRT (TU 0.83), corresponding to highly polluted localities, which generates complex and severe environmental implications due to the unsustainable management of water resources. Achieving the sustainability of water in the watershed is a challenge that should be shared between society and state. This type of research can be a useful tool in making environmental management decisions.

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Market Access and the Concentration of Economic Activity in a System of Declining Cities

REGION ◽

10.18335/region.v5i3.223 ◽

2018 ◽

Vol 5 (3) ◽

pp. 97-109

Author(s):

Luis Eduardo Quintero ◽

Paula Restrepo

Keyword(s):

Population Growth ◽

Market Access ◽

Population Decline ◽

Market Potential ◽

Population Loss ◽

City Population ◽

Alternative Measures ◽

System Of Cities ◽

The Impact ◽

The City

Market access has been widely used as a measure of agglomeration spillovers in models that seek to explain productivity, economic or population growth at the city level. Most results have shown that having higher market access is beneficial to these outcomes. These results, both theoretical and empirical, have been obtained in a context of population growth. This article examines the impact that market access has on a system of cities that has suffered a negative population shock. An extended version of the Brezis and Krugman (1997) model of life cycle of cities predicts that a system of cities experiencing population loss will see a relative reorganization of its population from small to larger cities, and that higher market potential will make this movement stronger. We test these predictions with a comprehensive sample of cities in Eastern Europe and Central Asia. We find that having higher market access - when operating in an environment of population decline - is detrimental to city population growth. This result is robust to different measures of market access that use population. Alternative measures that use economic size rather population are tested, and the result weaker. A possible explanation is that using NLs restricts the sample to only using larger cities.

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Trends of forest area and population and the impact of population on forest area per hectare in Serbia without APS

Glasnik Sumarskog fakulteta ◽

10.2298/gsf1206183r ◽

2012 ◽

pp. 183-196

Author(s):

Nenad Rankovic

Keyword(s):

Population Density ◽

Population Growth ◽

Forest Cover ◽

Forest Policy ◽

Forest Area ◽

Economic Changes ◽

Policy Measures ◽

Per Capita ◽

The Impact

Socio-economic changes throughout history have shaped the attitude towards the forest and most significant ones are changes in terms of population. Over the centuries population and population density have had a significant impact on deforestation and the reduction of forest areas. Therefore, it is important to check what kind of trends are concerned and how population growth affects forest areas, forest cover and forest area per capita. These elements are important for assessing the direction, intensity of activity and the degree of success in the implementation of all forest policy measures in Serbia.

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Print Advertising of Educational Services: an investigation on the impact of the pictures facilities and testimonial about attitudes

Review of Business Management ◽

10.7819/rbgn.v12i35.368 ◽

2010 ◽

pp. 224-243

Author(s):

Eduardo André Teixeira Ayrosa ◽

Marcos Henrique Facó

Keyword(s):

Educational Services ◽

Print Advertising ◽

The Impact

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Some patterns and social impacts of external migration on a below-replacement population: Denmark by the turn of the millennium

Finnish Yearbook of Population Research ◽

10.23979/fypr.44900 ◽

1996 ◽

pp. 136-149

Author(s):

Hans O Hansen ◽

Paul S. Maxim

Keyword(s):

Population Growth ◽

Social Impacts ◽

Turn Of The Millennium ◽

Differential Fertility ◽

The Past ◽

Naturalized Citizens ◽

Wide Range ◽

And Migration ◽

The Impact ◽

External Migration

As with many other nations in Europe, Denmark has experienced below-replacement fertility over the past three decades. The impact on population growth of the recent fertility decline to a large extent has been offset by a positive net balance of external migration. To provide a factual basis for a wide range of policy issues and social and cultural impacts we start by studying external migration, differential fertility, naturalization of foreign nationals, and population growth in the framework of multidimensional life models. Migrants and naturalized citizens tend to have reproductive behavior and sex/age profiles that differ significantly from those of the remaining population. To study some concerted demographic and social impacts of such differentials, we construct a number of midterm projections based on existing and expected development of fertility, mortality, and migration.

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