scholarly journals Overview of Research on Sustainable Agriculture in Developing Countries. The Case of Mexico

2021 ◽  
Vol 13 (15) ◽  
pp. 8563
Author(s):  
Claudia A. Ochoa-Noriega ◽  
Juan F. Velasco-Muñoz ◽  
José A. Aznar-Sánchez ◽  
Ernesto Mesa-Vázquez

One of the principal challenges faced by Mexican agriculture is the development of management models that are able to increase production while respecting the environment and generating wealth for society as a whole. In recent years, the number of studies analysing the sustainability of Mexican agriculture has grown significantly. The purpose of this study is to analyse the evolution of the research on the sustainability of agriculture in Mexico. For this purpose, a review and bibliometric analysis of a sample of 867 articles was carried out. The results reveal that the research has focused on the development of sustainable agricultural models in vulnerable rural areas, the sustainable exploitation of agroforestry systems, the development of energy crops for different uses, water resource management and land uses and their changes, conservation farming and climate change. Although research focused on sustainability is still in its early stages, it has become a priority field. A need to promote research from the economic and social disciplines may be observed, together with holistic projects that include the three pillars of sustainability (social, economic and environmental). This study could be useful to researchers in this field as it identifies the recent trends and principal agents that drive knowledge.

2019 ◽  
pp. 1-13
Author(s):  
Gebru Eyasu Siyum ◽  
Tuemay Tassew

Mitigation of climate change is one of the major environmental challenges facing the globe. In this context, homegarden agroforestry systems (HGAFs) have large potential for climate change mitigation. Therefore, this study was initiated to estimate the biomass and soil carbon stocks of HGAFs in relation to adjacent Natural Forest (NF). It also analyzed the relationship between woody species diversity, evenness and richness with biomass and soil carbon stocks. Three sites were purposely selected on the basis of the presence of HGAFs and NF adjacent to each other. Random sampling was used to select representative homegardens from the study population. In NF, a systematic sampling technique was employed. A total of 60 plots with a size of 10 m x 20 m were used to collect vegetation and soil data in both land uses. Soil samples were collected from each plot of the samples laid for vegetation sampling. Accordingly, 120 composite and 120 undisturbed soil samples from 0-30 cm and 30-60 cm soil depths were collected for soil organic carbon (SOC) and bulk density analysis respectively. Biomass estimation for each woody species was analyzed by using appropriate allometric equations. The result showed that the total amount of carbon stocks was 148.32±35.76 tons ha-1 and 157.27±51.61 tons ha-1 in HGAFs and adjacent NF respectively which did not vary significantly between the two studied land uses (P > 0.05). The finding also shows a positive but non-significant (P>0.05) relationship between carbon stocks and woody species diversity, richness, and evenness. Specifically, in NF lands, woody species diversity with SOC (r=0.36) and in HGAFs species richness with biomass carbon (r=0.39) was correlated positively and significantly (P=0.05). We concluded that HGAFs have the same potential as the NF for carbon stock accumulation and to counteract the loss of biomass.


2018 ◽  
Vol 9 (4) ◽  
pp. 1068
Author(s):  
Michael Shadrack Mangula ◽  
Joseph A. Kuzilwa ◽  
Simon S. Msanjila ◽  
Isack A. Legonda

Energy access plays a crucial role in enhancing the social-economic development among the household members in any nation. Notwithstanding the role of energy access in improving the livelihood of people, the problem of energy access has revealed to be more serious in rural areas of Tanzania. The increased in problem of energy access in rural areas of the developing countries is due to the absence of a unified set of indicators for measuring the energy access to rural households from developing countries including Tanzania. This study therefore, aimed at determining the indicators of energy access in rural areas of Tanzania.The study employed Cross- sectional type of the research design to collect data from 384 heads of household from the rural areas of Njombe and Iringa regions in Tanzania. Moreover, the Quantitative Exploratory Factor Analysis using Principal Component analysis and varimax method was employed to determine the indicators of energy access. The identified indicators using exploratory Factor Analysis was further confirmed using Confirmatory Factor Analysis. The study findings revealed that, the indicators for measuring the provision of energy access to rural households in developing countries including Tanzania ranked based on its importance are: availability, affordability, durability, efficient, no production of smokes, easy to use and ability to keep cooking facilities clean.Based on these findings, the study concludes that, indicators of energy access are important in enhancing the social economic development and improvement of the livelihood of people in rural areas. In the light of this conclusion the study recommends to government energy experts and other practitioners of to use the identified indictors when measuring energy access to rural households in Tanzania in order to improve the livelihood and their standard of living.


2012 ◽  
Vol 3 (1) ◽  
pp. 1-3
Author(s):  
Thi Thu Ha Chu

Vietnam is one of the countries suffering from the most serious adverse effects due to climate change and sea level rise. The main cause of climate change is the increased activities generating greenhouse gases. Organic waste is the main source of carbon dioxide emission, which has the largest concentration among different kinds of greenhouse gases in the earth’s atmosphere. The conversion of organic waste and biomass into energy contributes not only to supply cleaner energy but also to reduce emissions of greenhouse gases. Vietnam has a large potential of biomass and agricultural by-products. The technologies to turn biomass into different kinds of bio-energies were developed and applied all over the world. Biogas was called as "brown revolution" in the field of new energy. Biogas production technology now has been studied and applied widely in the world, particularly in developing countries with warm climate that is suitable for anaerobic fermentation of organic waste. The biogas digester can be built with any capacity, needs small investment and the input materials are widely available. The biogas energy is used for many purposes such as cooking, lighting, running engines, etc. It is a production technology quite consistent with the economy of developing countries and really brings to life more civilized and convenient to rural areas.


2018 ◽  
Vol 6 (2) ◽  
pp. 55-59
Author(s):  
Abegunrin G. Kolawole ◽  
Abegunrin T. Timothy

This study highlights the various effects climate change has on the availability of food for the teeming populace of Nigeria to ensure food security. Developing countries are plagued by inadequate access to good quality and quantity of food to ensure growth and development, thereby resulting into a lot of challenges like malnutrition, health issues, infant mortality, and migration to other areas. The current practice of Agriculture in Nigeria was taken into consideration, the impact it has on the entire population and the effects climate change has on it. Nigeria, like most other developing countries, is affected in a very important and critical manner by the adverse effects of environmental crises, most of which are direct influences of climate change and this change in the long run has effect on food security. The study recommended that infrastructural facilities, social interventions in the form of food aid, and policies which encourage agricultural production should be put in place in rural areas to help reduce the incidence of rural-urban migration and to encourage agricultural production so as to ensure that all the citizens of the country are food secured.


2021 ◽  
Author(s):  
Walter Leal Filho ◽  
Liza Tuladhar ◽  
Chunlan Li ◽  
Abdul-Lateef Babatunde Balogun ◽  
Marina Kovaleva ◽  
...  

Abstract Climate change is associated with extreme weather events such as heat waves, droughts, floods, hurricanes, storms, and wildfires globally. Within cities, the impacts of climate change are quite conspicuous as the percentage of urban dwellers is expected to reach about 70% by 2050. As the planet warms up, temperatures in cities are likely to increase more than in rural areas. These dual challenges severely impact urban residents. This paper reports on a study on the impacts of climate change on the health and liveability of a set of 15 cities, in industrialised and developing countries from around the world. The assessment, based on the literature, examined the average temperature, maximum temperature and relative humidity of each city, and this data has been correlated with their liveability. It was complemented by a survey focused on residents of 109 cities from Africa, Asia, Europe, Latin America, North America Oceania. The findings show that developing countries seem to be especially struggling to adapt to the threats caused by increasing temperatures. Moreover, cities in industrialised countries are not immune to climate change impacts. The paper also outlines some mitigation and adaptation measures, which can be implemented to improve the liveability in cities and the well-being of their populations, and to make them more sustainable.


2015 ◽  
Vol 5 (1) ◽  
pp. 47
Author(s):  
Soto-Montes Gloria ◽  
Herrera-Pantoja Marina

<p class="emsd"><span lang="EN-GB">More than half of the world’s population currently lives in urban areas. The fastest growing megacities are occurring mainly in developing countries, where stresses on water systems already pose major challenges for governments and water utilities. Climate change is expected to further burden water resource management, putting at risk governments’ ability to guarantee secure supplies and sustainable development. In this study, the significance of assessing the implications of climate change on water resources in megacities as an important component of the adaptation process is explored. The Mexico City Metropolitan Area (MCMA), one of the largest cities in the world, is presented as a case study. The downscaled outputs of the General Circulation Model GFDLCM2a for the A1B and B1 gas emissions scenarios for the period 2046–2081 and a statistical model were used to simulate the likely impacts of climate change in water resources and domestic water demand. The results showed that an increase in temperature and changes in precipitation patterns could increase household water demand for both scenarios, between 0.8% and 6.3% in the MCMA. The future projections also estimated increases of 150% and 200% in events with rainfall intensity of more than 60 mm d<sup>-1</sup> and 70 mm d<sup>-1</sup> respectively, drawing attention to the critical impacts these changes may have on flood events. Despite the uncertainty of models projections, future climate change scenarios have proven to be a flexible guide to identify vulnerabilities of water resources and support strategic adaptation planning. In order to increase their adaptive capacity and resilience to the effects of an uncertain climate change, megacities should consider implementing an integrated water resources management approach that creates opportunities through adequate policies, new technologies, flexible frameworks and innovative actions. </span></p>


Author(s):  
Sergio A. Molina Murillo

Most scenarios indicate that people in developing countries are more vulnerable and less capable of adapting to climate change. Since our public understanding of risk toward climate change in developing countries is limited, this article presents results from Costa Rica and Nicaragua, two countries which are socio-economically distinct, but which are expected to suffer similar extreme weather events. From October of 2008 until May 2010, a total of 1,047 respondents were surveyed in cities of both countries. The main results indicate that climate change is a widely known concept but other notions such as “carbon footprint” are foreign to most respondents. Despite the general concern with its negative consequences, respondents’ foremost concern is linked to their socioeconomic situation, and how it will be impacted by climate change in such aspects as poverty and social security. The results presented here contribute to advance national and international policies aiming to support mitigation or adaptation strategies in developing countries.


Author(s):  
Sarah Blodgett Bermeo

This chapter introduces the role of development as a self-interested policy pursued by industrialized states in an increasingly connected world. As such, it is differentiated from traditional geopolitical accounts of interactions between industrialized and developing states as well as from assertions that the increased focus on development stems from altruistic motivations. The concept of targeted development—pursuing development abroad when and where it serves the interests of the policymaking states—is introduced and defined. The issue areas covered in the book—foreign aid, trade agreements between industrialized and developing countries, and finance for climate change adaptation and mitigation—are introduced. The preference for bilateral, rather than multilateral, action is discussed.


Author(s):  
Daniel Krahl

The Paris Agreement has turned traditional approaches to global governance upside down, using a bottom-up approach that made it possible for emerging powers like China to agree to binding emissions targets to contain climate change. It thus marks a further step away from the old order centered on Western power, and at the same time it fits well into Chinese attempts to create a post-American order that rests on great power diplomacy within a multilateral framework of cooperation that privileges developing countries. The Paris Agreement allows China to leverage the internal fight against pollution and the restructuring and upgrading of its economy for international status. That the agreement has so far survived President Trump’s announcement of America’s departure suggests that it could yet serve as a blueprint for other, future arrangements for world order that would be able to integrate a risen China.


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