scholarly journals Weed Flora of Fayoum (Egypt), One of the Oldest Agricultural Regions in the World

2018 ◽  
Vol 36 (0) ◽  
Author(s):  
E.A. AL-SHERIF ◽  
M.A. ISMAEL ◽  
M.A. KARAM ◽  
H.H. ELFAYOUMI
Keyword(s):  
Life Form ◽  
Agricultural Land ◽  
Cynodon Dactylon ◽  
Similarity Index ◽  
Present Species ◽  
Species Number ◽  
The World ◽  
Weed Flora ◽  
Agricultural Regions ◽  
Alhagi Graecorum

ABSTRACT: Fayoum region is the most fertile agricultural land in Egypt and one of the oldest agricultural city in the world. The present study aimed to determine its weed flora composition and its distribution through different habitats. Results recorded 175 species of vascular plants belonging to 124 genera and 35 families distributed in eight habitats. The richest families were Poaceae, Asteraceae (Compositae) and Fabaceae (Leguminoseae), while genera with the highest number of species were Euphorbia, Amaranthus and Cyperus. Cynodon dactylon and Alhagi graecorum were the present species, recorded at all habitats. Old cultivated lands recorded the highest species number followed by orchard habitats, on the contrast road side and wasteland habitats recorded the lowest species numbers. Therophytes were the dominant life form, while Phanerophytes were the smallest group in this study, 5%. The highest Jaccard similarity index was recorded between healthy land and orchard habitats, which supported also by ward classification.

scholarly journals A Proposed Land Exchange Algorithm for Eliminating the External Plot Patchwork

Land ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 64
Author(s):  
Żanna Stręk ◽  
Przemysław Leń ◽  
Justyna Wójcik-Leń ◽  
Paweł Postek ◽  
Monika Mika ◽  
...  
Keyword(s):  
Spatial Structure ◽  
Rural Areas ◽  
Agricultural Land ◽  
Test Sample ◽  
Practical Application ◽  
Exchange Algorithm ◽  
The World ◽  
Negative Effect ◽  
Structure Improvement ◽  
Land Exchange

In many countries of the world, rural areas are characterized by a defective spatial structure of agricultural land. The most frequent defects are large fragmentation and distribution of farmland. The fragmentation of land has been an issue widely described by many authors throughout the world. The problem of the distribution of land owned by individual farmers is slightly different, since due to the complexity of the problem this issue was not widely explored in Poland (plot patchwork) or in other countries of Europe and the world. Land fragmentation and distribution of plots in rural areas has a negative effect on the profitability and efficiency of agricultural production. Land consolidation and exchange is an operation facilitating spatial structure improvement. The authors attempted to develop a universal land exchange algorithm for eliminating the external plot patchwork. As it turns out, so far no land exchange algorithm has been developed. Specific analyses were carried out in Puchaczów commune, county of Łęczna, Lublin voivodeship in the eastern part of Poland, covering an area of 6907.80 ha, split into 15,211 plots. The chequerboard arrays method was used. The publication presents the algorithm and its practical application using a test sample. A result of the studies is a proposal concerning the exchange of land between landowners in the villages of the commune of Puchaczów. Using the algorithm, the area of individual lands in the commune, after the exchange, will increase by 172.09 ha, which is 2.5% for the area of individual lands, and 1.9% for the commune.

Potential soil carbon sequestration of agricultural land around the world

2021 ◽  
Author(s):  
Sylvia Vetter ◽  
Michael Martin ◽  
Pete Smith
Keyword(s):  
Organic Carbon ◽  
Management Practices ◽  
Agricultural Land ◽  
Ghg Emissions ◽  
C Sequestration ◽  
Organic Soils ◽  
Soil C ◽  
Sequestration Potential ◽  
The World ◽  
Soil C Sequestration

<p>Reducing greenhouse gas (GHG) emissions in to the atmosphere to limit global warming is the big challenge of the coming decades. The focus lies on negative emission technologies to remove GHGs from the atmosphere from different sectors. Agriculture produces around a quarter of all the anthropogenic GHGs globally (including land use change and afforestation). Reducing these net emissions can be achieved through techniques that increase the soil organic carbon (SOC) stocks. These techniques include improved management practices in agriculture and grassland systems, which increase the organic carbon (C) input or reduce soil disturbances. The C sequestration potential differs among soils depending on climate, soil properties and management, with the highest potential for poor soils (SOC stock farthest from saturation).</p><p>Modelling can be used to estimate the technical potential to sequester C of agricultural land under different mitigation practices for the next decades under different climate scenarios. The ECOSSE model was developed to simulate soil C dynamics and GHG emissions in mineral and organic soils. A spatial version of the model (GlobalECOSSE) was adapted to simulate agricultural soils around the world to calculate the SOC change under changing management and climate.</p><p>Practices like different tillage management, crop rotations and residue incorporation showed regional differences and the importance of adapting mitigation practices under an increased changing climate. A fast adoption of practices that increase SOC has its own challenges, as the potential to sequester C is high until the soil reached a new C equilibrium. Therefore, the potential to use soil C sequestration to reduce overall GHG emissions is limited. The results showed a high potential to sequester C until 2050 but much lower rates in the second half of the century, highlighting the importance of using soil C sequestration in the coming decades to reach net zero by 2050.</p>

scholarly journals PROSPECTS FOR ORGANIC PRODUCTION MARKET DEVELOPMENT IN UKRAINE AND THE WORLD

2019 ◽  
pp. 38-48
Author(s):  
Olha KHAIETSKA
Keyword(s):  
Agricultural Land ◽  
Economic Benefits ◽  
Domestic Market ◽  
Organic Production ◽  
Basic Principles ◽  
Current State ◽  
Agricultural Enterprise ◽  
Organic Products ◽  
The World ◽  
Certified Organic

The article describes the current state of development of the world and domestic market of organic products, countries where there are the highest rates of development of certified production, countries with the highest consumption of organic products per capita and countries with the largest areas of organic agricultural land. The organic products market in Ukraine has been analyzed from the beginnings to the present state, indicating all stages of development and the problems that have arisen, as well as the basic laws on organic production, certified organic products, countries and companies operating on the domestic market. The area of land with organic status, the total number of certification bodies, the number of operators in this market in the regions of Ukraine is indicated. In the article a comparative analysis of Ukrainian organic production with world production is conducted, the countries-leaders for the areas occupied by organic production are specified. The list of certified in Ukraine types of organic products, which are consumed both on the domestic market and exported to different countries of the world, is determined. The article deals with the dynamics of the internal market of organic products for 2002-2017 years. The basic principles of organic agriculture, which focus on the preservation of the environment and natural resources, are presented and a mechanism for promoting organic production by agricultural enterprise. The benefits of this production are also described, including: health benefits, environmental, social and economic benefits. The urgent problems of the organic products market are determined, directions of state policy in the field of organic production are proposed, which will promote the development of organic production in Ukraine and the circulation of domestic organic products in the world.

scholarly journals The Impacts of Climate Change on Agricultural Production and Sustainable Agriculture of Smallholder Farmers in Vietnam

2021 ◽  
Vol 4 (2) ◽  
pp. 1100-1107
Author(s):  
Nguyen Van Phu
Keyword(s):  
Climate Change ◽  
Sustainable Agriculture ◽  
Supply Chains ◽  
Agricultural Land ◽  
Smallholder Farmers ◽  
Ghg Emissions ◽  
Human Beings ◽  
Negative Effects ◽  
Food Supply Chains ◽  
The World

Climate change is one of the greatest threats to human beings, and agriculture is one of the fields that is most negatively affected by climate change. Farmers around the world and global food supply chains are impacted by the more extreme weather phenomena and increased damage of diseases and pests caused by climate change. Today, almost all agricultural enterprises and farms consider climate change a serious long-term risk for their production. Agricultural land systems can produce significant greenhouse gases (GHGs) by the conversion of forests to crop- and animal lands, and also through the weak management of crops and livestock. Around the world, cultivation and cattle production accounts for 25% of global GHG emissions (Javeline, ‎2014). However, under suitable conditions, agriculture can create environmental conditions that can help minimize pollution and the negative effects of climate change including carbon absorption by green plants in forests, and fields for watershed protection and biodiversity conservation. Sustainable agriculture helps farmers to adapt, maintain, and improve productivity without applying harmful techniques. In turn, this allows farms to manage and mitigate climate-related risks in their supply chains. The Sustainable Agriculture Network (SAN) has found new ways to incorporate smart climate cultivation methods into all farming practices to help farms and enterprises carry out agriculture sustainably.

scholarly journals Comparison and display on small-scale maps and diagrams of the territorial resources of the largest countries of the World and their major cities

2020 ◽  
Vol 26 (1) ◽  
pp. 141-157
Author(s):  
Olga Markova ◽  
Valentina Maslennikova
Keyword(s):  
Sustainable Development ◽  
Agricultural Land ◽  
Arable Land ◽  
The State ◽  
Small Scale ◽  
World Heritage Sites ◽  
Heritage Sites ◽  
Area Efficiency ◽  
The World ◽  
Per Capita

The largest countries of the world are inevitably involved in various global processes, both natural and socio-economic. These countries have common features and characteristic differences in the state of their territorial resources; the study of these characteristics is of interest for the global prospects of sustainable development. A large territory provides a variety of natural conditions and resources for the country; however, not in all countries it is possible to effectively use them in the economy throughout the all country. An analysis of their territorial resources was carried out for the six largest countries of the world according to the following parameters: area, efficiency, environmental load on the territory of the country, number, density, forecast of population growth or decline for 2050, main agricultural land (arable land, pastures, the provision of the population, degradation and pollution of the soils), forest resources (including security per capita, share in the area of countries), fresh water resources (including per capita provision and availability), greenhouse gas emissions, including per capita, the proportion of mammals endangered, proportion of areas of preserved ecosystems. The data obtained was displayed on the maps; a common legend is built for them in tabular form. A number of other parameters of the state of territorial resources and the environment were also studied. In the process of research, the most important cities of these countries were also studied and diagrams showing their similarities and differences in a number of indicators were constructed: area, population and population density, time of foundation, climatic and landscape parameters, the presence of UNESCO World Heritage Sites, high-rise construction parameters. The developed methodology is effective for assessing a variety of data on territorial resources that can be used to build models of sustainable development of the largest countries and regions of the Earth.

scholarly journals Prospects of development of sprinkling machine

2020 ◽  
pp. 50-55
Author(s):  
Sergey Mudarisovich Bakirov
Keyword(s):  
Russian Federation ◽  
Drip Irrigation ◽  
Agricultural Land ◽  
Land Reclamation ◽  
Global Changes ◽  
Current Development ◽  
Agricultural Producers ◽  
Climatic Zones ◽  
The Russian Federation ◽  
Agricultural Regions

The article provides an analysis of the current development of agricultural land reclamation. Studies of global changes in climatic zones by the coefficient of moisture are presented. It was established that the number of dry and very dry lands in the Russian Federation grew by an average of 14 %. An analysis of increasing interest in sprinkler technology and its comparison with drip irrigation was carried out. The data of regional measures to support agricultural producers and producers when introducing sprinkling equipment are presented. The need for irrigation equipment for agricultural regions until 2024 is calculated.

scholarly journals The Comparison of Electrodialysis and Nanofiltration in Nitrate Removal from Groundwater

2021 ◽  
Vol 6 (1) ◽  
pp. 17-30
Author(s):  
J Touir ◽  
S Kitanou ◽  
M Zait ◽  
S Belhamidi ◽  
M Belfaquir ◽  
...  
Keyword(s):  
Produced Water ◽  
Nitrate Removal ◽  
World Health ◽  
Quality Of Water ◽  
Physico Chemical ◽  
Major Interest ◽  
The World ◽  
Health Organization ◽  
Agricultural Regions

Nitrate groundwater contamination is of major interest all over the world. This problem arises in agricultural regions across Morocco. An excess amount of nitrate causes a serious problem in urban water networks and human health. Because of these health risks, considerable attention has been paid to find effective treatment processes to reduce nitrate concentrations to safe levels. The World Health Organization has set an acceptable level for nitrate in drinking water at 50 mg/L. The aim of this study is to reduce the nitrate concentration from groundwater using two membrane processes: Electrodialysis (ED) and Nanofiltration (NF). Efficiencies of these two technologies are compared in respect to nitrate ions removal, cost process and final quality of water. The results of technologies show that, for electrodialysis standards level can be achieved for a demineralization rate of 15% and the physico-chemical quality of the produced water is satisfactory. For nanofiltration we obtain a nitrate removal of 90% but the produced water is very de-mineralized and must be remineralized.

Agricultural Environments

2019 ◽  
pp. 5-26
Author(s):  
Nicola P. Randall ◽  
Barbara Smith
Keyword(s):  
Historical Development ◽  
Agricultural Land ◽  
Production Systems ◽  
Agricultural Systems ◽  
The World ◽  
Global Agriculture ◽  
The Difference ◽  
Managed Ecosystems

This chapter outlines the origin and historical development of global agriculture. Agricultural systems around the world are extremely diverse, but all involve the management of land for the production of food and other commodities. Agroecosystems encompass a wide variety of production systems, both within and between different regions, and different classifications are used to order these. Characteristics and classifications of some major types of contemporary agricultural systems are introduced. The difference between agricultural and natural (or alternatively managed) ecosystems and farmed versus unfarmed habitats on agricultural land is explored, and examples of each are provided. Some of the impacts of agriculture on wider ecosystems are introduced.

DISCOURSE, LANGUAGE (LANGUE), LANGUAGE ACTIVITY (LANGAGE)

METOD ◽  
2020 ◽  
pp. 212-242
Author(s):  
Suren Zolyan
Keyword(s):  
Real Time ◽  
Life Form ◽  
Abstract Object ◽  
New Approach ◽  
Speech Activity ◽  
The World ◽  
The Relationship

We suggest a new approach to discourse, according to which it is analyzed as a research construct that emerges when language is described as a process in functioning and language structures considered in relation to text / statement. At the same time, the conditions due to which these correlations are possible, and these relations themselves are explicated. These conditions and procedures can be designated as a discourse. As relationships or functions, they combine various aspects of speech activity. Since these aspects are not material entities, but abstractions, the relations between them can be represented in the form of such an abstract object as a semiotic borderline, defined by analogy with the mathematical one - as a set of lines whose points belong to both adjacent sets. But this analogy can also be interpreted biologically - then this borderline appears as a membrane, and the relations between different domains become lines not only of the connection but also of the interpenetration of the elements and rules of one area into another. An observer, being located on this border, can be simultaneously transferred both to language, to the world, and to speech, he / she is able to detect domains connected through this border. So in the process of description, it becomes possible to represent the discourse in the form of an observable object and substitute relations (discourse) with its constituents (arguments) - language, world, speech, text, life form). Hence, such definitions as «text in the context of its actualization», «language in real time», «speech immersed in life», «person in language», may appear, where the discourse is identified through the members of the relationship that it connects.

Z. K. Sentongo and the Indian Question in East Africa

1997 ◽  
Vol 24 ◽  
pp. 309-336 ◽  
Author(s):  
Michael Twaddle
Keyword(s):  
World War I ◽  
East Africa ◽  
British Empire ◽  
Residential Segregation ◽  
Agricultural Land ◽  
Test Case ◽  
British Colonialism ◽  
World War ◽  
Public Meetings ◽  
The World

East Africa is really what one may call a ‘test case’ for Great Britain. If Indians cannot be treated as equals in a vacant or almost vacant part of the world where they were the first in occupation—a part of the world which is on the equator—it seems that the so-called freedom of the British Empire is a sham and a delusion.The Indian question in East Africa during the early 1920s can hardly be said to have been neglected by subsequent scholars. There is an abundant literature on it and the purpose here is not simply to run over the ground yet again, resurrecting past passions on the British, white settler and Indian sides. Instead, more will be said about the African side, especially the expatriate educated African side, during the controversy in Kenya immediately after World War I, when residential segregation, legislative rights, access to agricultural land, and future immigration by Indians were hotly debated in parliament, press, private letters, and at public meetings. For not only were educated and expatriate Africans in postwar Kenya by no means wholly “dumb,” as one eminent historian of the British Empire has since suggested, but their comments in newspaper articles at the time can be seen in retrospect to have had a seminal importance in articulating both contemporary fears and subsequent “imagined communities,” to employ Benedict Anderson's felicitous phrase—those nationalisms which were to have such controversial significance during the struggle for independence from British colonialism in Uganda as well as Kenya during the middle years of this century.

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