scholarly journals MORPHOLOGICAL CHANGES INDUCED BY THE IRRIGATION SYSTEMS AND SUSTAINABLE LAND USE IN BĂILEȘTI PLAIN

2020 ◽  
Vol 14 (1) ◽  
Author(s):  
Lavinia Crișu ◽  
Andreea Gabriela Zamfir ◽  
Sandu Boengiu

Current climate and practicing a modern and sustainable agriculture imply the need to rehabilitate the entire network of irrigation systems found in Băilești Plain. There are 9 irrigation systems with 1.015 km of canals, spread over an area of 194.648 ha. These large constructions, which cross the Danube meadow and terraces, induced morphological changes due to the canals built and the slopes resulted. By investigating the types of canals built and their morphometric values, we were able to estimate the quantity of relocated materials, 53.918.820 m3. Failure to fully utilize the irrigation systems, deforestation and defective use of agricultural land have led to their degradation and amplification of geomorphological processes, especially on sandy surfaces. A complete analysis of the irrigation systems regarding their functionality, the existence of the Organizations for Water Users and the stage of rehabilitation contracts was carried out. The National Plan for the Rehabilitation of the Main Irrigation Infrastructure in Romania, aims at restoring the initial parameters for the functioning of the stations and canals by 2020. The purpose is to increase the irrigated areas, which nowadays are kept at a low value (50.000 ha) which fluctuates year by year.

Author(s):  
A.A. Buber ◽  
E.L. Ratkovich ◽  
Y.A. Homutov

В статье приведены систематизированные данные по оросительным и обводнительным системам в бассейне р. Кубани, необходимые для разработки научно-методического обоснования и определения перспектив использования водных ресурсов бассейна р. Кубани, а также научно обоснованных рекомендаций по повышению эффективности их использования при мелиорации земель сельскохозяйственного назначения на основе водного баланса территории. Бассейн р. Кубани включает 17 оросительно-обводнительных систем, основными водопользователями являются оросительные системы Карачаево-Черкесской республики, Ставропольского края, Республики Адыгеи и Краснодарского края. Орошаемые земли в Республике Карачаево-Черкессии представляют в основном тепличные хозяйства, овощные севообороты, общая площадь орошаемых сельхозугодий 19,8 тыс. га. В Ставропольском крае овощные и кормовые севообороты, инженерные оросительные системы водохозяйственного комплекса БСК (Большой ставропольский канал). В Республике Адыгея кроме овощных, кормовых севооборотов имеются и рисовые, дефицита пресных подземных и поверхностных вод регион не испытывает, однако, в сельской местности в летнее время наблюдаются перебои в хозяйственно-питьевом водоснабжении населения. Общая площадь орошаемых сельхозугодий 24,952 тыс. га, площадь осушаемых земель 2,368 тыс. га. В Краснодарском крае в бассейне реки Кубани числятся орошаемыми 234,4 тыс. га рисовых систем и 152,0 тыс. га нерисовых севооборотов. Общая площадь осушенных сельхозугодий 24,5 тыс. га.The article presents systematized data on irrigation and watering systems in the Kuban river basin, which are necessary for scientific and methodological basis developing and determining the prospects for using water resources in the Kuban river basin, as well as scientifically based recommendations for improving their use efficiency in agricultural land reclamation based on the territorys water balance. The Kuban river basin includes 17 irrigation and watering systems, the main water users are the irrigation systems of the Karachay-Cherkess Republic, Stavropol territory, the Republic of Adygea and Krasnodar territory. Irrigated lands in the Karachay-Cherkessia Republic are mainly greenhouses and vegetable crop rotations the total area of irrigated farmland is 19.8 thousand hectares. In the Stavropol territory vegetable and fodder crop rotations, engineering irrigation systems of the BSC water management complex (the Big Stavropol Canal). In the Republic of Adygea in addition to vegetable and fodder crop rotations there are also rice, there is no fresh groundwater and surface water deficit in the region, however, in the countryside in the summer time, there are disruptions in drinking water supply of the population. Total irrigated farmland area is 24.952 thousand hectares, drained land area is 2.368 thousand hectares. In the Krasnodar region, Kuban river basin, there are 234.4 thousand hectares of rice systems and 152.0 thousand hectares of non-rice crop rotations listed as irrigated. The total area of drained farmland is 24.5 thousand hectares.


2020 ◽  
Vol 12 (5) ◽  
pp. 1835
Author(s):  
Anja Schmitz ◽  
Bettina Tonn ◽  
Ann-Kathrin Schöppner ◽  
Johannes Isselstein

Engaging farmers as citizen scientists may be a cost-efficient way to answering applied research questions aimed at more sustainable land use. We used a citizen science approach with German horse farmers with a dual goal. Firstly, we tested the practicability of this approach for answering ‘real-life’ questions in variable agricultural land-use systems. Secondly, we were interested in the knowledge it can provide about locomotion of horses on pasture and the management factors influencing this behaviour. Out of 165 volunteers, we selected 40 participants to record locomotion of two horses on pasture and provide information on their horse husbandry and pasture management. We obtained complete records for three recording days per horse from 28 participants, resulting in a dataset on more individual horses than any other Global Positioning System study published in the last 30 years. Time spent walking was greatest for horses kept in box-stall stables, and walking distance decreased with increasing grazing time. This suggests that restrictions in pasture access may increase stress on grass swards through running and trampling, severely challenging sustainable pasture management. Our study, involving simple technology, clear instructions and rigorous quality assessment, demonstrates the potential of citizen science actively involving land managers in agricultural research.


2021 ◽  
Vol 12 (3) ◽  
pp. 642
Author(s):  
Jacek RÓŻKOWSKI ◽  
Mariusz RZĘTAŁA

The functioning of Uzbekistan’s economy is closely linked to the water resources of its huge cross-border rivers: the Amu Darya and the Syr Darya, as well as to the groundwater present within their basins. Both natural lakes and artificial reservoirs (e.g. the Aydar-Arnasay system of lakes, the Kayrakkum Reservoir, the Chardarya Reservoir) are present there, which retain significant amounts of water, and large canals with lengths of up to several hundred kilometres which involve complex hydraulic structures are used for irrigation purposes. All these are components of a water management system which needs optimisation; as much as 80% of agricultural land is irrigated, with 70% of the water being lost due to inefficient irrigation systems. The consequence of this allocation of river flows and the overuse of water in irrigation systems has been the disappearance of the Aral Sea (1960 year – 68,900 km2, 2017 year – 8,600 km2) and the inflow of water into the Sarygamysh Lake as well as the reduction of Uzbekistan’s groundwater resources by about 40%. The intensive development of irrigated agriculture is associated with changes in surface and groundwater quality caused, inter alia, by the increased use of chemicals in agriculture and the discharge of collector-drainage waters into river systems as well as their reuse. The extent of environmental degradation in some areas (especially in the Aral Sea region) is unique on a global scale. The origins of Uzbekistan’s other hydrological tourist attractions are related to attempts to ensure the availability of water for both human consumption and industrial use under conditions of water scarcity in the country’s arid and semi-arid climates. Not just the spectacular watercourses and water bodies present there (e.g. rivers, lakes, canals), but also small water retention facilities and minor infrastructure elements (e.g. wells, springs and retention basins, canals, ditches and flow control structures) are of potential tourist importance.


2020 ◽  
pp. 251484862093471
Author(s):  
Laura Imburgia ◽  
Henny Osbahr ◽  
Sarah Cardey ◽  
Janet Momsen

Genuine inclusive participation in the self-governance of communal irrigation systems remains a challenge. This article analyses the mechanisms of participation in irrigation water users’ associations (WUAs) with focus on women as leaders of those organizations by drawing on cases from a comparative, multicase mixed-method study in Ethiopia and Argentina. After having being a topic for decades in gender and development debates, in many irrigated areas of the world, WUAs continue to be male dominated at all levels, especially in influential positions. Findings in this article suggest that despite large socio-economic and cultural differences, the current water management systems in both research locations reinforce problems of unequal gender participation; women have more obstacles and constraints in establishing equal access in membership, participation, and decision making in irrigation management. The lack of inclusive participation and the low representation of women in leadership roles lead to WUAs being poorly rooted in their community of users. Incomplete social rootedness of WUAs jeopardizes their effectiveness and equality in water management and, as a result, affects long-term sustainability. Through analysis of empirical data of communal small-scale irrigation systems in both countries, the article discusses who participates, how and why they participate, and the reasons for low numbers of women in leadership roles within the WUAs. Finally, the article reflects on possible enabling conditions that could foster inclusive participation, increase the quantity and capacity of women in management and leadership roles, and the benefits this may bring to sustainable irrigation systems.


2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Roberto Spina ◽  
Emiliano Tramontana

Abstract The uncontrolled expansion of urban areas is one of the main factors that reduce the liveability of cities. In recent years, to contrast urban sprawl, several nations have promoted policies aimed at developing urban green spaces. The importance of green oases within cities had already been highlighted, in 1977, by the architect Christopher Alexander who had developed a series of patterns including ‘City Country Fingers’ claiming that city development should consider the prolongation of country land in to the urban area. In several cities, especially in Japan, it is possible to recognize the imprint of urban development based on country fingers. This term refers to extensive urban intersections of agricultural land or wooded hills which, from the peripheral areas, penetrate the city. Inside them, there are urban windows, called city fingers, whose development direction is opposite to those of the country fingers. To recognize and analyze, in an automated way, these particular structures, a Python-based application was created. Starting from the original high-resolution image of Google Earth, a complete analysis was performed, labeling and delimiting urban and vegetational areas and extrapolating the main geometric parameters of the country and city fingers. The finalization of the results obtained was carried out through a classification model whose criteria were based on Alexander’s pattern. Thanks to this classification scheme, the distinction between Active Green Areas (country fingers) and Passive Green Areas (gardens and public parks) have been revealed for the analyzed cities. The tests performed showed almost ideal conditions for the city of Kamakura and a limited match for the urban area of Acireale. The proposed method is suitable for fields of application that require a qualitative and quantitative determination of the vegetation cover present within the city, an essential condition for correct territorial planning.


Author(s):  
N.O. Naumenko ◽  
A.A. Buber

В работе рассмотрены основные водопользователи бассейна реки Кубань - оросительные системы Краснодарского края. Приведена динамика использования водных ресурсов поверхностных и подземных вод за 1999 - 2018 гг. по следующим показателям: забор воды из источников, в том числе из поверхностных и подземных, их использование, водоотведение и безвозвратное водопотребление относительно природных водных объектов. Анализ водохозяйственной обстановки бассейна р. Кубань выявил ряд проблем, связанных с рациональным использованием водных ресурсов. Для устранения негативных последствий, возникших, в том числе, вследствие антропогенной деятельности человека, на последующих этапах работы будут предложены мероприятия по уменьшению дефицита воды на рисовых оросительных системах в маловодные периоды.The article considers the Kuban river basin main water users - Krasnodar region irrigation systems. Considered the surface and groundwater water resources use dynamics from 1999 to 2018 for the following indicators: water intake from sources, including surface and underground, their use, drainage and irrevocable water consumption relative to natural water objects. Analysis of the water management situation in the Kuban river basin revealed a number of problems related to the rational water resources use. In order to eliminate the negative consequences that have arisen, including as a result of human anthropogenic activity, measures to reduce the water deficit in rice irrigation systems in low-water periods will be proposed at the next stages of the work.


Land ◽  
2018 ◽  
Vol 7 (4) ◽  
pp. 132 ◽  
Author(s):  
Majaliwa Mwanjalolo ◽  
Barasa Bernard ◽  
Mukwaya Paul ◽  
Wanyama Joshua ◽  
Kutegeka Sophie ◽  
...  

Sustainable land use systems planning and management requires a wider understanding of the spatial extent and detailed human-ecosystem interactions astride any landscape. This study assessed the extent of historical, current, and future land use systems in Uganda. The specific objectives were to (i) characterize and assess the extent of historical and current land use systems, and (ii) project future lan use systems. The land use systems were defined and classified using spatially explicit land use/cover layers for the years 1990 and 2015, while the future prediction (for the year 2040) was determined using land use systems datasets for both years through a Markov chain model. This study reveals a total of 29 classes of land use systems that can be broadly categorized as follows: three of the land use systems are agricultural, five are under bushland, four under forest, five under grasslands, two under impediments, three under wetlands, five under woodland, one under open water and urban settlement respectively. The highest gains in the land amongst the land use systems were experienced in subsistence agricultural land and grasslands protected, while the highest losses were seen in grasslands unprotected and woodland/forest with low livestock densities. By 2040, subsistence agricultural land is likely to increase by about 1% while tropical high forest with livestock activities is expected to decrease by 0.2%, and woodland/forest unprotected by 0.07%. High demand for agricultural and settlement land are mainly responsible for land use systems patchiness. This study envisages more land degradation and disasters such as landslides, floods, droughts, and so forth to occur in the country, causing more deaths and loss of property, if the rate at which land use systems are expanding is not closely monitored and regulated in the near future.


2005 ◽  
Vol 20 (3) ◽  
pp. 136-147 ◽  
Author(s):  
Nevin Akpinar ◽  
Ilkden Talay ◽  
Sema Gun

AbstractEven in developing countries that are faced with ecological and socio-economic problems, agricultural areas are constrained by land-use laws to be developed in particular ways. This being the case, the major issues in these areas are a better quality of life and sustainable use of the limited resources. This necessitates planning for sustainable development and evaluating various qualitative and quantitative data in a single framework. Multicriteria or multipurpose decision analysis methods are appropriate for this purpose. Using these methods, physical, economical and social data, as well as planning goals, can be combined and evaluated in the context of sustainable development. These multicriteria methods have been documented widely in a variety of problem areas, but two multicriteria methods, namely AHP (analytic hierarchy process) and ELECTRE II (elimination and choice translating reality), have not been used extensively in agricultural land-use decisions in developing countries. However, in situations where decision-making criteria are non-commensurable, non-comparable or non-countable, and when it is necessary to evaluate the criteria together, as in agricultural land-use decisions, AHP and ELECTRE II methods are warranted. This study reviews these methods briefly and suggests their potential application in the agricultural land-use decision process in a developing country. For this purpose, these methods were sampled in Ziyaret Stream Basin in Adiyaman, which is part of the Güneydoğu Anadolu Projesi (GAP) (South-eastern Anatolian Project) in the Republic of Turkey. The area could be characterized by its rural and agricultural features, although it is under the pressure of Adiyaman urban development. This study shows that both AHP and ELECTRE II methods can be applied successfully for the determination of agricultural land-use priorities, which are an essential part of the quality of life and of sustainable land-use studies.


2013 ◽  
Vol 14 (3) ◽  
pp. 414-420 ◽  
Author(s):  
Marta García-Mollá ◽  
Mar Ortega-Reig ◽  
Carles Sanchis-Ibor ◽  
Llorenç Avellà-Reus

The modernization of the irrigation systems has been the main strategy followed by the regional administration of the Valencia Region to cope with the structural water deficit of the region, which has been particularly severe during the last three decades. These policies have been oriented to the substitution of gravity irrigation systems for drip technology. The technological change has involved an important investment effort, developed by different public administrations and also the farmers and water users' associations (WUAs). This transformation, has also involved a change in the structure of costs of the WUAs. This paper analyzes the changes in costs and tariffs of irrigation after the important investments made in the modernization of irrigation. The effects of subsidies on the percentage of the cost recovery in the services of water for irrigation are also considered. All of them have developed modernization projects in the recent years. It can be concluded that conflict between two objectives proposed by the Water Framework Directive may exist. On the one hand, significant reductions of water supply are observed; meanwhile, on the other hand, the cost recovery percentage diminishes significantly.


Biologia ◽  
2009 ◽  
Vol 64 (3) ◽  
Author(s):  
Sumbangan Baja ◽  
Muhamad Ramli ◽  
Syamsul Lias

AbstractSoil erosion by water is considered as one of the most significant forms of land degradation that affects sustained productivity of agricultural land use and water quality. It is influenced by a considerable number of factors (including climate, soil, topography, land use and types of land management), so that the information on the spatial distribution of soil erosion rate and its related effects can be effectively employed as a baseline data for land use development and water protection. The principal aim of this study is three-fold: (i) to map existing land use; (ii) to assess and map the spatial distribution of average annual rate of soil losses in the study area; (iii) to evaluate spatial matching between existing and proposed land use including a distance analysis from the water body (the Bili-Bili Dam). An analytical procedures used, respectively, include supervised classification of satellite imagery, application of RUSLE (Revised USLE), and overlay analysis in a raster GIS environment, utilising available information in the region covering some parts of Jeneberang catchment, South Sulawesi, Indonesia. The results suggest that the outputs of this study can be used for the identification of land units on a cell-basis with different land use types, rate of soil loss, inconsistency between proposed and planned land use, as well as the threat of land degradation to the main river and the dam. The analytical procedures developed in this research may be useful in other areas, particularly in the studies related to the assessment and mapping of land use and erosion for the importance of sustainable land use at a relatively large area.


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