Journal of Water and Land Development最新文献_第6页

Agronomic evaluation of irrigation water on the Southern Buh and Kamianska irrigation systems 南布赫和Kamianska灌溉系统灌溉用水的农艺评价

Journal of Water and Land Development Pub Date : 2023-11-06 DOI: 10.24425/jwld.2022.141557

{"title":"Agronomic evaluation of irrigation water on the Southern Buh and Kamianska irrigation systems","authors":"","doi":"10.24425/jwld.2022.141557","DOIUrl":"https://doi.org/10.24425/jwld.2022.141557","url":null,"abstract":": The aim of the research was to study the temporal and spatial dynamics of a set of agronomic criteria for irrigation water in the process of transporting it from the Southern Buh River intake site to the lands of the Southern Buh and Kamianska irrigation systems situated in southern Ukraine. Six stationary research sites for monitoring the quality of irrigation water were established along the route of irrigation water transportation. Determination of agronomic criteria for irrigation water quality was carried out in two terms: at the beginning of the irrigation season, in May, and at the end, in September. The content of cations of sodium, magnesium, calcium, and anions of chlorine, sulphates, carbonates, and bicarbonates was determined. In the field, the pH and electrical conductivity of water, the total salt content, and the total amount of dissolved solids were determined. It is determined that waters have an average level of danger from the point of view of salinisation of soils. This fact leads to a decrease in yield of sensitive to salinity crops (corn, alfalfa and most vegetables). The high content of sodium cations along with the low content of calcium and magnesium cations indicates the danger of degradation of the physical properties of the southern chernozems and the need to use the meliorants containing calcium. There is a high probability of toxic effects on crops caused by sodium cations. At the same time, it is stated that there is no negative effect of chlorine anions on plants.","PeriodicalId":39224,"journal":{"name":"Journal of Water and Land Development","volume":"41 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135635272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The importance of volume changes in the determination of soil water retention curves on the East Slovakian Lowland 体积变化在测定东斯洛伐克低地土壤保水曲线中的重要性

Journal of Water and Land Development Pub Date : 2023-11-06 DOI: 10.24425/jwld.2020.133045

{"title":"The importance of volume changes in the determination of soil water retention curves on the East Slovakian Lowland","authors":"","doi":"10.24425/jwld.2020.133045","DOIUrl":"https://doi.org/10.24425/jwld.2020.133045","url":null,"abstract":"Estimation and application of water retention curves in heavy soils have own specifics. The reason for these specific properties is the composition of the high clay texture. This is manifested by volume changes of soil depending on moisture. Up to 40% change in the volume compared to the saturated state was recorded in the conditions of the East Slovakian Low-land. The results described in this work are based on research work carried out in the East Slovakian Lowland and represent an analysis of selected 42 samples out of a total of 250 samples in which laboratory measurements of soil water retention curves and volume changes were performed. Selected samples represent the localities Senné and Poľany. Volumetric changes were measured in a laboratory by measuring the dimensions of soil samples. Appropriate changes in the volume of soil samples should be measured when determining moisture retention curves. Neglecting this physical effect leads to a distorted determination of the water retention curves in heavy soils. In the laboratory measurement of water retention curves points, changes in the volume of the sample were measured in the range of 0.24–43.67% depending on the soil moisture potential during drainage. In the case of neglecting the effect of shrinkage during the drainage of samples, a certain error is occurring in the calculation of the volumetric moisture. The range of this error was 1–13% of volumetric moisture.","PeriodicalId":39224,"journal":{"name":"Journal of Water and Land Development","volume":"1982 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135635599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Hydrogeological monitoring of karst activity based on regime observations in the territory of karst lakes 基于状态观测的喀斯特活动水文地质监测

Journal of Water and Land Development Pub Date : 2023-11-06 DOI: 10.24425/jwld.2021.136156

{"title":"Hydrogeological monitoring of karst activity based on regime observations in the territory of karst lakes","authors":"","doi":"10.24425/jwld.2021.136156","DOIUrl":"https://doi.org/10.24425/jwld.2021.136156","url":null,"abstract":"This article shows that the most sensitive indicator of local and regional karst activity in territories of apparent karst processes is the behaviour of karst lakes. The authors propose a hydrogeological monitoring methodology for the karst process based on the phase-measuring geoelectric control method in the coastal zone of karst lakes. The geoelectric current control of hydrogeological changes in the medium at local levels uses a multi-frequency vertical electric sounding combined with a phase-measuring method of registering the geoelectric signal. These proven methods permit to distinguish variations of spatial parameters and the electric conductivity of several layers at a time. Moreover, they significantly increase the noise resistance and sensitivity of the measuring system. An adaptive algorithm function of the measuring complex for geoelectric monitoring of karst lakes’ coastal zones was developed to control the operation of facilities and data collection systems. Based on an example of a lake where karst processes are active, the key zones of hydrogeological control were identified depending on karst manifestations. The research confirmed the possibility of local and regional monitoring of the development and forecasting of destructive karst-suffosion processes based on hydrogeological regime observations of karst lakes.","PeriodicalId":39224,"journal":{"name":"Journal of Water and Land Development","volume":"562 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135635623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Environmental effects of using large rivers for irrigation in the Kazakhstan – Syr Darya case study 利用大河灌溉的环境影响在哈萨克斯坦-锡尔河案例研究

Journal of Water and Land Development Pub Date : 2023-11-06 DOI: 10.24425/jwld.2020.135039

{"title":"Environmental effects of using large rivers for irrigation in the Kazakhstan – Syr Darya case study","authors":"","doi":"10.24425/jwld.2020.135039","DOIUrl":"https://doi.org/10.24425/jwld.2020.135039","url":null,"abstract":"The issues discussed in the paper concern the assessment of changes in quantitative and qualitative indicators of water resources in the climatic conditions of the southern part of Kazakhstan. For this purpose, many years of systematic field observations and other continuous data obtained from the functioning measurement and observation stations operating within the Aral-Syrdarya Basin Inspection were used. On the basis of the obtained data, indicators were determined that characterize the quantity and quality of water supplied to the soil in the irrigation process, as well as the quantity and quality of water flowing out of the drainage systems, together with an evaluation of the effectiveness of irrigation and drainage systems. Soil salinity was assessed in five irrigated massifs with a total area of 332.55 thous. ha. For the same irrigated massifs, the annual amounts of water taken for irrigation, the amount of outflowing water and the assessment of the mineralization level were determined. Based on the developed results of field observations characterizing the hydrological and environmental situation of the lower section of the Syr Darya River in 1960–2015, the negative reaction coefficients were calculated for the local population, soil and vegetation for five of the irrigated massifs of the Kyzylorda region. The ecological situation of the habitat of soil and plants in the lower reaches of the Syr Darya River in all irrigation areas deteriorates on a time scale, since as a result of the reclamation of agricultural lands, intensive secondary soil salinization occurs and the formation of infiltration runoff with high mineralization, contributing to the violation of the harmonization of the relationship between nature and man.","PeriodicalId":39224,"journal":{"name":"Journal of Water and Land Development","volume":"2016 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135635776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Development of the flood vulnerability index using a multi-element approach 基于多要素方法的洪水脆弱性指数研究

Journal of Water and Land Development Pub Date : 2023-11-06 DOI: 10.24425/jwld.2021.138181

{"title":"Development of the flood vulnerability index using a multi-element approach","authors":"","doi":"10.24425/jwld.2021.138181","DOIUrl":"https://doi.org/10.24425/jwld.2021.138181","url":null,"abstract":": The problem of flood vulnerability has been reviewed in several studies, however, the reviews focused exclusively either on the social or on the physical component of the problem. The components of flood vulnerability are interdependent and each of them makes an equally important contribution to the flood vulnerability index. This study identifies and evaluates the integrated flood vulnerability index ( FVI ) of an area by considering its multiple components (social, economic, and environmental). The Analytic Hierarchy Process (AHP) method was applied to evaluate the weight of each component. The evaluation was based on the judgements of experts working at local government policy-making agencies. The input data for the AHP were acquired through a questionnaire survey. Eleven indicators that delivered significant results were then selected. The FVI results show high flood vulnerability at the local scale. The FVI provides the basis for the identification of villages with high vulnerability indices. The results provide essential information about pluvial flood vulnerability at the local scale, about the area with the highest vulnerability index, and the most vulnerable villages. The results also show that the components that have a significant impact on the flood vulnerability index include environmental components (43.4%), social components (28.5%), and physical components (28.1%).","PeriodicalId":39224,"journal":{"name":"Journal of Water and Land Development","volume":"1988 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135635831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Comparison of lateral spillway and morning glory spillway performance in flood control 横向泄洪道与牵牛花泄洪道防洪性能比较

Journal of Water and Land Development Pub Date : 2023-11-06 DOI: 10.24425/jwld.2022.140796

{"title":"Comparison of lateral spillway and morning glory spillway performance in flood control","authors":"","doi":"10.24425/jwld.2022.140796","DOIUrl":"https://doi.org/10.24425/jwld.2022.140796","url":null,"abstract":": With the emergence of climate change and the increasing human intervention in the global climate, floods have affected different parts of the world. In practice, floods are the most terrible natural disaster in the world, both in terms of casualties and financial losses. To reduce the adverse effects of this phenomenon, it is necessary to use structural and non-structural methods of flood risk management. One of the structural methods of flood control is to allocate a certain part of reservoir dams to flood control. In order to safely exit the flood from the dam reservoir, the spillway structure should be used. One of the important issues in designing a spillway structure is reducing its construction costs. In order to safely exit the flood with a specified return period from the dam reservoir, as the length of the spillway decreases, the height of the water blade on the spillway increases. In other words, decreasing the spillway length increases the height of the dam and its construction and design costs. In this study, the design and comparison of the performance of two glory spillways and lateral spillways have been considered. The results showed that for a given length for the drain edge of both types of spillways, the height of the water blade on the glory spillway is always higher than the lateral spillway. For example, when a 10,000-year-old flood occurs, it is about 8 m.","PeriodicalId":39224,"journal":{"name":"Journal of Water and Land Development","volume":"593 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135635856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

EUSS – computer model to evaluate emission uniformity for sloping surfaces under drip irrigation system 评价滴灌系统下坡地排放均匀性的计算机模型

Journal of Water and Land Development Pub Date : 2023-11-06 DOI: 10.24425/jwld.2020.135314

引用次数: 0

A comparative assessment of meteorological drought in the Tafna basin, Northwestern Algeria 阿尔及利亚西北部塔夫纳盆地气象干旱的比较评估

Journal of Water and Land Development Pub Date : 2023-11-06 DOI: 10.24425/jwld.2021.139018

{"title":"A comparative assessment of meteorological drought in the Tafna basin, Northwestern Algeria","authors":"","doi":"10.24425/jwld.2021.139018","DOIUrl":"https://doi.org/10.24425/jwld.2021.139018","url":null,"abstract":": The drought ranked first in terms the natural hazard characteristics and impacts followed by tropical cyclones, regional floods, earthquakes, and volcanoes. Drought monitoring is an important aspect of drought risk management and the assessment of drought is usually done through using various drought indices. The western region in Algeria is the most affected by the drought since the middle of the 70s.The current research focuses on the analysis and comparison of four meteorological drought indices (standardized precipitation index – SPI , percent of normal index – PN , decile index – DI , and rainfall anomaly index – RAI ) in the Tafna basin for different time scales (annual, seasonal, and monthly) during 1979–2011. The results showed that the SPI and DI have similar frequencies for dry and wet categories. The RAI and PN were able to detect more drought categories. Meanwhile, all indices have strong positive correlations between each other, especially with Spearman correlation tests (0.99; 1.0), the meteorological drought indices almost showed consistent and similar results in the study area. It was determined in 1982 as the driest year and 2008 as the wettest year in the period of the study. The analysis of the trend was based on the test of Mann– Kendall (MK), a positive trend of the indices were detected on a monthly scale, this increasing of indices trend represent the increasing of the wet categories which explains the increasing trend of the rainfall in the last 2000s. These results overview of the understanding of drought trends in the region is crucial for making strategies and assist in decision making for water resources management and reducing vulnerability to drought.","PeriodicalId":39224,"journal":{"name":"Journal of Water and Land Development","volume":"2008 21","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135636275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Problem of water scarcity in agriculture – case study of land improvement in Kujawsko-Pomorskie Voivodship 农业用水短缺问题——以库贾维斯科-波莫尔斯基省土地改良为例

Journal of Water and Land Development Pub Date : 2023-11-06 DOI: 10.24425/jwld.2021.139010

{"title":"Problem of water scarcity in agriculture – case study of land improvement in Kujawsko-Pomorskie Voivodship","authors":"","doi":"10.24425/jwld.2021.139010","DOIUrl":"https://doi.org/10.24425/jwld.2021.139010","url":null,"abstract":": Today’s agriculture is facing a range of challenges, the most important of which is the adjustment to the changing climate. In this context, water management is particularly vital. Droughts in Poland are becoming more and more frequent. That fact adds to the significance of irrigation and drainage systems. This paper is an attempt at diagnosing the condition of (in 2016) and changes in (over the period of 2006–2016) irrigation and drainage systems in the Kujawsko-Pomorskie Voivodship (analysed by communes, until 2016 – according to Local Administrative Units – LAU level 2). The multidirectional analysis involves a comprehensive description of ameliorated lands, including the allocation of the EU funds dedicated for the support of flood protection and land improvement ventures. It has been demonstrated that the present condition of land improvement does not reflect the needs of the agriculture in the studied area and that the changes implemented on the ongoing basis fail to make the situation better. In 2016, slightly over 40% of agricultural acreage was ameliorated, while the level at which land improvement needs would be satisfied approximated 70%. In over 1/5 of the ameliorated area, facilities needed reconstruction or modernisation. Drainage systems were in the majority, which indicates that the current needs, i.e. water scarcity, are not addressed.","PeriodicalId":39224,"journal":{"name":"Journal of Water and Land Development","volume":"2008 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135636291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Geospatial potential and environmental changes: Case study of complex nature of the Altai Geopark 地理空间潜力与环境变化——以阿尔泰地质公园复杂性质为例

Journal of Water and Land Development Pub Date : 2023-11-06 DOI: 10.24425/jwld.2021.137687

{"title":"Geospatial potential and environmental changes: Case study of complex nature of the Altai Geopark","authors":"","doi":"10.24425/jwld.2021.137687","DOIUrl":"https://doi.org/10.24425/jwld.2021.137687","url":null,"abstract":"The geopark Altai has a set of unique geological, geographical, and archaeological objects. Its basis is made by geological space with a specific relief that plays an important role, and on certain sites, it takes the first place in comparison with other types of objects. The peculiar feature of the geopark Altai is that in its territory there is a landscape connection among archaeological, geological, and geographical objects, which at certain sites is penetrated by mental and cultural fluids causing a deep interest of tourists in this territory. In this regard, the authors consider the relief as an object of cognitive, educational, and practical activities of the geopark Altai. Therefore, the following tasks were set up: to find a site for the realization of several types of activities by the geopark and to develop a theoretical scientific and a popular science base for their implementation. As a result of the work done, the authors allocated the site within the boundaries of the geopark Altai where modern dynamics of the relief are characterized by the maximum speed. On this site, it is possible to recreate the processes that created the relief in the geological past and to study these processes now. The specifics of weather and climatic conditions in this region made its relief very important for economic activity of the population inhabiting this territory. Therefore, as of today, the study of the condition of certain surface sites and forecasting the development of relief-forming processes is an important part of any activity on the described territory. The long-term geological, ecological, geographical, and archaeological research conducted by the authors on the territory of the Altai Republic served as materials for this study. The geological materials were collected by the methods adopted in this field of research (field survey of structures and rocks, cartographic methods, analysis of general geological data, and others). The ecological and geographical results were obtained using geochemical, hydrochemical, analytical, and others.","PeriodicalId":39224,"journal":{"name":"Journal of Water and Land Development","volume":"396 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135636329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2