scholarly journals Efficient use of water resources to increase agricultural production of rice

2021 ◽  
Vol 845 (1) ◽  
pp. 012049
Author(s):  
M A Bandurin ◽  
I F Yurchenko ◽  
I P Bandurina ◽  
A P Bandurin
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Agricultural Production ◽  
Underground Water ◽  
Annual Runoff ◽  
Coliform Bacteria ◽  
Effective Control ◽  
Average Height ◽  
Kuban River ◽  
Quality Of Products

Abstract The construction of the Krasnodar reservoir has significantly increased the volume of replenished reserves of pressure underground water, which contributes to improving the efficiency of the use of water resources in the Kuban River basin. Relevance in improving the efficiency of water resources in the basin of the river Kuban to develop new solutions to the agricultural production of rice ensures the quality of products and crop stability. The problem of water quality is very acute. In the Kuban River basin, the annual runoff is subject to vertical zoning, and there is a regular decrease in the annual runoff modulus with a decrease in the average height of the catchment area and along the length of the watercourse. The most effective control is the construction of treatment facilities and the biological method of control in areas of reservoirs with low water exchange. Phosphates are pollutants of artificial origin. The content of phosphates in the reservoir on average exceeds the MPC 1.5-2.0 times. The analysis of available data on bacteriological and parasitological studies gives an idea of the current state of water resources. The results of laboratory tests showed that no parasitological contamination of the water was detected. Bacteriological contamination is present in all parts of the reservoir. The main type of contamination is the excess content of coliform bacteria.

scholarly journals Features of the Spring Flood Formation in the Arpa River Basin

2021 ◽  
pp. 126-152
Author(s):  
Keyword(s):  
River Basin ◽  
Weighted Average ◽  
Close Correlation ◽  
Annual Runoff ◽  
Average Height ◽  
Spring Flood ◽  
Correlation Relationship ◽  
Catchment Areas ◽  
The Mean ◽  
Maximum Runoff

The article considers main physical and geographical factors affecting the runoff, spring flood of rivers in the Arpa River basin, and analyzes the regularities of their spacetime distribution. The authors have obtained correlation relationship between the values of the flood runoff layer, the mean module maximum runoff and weighted average height of the catchment area of the Arpa River, between the mean annual maximum runoff module for the period floods and catchment areas of rivers. These dependencies can be used for preliminary estimates of the spring flood runoff of unexplored rivers of the territory under consideration. A close correlation between the values of the annual runoff and the runoff of the spring flood in the section of the Arpa River – Dzhermuk has been also revealed. It can be used for forecasting the annual flow.

The «rainfall-runoff» system and its long-term fluctuations in the Siverskyi Donets River Basin (Ukraine)

2021 ◽  
Author(s):  
Hanna Bolbot ◽  
Vasyl Grebin
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
River Basin ◽  
Air Temperature ◽  
River Runoff ◽  
Annual Runoff ◽  
Annual Precipitation ◽  
Spring Flood ◽  
Current Period

<p>The current patterns estimation of the water regime under climate change is one of the most urgent tasks in Ukraine and the world. Such changes are determined by fluctuations in the main climatic characteristics - precipitation and air temperature, which are defined the value of evaporation. These parameters influence on the annual runoff distribution and long-term runoff fluctuations. In particular, the annual precipitation redistribution is reflected in the corresponding changes in the river runoff.<br>The assessment of the current state and nature of changes in precipitation and river runoff of the Siverskyi Donets River Basin was made by comparing the current period (1991-2018) with the period of the climatological normal (1961-1990).<br>In general, for this area, it was defined the close relationship between the amount of precipitation and the annual runoff. Against the background of insignificant (about 1%) increase of annual precipitation in recent decades, it was revealed their redistribution by seasons and separate months. There is a decrease in precipitation in the cold period (November-February). This causes (along with other factors) a decrease in the amount of snow and, accordingly, the spring flood runoff. There are frequent cases of unexpressed spring floods of the Siverskyi Donets River Basin. The runoff during March-April (the period of spring flood within the Ukrainian part of the basin) decreased by almost a third.<br>The increase of precipitation during May-June causes a corresponding (insignificant) increase in runoff in these months. The shift of the maximum monthly amount of precipitation from May (for the period 1961-1990) to June (in the current period) is observed.<br>There is a certain threat to water supply in the region due to the shift in the minimum monthly amount of precipitation in the warm period from October to August. Compared with October, there is a higher air temperature and, accordingly, higher evaporation in August, which reduces the runoff. Such a situation is solved by rational water resources management of the basin. The possibility of replenishing water resources in the basin through the transfer runoff from the Dnieper (Dnieper-Siverskyi Donets channel) and the annual runoff redistribution in the reservoir system causes some increase in the river runoff of summer months in recent decades. This is also contributed by the activities of the river basin management structures, which control the maintenance water users' of minimum ecological flow downstream the water intakes and hydraulic structures in the rivers of the basin.<br>Therefore, in the period of current climate change, the annual runoff distribution of the Siverskyi Donets River Basin has undergone significant changes, which is related to the annual precipitation redistribution and anthropogenic load on the basin.</p>

АНАЛИЗ МНОГОЛЕТНЕЙ ДИНАМИКИ ВОДОПОЛЬЗОВАНИЯ НА ОРОСИТЕЛЬНЫХ СИСТЕМАХ КРАСНОДАРСКОГО КРАЯ

2020 ◽  
pp. 5
Author(s):  
N.O. Naumenko ◽  
A.A. Buber
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Anthropogenic Activity ◽  
Negative Consequences ◽  
Irrigation Systems ◽  
Water Users ◽  
Activity Measures ◽  
Krasnodar Region ◽  
Kuban River ◽  
Surface And Groundwater

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.

IMPACT OF FUTURE CLIMATE CHANGE (2020–2059) ON THE HYDROLOGICAL REGIME IN THE HEIHE RIVER BASIN IN SHAANXI PROVINCE, CHINA

2019 ◽  
Vol 01 (01) ◽  
pp. 1950003 ◽  
Author(s):  
AIDI HUO ◽  
XIAOFAN WANG ◽  
YUXIANG CHENG ◽  
CHUNLI ZHENG ◽  
CHENG JIANG
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
River Basin ◽  
Hydrological Regime ◽  
Annual Runoff ◽  
Heihe River Basin ◽  
Shaanxi Province ◽  
Future Climate Change ◽  
Heihe River ◽  
The Heihe River Basin

Assessing the impacts of climate change on hydrological regime and associated social and economic activities (such as farming) is important for water resources management in any river basin. In this study, we used the popular Soil and Water Assessment Tool (SWAT) to evaluate the impacts of future climate change on the availability of water resources in the Heihe River basin located within Shaanxi Province, China, in terms of runoff and streamflow. The results show that over the next 40 years (starting in 2020 till 2059), changes in the averaged annual runoff ratio are approximately [Formula: see text]11.0%, [Formula: see text]6.4%, 7.2%, and 20.4% for each of the next four consecutive decades as compared to the baseline period (2010–2019). The predicted annual runoff demonstrates an increase trend after a reduction and may result in increased drought and flood risk in the Heihe River basin. To minimize or mitigate these impacts, various adaptation methods have been proposed for the study area, such as stopping irrigation, flood control operation; reasonable development and utilization of regional underground water sources should be implemented in Zhouzhi county and Huyi region in the lower reaches of Heihe River basin.

A Zonal Watershed Hydrological Model Considering Land use and Land Cover Change and its Application

2013 ◽  
Vol 405-408 ◽  
pp. 2201-2207 ◽  
Author(s):  
Xi Nan Li ◽  
Ping Xie ◽  
Yong Zhu
Keyword(s):  
Land Use ◽  
Water Resources ◽  
Land Cover ◽  
Land Cover Change ◽  
River Basin ◽  
Hydrological Model ◽  
Daily Rainfall ◽  
Scientific Basis ◽  
Annual Runoff ◽  
Discharge Data

In order to evaluate quantitatively the hydrology and water resources effects of land use and land cover change (LUCC), a zonal watershed hydrological model considering land use and land cover change (ZWHM-LUCC) was developed. According to the daily rainfall, evaporation and discharge data of Wuding River Basin during 1980~2000, the parameters of the model were calibrated and verified. The results show that coefficient of water balance (R) is 1.004 and the qualified rate of annual runoff depth (DR) is86.67% during calibration period 1986~2000 and the R is 0.938 and the DR is 66.67% during calibration verification 1980~1985. The calculated results indicate that this model has good adaptability in Wuding River Basin. The different scenarios of land use/land cover were analyzed by the model, with 2000 year as base year, 13 scenarios were designed, which be helpful to study water-economy-ecology interactions and natural-social dualistic, and provide the scientific basis for Wuding river basin water and soil conservation planning and water resources planning.

scholarly journals The Impact of the Construction of Sponge Cities on the Surface Runoff in Watersheds, China

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Guoqiang Dong ◽  
Baisha Weng ◽  
Tianling Qin ◽  
Denghua Yan ◽  
Hao Wang ◽  
...  
Keyword(s):  
Surface Water ◽  
Water Resources ◽  
River Basin ◽  
Annual Runoff ◽  
Haihe River Basin ◽  
Annual Average ◽  
Haihe River ◽  
Capture Ratio ◽  
Surface Water Resources ◽  
The Haihe River Basin

In order to study the effect of the construction of the sponge cites on the process of urban water circulation in China, we analyzed the precipitation data from 756 stations across China between 1961 and 2011 and national land-use data in 2014. The spatial distribution characteristics of built-up area and amount of annual average runoff interception in sponge cities were explored in five different zonal scale levels. Assuming that the sponge cities have been built at the national-level construction land and the volume capture ratio of annual runoff is taken as 85%, the amount of annual average runoff interception in sponge cities is 988.58 × 108 m3 during 1961 to 2011 in China, where the annual precipitation is greater than or equal to 400 mm. The cities with more amount of annual average runoff interception are mostly distributed in Beijing-Tianjin-Hebei region, the Yangtze River Delta, and the Pearl River Delta. As to the Haihe River Basin, the annual average amount of surface water resources is 135.69 × 108 m3 between 2005 and 2014, and the amount of annual average runoff interception is 219.58 × 108 m3 from 1961 to 2011. The construction of sponge cities has the greatest impact on the surface water resources in the Haihe River Basin. Taking 80%–85% as the volume capture ratio of annual runoff in sponge cities is not reasonable, which may lead to the irrational exploitation and utilization of regional water and soil resources.

scholarly journals Evaluation of the Impacts of Climate Change on Runoff in Dadu River Basin Based on CORDEX Regional Climate Model

2021 ◽  
Author(s):  
Zhangrong Pan ◽  
Wei Li ◽  
Junhong Guo ◽  
Zhuo Chen ◽  
Hui Qin
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
River Basin ◽  
Climate Model ◽  
Swat Model ◽  
Regional Climate ◽  
Annual Runoff ◽  
Runoff Changes ◽  
The Future ◽  
Dadu River

Owing to the rich water resources, the Dadu River basin is an important hydroelectric resources development area in Sichuan Province over China. The climate change will have a great impact on the runoff change in the Dadu River Basin. The prediction of the future runoff in the Dadu River Basin can effectively improve the utilization rate of water resources, and provide a reference for hydropower dispatching. At first, to reduce the uncertainties from climate model, this paper used Stepwise Clustering Analysis to calibrate and validate the CORDEX regional climate model ensemble data from 1970 to 2005 and projected the climate change trend of Dadu River basin from 2035 to 2065. Then the Dadu River watershed scales of SWAT model was established, using the SWAT-CUP for calibration and verification. Finally, the corrected future climate data are used to drive the SWAT model to realize the future runoff forecast in the Dadu River Basin. The results show that under the scenario of RCP4.5 and RCP8.5, the variation range of rainfall is small, and the maximum and minimum temperatures show an overall increasing trend. The maximum (minimum) temperature will increase about 0.6℃ (1.0℃) under the scenarios of RCP4.5 and 0.9℃ (1.4℃) under the scenario of RCP8.5. Compared with the baseline period, the future (2035-2065) annual runoff under RCP4.5 and RCP8.5 scenarios will increase by about 8.6% and 8.2%, respectively. Under the future climate change, the inter-annual runoff in the Dadu River Basin will change greatly, and the trend of runoff fluctuation is not consistent before and after 2050. Before 2050, runoff changes are small, however, after 2050, runoff changes under the two scenarios will increase by about 12%. On the one hand, this trend may be due to the impact of iceberg melting on runoff caused by temperature changes around 2050, on the other hand, it may be due to the combined effect of local plant evapotranspiration and ecological regulation.

USE OF WATER RESOURCES IN THE KABUL RIVER BASIN

2021 ◽  
pp. 102-109
Author(s):  
I. V. GLAZUNOVA ◽  
◽  
A. O. RASIKH ◽  
N. P. KARPENKO ◽  
T. I. MATVEEVA
Keyword(s):  
Water Management ◽  
Water Resources ◽  
River Basin ◽  
Water Use ◽  
Demographic Data ◽  
General Scheme ◽  
River Pollution ◽  
Underground Water ◽  
Water Shortages ◽  
Kabul River

The article considers the issues and prospects of water use in the Kabul River basin (Afghanistan) taking into account the analysis of the current water management situation and taking into account the forecasts of the economic development compiled on the basis of the demographic data. The general scheme of water use, organization of water supply, provision of the population with water and sanitary drainage structures is presented. The analysis of the water resources use and structure of water management of Afghanistan in the Kabul river basin showed a wide use of groundwater to supply urban and rural population, livestock and irrigation while surface waters of rivers are hardly used by the population and sectors of the economy. The fulfilled analysis of the water use structure in the territory of the Kabul river basin showed that: 55% of the demand for water is provided by underground water,23% – by surface river runoff, 12% – by glacial water and 10% – by rain runoff. Comprehensive calculations based on the compilation of water management balances were carried out. Risks of water shortages and river pollution for the 2020 year and for the future until 2035 were checked for the estimated years on the provision of river fl ow of the Kabul River by 74% and 95%. A set of water management, water protection and management measures has been developed and recommended to prevent and eliminate the identified possible negative trends in water use. The analysis of the quality of water resources in Afghanistan was carried out which showed that the situation with water resources in the country has been noticeably improving in recent years.

scholarly journals Responses of Streamflow to Climate Change and Human Activities in a River Basin, Northeast China

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Hanwen Zhang ◽  
Wei Xu ◽  
Xintong Xu ◽  
Baohong Lu
Keyword(s):  
Water Resources ◽  
Linear Regression ◽  
River Basin ◽  
Human Activities ◽  
Annual Runoff ◽  
Regression Method ◽  
Linear Regression Method ◽  
Climate Elasticity ◽  
The Impact

It is now common knowledge that many water resources stresses relate to access to water within a basin. Yi River Basin, a typical river basin characterized by intensive agricultural processes, significant population growth, and water management, has been undergoing grave water problems. In this paper, the long-term trend of precipitation and streamflow in Yi River Basin, from 1964 to 2010, was investigated via Mann-Kendall test. The change point occurred in the year 1965 dividing the long-term series into two periods. Climate elasticity method and linear regression method were implemented to quantify the impact of precipitation and human activities on runoff and presented basically consistent results of the percentage change in an annual runoff for the postchange period. The results reveal that the decline of annual runoff in postchange period is mainly attributed to precipitation variability of 53.66–58.25% and human activities of 46.34–41.74%, as estimated by climate elasticity method and linear regression method, respectively. This study detected the changes in the precipitation-streamflow relationship and investigated the possible causes in the Yi River, which will be helpful for providing a reference for the management of regional water resources.

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