Showing results for: agriculture water Articles
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Agricultural water poverty in Marvdasht County, Southern Iran
The paper discusses the application of the Agricultural Water Poverty Index (AWPI) as an assessment tool for agricultural water in rural areas of Marvdasht County, Fars Province, Iran. Along with the global concern, water has become an increasing concern during the recent years in Iran. This paper provides an overview of the AWPI and the methodology to measure AWP by addressing the four key ...
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Changing mechanisms of agricultural water use in the urbanization and industrialization of China
The rapid urbanization and industrialization of China in recent years has presented serious challenges for the country in guaranteeing the preservation of agricultural water resources. This study selected four areas in China, each with different water resource and social development conditions. The relationship between the processes of urbanization and industrialization and recent ...
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Agricultural water vulnerability in rural Iran
Water is an important factor of production and livelihood support in rural communities. Meanwhile, water shortage is a virtually common feature in many arid and semi-arid countries. It is also projected that water stress will be exacerbated in such regions because of climate change. The cumulative effects of these stressors can potentially increase agricultural water vulnerability (AWV). ...
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Breaking the dilemma of agricultural water fee collection in China
Low agricultural water fee collection rates are a problem commonly faced by many developing countries and this is a problem faced by China as it enters the new century. There are two main problem-solving strategies used in different areas of China: increasing the water fee collection rate, or exempting people from paying the water fee. In those areas where the first strategy is pursued, local ...
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Conjunctive effect of water productivity and cultivation pattern on agricultural water management
Agricultural water resources are scarce in Iran, and agricultural water management is essential to overcome this limitation. Determination of the water productivity index (WP) using the methods of optimization of cropping patterns and optimal water allocation is the most effective tool in water management in the agricultural sector. In this study, a non-linear optimization model was used to ...
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Factors affecting adoption of agricultural water-saving technologies in Heilongjiang Province, China
This study aimed to find key factors influencing the decisions of farmers regarding the adoption of water-saving practices including the rice-controlling irrigation technique, drip irrigation under plastic film, and sprinkling irrigation in Heilongjiang Province, China. It was found that reliability of the water source and government promotion had very significant and positive associations with ...
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Agricultural Water Management
Water Wisdom: A Comprehensive Guide to Agricultural Water Management Water is essential for life and crucial for agriculture. As the global population continues to rise, so does the demand for food production. However, with limited resources such as water, it has become increasingly important for agricultural industries to find sustainable ways to manage this precious resource. In today’s ...
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Water for agriculture and the environment: the ultimate trade-off
Global population is projected to increase over year 2000 levels by 30% in 2025 and by 50% in 2050. Producing sufficient food to feed a more populous Earth will be a challenge requiring additional developed water supplies. Existing supplies are unevenly distributed around the planet. Some developing countries lack sufficient water to grow the food necessary to feed the growing population. With ...
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Hedonic analysis of farmland prices: the case of Aragon
A hedonic approach is used to study farmland prices in Aragon (Spain). Data over 450 transactions in 33 shires, in 2001 and 2002 are analysed. The marginal values for irrigated vs. non-irrigated land, the productive orientation and the differentiation of production through a Designation of Origin (D.O.) are used as explanatory variables. Socio-economic variables are also included. A Box-Cox ...
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Opportunities for saving and reallocating agricultural water to alleviate water scarcity
As water scarcity worsens globally, there is growing interest in finding ways to reduce water consumption, and for reallocating water savings to other uses including environmental restoration. Because irrigated agriculture is responsible for more than 90% of all consumptive water use in water-scarce regions, much attention is being focused on opportunities to save water on irrigated farms. At ...
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Review of agricultural water management policies in Near East and North African Region in light of water scarcity
This paper explores the current debate about water management policies and the factors affecting their formulation and implementation in the arid and semi–arid zones of the Near East and North African Region (NENAR). In this context, relevant and significant experiences of other countries in the world facing similar challenges are also considered (Sachdeva, 2009). The literature pertaining ...
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National Management Measures to Control Nonpoint Source Pollution from Agricultures
National Management Measures to Control Nonpoint Source Pollution from Agriculture is a technical guidance and reference document for use by State, local, and tribal managers in the implementation of nonpoint source pollution management programs. It contains information on the best available, economically achievable means of reducing pollution of surface and ground water from agriculture (Final ...
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Are agricultural chemicals affecting our water?
With the rate at which modern towns and cities expand it’s inevitable that the volume of separation between agricultural facilities and highly populated areas is shrinking. The loss of these areas can have a lasting impact, particularly when it comes to our water supplies. From an increase in water treatment prices to potentially dangerous levels of nitrogen, agricultural facilities ...
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Optimizing Agricultural Water Management through Water Quality Sensors
Water is a precious resource that plays a critical role in agricultural production. As the global population increases, meeting the demand for food and fiber becomes increasingly challenging, particularly in regions facing water scarcity. The utilization of water in agriculture must be efficient, sustainable, and environmentally friendly. This article explores how water quality sensors have ...
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Impact of agricultural water reallocation on crop yield and revenue: a case study in China
Our study area in the People's Victory Canal Irrigation District of Henan Province in China has been transferring agricultural water to the city for municipal use. This study starts with an examination of the impacts of irrigation frequency, irrigation water sources, and irrigation water supply performance on crop yield and net crop revenue, using data from a survey of 182 households in the ...
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Analysis of the hydraulics of the irrigation canals of Otrar, Kazakhstan
Surveys of relic canals at the Oasis of Otrar in Kazakhstan have been used to re-construct patterns of agricultural water use for irrigation between AD700 and AD1500. Hydraulic simulation software was used to calculate the water carrying capacity of historical irrigation canal networks. An analysis of modern day irrigation systems has enabled the calibration of crop water use models and an ...
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Modelling Common Agricultural Policy–Water Framework Directive interactions and cost-effectiveness of measures to reduce nitrogen pollution
Selecting cost-effective measures to regulate agricultural water pollution to conform to the Water Framework Directive presents multiple challenges. A bio-economic modelling approach is presented that has been used to explore the water quality and economic effects of the 2003 Common Agricultural Policy Reform and to assess the cost-effectiveness of input quotas and emission standards against ...
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Analysing the links between agriculture and climate change: can 'best management practices' be responsive to climate extremes?
Rural communities the world over depend on agriculturally–based livelihoods. In the Canadian prairies, access to sufficient quality and quantity of water can be challenging. Agriculture is fundamentally susceptible to access to water during critical crop germination and growth periods. Climate change models for the Canadian prairies indicate, in general, that summer growing seasons will ...
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Potential water savings associated with agricultural water efficiency improvements: a case study of California, USA
This study analyzes the potential for water savings from irrigation efficiency improvements in California, USA. We model water savings associated with three efficiency scenarios in wet, average and dry water years. The ‘efficient irrigation technology’ scenario shifts a fraction of the crops from flood irrigation to sprinkler and drip systems; the ‘improved irrigation scheduling’ scenario uses ...
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Estimation of maize evapotranspiration using extreme learning machine and generalized regression neural network on the China Loess Plateau
Accurately estimating crop evapotranspiration (ET) is essential for agricultural water management in arid and semiarid croplands. This study developed extreme learning machine (ELM) and generalized regression neural network (GRNN) models for maize ET estimation on the China Loess Plateau. Maize ET, meteorological variables, leaf area index (LAI), and plant height (hc) were continuously ...
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