scholarly journals Evolution of practice for center-pivot irrigated in Morrinhos (GO) and the pressure on water resources

2016 ◽  
Vol 12 ◽  
Author(s):  
Renato Adriano Martins ◽  
Ruth Elias de Paula Laranja ◽  
Idelvone Mendes Ferreira ◽  
Eduardo Vieira dos Santos
2021 ◽  
Vol 31 (1) ◽  
pp. 200-215
Author(s):  
Naouel Dali

Abstract Water in the Gareat El Tarf basin, is affected by climatic and economic constraints; while its development is based on the agricultural sector, which creates pressure on water resources. The objective of this study is to analyse the performance of the national water plan to accompany this policy, and the impact of climate change on water resources. The methodology adopted is the application of the WEAP(Water Evaluation and the Planning)software, in order to build a model for the allocation of water resources, up to 2050. The results obtained confirm that the impact of the economic policy shows a very important deficit that exceeds 400 million m3 in 2050. To face this challenge, it is recommended to adopt an economic strategy based on the protection of water resources and adapted to the supply capacities of renewable water resources.


2012 ◽  
Vol 36 (3) ◽  
pp. 318-324 ◽  
Author(s):  
Grasiela Bruzamarello Tognon ◽  
Cláudia Petry ◽  
Francine Lorena Cuquel

Green spaces require frequent watering, increasing the pressure on water resources. The use of native plants in landscaping reduces the risks of biological contamination, contributing to preservation of Brazilian biodiversity and provides the value of sustainability in urban green areas. Of these native plants, a restricted number are native lianas which are adapted to Brazilian climate and available on the market. In this regard, the selection and recommending of native plants which are efficient in use of water for planting in urban areas constitute an effective strategy for conservation of water resources. Thus, the purpose of this study was to evaluate the growth and development of I. cairica plants submitted to water deficit. For a period of 100 days after transplanting, plants of this species were grown with watered at pot capacity except for 30 days (from the 30th to the 60th day) when four water deficits (25, 50, 75 and 100% pot capacity) were applied. During all regimes of water deficiency applied, there was a 100% survival rate. After reestablishment of water regime the species recovered its growth, even that was submitted to the 25% of pot capacity. It testify that I. cairica is resistant to low water availability.


2013 ◽  
Vol 368-370 ◽  
pp. 311-317
Author(s):  
Jian Min Han ◽  
Ren Zhi Zhang

This paper analyze the relativity of water resources utilization in Minqin and social economic sustainable development adopting optimal multiple regressions. The results show that: 1There is remarkable correlation between the economic growth and the demand of water resources. On condition that the sustainable development of economy is satisfied, the growth of rural population is a huge pressure on water resources. It is an appropriate measure to coordinate the environmental protection and social economic development that reducing the consumption of water for rural population or accelerating the process of urbanization and developing forestry and animal husbandry. 2) Increasing urban population and developing industry and modern farming can promote our economic growth at the same time reduce the pressure on water resources significantly. 3) 97.5% of the variation in the total water requirement of Minqin is caused by two variables animal husbandry output value and rural population. So the major routes of rational utilization of water resources and the sustainable development of social economy in Minqin are reducing the consumption of water for rural population constantly or accelerating the process of urbanization and optimizing animal husbandry industry further.


Irriga ◽  
2017 ◽  
Vol 22 (2) ◽  
pp. 343-352 ◽  
Author(s):  
Emanuele Baifus Manke ◽  
Lessandro Coll Faria ◽  
Moisés Gomes Pereira ◽  
Bernardo Gomes Nörenberg ◽  
Tamara Leitzke Caldeira ◽  
...  

IDENTIFICAÇÃO DE ÁREAS IRRIGADAS POR PIVÔ CENTRAL E LINEAR MÓVEL NO ESTADO DO RIO GRANDE DO SUL  Emanuele Baifus Manke1; Lessandro Coll Faria2; Moisés Gomes Pereira3; Bernardo Gomes Nörenberg4; Tamara Leitzke Caldeira1 E Henrique Fonseca Elias de Oliveira5 1Programa de Pós-Graduação em Manejo e Conservação do Solo e da Água, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas, UFPel. Capão do Leão, RS, [email protected] de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, UFPel. Pelotas, RS, [email protected] Hídrico, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, UFPel. Pelotas, RS, [email protected] de Pós-Graduação em Recursos Hídricos, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, UFPel. Pelotas, RS, [email protected] Federal Goiano/Campus Ceres, IF Goiano, Ceres, GO, [email protected]  1 RESUMO A escassez de água em algumas regiões brasileiras retrata a importância da adequada gestão dos recursos hídricos. Entre as atividades que necessitam de água, a irrigação é considerada a mais exigente em termos de volume. O objetivo deste estudo foi identificar e quantificar a distribuição espacial dos sistemas de irrigação do tipo pivô central e linear móvel licenciados e em operação no Rio Grande do Sul, de tal forma que estas informações possam ser aplicadas na otimização da gestão de recursos hídricos. O conjunto de dados utilizado no estudo foi fornecido pela Fundação Estadual de Proteção Ambiental Henrique Luiz Roessler (FEPAM) e consistiu-se de coordenadas geográficas associadas aos sistemas de irrigação licenciados. Os sistemas de irrigação do tipo pivô central e linear móvel foram distribuídos nas doze principais bacias hidrográficas do Rio Grande do Sul. Verificou-se que há 1.285 equipamentos do tipo pivô central e linear móvel licenciados pela FEPAM, que irrigam uma área total de 91.849 ha. A maior concentração destes sistemas de irrigação está na região noroeste do estado, especialmente nas bacias hidrográficas do Alto Jacuí e Ijuí. Na região Sul, do Rio Grande Sul, apenas alguns sistemas do tipo pivô central e linear móvel foram observados, podendo este fato ser parcialmente atribuído à predominância de irrigação por inundação na cultura do arroz. Palavras-chave: Gestão de recursos hídricos, bacia hidrográfica, irrigação.  Manke, E. B.; Faria, L. C.; Pereira, M. G.; Nörenberg, B. G.; Caldeira, T. L.; Oliveira; H. F. E.IDENTIFICATION OF IRRIGATED AREAS BY CENTER PIVOT AND MOVING LATERAL IN STATE OF RIO GRANDE DO SUL  2 ABSTRACT Water scarcity in some Brazilian regions makes water resources management greatly important. Among the activities that need water, irrigation is considered the most demanding in terms of volume of water, and Rio Grande do Sul is one of the states in Brazil with the largest agricultural production. The objective of this study was to identify and quantify the geographical distribution of licensed center pivot and linear moving irrigation systems operating in Rio Grande do Sul state such that information can be applied to optimize water resources management. The main dataset used in the study was provided by Fundação Estadual de Proteção Ambiental Henrique Luiz Roessler (FEPAM) and consisted of geographical coordinates associated with the aforementioned licensed irrigation systems. These irrigation systems were distributed on the twelve main watersheds in Rio Grande do Sul state. There are 1,285 center pivot and linear moving equipments licensed by FEPAM, which irrigate an area of 91,849 ha. The greatest concentration of this irrigation system is in the Northwestern of Rio Grande do Sul state, especially in Alto Jacuí and Ijuí watersheds. On the other hand, only a few of such systems were observed in South region of Rio Grande do Sul state and this can be partially attributed to the predominance of flood irrigation for rice. Keywords: water resources management, watershed, irrigation.


2018 ◽  
Vol 16 (44) ◽  
pp. 63-74
Author(s):  
Lianet Avello Fernández ◽  
Eduardo Izaguirre Castellanos ◽  
Manuel Luciano Vidal Díaz ◽  
Alain S. Martínez Laguardia ◽  
Luis Hernández Santana

The availability of water resources in agriculture is a growing concern throughout the planet. The new technologies of automation and communications offer a set of solutions for the collection and analysis of information that make possible the decision making in the modern systems of agricultural irrigation. Important steps have been taken in the automation of irrigation systems, focused on the adequate determination of water requirements in crops, which has a positive effect on the saving of energy carriers, water resources, and agricultural productivity. In the present research we propose to perform a real-time control and monitoring system, allowing the operation and remote monitoring of irrigation machines of center pivot. For this, a programmable logic controller and wireless communication technology are used, according with the requirements and characteristics of the context of agricultural application..


2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Shikun Sun ◽  
Yubao Wang ◽  
Feifei Wang ◽  
Jing Liu ◽  
Xiaobo Luan ◽  
...  

Author(s):  
Mohammad Delpasand ◽  
Omid Bozorg-Haddad ◽  
Erfan Goharian

Abstract In many regions of the world, water scarcity has created numerous problems for the supply of domestic water use, agricultural production, and for the human life cycle in general. Perhaps in the near future water will be synonymous with gold. Over the past two decades, the virtual water concept has become known as a mitigating water scarcity crisis solution which can balance the unequal distribution of world water resources. Virtual water is the amount of water that a product consumes in a production process from start to end. Developers of the virtual water idea believe that by exporting and importing commodities, large volumes of water can be traded which is referred to as virtual water trading. In the theory of virtual water trade, in order to reduce the pressure on water resources, it is recommended that water-scarce countries import products instead of producing them from internal water sources and allocate these water resources for other lucrative business activities. Therefore, in this chapter, the virtual water concept and its specifications and evaluations are fully explained.


2017 ◽  
Vol 161 ◽  
pp. 1171-1179 ◽  
Author(s):  
Xinxin Zhang ◽  
Junguo Liu ◽  
Yu Tang ◽  
Xu Zhao ◽  
Hong Yang ◽  
...  

1990 ◽  
Vol 26 (1) ◽  
pp. 2-4 ◽  
Author(s):  
George H. Davis

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