Land, Air, and Water Resources on Sustainable Agricultural Development in Egypt

2018 ◽  
pp. 49-67
Author(s):  
Atef Ghandour
Keyword(s):  
Water Resources ◽  
Agricultural Development

scholarly journals Virtual water evaluation for grains productsin Iran Case study: pea and bean

2017 ◽  
Vol 35 (1) ◽  
pp. 275-280
Author(s):  
Hossein Yousefi ◽  
Ali Mohammadi ◽  
Mitra Mirzaaghabeik ◽  
Younes Noorollahi
Keyword(s):  
Water Resources ◽  
Water Use Efficiency ◽  
Water Use ◽  
Water Budget ◽  
Agricultural Development ◽  
Virtual Water ◽  
Use Efficiency ◽  
West Azerbaijan

AbstractShortage of water is considered as one of the most important straits of agricultural development in Iran. The main purpose of this study is to determine virtual water used to pea and bean production and water use efficiency, select the best area for cultivating these two grains and find the virtual water budget for the aforementioned grains. The results showed that among the three provinces main producers of pea in Iran, the highest virtual water of pea belongs to Lorestan with 3534 dm3·kg−1 and the lowest belongs to West Azerbaijan with 2660 dm3·kg−1 in irrigated cultivation. Water use efficiency in irrigated cultivation in Kermanshah and West Azerbaijan are at the same level; however, Kermanshah has enjoyed much more level of virtual water. For beans, the highest amount of virtual water in irrigated cultivation belongs to Lorestan (3651 dm3·kg−1) and the lowest amount refers to Markazi (2725 dm3·kg−1) and also the highest level of water use efficiency for this product refers to Markazi. Also it was found that 160.15 mln m3 of water has been exported from the country water resources by these products so virtual water budget for studied crops were negative.

scholarly journals Response of drip irrigated Broccoli (Brassica oleracea var. italica) in different irrigation levels and frequencies at field level

2018 ◽  
Vol 10 (1) ◽  
pp. 12-16
Author(s):  
Arti Kumari ◽  
Neelam Patel ◽  
A. K. Mishra
Keyword(s):  
Water Resources ◽  
Brassica Oleracea ◽  
Drip Irrigation ◽  
Crop Production ◽  
Agricultural Development ◽  
Water Productivity ◽  
Maximum Yield ◽  
Irrigation Frequency ◽  
Rapid Urbanization ◽  
Irrigation Levels

Geometric increase in population coupled with rapid urbanization, industrialization and agricultural development are causing increased pressure on global water resources. Agriculture is the largest consumer of fresh water resources, thus the scope of enhancing water productivity in agriculture is taken to be the priority area of research. The right amount and frequency of irrigation is essential for optimum use of limited water resources for crop production as well as management. A field experiment with split plot design was carried out during November to February 2015-16 at PFDC (Precision Farming Development Centre), Water Technology Centre, IARI, New Delhi to study the effect of different irrigation levels and frequencies on Broccoli (Brassica oleracea var. italica) under drip irrigation. The experiment included three levels of irrigation frequencies: N1 (once every day), N2 (once every 2 days) and N3 (once every 3 days) with different irrigation levels of 100, 80 and 60 % of crop evapotranspiration (ETc). Results revealed that drip irrigation frequency significantly (p<0.05) affected the broccoli yield. The maximum yield (24.46±0.18 t/ha) was obtained with 80% of ETc with once in 2 days irrigation followed by 100% of ETc with once in 2 days. Lowest yield (16.53±0.1 t/ha) was obtained at 60% of ETc at once in 3 days irrigation. Overall, it was observed that irrigation on 80% of ETc with once in two days is an appropriate cycle for optimum yield of broccoli.

ISU DAN PEMBAHARUAN PENGELOLAAN SISTEM IRIGASI Review and Perspectives

2019 ◽  
Vol 3 (2) ◽  
Author(s):  
Yusmi Nelvi
Keyword(s):  
Water Resources ◽  
Public Goods ◽  
Agricultural Development ◽  
Irrigation Management ◽  
Management Policy ◽  
Policy Reforms ◽  
Self Sufficiency ◽  
Development Goals ◽  
Management Policies ◽  
The Government

Pengelolaan irigasi adalah salah satu faktor pendukung utama bagi keberhasilan pembangunan pertanian terutama dalam rangka peningkatan serta perluasan tujuan pembangunan pertanian dari program swasembada beras menjadi swasembada pangan. Pemerintah telah mencanangkan pokok-pokok pembaharuan kebijaksanaan pengelolaan irigasi, petani pemakai air sesuai dengan hakekat  pembangunan dari, oleh dan untuk masyarakat agar pokok-pokok pembaharuan kebijaksanaan pengelolaan irigasi tersebut dapat mencapai sasaran tepat guna. Adanya pergeseran nilai air, dari sumberdaya milik bersama (public goods) yang melimpah dan dapat dikonsumsi tanpa biaya, menjadi sumberdaya ekonomi (economic goods) yang mempunyai fungsi sosial; terjadinya kerawanan ketersediaan air secara nasional; adanya persaingan pemanfaatan air antara irigasi dengan penggunaan oleh sektor-sektor lain; dan konversi lahan beririgasi untuk kepentingan lainnya, memerlukan adanya kebijakan. Kebijakan pengelolaan irigasi yang efektif, sehingga keberlanjutan sistem irigasi dan hak-hak atas air bagi semua pengguna dapat terjamin. Mengingat irigasi tidak terlepas dari pengelolaan sumberdaya air secara keseluruhan, maka reformasi kebijakan dalam bidang keirigasian harus dilaksanakan secara simultan dan konsisten dengan reformasi pengelolaan sumberdaya air secara keseluruhan. Kata Kunci : isu, pembaharuan, irigasiIrrigation management is one of the main supporting factors for the success of agricultural development, especially in the context of increasing and expanding agricultural development goals from rice self-sufficiency to food self-sufficiency. that the Government has set out the principles of renewal of irrigation management policies, water user farmers in accordance with the nature of the development of, by and for the community that the principles of renewal of irrigation management policies can achieve effective targets. There is a shift in the value of water, from abundant public goods resources that can be consumed without cost, to economic resources that have social functions; the occurrence of national water availability insecurity; competition over water use between irrigation and use by other sectors; and conversion of irrigated land for other purposes, requires an effective irrigation management policy, so that the sustainability of the irrigation sistem and the rights to water for all users can be guaranteed. Since irrigation is inseparable from the overall management of water resources, policy reforms in the field of irrigation must be carried out simultaneously and consistently with reforms in the management of water resources as a whole. Keywords: issues, renewal, irrigation

Sustainable Strategies and Status of Unconventional Water Resources Development and Utilization in Manas River Basin

2010 ◽  
Vol 113-116 ◽  
pp. 565-570 ◽  
Author(s):  
Zhen Hua Wang ◽  
Xin Lin He ◽  
Guang Yang ◽  
Sha Li
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Agricultural Development ◽  
Saline Water ◽  
Salt Water ◽  
Scientific Development ◽  
Return Flow ◽  
Exploitation And Utilization ◽  
Manas River Basin ◽  
Development And Utilization

Because of the Lack of water resources and the increasing water quantity used in living and production, the water resources are becoming the restrictive factor of regional economic and social development in in Manas river basin. The exploitation and utilization of conventional water resources has reached more than 95% in the basin,it caused great attention that the development and utilization of non-conventional water resources for agricultural development and ecological environment construction. At present, the exploitation and utilization of the non-conventional water resources(shallow underground salt water，saline water) for agriculture and forestry has become more and more widespread and in-depth. because of the lack of scientific instruction and reasonable exploitation, which not only caused water level falling, leading to degradation of the brittle natural entironment, but also caused SBHCSS and the decline in productivity. With the analysis of the non-conventional water resources actual exploitation and utilization, under the scientific development concept, the aryicle puts forward the sustained strategies of non-conventional underground water resources (salt water, saline water) reasonable exploitation and the irrigation return flow reuse efficient exploitation which is used for ecological restoration and reconstruction.

scholarly journals Sustainable Agricultural Groundwater Management for New Reclaimed Areas in Farafra Oasis, Western Desert of Egypt

2020 ◽  
Vol 9 (4) ◽  
pp. 118-127
Keyword(s):  
Water Resources ◽  
Groundwater Management ◽  
Agricultural Development ◽  
Extraction Rate ◽  
Western Desert ◽  
Groundwater Extraction ◽  
Groundwater Sustainability ◽  
Sustainability Criteria ◽  
Sustainable Extraction

Sustainable groundwater management is an important practice of water resources engineering, especially, in case of deserts and oases where there is no source of surface water and precipitation rarely occurs. The importance increases when the only source of groundwater is a nonrenewable aquifer. This is the case of new reclaimed areas in Farafra Oasis, Western Desert of Egypt. The only source of irrigation water is groundwater extracted from the nonrenewable Nubian Sandstone Aquifer (NSA). There is a great agricultural development in Farafra Oasis as a part of the 1.5 million feddan mega project. Agricultural development, for new areas, is a must for Egypt to fulfil the increasing food demand accompanied with the increasing population growth rate. However, this development has to consider the sustainability of groundwater usage along with the social, economic, and national security aspects. Groundwater extraction rate from NSA has increased. As it is a nonrenewable aquifer, there is no groundwater recharge. Consequently, the groundwater potentiometric level (GPL) decreases with time. The traditional sustainability concept of safe yield or discharge equals recharge is not applicable on such cases. The Ministry of Water Resources and Irrigation (MWRI) of Egypt set the groundwater sustainability criteria for groundwater-dependent new reclaimed areas in Farafra Oasis, Western Desert of Egypt. Both duration and economic lifting depth, have been considered. This paper presents groundwater sustainability assessment for extraction rates, Qwell = -1000, -2000, -3000, -4000, and -5000 m3 /d, to obtain the most beneficial sustainable extraction rate according to the MWRI sustainability criteria. A new groundwater-dependent reclaimed area of 10,000 feddan in Sahl Baraka, Farafra oasis, was taken as a case study area. GIS functions were used to obtain the values of unknown data and develop the initial groundwater potentiometric map. MODFLOW was used to construct a numerical model for groundwater extraction rate simulation for the case study area. This model was calibrated and used to obtain the depression cone drawdown (DCD) associated with different extraction rates. All NSA regional drawdown rates at Farafra oasis were considered. Benefit –Deficit analysis for duration and economic lifting depth criteria are presented and show that the extraction rate of Qwell = -3000 m3 /d is the most beneficial sustainable extraction rate according to the MWRI adopted sustainability criteria

Reclaimed water irrigation: Accumulation of contaminants of emerging concern in food crops

2021 ◽  
Author(s):  
Laura Ponce Robles ◽  
Daniel Bañón Gómez ◽  
Antonio José García García ◽  
Francisco Pedrero Salcedo ◽  
Pedro Antonio Nortes Tortosa ◽  
...  
Keyword(s):  
Water Resources ◽  
Water Scarcity ◽  
Agricultural Development ◽  
Low Cost ◽  
Reclaimed Water ◽  
Water Source ◽  
Absorption Capacity ◽  
Irrigated Agriculture ◽  
Food Crops ◽  
Contaminants Of Emerging Concern

&lt;p&gt;Irrigated agriculture is a predominant economic activity in many areas of the Mediterranean region. &amp;#160;However, water scarcity and restrictions on the use of fresh water resources in high agricultural production regions, endangers sustainable agricultural development. &amp;#160;So, alternative water resources are necessary.&lt;/p&gt;&lt;p&gt;The use of reclaimed water for agriculture irrigation makes available a low-cost water source, providing an additional source of nutrients for the plants, helping to reduce the amount and costs associated with the consumption of synthetic fertilizers in agriculture. However, this practice is not a remedy for water scarcity free of disadvantages. Among them, the presence of contaminants of emerging concern (CECs) is one of the most worrying to the scientific community. The problem with these compounds is that they are not completely removed during wastewater treatment, which makes their long-term consequences unpredictable. On the other hand, the absorption and bioaccumulation of CECs in food crops is a matter still to be clarified.&lt;/p&gt;&lt;p&gt;In this work, the absorption capacity, accumulation and persistence of a selected group of CECs in real crops (baby lettuce) irrigated with reclaimed water from a WWTP were evaluated. Results showed different behaviors depending on CECs properties and concentrations, indicating a progressive accumulation when the culture time increased. So, the chemical quality of reclaimed water is a key issue in safe agricultural irrigation.&lt;/p&gt;

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