Changes in water and soil metals in a Mediterranean restored marsh subject to different water management schemes

2015 ◽  
Vol 24 (2) ◽  
pp. 235-243 ◽  
Author(s):  
Juan Calvo-Cubero ◽  
Carles Ibáñez ◽  
Albert Rovira ◽  
Peter J. Sharpe ◽  
Enrique Reyes
2020 ◽  
pp. 1-19
Author(s):  
Cinalberto Bertozzi ◽  
Fabio Paglione

The Burana Land-Reclamation Board is an interregional water board operating in three regions and five provinces. The Burana Land-Reclamation Board operates over a land area of about 250,000 hectares between the Rivers Secchia, Panaro and Samoggia, which forms the drainage basin of the River Panaroand part of the Burana-Po di Volano, from the Tuscan-Emilian Apennines to the River Po. Its main tasks are the conservation and safeguarding of the territory, with particular attention to water resources and how they are used, ensuring rainwater drainage from urban centres, avoiding flooding but ensuringwater supply for crop irrigation in the summer to combat drought. Since the last century the Burana Land-Reclamation Board has been using innovative techniques in the planning of water management schemes designed to achieve the above aims, improving the management of water resources while keeping a constant eye on protection of the environment.


2019 ◽  
pp. 27-40
Author(s):  
Anutra Wannaviroj ◽  
Thavivongse Sriburi

This paper describes the selection of assessment criteria to assess agricultural water management schemes for on-farm ponds to support sustainable rain-fed agriculture, guided by the New Theory of His Majesty King Bhumibol Adulyadej. The candidate set of criteria was obtained from several international and national sources related to sustainable rain-fed agriculture and the New Theory. The criteria were reviewed and modified by the expert team based on the goals of the New Theory in order to define an initial site-specific set of criteria that conform with the context of socio-topographical conditions of Thailand. The team screened,assessed, and prioritized the criteria using three multiple criteria decision-making (MCDM) techniques- ranking, rating and pairwise comparisons- in order to attain the final locality set of the assessment criteria. The process resulted in selection of a set of three criteria, with 15 sub-criteria. This final locality set of criteria was used to conduct a sustainability assessment of agricultural water management schemes of on-farm ponds. Criterion 1 (The pursuit of self-reliant agriculture based on limited agricultural land and water resources) was given the highest weighting, followed by Criterion 3 (The pursuit of sustainable rain-fed agriculture) and Criterion 2 (Self-sufficiency of household daily consumption and income generation). At the sub-criterion level, sub-criterion 1.1 (Land use efficiency) and sub-criterion 1.5 (Water use efficiency) of Criterion 1; sub-criterion 2.1 (Food self-sufficiency) of Criterion 2; and sub-criterion 3.1 (Mixed farming) of Criterion 3 were given the highest weightings. Further research is needed to examine the applicability and reliability of the assessment criteria in field situations.


2021 ◽  
Vol 45 ◽  
Author(s):  
Rodrigo Amaro de Salles ◽  
Renan Baptista Jordaim ◽  
Tafarel Victor Colodetti ◽  
Wagner Nunes Rodrigues ◽  
José Francisco Teixeira do Amaral ◽  
...  

ABSTRACT The modification of water management in the Conilon coffee (Coffea canephora) crop is a possible strategy to improve nutritional management efficiency and ensure better use of the genotypes for regions of transitional altitude. The objective of this study was to evaluate the nutritional characteristics of 27 genotypes of C. canephora and submit them to two water management schemes in soil. The goal was to find evidence of higher leaf contents, exports, and nutrient recycling potential in the productive branches of various genotypes. The experiment was carried out in a randomized block design with three replications in a split-plot scheme. The treatment consisted of 27 genotypes of C. canephora and two water management schemes in soil (“Irrigated” and “Rainfed”). Nutritional content in leaves, exported by fruits, and pruned (leaves and stem of plagiotropic branches) recyclable contents were evaluated for nitrogen, phosphorus, potassium, calcium, and magnesium. Variations were observed among genotypes for all the parameters evaluated in both water management in soil. However, significant homogeneous groups were formed among the genotypes in the irrigated management. Furthermore, the genotypes showed distinct nutritional characteristics in response to water management in the soil. Genotypes 108 and 302 had higher nutritional content and were exported by fruits, regardless of soil water management.


Daedalus ◽  
2015 ◽  
Vol 144 (3) ◽  
pp. 94-109 ◽  
Author(s):  
Charles J. Vörösmarty ◽  
Michel Meybeck ◽  
Christopher L. Pastore

Water is an essential building block of the Earth system and a nonsubstitutable resource upon which humankind must depend. But a growing body of evidence shows that freshwater faces a pandemic array of challenges. Today we can observe a globally significant but collectively unorganized approach to addressing them. Under modern water management schemes, impairment accumulates with increasing wealth but is then remedied by costly, after-the-fact technological investments. This strategy of treating symptoms rather than underlying causes is practiced widely across rich countries but leaves poor nations and many of the world's freshwater life-forms at risk. The seeds of this modern “impair-then-repair” mentality for water management were planted long ago, yet the wisdom of our “water traditions” may be ill-suited to an increasingly crowded planet. Focusing on rivers, which collectively satisfy the bulk of the world's freshwater needs, this essay explores the past, present, and possible future of human-water interactions. We conclude by presenting the impair-then-repair paradigm as a testable, global-scale hypothesis with the aim of stimulating not only systematic study of the impairment process but also the search for innovative solutions. Such an endeavor must unite and cobalance perspectives from the natural sciences and the humanities.


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