CONSTRUCTION CHARACTERISTICS AND MANAGEMENT PRACTICES OF IN‐FARM IRRIGATION PONDS IN INTENSIVE AGRICULTURAL SYSTEMS — AGRONOMIC AND ENVIRONMENTAL IMPLICATIONS

The structural and management characterization of 101 ponds, used for greenhouse drip irrigation, was assessed on the south‐eastern coast of Spain, with the objective of proposing more sustainable management practices. Different management methods were carried out by growers with the aim of controlling pond biological activity and improving the irrigation water quality. Pond covering was highly effective in preventing submerged aquatic vegetation (SAV) development but the high cost of installing and maintaining covers limit its use. Pond dredging and biocide treatments were relatively expensive and ineffective in controlling mid and long‐term SAV development. No clear criteria were observed for biocide use (products, dosage and scheduling). SAV developed spontaneously in 48.5% of uncovered ponds. Chara species, which tend to form dense meadows in the pond bottom and are highly valuable for aquatic biodiversity conservation, may improve the water quality and are unlikely to hinder agricultural pond uses. More sustainable management practices based on preserving SAV in ponds, particularly charophytes, and reducing or suppressing dredging and biocide use may be successful in accomplishing both agronomic and environmental pond functions. Copyright © 2012 John Wiley & Sons, Ltd.

[1]  S. Bonachela,et al.  Artificial ponds in a Mediterranean region (Andalusia, southern Spain): agricultural and environmental issues , 2011 .

[2]  O. Marfá,et al.  Oxygen enrichment of nutrient solution of substrate-grown vegetable crops under Mediterranean greenhouse conditions: oxygen content dynamics and crop response , 2010 .

[3]  J. Leyva,et al.  Economic assessment of shade-cloth covers for agricultural irrigation reservoirs in a semi-arid climate , 2009 .

[4]  M. M. González-Real,et al.  Regional assessment of evaporation from agricultural irrigation reservoirs in a semiarid climate , 2008 .

[5]  María Dolores Fernández,et al.  Analysis of on-farm irrigation performance in Mediterranean greenhouses , 2007 .

[6]  S. Bonachela,et al.  Environmental factors and management practices controlling oxygen dynamics in agricultural irrigation ponds in a semiarid Mediterranean region: implications for pond agricultural functions. , 2007, Water research.

[7]  P. Williams,et al.  15 years of pond assessment in Britain : results and lessons learned from the work of Pond Conservation , 2005 .

[8]  E. V. van Hullebusch,et al.  Copper Accumulation in a Reservoir Ecosystem Following Copper Sulfate Treatment (St. Germain Les Belles, France) , 2003 .

[9]  M. Scheffer,et al.  Aquatic macrophytes: restore, eradicate or is there a compromise? , 2002 .

[10]  A. Green,et al.  Dispersal of aquatic organisms by waterbirds: a review of past research and priorities for future studies , 2002 .

[11]  Andreas N. Angelakis,et al.  The status of wastewater reuse practice in the Mediterranean basin: need for guidelines , 1999 .

[12]  C. Boyd,et al.  Risks associated with the use of chemicals in pond aquaculture , 1999 .

[13]  Anabel Sánchez,et al.  Seasonal variations in P–I responses of Chara hispida L. and Potamogeton pectinatus L. from stream mediterranean ponds , 1998 .

[14]  M. Scheffer Ecology of Shallow Lakes , 1997, Population and Community Biology Series.

[15]  A. Middelboe,et al.  Depth limits and minimum light requirements of freshwater macrophytes , 1997 .

[16]  Duane A. Benoit,et al.  The effects of water chemistry on the toxicity of copper to fathead minnows , 1996 .

[17]  J. Ramos-Miras,et al.  The paradox of the conservation of an endangered fish species in a Mediterranean region under agricultural intensification , 2011 .

[18]  S. Downward,et al.  An assessment of Spain's Programa AGUA and its implications for sustainable water management in the province of Almería, southeast Spain. , 2007, Journal of environmental management.

[19]  A. Giménezb,et al.  Irrigation pools as macroinvertebrate habitat in a semi-arid agricultural landscape ( SE Spain ) , 2006 .

[20]  E. Fereresa,et al.  Evapotranspiration of horticultural crops in an unheated plastic greenhouse , 2005 .