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- Title
Soil Inorganic Carbon Accumulation in Sand Putting Green Soils: I. Field Relationships among Climate, Irrigation Water Quality, and Soil Properties.
- Authors
Obear, Glen R.; Soldat, Douglas J.
- Abstract
There is a widely-held belief in the turfgrass industry that irrigating with water high in bicarbonate will result in carbonate accumulation in the soil, despite a lack of evidence for this claim. While water quality problems are traditionally associated with arid regions, water quality recommendations are being applied to more humid regions where there is a lack of research to correlate water chemistry with soil properties. The objective of this study was to investigate the relationships among soil properties, climate, and irrigation water quality for golf courses across the United States. This study examines the vertical distribution of soil inorganic carbon (SIC) in 28 sand putting green soils across a range of geographic locations and climates. Soils below a pH of 7.8 had very little inorganic carbon, and soils above this pH had variable levels of inorganic carbon. There was no relationship between SIC and the estimated bicarbonate load from irrigation water, mean annual precipitation (MAP), or annual potential evapotranspiration (ETp). Our findings from this study do not provide evidence that bicarbonate from irrigation will cause formation of layers or zones of accumulation in putting green soils, contrary to this widely-held belief in the turfgrass industry.
- Subjects
TURFGRASSES; TURF management; WATER quality; METEOROLOGICAL precipitation; EVAPOTRANSPIRATION; PLANT transpiration; IRRIGATION
- Publication
Crop Science, 2016, Vol 56, Issue 1, p452
- ISSN
0011-183X
- Publication type
Article
- DOI
10.2135/cropsci2015.06.0341