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Article CommentaryA Section

Commentary on “Effect of brush control on evapotranspiration in the North Concho River watershed using the eddy covariance technique” by Saleh et al. (2009)

Bradford P. Wilcox, John W. Walker and James L. Heilman
Journal of Soil and Water Conservation July 2010, 65 (4) 83A-84A; DOI: https://doi.org/10.2489/jswc.65.4.83A
Bradford P. Wilcox
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John W. Walker
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James L. Heilman
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In a paper “Effect of brush control on evapotranspiration in the North Concho River watershed using the eddy covariance technique,” published in the September/October 2009 issue of the Journal of Soil and Water Conservation, Saleh et al. argue that clearing mesquite has “great potential” for increasing water yield in the North Concho River watershed near San Angelo, Texas. The clear implication is that shrub removal is a viable strategy for increasing water supply to the city of San Angelo. The authors make this argument mainly on the basis of the small differences in evapotranspiration rates they measured between pastures with mesquite and those without mesquite.

We do not dispute the fact that the timing and amount of evapotranspiration may be affected by differences in tree cover and density, but we do not agree that these modest differences will translate to meaningful changes in water supply. There is already overwhelming evidence that brush management in the North Concho watershed will not lead to increases in water flow in the North Concho. A brush control project was begun in the North Concho watershed 10 years ago, and even though this period included one of the wettest years on record (2007), there has…

Footnotes

  • Bradford P. Wilcox is professor at the Department of Ecosystem Science and Management, Texas A&M University, College Station, Texas. John W. Walker is professor and resident director of research at Texas AgriLife Research and Extension Center, San Angelo, Texas. James L. Heilman is professor at the Department of Soil and Crop Sciences, Texas A&M University, College Station, Texas.

    • © 2010 by the Soil and Water Conservation Society

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    Journal of Soil and Water Conservation: 65 (4)
    Journal of Soil and Water Conservation
    Vol. 65, Issue 4
    July/August 2010
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    Commentary on “Effect of brush control on evapotranspiration in the North Concho River watershed using the eddy covariance technique” by Saleh et al. (2009)
    Bradford P. Wilcox, John W. Walker, James L. Heilman
    Journal of Soil and Water Conservation Jul 2010, 65 (4) 83A-84A; DOI: 10.2489/jswc.65.4.83A

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    Commentary on “Effect of brush control on evapotranspiration in the North Concho River watershed using the eddy covariance technique” by Saleh et al. (2009)
    Bradford P. Wilcox, John W. Walker, James L. Heilman
    Journal of Soil and Water Conservation Jul 2010, 65 (4) 83A-84A; DOI: 10.2489/jswc.65.4.83A
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