How Do Agricultural Practices Modify Soil Nutrient Dynamics in CCB?
Por:
Tapia-Torres, Yunuen, Chavez Ortiz, Pamela, Hernandez-Becerra, Natali, Moron Cruz, Alberto, Beltran, Ofelia, Garcia-Oliva, Felipe
Publicada:
1 ene 2018
Resumen:
Increasing crop production to satisfy food demand of the growing
population is one of the greatest challenges that we currently face.
This has increased the rate at which natural ecosystems are transformed
into agricultural systems. These land use changes, which are accompanied
by agricultural practices such as the use of agrochemicals (pesticides
and fertilizers), tillage, and irrigation, can lead to ecosystem
degradation. Nationally, the state of Coahuila ranks seventh in
production of alfalfa (1, 742,149 Mg), which is primarily used to feed
the livestock in the country's largest milk-producing area, Comarca
Lagunera in Torreon. The alfalfa produced at Cuatro Cienegas Basin (CCB)
is transported to this region, therefore, effectively exporting the
wetland water and threatening CCBs' sustainability.
For more than 10 years, our research group has been studying soil
nutrient dynamics and soil bacterial biodiversity in CCB. Analysis of
key soil attributes has allowed us to evaluate the drastic changes
caused by land use change (native grassland into agricultural land) and
to identify the soil processes that are vulnerable to management and,
therefore, the factors that modify nutrient availability for the biota
and how these factors could increase soil degradation. Our findings can
serve as the basis for implementation of land remediation practices in
CCB, and the set of soil attributes and variables used in our studies
may also be extrapolated to different ecosystems for the same purpose.
Filiaciones:
Tapia-Torres, Yunuen:
Univ Nacl Autonoma Mexico, Escuela Nacl Estudios Super, Unidad Morelia, Morelia, Michoacan, Mexico
Chavez Ortiz, Pamela:
Univ Nacl Autonoma Mexico, Inst Invest Ecosistemas & Sustentabilidad, Morelia, Michoacan, Mexico
Hernandez-Becerra, Natali:
Univ Nacl Autonoma Mexico, Escuela Nacl Estudios Super, Unidad Morelia, Morelia, Michoacan, Mexico
Moron Cruz, Alberto:
Univ Nacl Autonoma Mexico, Escuela Nacl Estudios Super, Unidad Morelia, Morelia, Michoacan, Mexico
Beltran, Ofelia:
Univ Nacl Autonoma Mexico, Inst Invest Ecosistemas & Sustentabilidad, Morelia, Michoacan, Mexico
Garcia-Oliva, Felipe:
Univ Nacl Autonoma Mexico, Inst Invest Ecosistemas & Sustentabilidad, Morelia, Michoacan, Mexico
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