Factores anatómicos, dendrométricos y climáticos implicados en la producción de resina de Pinus pinaster AIT. : aplicación a la mejora de los métodos de resinación

García, Aida Rodríguez

doi:10.20868/upm.thesis.40524

Cited by 1 publication

(1 citation statement)

References 66 publications

(123 reference statements)

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“…The Tennant method, or the Montana method, divides the year into two periods: wet and dry, of which each one is assigned an appropriate percentage of the average interannual flow [12]. For each of the dry and wet periods, or better known in NMX-159 Appendix C as dry and flood seasons, respectively, the modified Montana method was applied, where its development and calculation, adapted to Mexico by IMTA for the evaluation of environmental impact due to hydraulic works, has generated favorable results [33]. According to the NMX-159, all the values of average monthly flows (Cmi) that are above the value of the average annual runoff (EMA) are considered flood periods.…”

Section: Appendix Amentioning

confidence: 99%

Comprehensive Methodology and Analysis to Determine the Environmental Flow Regime in the Temporary Stream “La Yerbabuena” in Aguascalientes, Mexico

Reyes-Cedeño

Hernández-Marı́n

Pacheco-Guerrero

et al. 2023

Water

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In this study, a comprehensive methodology was adapted to determine the environmental flow regime of “La Yerbabuena”, a temporary stream located in the Aguascalientes Valley, Mexico. The analysis was divided into four stages: the geomorphological watershed analysis, a hydrologic analysis, hydraulic modeling, and environmental analysis. The main geomorphological features of the study area were defined from maps in the spatial block, and with them, a synthetic series of daily and monthly discharge was determined and further used in the next stages. In the hydrological stage, the IHA (Indicators of Hydrologic Alteration) methodology and the procedures from the Mexican regulation, named NMX-159, were applied to the stream, and their results were comparatively analyzed. A similar interannual flow variation from both methodologies was found for wet and dry seasons, ranging from 0.010 to 0.108 m3/s. In the hydraulic modeling stage, a micro-basin part of the stream was modeled in the software HEC RAS, observing that the IHA methodology results had water levels that matched the baseflow of the stream, which allows understanding the hydraulic behavior of the water flow through the generation of different profiles in function of the rainy season. Finally, for the environmental stage, the hydrological health of the stream was evaluated using the software Flow Health, additionally observing that the IHA methodology was closer to the desired water level of the reference. This study demonstrates that the proposed methodology achieves the objectives defined by the NMX-159, which establishes a streamflow regime considering a natural interval of hydrologic variability in both ordinary and after-disturbance conditions. This application of the methodology for temporary streams provides an understanding of the hydrological behavior of the environmental flow throughout the year, and regarding the existing regulations, it presents a correlation with the obtained results, as well as greater precision in the dry season.

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Section: Appendix Amentioning

confidence: 99%