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New Mexico Highlands University (2017)

Remote sensing evaluation techniques of traditional agriculture and acequia systems in the Upper Pecos River Valley, New Mexico USA

Aragón Amanda D.

Titre : Remote sensing evaluation techniques of traditional agriculture and acequia systems in the Upper Pecos River Valley, New Mexico USA

Auteur : Aragón Amanda D.

Université de soutenance : New Mexico Highlands University

Grade  : Master of Science (MS) 2017

Résumé
The purpose of this multidisciplinary geospatial study is to evaluate changes in agricultural land use and patterns in the Upper Pecos Valley in northern New Mexico, USA from the early 1980s through 2011. The investigation considers historic progressions of agricultural land use using Geographic Information System (GIS) and Remote Sensing techniques. A comparative investigation of a series of satellite imagery using the infrared pixel values examines changes in land use during a span of varying climatic conditions. In this semi-arid, high elevation environment, agricultural land management is self-governed, and involves constant physical movement of water, which to the community irrigation systems, known locally as "acequia." Landsat satellite images from 1948 to 2011 provide multispectral measurements of vegetation coverage and health over the early, middle, and late growing seasons within each of the selected years. Similar methods have been applied elsewhere to identify areas of agricultural transformation to urban and other cultural influences. In this study, noticeable changes in agriculture were detected. Changes to the local environmental conditions in the area have been additionally evaluated using records of climate, precipitation, stream gauge data, and historical literature. Results reveal that this self-managed agricultural system has a notable resilience to changes in natural environmental influences. Developing a further understanding of the Pecos River Valley and its agricultural land use practices will aid in conservation efforts and improve development within this physical and cultural landscape. Transfer of this knowledge to the local community through outlets like community center increases the understanding and value of modern science investigations to address local and global concerns.

Sujets : Water-supply New Mexico. Land use New Mexico. Acequias New Mexico. Agriculture New Mexico. Agriculture. Land use. Water-supply. New Mexico.

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Page publiée le 10 janvier 2020