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A remote sensing and GIS analysis of...

Calhoun, Charles.

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A remote sensing and GIS analysis of riparian vegetation change along the San Pedro River, Arizona.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	A remote sensing and GIS analysis of riparian vegetation change along the San Pedro River, Arizona./
Author:	Calhoun, Charles.
Description:	84 p.
Notes:	Source: Masters Abstracts International, Volume: 45-05, page: 2439.
Contained By:	Masters Abstracts International45-05.
Subject:	Physical Geography. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1442349

A remote sensing and GIS analysis of riparian vegetation change along the San Pedro River, Arizona.
Calhoun, Charles.

A remote sensing and GIS analysis of riparian vegetation change along the San Pedro River, Arizona. - 84 p.

Source: Masters Abstracts International, Volume: 45-05, page: 2439.

Thesis (M.A.)--University of Arkansas, 2007.

Landsat imagery of the San Pedro River was acquired for the years 1973, 1986, and 2000 to detect changes in the riparian vegetation of the San Pedro River. A supervised classification was performed based on USGS land cover data. Polygons were then digitized of the area surrounding the San Pedro River that contained riparian vegetation. The area of the riparian vegetation was then calculated. These calculations revealed that the area of riparian vegetation increased from 1973 to 1986, but decreased from 1986 to 2000.Subjects--Topical Terms:

893400
Physical Geography.

A remote sensing and GIS analysis of riparian vegetation change along the San Pedro River, Arizona.
LDR:02118nam 2200253 a 45 001 940751
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035 $a (UMI)AAI1442349
035 $a AAI1442349
040 $a UMI $c UMI
100 1 $a Calhoun, Charles. $3 1264880
245 1 2 $a A remote sensing and GIS analysis of riparian vegetation change along the San Pedro River, Arizona.
300 $a 84 p.
500 $a Source: Masters Abstracts International, Volume: 45-05, page: 2439.
502 $a Thesis (M.A.)--University of Arkansas, 2007.
520 $a Landsat imagery of the San Pedro River was acquired for the years 1973, 1986, and 2000 to detect changes in the riparian vegetation of the San Pedro River. A supervised classification was performed based on USGS land cover data. Polygons were then digitized of the area surrounding the San Pedro River that contained riparian vegetation. The area of the riparian vegetation was then calculated. These calculations revealed that the area of riparian vegetation increased from 1973 to 1986, but decreased from 1986 to 2000.
520 $a Precipitation and streamflow discharge records were compiled and analyzed to investigate the relationship between these two parameters and riparian vegetation. There were no statistically significant changes in precipitation; however, there was the streamflow discharge change from 1986 to 2000 was statistically significant. The trends in streamflow discharge matched the trends in riparian vegetation area, which led to the assumption that the area of riparian vegetation is dependent on streamflow. Precipitation variations were considered as a cause for the decrease in streamflow, but were discounted based on previous trends. The likely causes for the decrease in streamflow are changes in vegetation that increased aridity and a rise in groundwater pumping to support the growing human population of the region.
590 $a School code: 0011.
650 4 $a Physical Geography. $3 893400
650 4 $a Remote Sensing. $3 1018559
690 $a 0368
690 $a 0799
710 2 $a University of Arkansas. $3 1017562
773 0 $t Masters Abstracts International $g 45-05.
790 $a 0011
791 $a M.A.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1442349