کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8848472 | 1618204 | 2018 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An ecohydrological stream type classification of intermittent and ephemeral streams in the southwestern United States
ترجمه فارسی عنوان
طبقه بندی نوع جریان اکو هیدرولوژیکی جریان های متناوب و طولانی مدت در جنوب غربی ایالات متحده است
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کلمات کلیدی
نظامی، زمین نیمه خشک، طبقه بندی جریان، آنالیز خوشه ای، درختان طبقه بندی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
چکیده انگلیسی
An ecohydrological stream type classification was developed to improve decision making for ephemeral and intermittent streams at four military reservations in the southwestern U.S.: Fort Irwin, Yuma Proving Ground (YPG), Fort Huachuca, and Fort Bliss. Agglomerative hierarchical cluster analysis was used to classify stream reaches by ecohydrologic properties (vegetation, hydrologic, and geomorphic attributes derived using geographic information system analyses), and Classification and Regression Trees (CART) were used to determine thresholds for each variable for a predictive model. Final stream types were determined from statistical analyses, cluster validity tests, examination of mapped clusters, and site knowledge. Climate regime and geomorphology were most important for YPG and Fort Irwin where annual precipitation is low. Vegetation variables were important at Fort Bliss and hydrologic variables were important at Fort Huachuca where higher annual precipitation and a bimodal rainfall pattern occur. The classification results and input variables are spatially linked to specific stream reaches, allowing managers to identify locations with similar attributes to support management actions. These methods enable the development of a stream type classification in gauged or ungauged watersheds and for areas where intensive field data collection is not feasible.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Arid Environments - Volume 155, August 2018, Pages 16-35
Journal: Journal of Arid Environments - Volume 155, August 2018, Pages 16-35
نویسندگان
Lainie Levick, Samantha Hammer, Russell Lyon, Joel Murray, Amy Birtwistle, Phillip Guertin, David Goodrich, Brian Bledsoe, Melinda Laituri,