کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10997858 | 1332079 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Human impact on natural systems modeled through soil erosion in GeoWEPP: A comparison between pre-Hispanic periods and modern times in the Teotihuacan Valley (Central Mexico)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Anthropogenic changes during the past 2000Â years in the Teotihuacan Valley imply that intensity of soil degradation varies depending on the land management practices and the intensity of soil use. As a part of a broader effort to reconstruct erosion dynamics in the Teotihuacan Valley through geoarchaeological approaches, our study applies a process-based watershed hydrology and upland erosion model, the Water Erosion Prediction Project (WEPP). The Geo-spatial interface for WEPP (GeoWEPP) was used to characterize locations of soil detachment and sediment deposition predicted in the watershed through time, based on current and reconstructed conditions in the valley. Climate, topography, soil and land use were used as inputs to WEPP to estimate surface runoff and soil loss rates for periods with different environmental and anthropogenic conditions: the Teotihuacan period (1-650Â CE), the Aztec period (1325-1521Â CE) and for modern times (after 1970Â CE). Over a simulated and established timeframe for those periods, surface runoff and rate of soil loss were estimated to be higher during the Aztec period, when the area devoted to agriculture dominated the landscape. Land use change had a major impact on soil erosion. Comparison of the pre-Hispanic periods with current conditions shows that WEPP is useful in showing the roles of management and climate in environmental degradation. The results contribute to the scientific debate about the antiquity and causes of erosion in central Mexico. The research shows that land use is one of the foremost factors affecting soil erosion, both in ancient and modern periods, with particular impact during the Aztec period.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: CATENA - Volume 149, Part 1, February 2017, Pages 505-513
Journal: CATENA - Volume 149, Part 1, February 2017, Pages 505-513
نویسندگان
M. Lourdes González-Arqueros, Manuel E. Mendoza, Lorenzo Vázquez-Selem,