Sources and Risk Characteristics of Heavy Metals in Plateau Soils Predicted by Geo-Detectors
نویسندگان
چکیده
The ecological environment of the remote plateaus has been a challenge plaguing many countries due to global warming, increased human activities, and frequent occurrence various heavy metal (HM) pollutants. This paper analyzes primary factors potential susceptible regions’ characteristics related soil HMs (As, Cd, Pb, Cr, Ni, Zn) in southern Tibet Plateau (TP) using Geo-detectors set multi-source data from sensing geographic geological information. geoaccumulation index showed that As pollution was most serious. precipitation, pH, age (GA), rock type (RT) were critical affecting HMs. Additionally, relatively unaffected by land use clay. Based on risk detector, key impact types (range) predominant HM’s sources identified. For example, precipitation (100–200 mm), pH (7–7.5), DEM (>5500 m), RT (ophiolite), GA (Ordovician) had highest average concentration each (ranges) factors. work provides new extent HM contamination TP predicts vulnerable areas contamination, providing an important scientific basis for monitoring managing at high altitudes.
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ژورنال
عنوان ژورنال: Remote Sensing
سال: 2023
ISSN: ['2315-4632', '2315-4675']
DOI: https://doi.org/10.3390/rs15061588