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Evaluating Multifaceted Effects Of Watershed Properties And Human Activities On Drought Propagation In The Wei River Basin With An Integrated Framework.

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Evaluating Multifaceted Effects Of Watershed Properties And Human Activities On Drought Propagation In The Wei River Basin With An Integrated Framework.

Related Experiment Video

Watershed Planning within a Quantitative Scenario Analysis Framework

Watershed Planning within a Quantitative Scenario Analysis Framework

Published on: July 24, 2016

Evaluating multifaceted effects of watershed properties and human activities on drought propagation in the Wei River

Ruichen Mao¹, Bingjie Li¹, Jinxi Song²

¹Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China.

The Science of the Total Environment

|March 17, 2024

View abstract on PubMed

Summary

This summary is machine-generated.

Keywords:

Driving factors Geographical detector Hydrological drought Meteorological drought Soil and Water Assessment Tool Spatial heterogeneity

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Drought propagation is influenced by watershed characteristics and human activities. Understanding these factors is key for effective drought mitigation strategies in arid regions.

Area of Science:

Hydrology
Environmental Science
Climate Science

Background:

Meteorological drought propagation to hydrological drought is critical for water resource management.
Arid and semi-arid regions face significant challenges due to drought.

Purpose of the Study:

To investigate the influence of watershed properties and human activities on drought propagation in the Wei River Basin.
To analyze the spatial and seasonal heterogeneity of drought propagation.

Main Methods:

Utilized an integrated framework combining the Soil and Water Assessment Tool (SWAT) model, standardized drought indices, and Geographical Detector.
Assessed the impact of watershed properties and human activities on drought propagation dynamics.

Main Results:

Drought propagation times increased from southwest to northeast and were shorter/stronger in summer and autumn.
The aridity index was a key driver basin-wide, while human activities dominated in sub-basins, with synergistic interactions between factors.
Watershed properties influenced anthropogenic impacts, with strong human effects observed in specific watershed conditions (moderate drought, steep slopes, low elevation, small area).

Conclusions:

Watershed properties and human activities have complex, interacting effects on drought propagation.
Findings offer guidance for targeted drought mitigation strategies in the Wei River Basin and similar arid environments.