Next Article in Journal
A New Look at Image Fusion Methods from a Bayesian Perspective
Previous Article in Journal
Development of a High Resolution BRDF/Albedo Product by Fusing Airborne CASI Reflectance with MODIS Daily Reflectance in the Oasis Area of the Heihe River Basin, China
Article

Monitoring Earthquake-Damaged Vegetation after the 2008 Wenchuan Earthquake in the Mountainous River Basins, Dujiangyan County

by 1,2,3, 2,3,†, 1,*, 2,†, 4,† and 2,†
1
Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
2
Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China
3
University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100049, China
4
Technical Center for Geological Hazard Prevention and Control, Chinese Geological Survey, Chengdu 611734, China
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editors: Richard Gloaguen and Prasad S. Thenkabail
Remote Sens. 2015, 7(6), 6808-6827; https://doi.org/10.3390/rs70606808
Received: 26 March 2015 / Revised: 12 May 2015 / Accepted: 18 May 2015 / Published: 28 May 2015
The 2008 Wenchuan earthquake destroyed large areas of vegetation in the Baisha River and Longxi River basins, in Dujiangyan County, China. There were several debris flow events in these mountainous river basins after 2008. Currently, these damaged vegetation areas are in various stages of recovery. This recovery vegetation improves the resistance of slopes to both surficial erosion and mass wasting. We introduce a probabilistic approach to determining the relationships between damaged vegetation and slope materials’ stability, and model the sediment and flow (hydrological) connectivity index to detect the hydrological changes in a given river basin, using the multi-temporal (1994–2014) remote-sensing images to monitor the vegetation recovery processes. Our results demonstrated that the earthquake-damaged vegetation areas have coupling relationships with topographic environment and slope material properties, and can be used to assess the slope material stability. Further, our analysis results showed that the areas with horizontal distance to river streams <500 m are areas that actively contribute sediment to the stream channel network, and are main material sources for debris flow processes in one given mountainous basin. View Full-Text
Keywords: earthquake; vegetation recovery; remote sensing; hydrological connectivity earthquake; vegetation recovery; remote sensing; hydrological connectivity
Show Figures

Graphical abstract

MDPI and ACS Style

Zhang, H.; Wang, X.; Fan, J.; Chi, T.; Yang, S.; Peng, L. Monitoring Earthquake-Damaged Vegetation after the 2008 Wenchuan Earthquake in the Mountainous River Basins, Dujiangyan County. Remote Sens. 2015, 7, 6808-6827. https://doi.org/10.3390/rs70606808

AMA Style

Zhang H, Wang X, Fan J, Chi T, Yang S, Peng L. Monitoring Earthquake-Damaged Vegetation after the 2008 Wenchuan Earthquake in the Mountainous River Basins, Dujiangyan County. Remote Sensing. 2015; 7(6):6808-6827. https://doi.org/10.3390/rs70606808

Chicago/Turabian Style

Zhang, Huaizhen, Xiaomeng Wang, Jianrong Fan, Tianhe Chi, Shun Yang, and Ling Peng. 2015. "Monitoring Earthquake-Damaged Vegetation after the 2008 Wenchuan Earthquake in the Mountainous River Basins, Dujiangyan County" Remote Sensing 7, no. 6: 6808-6827. https://doi.org/10.3390/rs70606808

Find Other Styles

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop