Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Entire DC Network
Evaluating The Vegetation Recovery In The Damage Area Of Wenchuan Earthquake Using Modis Data, Wei-Guo Jiang, Kai Jia, Jian-Jun Wu, Zhenghong Tang, Wen-Jie Wang, Xiao-Fu Liu
Evaluating The Vegetation Recovery In The Damage Area Of Wenchuan Earthquake Using Modis Data, Wei-Guo Jiang, Kai Jia, Jian-Jun Wu, Zhenghong Tang, Wen-Jie Wang, Xiao-Fu Liu
Community and Regional Planning Program: Faculty Scholarly and Creative Activity
The catastrophic 8.0 Richter magnitude earthquake that occurred on 12 May 2008 in Wenchuan, China caused extensive damage to vegetation due to widespread landslides and debris flows. In the past five years, the Chinese government has implemented a series of measures to restore the vegetation in the severely afflicted area. How is the vegetation recovering? It is necessary and important to evaluate the vegetation recovery effect in earthquake-stricken areas. Based on MODIS NDVI data from 2005 to 2013, the vegetation damage area was extracted by the quantified threshold detection method. The vegetation recovery rate after five years following the earthquake …
Accounting For The Short Term Substitution Effects Of Walking And Cycling In Sustainable Transportation, Daniel P. Piatkowski, Kevin J. Krizek, Susan L. Handy
Accounting For The Short Term Substitution Effects Of Walking And Cycling In Sustainable Transportation, Daniel P. Piatkowski, Kevin J. Krizek, Susan L. Handy
Community and Regional Planning Program: Faculty Scholarly and Creative Activity
The environmental benefits of bicycling and walking depend on the degree to which their use substitutes for car driving. Assuming that every walking and bicycling trip replaces a driving trip is likely to produce overestimates of the potential for such modes to reduce vehicle travel and city-scale greenhouse gas emissions. Measuring this ‘‘substitution effect’’ is not straightforward. There are many dimensions of the substitution effect, including trip type, substituting mode, extent, time horizon, and activity patterns. Previously used approaches to measure substitution include indirect inference and direct questioning. This study piloted an intercept survey using the direct questioning approach at …