Research Article

Drought Risk Assessment in Yunnan Province of China Based on Wavelet Analysis

Figure 7

Distribution of populations in drinking water access difficulties because of drought of Yunnan province in 2009–2013.
(a) Distribution of PDWDD in 2013
(b) Distribution of PDWDD in 2012
(c) Distribution of PDWDD in 2011
(d) Distribution of PDWDD in 2009-2010