Figure 5: Map of region and field area.

(a) Location map of Huanjiang County within the Guangxi Province, China. (b) Location map of the studied catchment within the Huangjiang County. (c) Location of long-term observation field. (d) The layout of sampled land use plots. (a–c maps were created by ArcGIS 9.3 URL: http://www.esrichina.com.cn/softwareproduct/ArcGIS/; (d) photo were taken by Wei Luo & Xianli Xu using aerial instrument DJI Phantom 3 URL: http://www.dji.com/cn/products/phantom-3. Here we appreciate their supply).