The rapid economic and population growth of Hong Kong and the Pearl River Delta region over the last few decades has created numerous threats to inland freshwater and coastal wetland biodiversity. In addition to the disruptive effect this has on the important ecological functions of wetland ecosystems, it is also causing water shortages and deteriorating water quality. The original landscape is extremely reduced and mountainous, so low-lying flat plains and wetlands formed by sedimentation have supported most development.



