Sun Yat Sen Univ;
Sch Environm Sci & Engn;
Guangzhou 510275;
Guangdong;
Peoples R China;
Minist Environm Protect China;
Pearl River Basin Water Resource Protect Bur;
Guangzhou 510611;
Guangdong;
Peoples R China;
Minist Water Resources China;
Guangzhou 510611;
Guangdong;
Peoples R China;
forest; biomass; carbon storage; changes; the Pearl River Delta;