CHANGSHA, April 18 (Xinhua) -- A camphor tree in Xinyuan Village of Hengshan County, central China's Hunan Province, stood strong for three centuries before it began to falter in recent years.

CHANGSHA, April 18 (Xinhua) -- A camphor tree in Xinyuan Village of Hengshan ... flood-control embankment compacted much of its root system, straining its ability to absorb water and nutrients.