Abstract:

Hydrological effects of Castanopsis eyrei forest in Wuyi Mountain were studied in 2004 The results indicated: 1)There were 219 precipitations in 2004 and the total precipitation during this period was 1 767.4 mm， throughfall, stemflow and interception was 1 304.9, 245.0 and 217.5 mm, respectively, and which accounted for 73.8%, 13.9% and 12.3% of precipitation, respectively; 2) The throughfalls at different places in the forest were different significantly for the same precipitation, furthermore the relationship between throughfall and total precipitation was linear; 3) With the DBH increasing, the stemflow decreased, and the time taking stemflow was postponed; 4) When precipitation was lower than 202.1 mm, the interception increased with precipitation increasing, when precipitation was higher than 202.1 mm, the interception inclined to 52.5 mm.

Key words: Castanopsis eyrei, rainfall redistribution, hydrological effect, throughfall, stemflow, canopy interception