关 键 字(英文):coniferous and broad-leaved mixed forest ecosystem hydrological process Dinghushan
摘 要(英文):Hydrological processes of coniferous and broad-leaved mixed forest ecosystem in Dinghushan were studied in this paper. By observation, we got the following results: (1) The precipitation and throughfall process were mainly related to the characteristics of precipitation, and the accumulative curves of throughfall changed synchronously with the precipitation accumulative curves; (2) The maximum precipitation and throughfall from July 27th to 28th, 2002 year were 122.8 mm and 104.9 mm, respectively, and the maximum throughfall lagged about 1 1hour behind maximum precipitation intensity; (3)The accumulative curves of precipitation and throughfall from August 18th to 20th ,2002year, are of the same changing tendency; (4) The precipitation and throughfall reached their maximum values, 59.6 mm and 43.6 mm, respectively, were almost at the same moment; (5) The accumulative curves of the stemflow and surface runoff fluctuated differently. The stemflow and surface runoff increased with the increasing of precipitation; (6) The values of stemflow and surface runoff is very low, 2.3~16.4 mm and 1.6~ 8.8 mm
inspectively, indicating a powerful capacity of holding water for the mixed forest ecosystem.; (7) The troughfall intensity was
dependent upon the precipitation intensity to a great extent, while the stemflow intensity and the runoff intensity values were very
low and changed little during the storm.