In order to understand the water conservation function of forest in the Three Gorges Region of Yangtze River and provide fundamental basis for vegetation construction of this region,the function of canopy interception of three main forest types based on the data from fixed sample plots in Jinyun Mountain in Chongqing City were studied.

4 mm: a) canopy interception was 67.

A Pinus tabulaeformis plantation in western Miyun Reservoir of Beijing city was observed and ana- lyzed to study canopy interception,throughfall,and stemflow.

The interception of rainfall by vegetation and the subsequent evaporation of intercepted water from canopy surface play an important rule in hydrological processes,water and energy balance of forest ecosystem.

Studied on the interception and water holding function of six main forest types from four ecological layers in Zhushatu small watershed of Three Gorges Reservoir Area, then the comprehensive estimating has been made on the hydrological effect of the six forest types.

The interception of rainfall by vegetation and the subsequent evaporation of intercepted water from canopy surface play an important rule in hydrological processes, water and energy balance of forest ecosystem.

Characteristics of rainfall and crown interception of shrub in wind-water erosion interleaving region of Loess Plateau;

Canopy interception is an important hydrological process in forest ecosystem,and its modelling is of significance to understand and estimate the rainfall interception by the canopy.

70%, the canopy interception (23.