The designing and building of the erosion plots in rain forest,rubber plantation and open field were discussed.

Nitrogen and Phosphorus Loss by Surface Runoff in Farmland in Shanghai;

Effect of tourism on nitrogen and phosphorus loss in surface runoff In Jiuzhaigou world nature heritage reserve;

Characteristics of nitrogen and phosphorus losses with surface runoff in typical sub-watersheds of Jiulong River watershed.;

Based on the data of hydrology, vegetation and socio-economy during the last 50 years in the Tarim River Basin, this paper estimated the impact of anthropogenic activities on surface runoff through trend analysis, and measured the relationship between factorsof anthropogenic activities and surface runoff and groundwater quality by correlation analysis and principal component analysis.

Mercury fluxes were calculated for throughfall,bulk deposition and runoff at two areas: a small forest catchment at Tieshanping(TSP) and an urban area Guanyinqiao(GYQ).

Agricultural non-point source nitrogen(N) and phosphorus(P) losses are one of the major factors resulting in surface waters eutrophication,while understanding the fluxes and chemical forms of N and P in runoff is critical to control the eutrophication of water bodies.

Phosphorus exports via overland runoff under different land uses and their seasonal pattern;

The transport of phosphorus especially bioavailable P (BAP) in agricultural runoff can accelerate the eutrophication of surface waters in the basin, so, it is important to study the characteristics of agricultural phosphorus losses with overland runoff around.

Sediment and phosphorus losses via overland runoff from erosion plots under different land uses were studied in an agricultural watershed in the Taihu Lake area in eastern China.

A preliminary study of rainfall infiltration on slope using a new coupled surface and subsurface flow model;

Based on the processes of formation of runoff from rainfall, slope erosion and sediment transport, runoff is decomposed to surface flow and ground water, and sediment transport process is divided into slope sediment yield by rainfall and surface flow, sediment ceded by ground water and sediment transported in river.

Selecting river network plain in Taihu basin as experiment places,triple duplication experiments have been carried out under the artificial rainstorm conditions to evaluate the characteristics of nitrogen losses from surface flow and interflow.

A runoff observation system was designed to partition runoff into overland flow and interflow,and the related basic information such as rainfall,air temperature,soil moisture,leaf area of corn,overland flow and interflow were collected from 24/5/2005 to 13/9/2005(at the growth stage of corn).

There are many different factors affecting overland flow,such as climate,geology and vegetation,among which vegetation type is a key factor.

The crown interception and overland flow in arborvitae plantation had been observed.