Water storage capacity and infiltration in undisturbed typical Chinese Mollisols
Black soil region in Northeast China is one of the four largest contiguous black belts in the world. Black soil s parent material contains higher heavy clay and its infiltration is poor. Thus, black soil is easy to form a perched water phenomenon, and may produce abundant surface runoff and lateral seepage especially when rainfall concentrates in summer. Simultaneously, leaching and topsoil erosion occur ( Li et al, 2003). Many scholars believe that the reclamation and tillage is the driving factor to accelerate ecological disturbance and soil erosion in black soil areas. Many researches have been conducted and abandoned land or fallow land was usually used as control (Ma et al, 2003; Liu et al, 1993; Liu et al, 1989). Because of different degree human interference, the abandoned land or fallow land can not reflect the o riginal characteristics of black soil accurately and its conclusion is difficult to explain the problem. Therefore, the very first issue of Black Soil Erosion Research is to understand the water storage capacity and infiltration in the original state. The purpose of this study was to measure and analyze the water storage capacity and infiltration in an undisturbed typical black soil (the prairie meadow and the populus davidiana secondary forests) to provide reference for water storage capacity and infiltration in the black soil farmland.
undisturbed black soil primitive characteristic water storage capacity infiltration
Yafan CHAI Enheng WANG Xiangwei CHEN Ruiying FAN
Forestry College, Northeast Forestry University, Harbin, 150040, China
国际会议
哈尔滨
英文
170-172
2010-07-13（万方平台首次上网日期，不代表论文的发表时间）