Abstract:

Abstract: Take the elements migration characteristics of rock - soil - soilwater - plant system as the research objects which located on two different geomorphological sites of karst peak cluster-depression in huixian,guilin. Comparative analysis of basic characteristic, restrict factors and mutative trend of elements which on the depression and slope land.The results show that, It forms a remarkable feature of partial alkaline environment in the karst dynamic driving conditions. There is an ovbvious distinction of the soil profile elements between the depression and slope land. And the vertical elements’ changes of soil- water also shows a significant difference. The plants soil biological absorption coefficient is low,and the plant is the type of subjecting to restrictions of nitrogen. The feature of partial alkaline calcium-rich in the slope land is worse. The results show that there is a significant difference of the element migration between depression and slope land.