An Index System and Method for Soil Productivity Evaluation on the Hillside

Abstract

Abstract: For a long time, soil productivity evaluation has been one of the hotspots in soil science. In this article, research conducted to investigate vertical root distribution characters, root drought-resistance ability, the soil physical and chemical properties and the local scioeconomical conditions is reported. Based on the principle of the AHP (Analytical Hierarchy Process), a new method is proposed to evaluate the Current Soil Productivity(CSP) and Natural Soil Productivity(NSP). Calculated results indicated that the NSP of Robinia pseudoacacia in two villages was above the middle level, while the NSP of Prunus armeniacia var. ansu Pinus tabulaeformis Platycladus orientalis was low. CSP of the Robinia pseudoacacia and Prunus armeniacia var. ansu was higher than the other two tree species. Although the NSP of the 4 tree species in the two villages was similar, the CSP results of the 4 tree species showed a remarkable change in the two villages studied. Further analysis indicated that the attitude and the recognition of the local people concerning problem associated with hillside development play an important role for the success of the hillside development program