Study on Rhizosphere Soil Enzyme Activities of Different Vegetation Types in the Limestone Area of Guizhou Province

Rhizosphere and non-rhizosphere soil enzyme activities of different vegetation types were studied in the Limestone Area.The result showed that the soil enzyme activities of the rhizosphere and non-rhizosphere were remarkable,rhizosphere soil enzyme activities were obviously stronger than non-rhizosphere soil enzyme activities in the same enzyme vegetation.Soil enzyme activities mainly presented two kinds of tendencies: the activities of soil amylase and soil sucrose were the korean pine and broad-leaved mixed forest shrubbery coniferous forest meadow in rhizosphere and non-rhizosphere soil area,the activities of soil catalase and urease were the korean pine and broad-leaved mixed forest coniferous forest shrubbery meadow in rhizosphere and non-rhizosphere soil area.The main factors of the rhizosphere soil nutrient contents were more than the main factors of the non-rhizosphere soil nutrient contents,rhizosphere effect of soil enzyme and the main soil nutrient contents was significant,there were significant correlation between soil enzyme activities and the main factors of soil nutrient contents,while no significant correlation was found between soil enzyme activities and soil pH.