Effects of different vegetation types on soil microbiological properties on the Loess Plateau
The re-establishment of natural species-rich health lands on abandoned farmland is one of the main measures in soil erosion control in the Loess Plateau of China. This study was conducted to understand how enzyme activities changed with nutritional properties and microbial biomass in different vegetation types in the loessial gully region of the Loess Plateau. Soil samples were collected in different vegetations which had planted for almost 30 years. For the collected soils, nutritional, microbial and enzymatic properties were determined. The result showed that soil nutritional properties and microbial biomass were enhanced in black locust-amorpha, compared with black locust, but weakened in Chinese pine amorpha compared with Chinese pine. Besides, soil urease, α-amylase, alkaline phosphatase, catalase, saccharase and cellulase activities in creased with restoration, but decreased polyphenol oxidase. Moreover, urease activity was obviously high in korshinsk peashrub and black locust for the nitrogen fixation of them, and α-amylase was high in Chinese pine for low pH value. However, there still was a certain gap to Chinese arborvitae which was considered to be the climax community in the region. In general, the distance of vegetations to Chinese arborvitae was grassland > black Iocust > Chinese pine> korshinsk peashrub > Chinese pine-amorpha > black locust-amorpha.
Loess Plateau vegetation-soil effects vegetation types soil enzyme
Bing Wang GuoBin Liu Sha Xue
Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources
国际会议
西安
英文
398-402
2010-10-11（万方平台首次上网日期，不代表论文的发表时间）