Soil Enzyme Activity and Its Correlation with Soil Physical and Chemical Properties in Suburban Forests in Changsha City
Investigations were earned out on activities of soil urease, catalase, acid phosphatase, and cellulolytic enzyme in soils under five different forest stands in suburban forests in Changsha City, i. e. mixed forest of Pinus massoniana, mixed forest of Cunninghamia lanceolata, and three pure forests of Cinnamomum campliora, Liquidamba formosana Hance, and Pinus elliotti, and their relationships with soil physical and chemical properties. Results showed that the bulk density of all the stands was on the high side, while their soil aeration was good. Except for soil organic matter at moderate level, the other soil chemical indices were all at low or very low level. The activities of soil urease, catalase, acid phosphatase, and cellulolytic enzyme of the mixed forest of C. lanceolata were the strongest, while the enzyme activity of pure forest of L formosana was the lowest. Correlation analysis indicated that four soil enzymes had negative correlations with pH to different extents,and there was a significant negative relationship between cellulolytic enzyme and pH. However, four enzymes had significant or highly significant correlations with other chemical properties. Therefore, the four soil enzymes are the perfect indicators for soil quality assessment.
Suburban forestsSoil enzymesSoil physical and chemical propertiesCorrelationsChangsha
NETL
NSTL
万方数据
维普
