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[1]FU Yu-hong,HUANG Zong-sheng,YU Li-fei,et al.Effect of the Underground Root Habitat on Soil Microbial Biomass in Karst Areas[J].Research of Soil and Water Conservation,2012,19(04):91-95,100.

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Effect of the Underground Root Habitat on Soil Microbial Biomass in Karst Areas

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 04 Page number: 91-95,100 Column: Public date: 2012-08-20

Title:: Effect of the Underground Root Habitat on Soil Microbial Biomass in Karst Areas

Author(s):: FU Yu-hong^1,2, HUANG Zong-sheng¹, YU Li-fei¹, YANG Rui¹; 1. College of Forestry, Guizhou University, Guiyang 550025, China;
2. Guizhou Normal College, Guiyang 550018, China

Keywords:: soil microbial biomass; underground root habitat; karst rocky desertification area

CLC:: S154.3

DOI:: -

Abstract:: This research took three different soils in the typical root underground habitats in karst areas as the examples (TypeⅠ-dolomite level occurrence multilayer space types, Type Ⅱ-dolomite tilt occurrence multilayer space types and Type Ⅲ-dolomite vertical occurrence multilayer space types). The effect of the different types and different level on soil microbial biomass, the changes of the soil nutrient contents and soil enzyme activity were analyzed. The results showed: (1) the effect of the different plant root underground habitats and different spatial soil levels on soil microbial biomass was extremely significant(p<0.01); (2) soil microbial biomasses in three types were extremely significant different(p<0.01), it decreased with the decrease of soil level, the microbial environment of typeⅠwas poor, TypeⅡ was better, and Type Ⅲ was between the former two; (3) type Ⅰ could promote carbon cycle to a certain extent, type Ⅱ benefit was conducive to organic carbon cycle, Type Ⅲ was good for phosphorus supply and the oxidation of organic matter. The objectives of this research, are to explore the underground root habitat and its soil conditions, and provide the basis for evaluation of the soil fertility under the same conditions, and the research for vegetation restoration.

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