[1]JIA Shao-hua,ZHANG Zhao-hui.Diversity of the Bryophytes and Their Roles in Soil and Water Conservation in Karst City Rocky Desertification[J].Research of Soil and Water Conservation,2014,21(02):100-105.
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Diversity of the Bryophytes and Their Roles in Soil and Water Conservation in Karst City Rocky Desertification
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 02
Page number:
100-105
Column:
Public date:
2014-04-28
- Title:
- Diversity of the Bryophytes and Their Roles in Soil and Water Conservation in Karst City Rocky Desertification
- Keywords:
- karst rocky desertification; bryophytes; diversity indices; abundance indices; soil and water conservation
- CLC:
- Q948;Q949.35
- DOI:
- -
- Abstract:
- Karst city rocky desertification phenomenon has been one of the important ecological and environmental problems in southwest karst areas of China. This study took Guiyang City as an example to explore the bryophyte diversity and its function of soil and water conservation in typical city rocky desertification area. The results showed that 45 taxa belonging to 23 genera and 11 families were reported in the study area. Liverworts and hornwort were not found. The diversity of bryophyte habitat and life-form are simple. The species diversity is low, and it has a close relationship with human activities, rocky desertification degree and the living environment. The regularity of three dominant moss soil quantity and maximum water-holding capacity is in the sequence of Didymodon fallax(387.35 g/m2, 1 899.53 g/m2) > Erythrodontium julaceum(164.35 g/m2, 1 398.3 g/m2) > Bryum tuberosum(111.45 g/m2, 684.42 g/m2). Three mosses have high ability to absorb and reserve water. Besides, they have great effect on pedogenesis, and have potential significance for vegetation restoration. Therefore, they can be used as dominant plant for vegetation restoration in karst rocky desertification area. And they also can be used to prevent water and soil erosion in karst rocky desertification area.
- References:
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