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Volume 37 Issue 5
Oct.  2018
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Article Navigation >  CARSOLOGICA SINICA  > 2018  >  37(5): 708-713
ZHANG Xianqiang, LIU Tianlei, CONG Chunlei. Study on soil conservation and pedogenic function of five bryophytes in the karst areas of Guizhou Province[J]. CARSOLOGICA SINICA, 2018, 37(5): 708-713. doi: 10.11932/karst2018y18
Citation: ZHANG Xianqiang, LIU Tianlei, CONG Chunlei. Study on soil conservation and pedogenic function of five bryophytes in the karst areas of Guizhou Province[J]. CARSOLOGICA SINICA, 2018, 37(5): 708-713. doi: 10.11932/karst2018y18
shu

Study on soil conservation and pedogenic function of five bryophytes in the karst areas of Guizhou Province

doi: 10.11932/karst2018y18
  • 1.

    Guizhou Police College, Guiyang,Guizhou 550005, China/Anshun University, Anshun,Guizhou 560000, China

  • 2.

    Guizhou Police College, Guiyang,Guizhou 550005, China

  • Publish Date: 2018-10-25
    Abstract
  • Soil and water conservation effects of five bryophytic plants, including Erythrodontium julaceum, Barbula unguiculata, Bryum argenteum, Eurohypnum leptothollum and Racomitrium japonicum were investigated in the karst areas in Puding city of Guizhou province. The results showed that: (1)The average pedogenic rate ranged from 45.0% to 842.8%, with the highest of 842.8% for Erythrodontium julaceum and the lowest of 45.0% for Bryum argenteum. (2)The trend of soil formation amount is basically consistent with the trend of soil formation rate; the highest soil formation amount was 1,970.5 g·m-2 for Erythrodontium julaceum, and the lowest was 14.85g·m-2 for Bryum argenteum.(3)The bryophyte layer has a remarkable effect on improving soil erosion resistance, and it increases with the increase of the thickness of the bryophytic layer, and decreases with the increase of the slope. When the slope is less than or equal to 20 degrees, and bryophyte layer thickness is larger than 2.5cm ,the soil loss can be controlled effectively. Therefore, the epilithic bryophytes showed a remarkable effect on pedogenesis, which is significant for landscape diversity and soil and water conservation in karst rocky desertification area.

     

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