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Volume 37 Issue 4
Aug.  2018
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HE Beibei, SHEN Youxin, ZHU Xi’ai, LIU Zhiyong. Comparison of spatiotemporal variations of soil moisture in rock desertification and secondary forest areas of Shilin, Yunnan[J]. CARSOLOGICA SINICA, 2018, 37(4): 555-561. doi: 10.11932/karst20180409
Citation: HE Beibei, SHEN Youxin, ZHU Xi’ai, LIU Zhiyong. Comparison of spatiotemporal variations of soil moisture in rock desertification and secondary forest areas of Shilin, Yunnan[J]. CARSOLOGICA SINICA, 2018, 37(4): 555-561. doi: 10.11932/karst20180409

Comparison of spatiotemporal variations of soil moisture in rock desertification and secondary forest areas of Shilin, Yunnan

doi: 10.11932/karst20180409
  • Publish Date: 2018-08-25
  • Soil moisture is key to vegetation development and ecological restoration. The temporal and spatial variations of soil moisture are mainly affected by rainfall and vegetation, which is particularly significant in karst areas. The PR2 sensor was used to measure the Soil Moisture Content (SMC) of two typical soils at the depth of 0-1,000 mm on a monthly basis, with the case in the Rock Desertification Ecosystem (RDE) and Secondary Forest Ecosystem (SFE) in Shinlin,Yunan Province, China. The results show that the SMC of the RDE is significantly higher than that of the SFE during the study period, which is completely different from non-karst regions. The SMCs of both monitoring sites show considerably monthly difference, which fluctuates along with monthly weather and rainfall. Furthermore, the SMC increases with the depth at a soil profile; and it increases the most at the depth from 400 to 600 mm. Below 600 mm deep, the SMC gradually declines.

     

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