水源涵养服务； 植被类型； 凋落物； 土壤持水量； 赛罕乌拉自然保护区；内蒙古," /> 水源涵养服务； 植被类型； 凋落物； 土壤持水量； 赛罕乌拉自然保护区；内蒙古,"/> Water Conservation Services of Different Vegetation Types  in the Saihan Ulla National Nature Reserve
干旱区研究

›› 2014, Vol. 31 ›› Issue (3): 495-501.

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Water Conservation Services of Different Vegetation Types  in the Saihan Ulla National Nature Reserve

JIA Xiao-yan, WANG Xiao-jiang,NIU Jian-ming,ZHANG Wen-jun, LIU Yu-jun   

  1. 1. College of Life Sciences, Inner Mongolia University, Hohhot 010021, China;
    2. Forestry Bureau of Jingbian County, Jingbian 718500, Shaanxi, Province, China;
    3. Inner Mongolia Academy of Forestry Science, Hohhot 010010, China;
    4. SinoUS Center for Ecology, Energy and Sustainability Sciences in Inner Mongolia, Hohhot 010021, China
  • Received:2013-01-07 Revised:2013-01-28 Online:2014-05-15 Published:2014-05-30

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Abstract: We measured the physical properties of soil and litters and soil retention under seven main plant communities-[WTBX]Filifolium sibirica[WTBZ] grassland, [WTBX]Betula platyphylla[WTBZ] forest, [WTBX]Quercus mongolica[WTBZ] forest, [WTBX]Larix pricepisruprechtii[WTBZ] forest, [WTBX]Ostryopsis davidiana[WTBZ] forest, [WTBX]Prunus sibirica[WTBZ] forest, and farming in the Saihan Ulla National Nature Reserve to assess water conservation efficiency of these communities. Our results were summarized as follows: ① Soil physical properties were significantly different among the communities, and the water conserving capability of land with natural vegetation was higher than that with artificial vegetation. The average bulk density of topsoil (0－60 cm) was the highest in cropland but the lowest in [WTBX]Betula platyphylla[WTBZ] forest. The maximum soil retention was the highest in [WTBX]Betula platyphylla[WTBZ] forest but the lowest in [WTBX]Filifolium sibirica[WTBZ] grassland. The noncapillary capacity of soil was also the highest in [WTBX]Betula platyphylla[WTBZ] forest but the lowest in cropland; ② Water conservation potential of soil litters under plant communities growing on shady slope was higher than that on sunny slope. It was consistently the highest in [WTBX]Larix princepisruprechtii[WTBZ] forest; ③ Water conservation efficiency of soil and litters was different among plant communities, and it was the highest in [WTBX]Betula platyphylla[WTBZ] forest.  

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