文章摘要
刘西刚, 王勇辉, 焦黎.夏尔希里自然保护区典型植被土壤水源涵养功能探究[J].水土保持学报,2019,33(3):121~128
夏尔希里自然保护区典型植被土壤水源涵养功能探究
Study on Soil Water Conservation Function Under Typical Vegetation in Xarxili Nature Reserve
投稿时间:2018-12-22  
DOI:10.13870/j.cnki.stbcxb.2019.03.019
中文关键词: 夏尔希里自然保护区  草地区  灌木区  森林区  土壤  水源涵养
英文关键词: Xarxili Nature Reserve  grassland  shrubland  forest land  soil  water conservation
基金项目:国家自然科学基金项目(41261055)
作者单位E-mail
刘西刚1,2, 王勇辉1,2, 焦黎1,2 1. 新疆维吾尔自治区干旱区湖泊环境与资源重点实验室, 乌鲁木齐 830054

2. 新疆师范大学地理科学与旅游学院
, 乌鲁木齐 830054 
wyhsd_3011@163.com 
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中文摘要:
      为了探究夏尔希里自然保护区不同植被类型土壤水源涵养功能特征,在保护区内选取具有代表性的草地、灌木、森林样地共13个,以不同植被类型的土壤为试验材料,采用野外调查与室内试验相结合的方法,分别对保护区内的草地区、灌木区、森林区的土壤水源涵养能力进行定量分析。结果表明:(1)随着土层深度的增加,研究区草地土壤容重逐渐增大,在土壤层0—10 cm处出现最小值为0.69 g/cm3。草地土壤持水能力和蓄水能力变化规律一致,均表现为0—10 cm > 10—20 cm > 20—30 cm。(2)随着土层深度的增加,灌木土壤容重变化差异较大,变化范围为0.98~1.63 g/cm3,最小值出现在土壤层0—10 cm处。各水源涵养能力指标含量在不同的土层深度上差异性显著(P<0.05),灌木持水能力大体表现为0—10 cm > 10—20 cm > 20—30 cm > 30—40 cm > 40—50 cm,蓄水能力随着土层深度的增加,呈现先增加后减小的趋势。(3)森林土壤水文物理性质和土壤水源涵养指标之间存在显著性差异(P<0.05),随着土层深度的增加,土壤容重逐渐增大,在土层0—10 cm处出现最小值为0.45 g/cm3。森林土壤持水能力主要以0—10,20—30,40—50 cm为主,占总持水量的71.6%,蓄水量在水源涵养功能中占比较小。
英文摘要:
      In order to explore the characteristics of soil water conservation function of different vegetation types in the Xarxili Nature Reserve, a total of 13 representative grassland, shrub and forest plots were selected in the reserve area, and soils of different vegetation types were used as experimental materials. Soil water conservation capacity of grassland, shrub and forest was quantitatively analyzed by a combination of field investigation and laboratory tests. The results showed that:(1) With the increasing of soil depth, the soil bulk density of the grassland increased gradually, and the minimum value was 0.69 g/cm3 at 0-10 cm soil layer. The changes of soil water holding capacity and water storage capacity of grassland were consistent, which followed the order of 0-10 cm > 10-20 cm > 20-30 cm. (2) With the increasing of soil depth, the variation of soil bulk density of shrub was quite different, ranging from 0.98 to 1.63 g/cm3, and the minimum value appeared at 0-10 cm soil layer. The water conservation capacity index contents were significantly different in different soil depths (P<0.05), and the water holding capacity of shrub was generally listed in the order of 0-10 cm > 10-20 cm > 20-30 cm>30-40 cm > 40-50 cm, and the water capacity increased first and then decreased with the increasing of soil depth. (3) There was a significant difference between the hydrophysical properties of forest soil and soil water conservation index (P<0.05). With the increasing of soil depth, the soil bulk density increased gradually, and the minimum value was 0.45 g/cm3 at 0-10 cm soil layer. The water holding capacity of forest soil was mainly 0-10, 20-30 and 40-50 cm, accounting for 71.6% of the total water holding capacity, the water storage capacity was relatively small in the water conservation function.
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