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内蒙古吉兰泰地区的天然梭梭林人为破坏严重,其生境的主要特征为干旱性强,年平均降水量104.7mm,旱年占33%,且全年降水量的92%为日降水量小于5mm的无效降水。地貌类型简单,平缓沙地,沙丘、低洼地交错分布,土壤以风沙土为主,其下有粘土间层,梭梭根系发达,垂直根可深达地下水湿润区,水平根幅在100m_2以上,亦多层分布。平缓沙地和沙丘是梭梭林的适宜生境,因人为破坏情况不同,经聚类划分为5种基本类型,它们反应了梭梭林不同受害强度。
The natural Haloxylon forest in the Jilantai area of Inner Mongolia is seriously damaged. Its habitat is characterized by aridity, the annual average rainfall is 104.7mm, the dry year is 33%, and the annual precipitation is 92% of the daily precipitation Invalid rainfall less than 5mm. Geomorphic types are simple, flat sand, dune and low-lying land staggered distribution. The soil is mainly sandy soil with interbedded clayey soil. The root system of Haloxylon ammodendron is developed. The vertical roots can reach the moist area of groundwater with the horizontal root of more than 100m 2. Also multi-layer distribution. The flat sand and dune are the suitable habitats for Haloxylon ammodendron. According to the different man-made damage, the five basic types are classified by cluster, which reflect the different damage intensity of Haloxylon ammodendron.