人为干扰对绿洲胡杨种群特征和水肥条件的影响  

Effects of Human Disturbance on the Population Characteristics and Water and Fertilizer Conditions of Oasis Populus Euphratica

作　　者：高安岭 王文娟 邓如军 石多仁 苏龙嘎 高婷婷 李景文[2] GAO Anling;WANG Wenjuan;DENG Rujun;SHI Duoren;SU Longga;GAO Tingting;LI Jingwen(Ejina Forestry Bureau,Ejina Banner 735400,Inner Mongolia,China;The College of Beijing Forestry University,Beijing 100083,China)

机构地区：[1]内蒙古额济纳旗林业局,内蒙古额济纳旗735400 [2]北京林业大学林学院,北京100083

出　　处：《内蒙古林业调查设计》2019年第2期44-48,31,共6页Inner Mongolia Forestry Investigation and Design

基　　金：国家自然科学基金项目(31570610);林业公益性科研专项(201404304-6)资助

摘　　要：额济纳胡杨林保护区是我国西北干旱区的一道强大生态防线。近年来,受地下水动态变化的影响,胡杨林开始严重退化,而最近的调查结果表明,大量的农业活动和频繁的放牧在不断侵扰着胡杨林的生态环境,不仅对胡杨林生境的水分与养分条件产生了重要的影响,更导致了胡杨密度、胸径等种群特征产生较大的差异,强烈的人为干扰活动长期得不到有效控制,必然会加剧胡杨种群更新与维持的困难。建议尽快开展控制放牧与农业活动等相应保护措施。Ejina Populus National Nature Reserve is a powerful ecological defense line in the arid region of northwest China. In recent years, due to the dynamic changes of groundwater, Populus euphratica forest began to seriously degrade. Recent survey results show that a large number of agricultural and frequent grazing activities destroy the ecological environment of Populus euphratica forest, which had important influence on the populus euphratica population characteristics and its water and fertilizer conditions, and led to the differences in some population characteristics such as distribution density, DBH and so on. If strong human disturbance activities can not be effectively controlled, it will inevitably aggravate the difficulty of its population renewal and maintenance. It is suggested to carry out the corresponding protective measures such as controlling grazing and agricultural activities as soon as possible.

关 键 词：胡杨林保护区 人为干扰 种群特征 水肥条件 保护 

分 类 号：S729.119[农业科学—林木遗传育种]