黄土沟壑采煤沉陷区经济树种生长特征分析  

Analysis on Growth Characteristics of Economic Tree Species in Coal Mining Subsidence Area of Loess Gully

作　　者：高琴 党晓宏 高岩 郭跃 徐立杰 GAO Qin;DANG Xiao-hong;GAO Yan;GUO Yue;XU Li-jie(College of Desert Science and Engineering,Inner Mongolia Agricultural University,Hohhot 010011,China;Hanggin Desert Ecosystem Positioning Research Station,Inner Mongolia,Ordos 017400,China;Ordos Forestry and Grassland Development Center,Inner Mongolia,Ordos 017000,China)

机构地区：[1]内蒙古农业大学沙漠治理学院,内蒙古呼和浩特010011 [2]内蒙古杭锦荒漠生态系统国家定位观测研究站,内蒙古鄂尔多斯017400 [3]鄂尔多斯市林业和草原事业发展中心,内蒙古鄂尔多斯017000

出　　处：《内蒙古林业科技》2022年第3期27-31,共5页Journal of Inner Mongolia Forestry Science and Technology

基　　金：鄂尔多斯市科技重大专项“鄂尔多斯采煤沉陷区植被修复与营建技术研究”(2022EEDSKJZDZX020-2)。

摘　　要：本研究以布尔台采煤沉陷区3 a生的沙枣、苹果、李、杏、西府海棠5种经济树种为研究对象,测量株高、冠幅、胸径,并结合成活率分析各树种长势,以研究区生长状况良好的樟子松为参考树种,进行灰色关联分析,分析研究区各树种的生长特征和适宜性。结果表明:(1)沙枣对当地环境适应性差,其保存率仅为50.6%。(2)李的胸径增长状况显著优于其他树种,为57.3%,杏和西府海棠增长率接近40%,沙枣和苹果增长率接近25%。(3)研究区树种灰色关联系数由大到小依次为:李(0.83)、杏(0.76)、西府海棠(0.71)、苹果(0.68)、沙枣(0.64)。Taking 3-year-old Elaeagnus angustifolia,Malus pumila,Prunus salicina,Prunus armeniaca and Malus×micromalus planted in Burtai coal mining subsidence area as research objects,the plant height,crown width and DBH were measured,the growth vigor of each tree species was analyzed combined with the survival rate.Pinus sylvestris var.mongolica with good growth conditions in the studying area was taken as the reference tree species,the gray correlation analysis was carried out to analyze the growth characteristics and suitability of each tree species.The results showed:(1)The adaptability of Elaeagnus angustifolia to local environment was poor,and its preservation rate was only 50.6%.(2)The DBH growth of Prunus salicina was significantly higher than that of other tree species,and its growth rate was 57.3%.The growth rate of Prunus armeniaca and Malus×micromalus was closed to 40%and that of Elaeagnus angustifolia and Malus pumila was closed to 25%.(3)In the studying area,the order of grey correlation coefficients for five tree species was as follows:Prunus salicina(0.83)>Prunus armeniaca(0.76)>Malus×micromalus(0.71)>Malus pumila(0.68)>Elaeagnus angustifolia(0.64).

关 键 词：采煤沉陷区 经济树种 生长特征 灰色关联分析 

分 类 号：S727.3[农业科学—林木遗传育种]