华北落叶松人工林不同造林密度土壤理化性质分析  

Analysis of Physical and Chemical Soil Properties of Larch Plantations With Different Afforestation Densities in North China

作　　者：冯倩倩[1,2] 铁英 周梅 向昌林[4] 乌艺恒 FENG Qianqian;TIE Ying;ZHOU Mei;XIANG Changlin;WU Yiheng(College of Forestry of Inner Mongolia Agricultural University,Hohhot 010019,Inner Mongolia,China;Inner Mongolia Saihanwula National Research Station of Forest Ecosystem,Chifeng 025150,Inner Mongolia,China;Inner Mongolia Hesheng Ecological Science and Technology Rresearch Iinstitute Co.,Ltd.,Hohhot 011517,Inner Mongolia,China;Saihanwula National Nature Reserve Administration of Inner Mongolia,Chifeng 025150,Inner Mongolia,China)

机构地区：[1]内蒙古农业大学,呼和浩特010019 [2]内蒙古赛罕乌拉森林生态系统国家定位研究站,内蒙古赤峰025150 [3]内蒙古和盛生态科技研究院有限公司,呼和浩特011517 [4]内蒙古赛罕乌拉国家级自然保护区管理局,内蒙古赤峰025150

出　　处：《林业资源管理》2018年第6期106-110,共5页Forest Resources Management

摘　　要：在内蒙古农业大学和内蒙古和盛生态科技研究有限公司合作建立的赤峰赛罕乌拉综合防护林示范基地,以不同造林密度(1 407,1 675,2 680株/hm2)的华北落叶松人工林为研究对象,分别设置3块标准地,对土壤进行分层采样,室内测定土壤理化性质。结果表明:不同造林密度华北落叶松人工林的土壤理化性质均有显著差异。造林密度为1 407株/hm2时,土壤容重最小(0. 97),总孔隙度(62. 6%)及含水量(14. 75%)最大。有机质的积累过程较慢,无显著改变,但表层土壤全N (110. 06g/kg)、有效P (0. 57g/kg)、有效K (29. 11g/kg)含量均在造林密度为1 407株/hm2时最高。In the Chifeng Saihanwula Integrated Shelter Forest Demonstration Base established by Inner Mongolia Agricultural University and Inner Mongolia Hesheng Ecological Science and Technology Researcher Co.,Ltd.,the Larch plantations with different stand densities(1 407,1 675,2 680 plants/hm 2)were taken as the research object.Three standard plots each were set up the soil stratified,and the physical and chemical properties of the soil measured indoors.The results showed that the soil physical and chemical properties of Larix principis-rupprechtii plantations with different afforestation densities were significantly different.When the stand density was 1 407 plants/hm 2,the soil bulk density was the smallest(0.97),the total porosity(62.6%) and the water content(14.75%) were the largest.The accumulation process of organic matter was slow and there was no significant change,However,the contents of total N(110.06g/kg),effective P(0.57g/kg)and effective K(29.11g/kg)in the topsoil were highest at the stand density of 1407 plants/hm^2.

关 键 词：华北落叶松 人工林 林分密度 土壤理化性质 森林生长 

分 类 号：S714.2[农业科学—林学]