阜新地区油松林土壤养分空间差异分析  

Spatial Variance Analysis of Soil Nutrients in Pinus tabulaeformis in Fuxin Region

作　　者：田明芳 Tian Mingfang(State-owned Forestry Science and Technology Demonstration Forest Farm,Fuxin Mongolian Autonomous County ,Liaoning Province,Fuxin 123100,China)

机构地区：[1]辽宁省国有阜新蒙古族自治县林业科技示范林场,辽宁阜新123100

出　　处：《防护林科技》2018年第1期60-61,共2页Protection Forest Science and Technology

摘　　要：为明确辽西阜新地区油松林土壤养分的空间差异,以35年生油松纯林为研究对象,采集了不同坡位及坡向的土壤,并对土壤中的各养分指标进行了测定分析,结果表明:不同坡位供试土壤中所有检测营养成分均以坡下位置含量最高,其中除速效K以外,有机C、全N、速效N、速效P的含量顺序均依次为坡下>坡中>坡上;不同坡向所有检测营养成分均以阴坡含量最高,半阴坡含量次之,其中有机C、全N、速效P含量次序均为阴坡>半阴坡>阳坡>半阳坡,速效N和速效K含量次序为阴坡>半阴坡>半阳坡>阳坡。In order to clarify the spatial differences of soil nutrients in Pinus tabulaeformis forest in Fuxin area,western Liaoning Province,taking35-year-old pure forest of Pinus tabulaeformis as objects,the soil samples at different slope position and slope were collected,soil nutrient indicators were measured and analyzed.Result shows that from the slope position,all the tested nutrients below the slope have the highest contents,except for available K,the order of content for organic C,total N,available N&available P is below the slope>slope>above the slope.From the aspect of slope,the content of nutrients in all the detected nutrients are the highest in the shady slope and the lowest in the semi-shady slope,N and available P content in the order of shady slope>semi-shady slope>sunny slope>semi-sunny slope.The order of available N&available K content is shady slope>semi-shady slope>semi-sunny slope>sunny slope.f

关 键 词：油松林 土壤养分 坡位 坡向 

分 类 号：S791.254[农业科学—林木遗传育种]