不同垂直地带山核桃林地土壤理化性质比较  

Comparison on Soil Physical and Chemical Properties at Different Vertical Zones of Carya cathayensis Stands

作　　者：黄兴召[1] 黄坚钦[1,2] 陈丁红[3] 吕健全[2] 吴家森[2] 

机构地区：[1]浙江农林大学亚热带森林培育重点实验室,浙江临安311300 [2]浙江农林大学林业与生物技术学院,浙江临安311300 [3]浙江省临安市农业技术推广中心,浙江临安311300

出　　处：《浙江林业科技》2010年第6期23-27,共5页Journal of Zhejiang Forestry Science and Technology

基　　金：科学技术部农业科技成果转化项目"特色经济树种新品种选育及高效技术产业化中试与示范"(2006GB2C200113);浙江省科学技术重点计划项目"山核桃新品种选育及生态经营关键技术研究与示范"(2007C12023)

摘　　要：为比较不同垂直地带山核桃（Carya cathayensis）林地土壤理化性质,采集了临安市山核桃产区海拔200-800 m的土壤样品,并分析其主要理化性质。结果表明,不同海拔之间林地土壤容重差异不显著,非毛管持水量呈显著性差异;土壤石砾含量随海拔的升高而递增,平均值为10.90%,而土壤砂粒、粉粒和粘粒含量无明显差异;随着海拔升高,土壤pH值由6.08降低至4.71,土壤有机质含量由28.09 g/kg递增至47.59 g/kg;林地土壤水解氮、速效钾、有效磷、有效硫含量平均值为198.08、105.00、4.98、25.97 mg/kg,不同海拔之间无变化规律;山核桃林地土壤微量元素含量的大小顺序为锰〉铁〉钙〉镁〉锌〉铜〉硼,但在不同海拔之间无明显的变化规律。Soil samples from Carya cathayensis stand at elevation of 200-800 in Lin＇an city,Zhejiang province were collected and analyzed for soil physical and chemical properties.The results showed that soil bulk density had no significant differences,but non-capillary water holding capacity had great difference between different altitudes.Gravel content in the soil increased with the rise of altitude with the mean value of 10.90%,while sand,silt and clay in the soil had no evident difference.With increase of the elevation,pH value decreased from 6.08 to 4.71,and the content of organic matter in the soil increased from 28.09 g/kg to 47.59 g/kg.The mean hydrolysis nitrogen,potassium,availability phosphorus and sulfur were 198.08mg/kg,105.00mg/kg,4.98 mg/kg,25.97 mg/kg,and it had no regulation of change between different altitudes.The content of trace elements in the stands were as follows： Mn Fe Ca Mg Zn Cu B,and there was no clear correlation between different altitudes.

关 键 词：山核桃 土壤 理化性质 比较 

分 类 号：S714.2[农业科学—林学]