不同母岩发育山核桃林地土壤性质及叶片营养元素分析  

Nutrient elements in soil and Carya cathayensis leaves from four parent rock materials

作　　者：陈世权[1] 黄坚钦[2] 黄兴召[2] 楼中[3] 吕健全[2] 夏国华[2] 吴家森[2] 

机构地区：[1]南京林业大学森林资源与环境学院,江苏南京210037 [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：《浙江林学院学报》2010年第4期572-578,共7页Journal of Zhejiang Forestry College

基　　金：科学技术部农业科技成果转化资金项目(2006GB2C200113);农业部测土配方施肥项目(浙财农字2008-89号);浙江省科学技术重点计划项目(2007C12023);浙江省杭州市科技计划项目(20080632B63)

摘　　要：为了解不同母岩发育山核桃Carya cathayensis林地土壤性质及叶片营养的差异,于2008年7月采集和分析了板岩、花岗岩、千枚岩和砂页岩等4种母岩发育的土壤和山核桃植株叶片。结果表明,花岗岩发育的土壤酸碱度最低(pH4.72),有机质(43.11g·kg-1)和有效硫(38.73mg·kg-1)质量分数最高,交换性钙(5.22mg·kg-1)和有效锌(1.65mg·kg-1)质量分数最低;而有效磷(7.29mg·kg-1),有效铁(31.24mg·kg-1)和有效锰(67.49mg·kg-1)质量分数则以千枚岩发育的土壤为最高;山核桃叶片中各营养元素质量分数的大小顺序表现为氮>钙>钾>镁>磷>锰>铁>锌;花岗岩发育的土壤上的山核桃叶片氮、钙、镁、锌质量分数最高,磷、铁质量分数最低;不同母岩发育山核桃林地土壤pH值、有机质与多个大中微量元素有效养分之间存在显著或极显著相关关系。叶片氮、钾、钙、镁、铁与土壤多种养分质量分数之间存在一定的相关性。To reveal changes in soil properties and leaf nutrition from different parent rock material in a Carya cathayensis forest in Lin’an City, soil and leaf samples developed from four types of parent rock material： i.e. slate, granite, phyllite, and sandy shale, were collected in July of 2008 and analyzed with a correlation analysis. Results showed soil sampled from the granite parent material had the highest organic matter （43.11 g·kg-1） and available sulfur （38.73 mg·kg-1）; however, it had the lowest pH （4.72）, available calcium （Ca,5.22 mg·kg-1）, and available zinc （Zn,1.65 mg·kg-1）. Soil sampled from the phyllite parent material had the highest available phosphorus （P,7.29 mg·kg-1）, iron （Fe,31.24 mg·kg-1）, and manganese （Mn,67.49 mg·kg-1）. Available nutrient elements in C. cathayensis leaves for all soils were in the order： nitrogen （N）Capotassium（K）MgPMnFeZn. Additionally, leaves growing on soil developed from phyllite parent material had the highest available N, Ca, Mg, and Zn, but the lowest available P and Fe. The correlation analysis was also significant for soil pH, soil organic matter, andavailable nutrients. Correlations for N, K, Ca, Mg, and Fe content in leaves as well as content of soil nutrient element were also significant.

关 键 词：森林土壤学 山核桃 母岩 土壤性质 叶片营养 相关性 

分 类 号：S714.8[农业科学—林学]