不同年份毛竹营养元素的空间分布及与土壤养分的关系

编号 zgly0000361725

文献类型 期刊论文

文献题名 不同年份毛竹营养元素的空间分布及与土壤养分的关系

学科分类 220.1040;森林土壤学

作者 吴家森  周国模  徐秋芳  杨芳 

作者单位 浙江林学院生命科学学院 

母体文献 林业科学 

年卷期 2005,41(3)

页码 171-173

年份 2005 

分类号 S714.8 

关键词 毛竹  营养元素  土壤养分  相关分析  大小年 

文摘内容 The concentrations of N, P, K, Ca and Mg in different organs of PhyUostachys pubescens with in sequence of age and the amount of soil nutrients were analyzed. The results showed that the content of four nutrition elements(N, P, Ca, Mg) in different organs were in the order as: leaf > branch > stem; while for K: leaf > stem > branch. The abundance of differentelements in leaf, in branch and in stem respectively ranged as : N > K > Mg > P > Ca, K > N > Mg > P > Ca and K > N > Mg >Ca > P. The nutrition elements in various organs of P. pubescens were interrelated one another at some extent, significant( P <0.05) or great significant correlation ( P < 0.01 )existed between eleven pairs nutrient elements contents out of total thirty pairs of nutrient elements. The productivity of the woods in on-year was much higher than that in off-year, while the content of N, P and K in leaf was much higher in off-year. The nutrition in bamboo were generally correlated to nutrients of soils, eg, nitrogencontent in leaf had a significant relationship with organic matter, total nitrogen, available nitrogen and available potassium insoil, phosphorus content in leaf had a strong relationship with organic matter and available nitrogen in soil, however, only good relationships in stem were found between nitrogen content and organic matter, available potassium in soil. Potassium content in branch were negatively correlated to organic matter, total nitrogen and available nitrogen in soil。