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林业科学 ›› 2002, Vol. 38 ›› Issue (1): 8-14.doi: 10.11707/j.1001-7488.20020102

• 论文及研究报告 • 上一篇    下一篇

立地条件对青檀檀皮中矿质元素含量的影响

方升佐 李光友 洑香香   

  1. 南京林业大学,南京210037
  • 收稿日期:2001-01-05 修回日期:1900-01-01 出版日期:2002-01-25 发布日期:2002-01-25

EFFECTS OF SITE CONDITIONS ON MINERAL ELEMENT CONTENTS IN THE BARK OF WINGCELTIS (PTEROCELTIS TATARINOWII)

Fang Shengzuo,Li Guangyou,Fu Xiangxiang   

  1. Nanjing Forestry University Nanjing210037
  • Received:2001-01-05 Revised:1900-01-01 Online:2002-01-25 Published:2002-01-25

摘要:

以在安徽省境内调查的33块标准地资料为基础,探讨了成土母质对青檀檀皮中大量元素、微量元素含量的影响,土壤pH值对檀皮中矿质元素含量的影响以及青檀地上部分各组分矿质元素间的相互关系。结果表明:在砂岩发育土壤上生长的青檀人工林,其檀皮中N、P含量最高,檀皮中K含量以生长在石灰岩发育的土壤上最高,但在同一母岩发育的土壤上不同年龄段檀皮中N、P、K含量的大小为1a生>2a生>3a生。3a生檀皮中Ca、Mg含量均为生长在石灰岩发育的土壤上最高,其中Ca含量达17 3g·kg-1,分别是生长在千枚岩和板岩发育土壤上檀皮的1.48和1.68倍。随着萌条年龄增大,檀皮中含量逐渐提高,3a生檀皮中Ca含量约为1a生檀皮中的2倍。Cu、Zn元素以生长在石灰岩土壤上的檀皮中含量最高,Mo和B则以生长在板岩发育土壤上的檀皮中含量最高,而Mn元素是生长在千枚岩土壤上的檀皮中含量最高。土壤pH值对檀皮中矿质元素含量有较大影响,檀皮中Ca、Mg、B和Cu含量为碱性土(pH7.5~8.5)>中性土(pH6.5~7.5)>酸性土(pH5.5~6.5),Mo和Zn含量为中性土>碱性土>酸性土,Mn含量为酸性土>中性土>碱性土。青檀地上部分各组分矿质元素间的相互关系较为复杂,但檀皮中Ca、Mg含量与木质部中Ca、Mg含量呈明显正相关。

关键词: 青檀, 成土母岩, 土壤pH, 矿质元素含量

Abstract:

Based on the investigation of 33 plots in Anhui Province,the effect of soil-forming rock on macro-element and micro-element contents in the bark of wingceltis,the effect of soil pH values on the mineral element contents in the bark of wingceltis and the relationship between the mineral element contents in aboveground biomass components were studied.The results indicated that the highest N and P contents in the bark of wingceltis were achieved in the stand growing on the soil from sandstone,and the highest K content in the bark occurred in the stand growing on the soil from limestone.However,the N,P and K contents in the bark for different sprout age were in the order of age 1>age 2>age 3.Compared with other soil-forming rock,the Ca and Mg contents in the bark which grew on the soil from limestone were the highest,especially the Ca content reaching 17.3g·kg-1,which was 1.48 and 1.68 times of the soils from phyllite and slate respectively.With the increasing of sprout age,the Ca content in the bark increased,and the Ca content in the bark with 3-year-old sprout was 2 times of 1-year-old sprout.The highest Cu and Zn contents in the bark were also achieved in the stand growing on the soil from limestone,but the highest Mo and B contents in the bark took place in the stand growing on the soil from slate and the Mn content in the bark was the greatest in the stand growing on the soil from phyllite.Soil pH values have a remarkable impact on the mineral element contents in the bark of wingceltis.The Ca,Mg,B and Cu contents in the bark were in the order of alkaline soil(pH7.5~8.5)>neutral soil(pH6.5~7.5)>acid soil(pH5.5~6.5),Mo and Zn contents in the bark were neutral soil>alkaline soil>acid soil,and Mn content in the bark was acid soil>neutral soil>alkaline soil.The relationships between the mineral element contents in aboveground biomass components were complicated,however the Ca and Mg contents in the bark were highly correlated with the contents in the xylem.

Key words: Wingceltis, Soil-forming rock, Soil pH value, Mineral element content