兴安落叶松林下土壤中镍和钒元素含量分布规律的研究
首发时间:2008-07-03
摘要:本文通过对大兴安岭林区的原始林、渐伐林、原始湿地三种生态系统的季节性冻土中镍元素和钒元素含量以及影响其含量分布因素的研究,为了解大兴安岭林区兴安落叶松林(原始林、渐伐林)和原始湿地季节性冻土中的养分状况,以及元素含量对兴安落叶松生长发育的影响提供了基础资料。结论如下:①兴安落叶松林下土壤中镍和钒的含量变幅宽,离散度大,变异系数高。②镍元素和钒元素在土壤底层富集,向上含量逐渐减少。③三种生态系统镍元素含量由高到低的顺序为渐伐林,原始林和原始湿地;钒在原始林平均含量最高,其次为渐伐林,在原始湿地平均含量最低。④坡向和坡位对元素含量影响不显著。
For information in English, please click here
The Study on Contents of the Soil Ni and V in seasonal frozen soil of the Larix gmelini forest
Abstract:The content of Ni and V and the influencing of the factors of which in Seasonal frozen soil of the virgin forest, the successive cutting forest and the virgin wet land of the Great Xingan Mountain was studied. This study can provide the information that realize the status of nutrient and influence the growth of Larix Gmelinii. The results were as follows: ①The coefficient of variation of content of the total Ni and V is high in seasonal frozen earth in the Great Xingan Mountains. ②The content of Ni and V is high in the bottom of soil. ③The order of the content of Ni is the successive cutting forest, the virgin forest and. the virgin wet land. The order of the content of V is the virgin forest, the successive cutting forest and. the virgin wetland. ④The influence of the content of the Ni and V is not correlativity with the position of slope and the direction of slope.
Keywords: Larix gmelini forest;Seasonal frozen soil;forest soil
论文图表:
引用
No.2266427309012150****
同行评议
共计0人参与
勘误表
兴安落叶松林下土壤中镍和钒元素含量分布规律的研究
评论
全部评论