| 天水小陇山锐齿栎群落土壤全N分布特征及与生物多样性关系研究 |
| |
| 引用本文： | 张俊华,王胜利,巨天珍,南忠仁.天水小陇山锐齿栎群落土壤全N分布特征及与生物多样性关系研究[J].干旱区资源与环境,2004(Z2). |
| |
| 作者姓名： | 张俊华 王胜利 巨天珍 南忠仁 |
| |
| 作者单位： | 西部环境教育部重点实验室兰州大学资源环境学院 730000西北师范大学地理与环境科学学院730070
(张俊华)，西部环境教育部重点实验室兰州大学资源环境学院 730000
(王胜利)，西北师范大学地理与环境科学学院 730070
(巨天珍)，西部环境教育部重点实验室兰州大学资源环境学院 730000(南忠仁) |
| |
| 基金项目： | 兰州大学人才引进基金，西北师范大学科技创新项目 (NWNU -KJCXGC -0 2 -2 0 )资助 |
| |
| 摘 要： | 对天水小陇山锐齿栎群落不同演替阶段土壤全N含量进行了分析 ,探讨了土壤全N与群落生物多样性之间的关系 ,结果表明 :随发育阶段土壤全N含量呈稳定的变化趋势。发育中期 ,随多样性指数、均匀度指数、优势度指数的增加 ,全N含量呈“V”型变化趋势 ,随丰富度指数增加 ,全N含量呈逐渐减小趋势 ;发育后期 ,随着多样性指数、丰富度指数、优势度指数的增加 ,全N呈逐渐增加趋势 ,随着均匀度的增加 ,全N变化不明显 ;发育末期 ,多样性指数、均匀度指数、优势度指数趋于稳定 ,土壤全N含量不稳定 ,随丰富度指数的升高 ,全N有先升高后降低的趋势。
|
| 关 键 词： | 小陇山 锐齿栎群落 全N 生物多样性 |
The Distribution of Soil Total Nitrogen and Its Correlation to the Plant Species Diversity in the Forest of Xiaolong Mountain of Tianshui, Gansu Province |
| |
| ZHANG Jun-hua,WANG Sheng-li,JU Tian-zhen,NAN Zhong-ren.The Distribution of Soil Total Nitrogen and Its Correlation to the Plant Species Diversity in the Forest of Xiaolong Mountain of Tianshui, Gansu Province[J].Journal of Arid Land Resources and Environment,2004(Z2). |
| |
| Authors: | ZHANG Jun-hua WANG Sheng-li JU Tian-zhen NAN Zhong-ren |
| |
| Institution: | ZHANG Jun-hua 2 WANG Sheng-li 1 JU Tian-zhen 2 NAN Zhong-ren 1 |
| |
| Abstract: | This article determined the contents of the soil total Nitrogen of Sharptooth oak at different successional stage of community in Xiaolong Mountain and and discussed the correlation between the soil total Nitrogenand community bio-diversity. The result showed that in development stage, total nitrogen present the steady variation tendency. In middle development period, with the increase of variety indices, evenness indices, dominance indices, the total Nitrogen presents the variation tendency of V type. With the increase of richness indices, the total Nitrogen reduced gradually. In development later phase, with the increase of variety indices, richness indices and dominance indices, the total Nitrogen increased gradually. With the increase of the evenness indices, the total Nitrogen don't change obviously. In development latter period, the tendency of variety indices, evenness indices and dominance indices is steady, but total nitrogen change obviously. With the increase of richness indices, total nitrogen presents the tendency of the opposite V type. |
| |
| Keywords: | Xiaolong mountain sharptooth oak community total nitrogen bio-diversity |
| 本文献已被 CNKI 等数据库收录！ |
|
