| 水土保持措施对土壤化学特性的影响 |
| |
| 引用本文： | 康玲玲,王云璋,刘雪,常玮,王晓星,贾西安,黄治江. 水土保持措施对土壤化学特性的影响[J]. 水土保持通报, 2003, 23(1): 46-48 |
| |
| 作者姓名： | 康玲玲 王云璋 刘雪 常玮 王晓星 贾西安 黄治江 |
| |
| 作者单位： | 西北大学,秦岭生物多样性研究中心,陕西,西安,710069 |
| |
| 基金项目： | 西北大学科研基金资助(99NW51) |
| |
| 摘 要： | 用物种多样性指数〔Shannon—wienner指数、Margalef’s指数、Simpson’s Doversity(l／Dominance)指数〕和均匀度指数(Evenness均匀度)和物种丰富度，对陕北黄土高原5种主要天然森林群落(油松林、山杨林、辽东栎林、白桦林、侧柏林)物种多样性进行了分析。结果表明，陕北黄土高原5种森林群落中山杨林物种多样性最高。植物生长型与物种多样性的关系表现为草本层的物种丰富度、多样性程度大于灌木层，灌木层大于乔木层；草本层均匀度与灌木层相差不明显，但二者显著大于乔木层。
|
| 关 键 词： | 陕北 黄土高原 森林群落 物种多样性 植被 |
| 文章编号： | 1000-288X(2003)01-0039-03 |
| 收稿时间： | 2002-08-26 |
Effect of Soil and Water Conservation Measures on Soil Chemical Properties |
| |
| Affiliation: | The Institute of Hydraulic Research,the Yellow River Conservancy Commission, Zhengzhou 450003, China;The Institute of Hydraulic Research,the Yellow River Conservancy Commission, Zhengzhou 450003, China;The People's Government of Gouzhao Town at Zhongyuan District in Zhengzhou City, Zhengzhou, 450066, China;The World Bank's Loan Project Office of Soil and Water Conservation on the Loess Plateau, Xi'an 710043, China.;The World Bank's Loan Project Office of Soil and Water Conservation on the Loess Plateau, Xi'an 710043, China.;The World Bank's Loan Project Office of Soil and Water Conservation on the Loess Plateau, Xi'an 710043, China.;The World Bank's Loan Project Office of Soil and Water Conservation on the Loess Plateau, Xi'an 710043, China. |
| |
| Abstract: | By analyzing the changes of soil nutrients,pH and cation exchange capacity(CEC)on the loess plateau after implement of the World Bank's Loan Project on soil and water conservation,the effect of soil and water conservation measures on soil chemical properties is studied.The results show that soil nutrients didn't change wth time on cultivated sloping lands and wild grass lands,but soil nutrients on lands with measures of soil and water conservation increased with time,the contents of soil nutrients are higher,pH changed to neutrality and CEC increased. |
| |
| Keywords: | loess plateau species diversity vegetation forest |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《水土保持通报》浏览原始摘要信息 |
|
点击此处可从《水土保持通报》下载全文 |
|
