| 森林植被变化对水文过程和径流的影响效应 |
| |
| 引用本文： | 石培礼,李文华.森林植被变化对水文过程和径流的影响效应[J].自然资源学报,2001,16(5):481-487. |
| |
| 作者姓名： | 石培礼 李文华 |
| |
| 作者单位： | 中国科学院地理科学与资源研究所, 北京 100101 |
| |
| 基金项目： | 中国科学院地理科学与资源研究所知识创新工程所长基金项目(SJIOG-C00-01)资助. |
| |
| 摘 要： | 森林植被变化对水分分配和河川径流具有调节作用。对我国森林植被变化水文效应文献的综合分析表明：森林砍伐或火灾引起森林覆盖度下降会导致林冠截留率、凋落物对降水截留能力和蓄水能力、土壤的渗透和蓄水能力降低。不同地区森林植被变化对径流的影响幅度相差较大，但比较一致的结论是：除长江中上游外，森林砍伐会降低植被层的蒸发散，增加河川径流；反之，会减少河川径流量。森林火灾会导致林木蒸发散减少，河川径流增加。
|
| 关 键 词： | 森林砍伐 森林火灾 水文过程 河川径流 |
| 文章编号： | 1000-3037(2001)05-0481-07 |
| 收稿时间： | 2001-03-23 |
| 修稿时间： | 2001年3月23日 |
Influence of forest cover change on hydrological process and watershed runoff |
| |
| SHI Pei li,LI Wen hua.Influence of forest cover change on hydrological process and watershed runoff[J].Journal of Natural Resources,2001,16(5):481-487. |
| |
| Authors: | SHI Pei li LI Wen hua |
| |
| Institution: | Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101 |
| |
| Abstract: | Forest cover change plays an important role in regulating water distribution in forest and watershed runoff．Literature review and analysis of the influence of forest cover change on hydrological process and runoff showed that deforestation or forest fire can reduce the capabilities of rainfall interception in canopythroughfall interception and water conservation in litter layer and soil infiltration and water storage．The influence of forest cover change on watershed runoff presented diverse patterns in different regions．Howevera primary conclusion can be reached is that deforestation will reduce forest transpiration and enhance runoff except the Yangtze River showed a contradictory case． With similar effect forest fire will reduce vegetation transpiration and increase watershed runoff． |
| |
| Keywords: | deforestation forest fire hydrological process runoff |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《自然资源学报》浏览原始摘要信息 |
| 点击此处可从《自然资源学报》下载免费的PDF全文 |
