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| 黄河中游砒砂岩地区长川流域植被盖度及其动态分析 | |
| 引用本文： | 许红梅,高清竹,江源,赵云龙.黄河中游砒砂岩地区长川流域植被盖度及其动态分析[J].中国沙漠,2005,25(6):880-885. |
| 作者姓名： | 许红梅 高清竹 江源 赵云龙 |
| 作者单位： | 1. 国家气候中心/中国气象局气候研究开放实验室,北京,100081 2. 中国农业科学院,农业环境与可持续发展研究所,北京,100081 3. 北京师范大学,资源研究所,北京,100875 |
| 基金项目： | 国家自然科学基金项目(40401009)，国家重点基础研究发展规划项目(G2000018604)资助 |
| 摘 要： | 应用遥感监测并结合地面实测数据,分析黄河中游砒砂岩地区典型流域———内蒙古长川流域植被盖度及其变化特征。经野外实测数据进行检验植被盖度遥感监测的精度发现,以遥感手段通过植被盖度与归一化植被指数(NDVI)之间关系来估算长川流域植被盖度的精度达到81.3%。长川流域上游地区(北部)植被盖度相对较高,达到40%~70%;沟道两侧也有相对较高的植被盖度,也达到了30%~60%;一般梁峁地植被盖度较低,只有5%~15%。从1983年开始实施的小流域第一期水土流失重点治理和1993年至1997年期间实施的小流域第二期第一阶段水土流失重点治理的效果明显,使得长川流域植被盖度在该期间内大幅度增高。 |
| 关 键 词： | 黄河中游砒砂岩地区 植被盖度 动态 遥感监测 |
| 文章编号： | 1000-694X（2005）06-0880-06 |
| 收稿时间： | 2004-06-15 |
| 修稿时间： | 2005-04-15 |
Vegetation Coverage and Its Dynamics in Changchuan Watershed on Soft Rock Area of Middle Yellow River, Inner Mongolia |
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| XU Hong-mei,GAO Qing-zhu,JIANG Yuan,ZHAO Yun-long.Vegetation Coverage and Its Dynamics in Changchuan Watershed on Soft Rock Area of Middle Yellow River, Inner Mongolia[J].Journal of Desert Research,2005,25(6):880-885. | |
| Authors: | XU Hong-mei GAO Qing-zhu JIANG Yuan ZHAO Yun-long |
| Institution: | 1.National Climate Center and Open Laboratory for Climate Studies of China Meteorological Administration, Beijing 100081, China, 2. Institute oJ Agricultural Environment and Sustainable Development, Chinese Academy of Agricultural Sciences, Beijing 100081, China;3. Institute of Resources Science, Beijing Normal University, Beijing 100875, China |
| Abstract: | The Changchuan watershed in Inner Mongolia belongs to the typical region in the soft rock area of middle Yellow River.This paper has revealed the dynamics of vegetation coverage by the remote sensing technique integrated with ground measurement.The preliminary results are as follows: The remote sensing technique is an effective survey method for the spatial-temporal vegetation coverage analysis in macro-scale;With verifying by ground measurement data,the precision of remote sensing technique can reach 81.3%;The vegetation coverage in upriver Changchuan watershed is relatively high,on both sides of channels vegetation coverage is also comparatively high,but the vegetation coverage on water-incised hill is generally low.During the period from 1976 to 2000,the vegetation coverage in the watershed was significantly improved through integrated measures of soil erosion control. |
| Keywords: | vegetation coverage dynamic remote sensing monitoring soft rock area of middle Yellow River |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |