| 中国北方植被覆盖度特征及其与沙尘暴关系 |
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| 引用本文： | 张钛仁-,柴秀梅,李自珍.中国北方植被覆盖度特征及其与沙尘暴关系[J].高原气象,2010,29(1):137-145. |
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| 作者姓名： | 张钛仁- 柴秀梅 李自珍 |
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| 作者单位： | 1. 兰州大学干旱与草地生态教育部重点实验室；
2. 中国气象局， 北京100081；;3. 中国气象局气象探测中心， 北京100081 |
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| 基金项目： | 国家社会公益研究专项基金项目(2004DIB4J170)资助 |
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| 摘 要： | 采用气象观测数据和遥感数据,借助数据统计分析技术,对中国北方年、季植被覆盖度变化规律、植被覆盖度变化强度、植被覆盖度变化趋势和植被覆盖度对沙尘暴灾害的影响进行了分析。结果表明,中国北方地区的植被覆盖度总体上呈波动增加的趋势,波动范围为0.395～0.487,植被覆盖度上升趋势与沙尘暴日数下降趋势有着很好地对应关系;中国北方春季和夏季植被覆盖度变化具有随季节的不同,植被覆盖度变化强度表现出不同的空间分布特征,在春季植被覆盖度变化强度与植被覆盖度的空间分布有较好的一致性。尽管中国北方地区植被覆盖状况整体呈上升趋势,但在华北和西北的干旱半干旱区土地退化严重,荒漠化在加剧。
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| 关 键 词： | 中国北方 沙尘暴 植被覆盖度 |
Characteristics of Vegetation Coverage in Northern China and Its Relationship with Sandstorm |
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| ZHANG Tai-ren-,CHAI Xiu-mei,LI Zi-zhen.Characteristics of Vegetation Coverage in Northern China and Its Relationship with Sandstorm[J].Plateau Meteorology,2010,29(1):137-145. |
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| Authors: | ZHANG Tai-ren- CHAI Xiu-mei LI Zi-zhen |
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| Affiliation: | 1. The Key Laboratory of Education Ministry on Arid and Grassland Ecology;Lanzhou University;Lanzhou 730000;China;2. Meteorological Administration;Beijing 100081;3. Meteorological Observation Centre;China Meteorological Administration;China |
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| Abstract: | The variation laws,intensity,trend and its effect on sandstorm disasters of annual and seasonal vegetation coverage in northern China are analyzes using the meteorological observation data and remote sensing data with the help of the technique of statistical analysis. The results show that the vegetation coverage in northern China exhibits rising trend in fluctuation on the whole and the fluctuation ranges from 0.395 to 0.487 and the rising trend of vegetation coverage and the falling trend of sandstorm day... |
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| Keywords: | Northern China Sandstorm Vegetation coverage |
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