globalchange  > 气候变化事实与影响
CSCD记录号: CSCD:5332005
论文题名:
基于NOAA AVHRR 数据的京津冀地区植被覆盖的时空变化
其他题名: Temporal-spatial Variation of Vegetation Coverage Around Hebei Area Based on the NOAA AVHRR Data
作者: 王书冰1; 向亮2; 吴云龙1; 李静1
刊名: 中国农学通报
ISSN: 1000-6850
出版年: 2014
卷: 30, 期:34, 页码:133-139
语种: 中文
中文关键词: 京津冀 ; 归一化植被指数 ; 变化特征
英文关键词: Beijing-Tianjin-Hebei ; NDVI ; variation characteristics
WOS学科分类: PLANT SCIENCES
WOS研究方向: Plant Sciences
中文摘要: 本研究利用京津冀地区83个站点近29年(19822010年)归一化植被指数(NDVI)数据,研究京津冀地区植被覆盖的时空变化特征。采用气候倾向率、相关分析、经验正交函数EOF分解等方法,分别从月、季和年多个时间尺度以及空间变化尺度,详细分析了京津冀地区植被覆盖的基本特征,结果表明:(1)近29年京津冀地区植被覆盖整体呈微弱的增加趋势,年际波动较大;春季植被覆盖上升趋势最为明显,其次是秋季和冬季,夏季植被变化率与年变化相关性最强;46月为植被主要生长期,7月植被覆盖增长率最高,8月、10月和11月为弱的减少趋势。(2)整个研究区植被覆盖空间分布差异较大,其中河北南部、北京东北部的燕山附近区域植被覆盖最好(NDVI均值>0.4),低值区主要位于张家口北部,其中张家口的康保站年平均NDVI值为0.15,为研究区最低;EOF分析表明,整个研究区植被增加明显的区域为河北中南部,时间系数表明京津冀地区植被覆盖19821999年为增长期,20002002年有所减少,20032010年有明显增加。
英文摘要: Based on normalized difference vegetation index (NDVI) data of 83 sites in the Beijing-Tianjin- Hebei Region during recent 29 years (1982-2010), temporal and spatial variations of vegetation cover of the Beijing- Tianjin- Hebei region were studied. The climate tendency rate, correlation analysis, empirical orthogonal function EOF decomposition methods were taken to analyze the basic characteristics of vegetation coverage of the Beijing-Tianjin-Hebei Region from the month, season and year time scale and spatial scale, a detailed analysis. The results showed that : (1) in recent 29 years, vegetation coverage of the Beijing-Tianjin- Hebei Region had a slight increase in the overall trend with heavy inter-annual fluctuations; spring vegetation coverage increased most obviously, followed by that of autumn and winter, summer vegetation change rate and the annual variation had the strongest correlation; vegetation growth period of vegetation coverage were mainly from April to June, the highest growth rate occurred in July, August, October and November had decreasing trends; (2) vegetation distribution of the entire research area had great differences, southern Hebei and northeastern Beijing along Yanshan mountain had the best vegetation coverage (NDVI mean>0.4), low value area are mainly located in northern Zhangjiakou, which Zhangjiakou Kangbao station, its annual average NDVI value was 0.15, the lowest in the study area; EOF analysis showed that, the whole Research area vegetation increased significantly in the region of southern Hebei, the time coefficient showed that vegetation in Beijing-Tianjin-Hebei region increased during 1982-1999, decreased during 2000-2002 and increased signif? icantly during 2003-2010.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/156495
Appears in Collections:气候变化事实与影响

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作者单位: 1.河北省辛集市气象局, 辛集, 河北 052360, 中国
2.河北省气象局, 石家庄, 河北 050000, 中国

Recommended Citation:
王书冰,向亮,吴云龙,等. 基于NOAA AVHRR 数据的京津冀地区植被覆盖的时空变化[J]. 中国农学通报,2014-01-01,30(34):133-139
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