[1]张宇佳,袁金国*,张 莎.2002—2011年河北省植被LAI时空变化特征[J].南京林业大学学报(自然科学版),2015,39(01):086-92.[doi:10.3969/j.issn.1000-2006.2015.01.016]
 ZHANG Yujia,YUAN Jinguo*,ZHANG Sha.Spatial-temporal change of leaf area index(LAI)of vegetations in Hebei Province from 2002 to 2011[J].Journal of Nanjing Forestry University(Natural Science Edition),2015,39(01):086-92.[doi:10.3969/j.issn.1000-2006.2015.01.016]
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2002—2011年河北省植被LAI时空变化特征
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
39
期数:
2015年01期
页码:
086-92
栏目:
研究论文
出版日期:
2015-01-30

文章信息/Info

Title:
Spatial-temporal change of leaf area index(LAI)of vegetations in Hebei Province from 2002 to 2011
文章编号:
1000-2006(2015)01-0086-07
作者:
张宇佳袁金国*张 莎
河北师范大学资源与环境科学学院,河北省环境演变与生态建设省级重点实验室,河北 石家庄 050024
Author(s):
ZHANG Yujia YUAN Jinguo* ZHANG Sha
Hebei Provincial Key Laboratory of Environmental Change and Ecological Construction, College of Resource and Environmental Sciences, Hebei Normal University, Shijiazhuang 050024, China
关键词:
MODIS数据 叶面积指数(LAI) 时空变化 河北省
Keywords:
MODIS data leaf area index(LAI) temporal and spatial change Hebei province
分类号:
S711; TP79
DOI:
10.3969/j.issn.1000-2006.2015.01.016
文献标志码:
A
摘要:
利用2002—2011年EOS/MODIS数据的植被指数产品MOD15A2和植被类型产品MCD12Q1及气象观测资料,对比分析了7种典型植被的叶面积指数(LAI)的变化趋势,探讨了河北省植被生长季(5—10月)LAI的时空变化特征及其与气温和降水等影响因子的关系。结果表明:河北省植被生长季年均LAI变化在1.0~1.3之间,2008年最高(1.286),2002年最低(1.066); 多年平均 LAI的空间分布表现为位于东北部的承德地区最高(可达5.0以上),位于西北部的张家口地区最低(小于0.5); 7种典型植被生长季年均LAI差异很大,LAI从高到低依次为阔叶林(2.765)、混交林(2.535)、灌丛(1.867)、稀树草原(1.476)、针叶林(1.331)、农田(1.116)和草原(0.967)。显著影响LAI变化的因子有降水、气温、地形、植被类型及其物候期等,且各因子对植被LAI的影响程度不同。
Abstract:
The vegetation index product MOD15A2 and vegetation type product MCD12Q1 of EOS/MODIS data and meteorological data were used in this study. LAI of seven typical vegetation types were compared,and spatial temporal change of LAI in growing seasons in Hebei province from 2002 to 2011 was explored by using linear regression analysis and correlation analysis methods. The relationship between LAI, air temperature and precipitation were also analyzed. The results showed that the annual average LAI values in growing seasons(from May to October)were 1.0-1.3, the highest was 1.286 in 2008, and the lowest was 1.066 in 2002. As for spatial distribution, LAI in Chengde region in the northeast was the highest, which reached more than 5.0, and LAI in Zhangjiakou region in the northwest was the lowest, which reached less than 0.5. The annual average LAI of seven typical vegetation types in growing seasons were very different, and LAI from high to low could be broadleaf forest(2.765), mixed forest(2.535), shrub(1.867), savanna(1.476), coniferous forest(1.331), farmland(1.116)and grassland(0.967). The significant factors influencing LAI were precipitation, air temperature, topography, vegetation types and phenology, and the impact of each factor on vegetation LAI was different.

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备注/Memo

备注/Memo:
收稿日期:2013-12-15 修回日期:2014-03-15
基金项目:河北省自然科学基金项目(D2012205084); 河北师范大学重点基金项目(L2009Z08); 河北省自然地理学省级重点学科建设项目
第一作者:张宇佳,硕士生。*通信作者:袁金国,副教授。E-mail:yuanjinguo8@163.com。
引文格式:张宇佳,袁金国,张莎. 2002—2011年河北省植被LAI时空变化特征[J]. 南京林业大学学报:自然科学版,2015,39(1):86-92.
更新日期/Last Update: 2015-01-31