| 2008年南方特大冰雪冻害对森林损毁的NDVI响应分析——以江西省中部山区林地为例 |
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| 引用本文： | 赵志平,邵全琴,黄麟.2008年南方特大冰雪冻害对森林损毁的NDVI响应分析——以江西省中部山区林地为例[J].地球信息科学,2009,11(4):535-540. |
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| 作者姓名： | 赵志平 邵全琴 黄麟 |
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| 作者单位： | 1. 中国科学院地理科学与资源研究所, 北京 100101;
2. 中国科学院研究生院, 北京 100039 |
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| 基金项目： | 中德国际科技合作项目(2006DFB91920);;国家科技支撑项目(2006BAC08B00);;国家重点基础研究发展计划项目(2002CB412500) |
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| 摘 要： | 通过对江西省井冈-吉泰-于山样带,在2008年初冰雪冻害中,森林损毁的调查,获得调查样点563个,以及每个样点的NDVI。依据各样点林分起源、林龄、树种和林地折损程度信息,对NDVI进行分类,发现林地NDVI均值与折损程度呈显著的线性相关关系。天然林在无折损程度下,NDVI均值比人工林和次生林高,但随着折损程度增加天然林NDVI均值下降幅度相对较大,人工林NDVI均值下降幅度较小。幼龄林、中龄林和成熟林在无折损程度下NDVI均值差距不大,随着折损程度增加,幼龄林NDVI均值下降幅度最大,其次,为中龄林、成熟林NDVI均值下降幅度最小。针阔混交林、杉木、竹林和湿地松,在无折损时NDVI均值较高,马尾松最低。随着折损程度增加,阔叶林NDVI均值下降速率最快,马尾松、湿地松、杉木和针阔混交林NDVI均值下降速率较快,竹林NDVI均值下降速率较慢,针叶混合林NDVI均值下降速率最慢。
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| 关 键 词： | 冰雪冻害 森林 江西 NDVI |
| 收稿时间： | 2008-08-01; |
Response of NDVI to Forest Damages Caused by the Severe Snow and Ice Chaos in the South of China, 2008 A Case Study of Mountainous Forest in Central Jiangxi Province |
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| ZHAO Zhiping,SHAO Quanqin,HUANG Lin.Response of NDVI to Forest Damages Caused by the Severe Snow and Ice Chaos in the South of China, 2008 A Case Study of Mountainous Forest in Central Jiangxi Province[J].Geo-information Science,2009,11(4):535-540. |
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| Authors: | ZHAO Zhiping SHAO Quanqin HUANG Lin |
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| Institution: | 1. Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China;
2. Graduate University of Chinese Academy of Sciences,Beijing 100039,China |
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| Abstract: | Based on the field investigation of forest damages caused by the Severe Snow and Ice Chaos of early 2008 in Jinggang-Jitai-Yushan Transect,Jiangxi Province,we obtained Geographic and ecologic information of 563 survey points.The day-by-day precipitation and daily average temperature from January to February of 6 meteorological sites in the study area from 2000 to 2008 were selected to analyze the characteristics of the Severe Snow and Ice Chaos of the South of China,2008.Under the influence of the Severe Sn... |
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| Keywords: | snow and ice damage forest Jiangxi Province NDVI |
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