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基于MODIS卫星火点数据的浙江省林火时空动态变化特征

曾爱聪 郭新彬 郑文霞 魏帽 靳全锋 郭福涛

曾爱聪, 郭新彬, 郑文霞, 魏帽, 靳全锋, 郭福涛. 基于MODIS卫星火点数据的浙江省林火时空动态变化特征[J]. 北京林业大学学报, 2020, 42(11): 39-46. doi: 10.12171/j.1000-1522.20190483
引用本文: 曾爱聪, 郭新彬, 郑文霞, 魏帽, 靳全锋, 郭福涛. 基于MODIS卫星火点数据的浙江省林火时空动态变化特征[J]. 北京林业大学学报, 2020, 42(11): 39-46. doi: 10.12171/j.1000-1522.20190483
Zeng Aicong, Guo Xinbin, Zheng Wenxia, Wei Mao, Jin Quanfeng, Guo Futao. Temporal and spatial dynamic characteristics of forest fire in Zhejiang Province of eastern China based on MODIS satellite hot spot data[J]. Journal of Beijing Forestry University, 2020, 42(11): 39-46. doi: 10.12171/j.1000-1522.20190483
Citation: Zeng Aicong, Guo Xinbin, Zheng Wenxia, Wei Mao, Jin Quanfeng, Guo Futao. Temporal and spatial dynamic characteristics of forest fire in Zhejiang Province of eastern China based on MODIS satellite hot spot data[J]. Journal of Beijing Forestry University, 2020, 42(11): 39-46. doi: 10.12171/j.1000-1522.20190483

基于MODIS卫星火点数据的浙江省林火时空动态变化特征

doi: 10.12171/j.1000-1522.20190483
基金项目: 国家重点研发计划重点专项(2018YFE0207800),国家自然科学基金项目(31770697)
详细信息
    作者简介:

    曾爱聪。主要研究方向:林火预测。Email:fjzac13655014632@126.com 地址:350002 福建省福州市仓山区建新镇上下店路15号福建农林大学林学院

    责任作者:

    郭福涛,副教授,博士生导师。主要研究方向:林火预测与林火生态。Email:guofutao@126.com 地址:同上

  • 中图分类号: S762.2

Temporal and spatial dynamic characteristics of forest fire in Zhejiang Province of eastern China based on MODIS satellite hot spot data

  • 摘要:   目的  研究森林火灾时空动态变化特征,有助于掌握森林火灾发生规律及变化趋势,为火险期划分和防火资源的合理分配提供科学依据。  方法  本研究基于MODIS卫星火点数据,运用数据统计、Mann-Kendall趋势检验法和滑动t检验,对浙江省2001—2016年森林火灾时空分布特征、变化趋势和防火期的变化进行研究。  结果  (1)2001—2016年浙江省森林火灾整体呈上升趋势,春季、夏季和冬季是林火发生主要季节。其中春、夏两季森林火灾显著增长,秋、冬两季森林火灾呈先上升后下降的变化趋势。浙江省传统定义火险期的林火数量呈下降趋势,而更多的林火在夏季发生,火险期由11月至翌年4月变为1月19日至9月1日,向夏季偏移和延长。(2)浙江省森林火灾空间分布呈现出由西南向东北递减趋势,其中杭州市、衢州市、丽水市和温州市森林火灾发生频率较高,且在防火期、春季和夏季呈上升趋势。  结论  研究建议浙江省加强西南地区及春、夏两季森林火灾监测和防火宣传,适当调整火险期和防火资源时空分配,将有助于抑制浙江省森林火灾的增长趋势。

     

  • 图  1  研究区域

    Figure  1.  Study area

    图  2  全年和防火期森林火灾次数

    Figure  2.  Time number of forest fire in fire prevention period and entire year

    图  3  全年和防火期森林火灾变化趋势图

    UF. 标准正态分布线;UB. 反序列的标准正态分布线; z. 标准正态分布统计值;下同。UF, standard normal distribution line; UB, standard normal distribution line of the inverse sequence; z, standard normal distribution statistics; The same below.

    Figure  3.  Trend of forest fire in fire prevention period and entire year

    图  4  防火期森林火灾t检验

    t. t检验统计值; 下同。 t, t test statistics;The same below.

    Figure  4.  t test for forest fire in fire prevention period

    图  5  四季森林火灾数量

    Figure  5.  Time number of forest fire in four seasons

    图  6  四季森林火灾变化趋势

    Figure  6.  Trend of forest fire in four seasons

    图  7  秋季和冬季森林火灾t检验

    Figure  7.  t test for forest fire in autumn and winter

    图  8  火险期变化图

    Figure  8.  Change chart of fire season

    图  9  浙江省各地区森林火灾次数和变化趋势图

    Figure  9.  Time number and changing trend chart of forest fire in each district of Zhejiang Province

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出版历程
  • 收稿日期:  2019-12-31
  • 修回日期:  2020-02-28
  • 网络出版日期:  2020-11-17
  • 刊出日期:  2020-12-14

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