基于Mann-Kendall方法的胶东半岛海岸带归一化植被指数趋势分析  

The analysis of NDVI trends in the coastal zone based on Mann-Kendall test:a case in the Jiaodong Peninsula

作　　者：刘亚龙[1] 王庆[1] 毕景芝[1] 张明明[1] 邢前国[2] 施平[2] 

机构地区：[1]鲁东大学海岸研究所,山东烟台264025 [2]中国科学院烟台海岸带研究所,山东烟台264003

出　　处：《海洋学报》2010年第3期79-87,共9页

基　　金：山东省自然科学基金重点项目(Z2008E03;Z2003E01);烟台市科技攻关项目(2008323);山东省高等学校科技计划项目(J09LE07);山东省科技项目(2007GG2QT06019);教育部重点项目(210122)

摘　　要：利用1998—2008年SPOT/VEGETATION逐旬共372期归一化植被指数时间序列影像数据,引入Mann-Kendall非参数趋势检验方法,分析了胶东半岛最近10 a来的归一化植被指数变化趋势。结果表明,最近10 a来,胶东半岛归一化植被指数变化趋势以衰减区域居主导地位,其中有明显衰减变化趋势的区域占半岛总面积的19.3%,有明显增强变化趋势的区域仅占半岛总面积的2.8%。归一化植被指数衰减区域在空间上沿海岸线呈环状分布,从沿海岸到远离海岸,归一化植被指数增强趋势逐渐明显,衰减最明显的区域大部分位于半岛沿海30 km以内,植被增强趋势最明显区域位于半岛中部山地及沿海防护林地区。人类活动及其空间分布是归一化植被指数变化的主要因素,其中沿海城市化、工业化和海岸湿地开发利用程度的提高导致归一化植被指数衰减,而山地植被保护和海岸防护林建设导致归一化植被指数增强。On the basis of 372 images of Spot/Vegetation from 1998 to 2008,the Mann-Kendall non-parametric trend test method was used to analyze the normalized difference vegetation in dex（NDVI） trends on the Jiaodong Penisula.During past decade,the areas with decreasing NDVI trends dominated the Jiaodong Peninsula.About 19.3% of the whole area exhibited significant declining trends in the NDVI,and merely 2.8% of areas showed increasing trends.The areas with decreasing trends distributed annularly along the coastline.The increasing trends gradually became more prominent from the coastline to the inner land.Most regions which manifested distinct weakening trends were mainly located within a distance of 30 km apart from the coastline.The regions showing obvious improvement were located in the central peninsula and the coastal forest shelterbelt areas.Human activity and its spatial distribution were the main causes of NDVI changes.Urbanization,industrialization and exploitation of the coastal wetlands resulted in the decaying of NDVI.Protection of the mountain vegetation and the construction of the coastal forest shelterbelt promoted the increasing of NDVI.

关 键 词：归一化植被指数 时间序列 Mann-Kendall趋势分析 海岸带 胶东半岛 

分 类 号：Q948.156[生物学—植物学]