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基于半变异函数的环渤海地区NDVI空间格局特征研究
Authors
侯西勇
张勇
毋亭
Publication date
1 January 2014
Publisher
Abstract
基于环渤海地区1999—2009期间年尺度的NDVI序列数据和半变异函数分析方法,定量研究植被覆盖分布的空间格局特征及其时间变化特征,结论如下:1)辽宁省地形对植被分布的影响强于气候,植被分布整体的连续性最好;而在山东和京津冀区域,温度对植被覆盖空间格局的影响强于水分,且山东植被分布的斑块化最为显著;2)结构性因子对辽宁、京津冀、山东三个分区植被覆盖的影响作用占主导,但均呈减弱趋势;3)辽宁、京津冀、山东三个分区植被覆盖空间变异最小、空间连续性最大的方向分别为东北一西南(30°)、西北-东南(150°)和西北—东南(135°),该方向的差异体现了影响因子类型及其作用的差异性
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Last time updated on 24/06/2021