基于Landsat影像的北京植被覆盖度变化趋势分析
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王曦,张怡雯
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An Analysis of Change Trend of Fractional Vegetation Cover in Beijing based on Landsat Imagery
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Xi Wang,Yiwen Zhang
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表1 植被覆盖度窗口均值呈显著（p-value＜0.05）上升/下降趋势的面积比重
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Table 1 Proportion of significant （p-value＜0.05） increasing / decreasing trends of moving window mean value of FVC
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| 7×7窗口 | 11×11窗口 | 21×21窗口 | 31×31窗口 | 41×41窗口 |
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| 北京全市 | 17.33%/6.05% | 17.43%/6.77% | 16.14%/8.09% | 14.92%/9.02% | 13.94%/9.71% | | 东城区 | 38.06%/0.67% | 42.49%/0.33% | 49.38%/0.01% | 56.03%/0.00% | 63.98%/0.00% | | 西城区 | 37.40%/0.51% | 43.13%/0.23% | 53.34%/0.06% | 59.39%/0.00% | 63.22%/0.00% | | 朝阳区 | 4.92%/16.24% | 4.72%/19.03% | 4.55%/24.50% | 4.48%/28.71% | 4.29%/31.48% | | 丰台区 | 5.42%/12.14% | 4.57%/13.59% | 3.06%/16.02% | 2.20%/17.84% | 1.55%/19.88% | | 石景山区 | 10.23%/7.08% | 7.11%/7.98% | 2.33%/10.29% | 0.97%/12.07% | 0.25%/12.31% | | 海淀区 | 9.40%/9.74% | 8.78%/11.31% | 7.87%/13.36% | 7.46%/14.50% | 7.30%/15.86% | | 门头沟区 | 18.42%/0.73% | 16.81%/0.79% | 12.57%/1.01% | 9.36%/1.12% | 7.16%/1.17% | | 房山区 | 10.53%/6.56% | 8.44%/7.46% | 5.42%/9.05% | 4.08%/10.04% | 3.27%/10.65% | | 通州区 | 0.94%/17.80% | 0.61%/20.85% | 0.26%/27.46% | 0.11%/32.72% | 0.08%/36.71% | | 顺义区 | 3.42%/15.49% | 3.10%/18.08% | 2.70%/22.95% | 2.54%/26.15% | 2.48%/28.47% | | 昌平区 | 14.71%/5.47% | 13.56%/6.07% | 9.78%/6.97% | 6.97%/7.46% | 5.12%/7.79% | | 大兴区 | 1.78%/14.90% | 1.52%/16.45% | 1.09%/19.78% | 0.96%/22.21% | 0.85%/23.81% | | 怀柔区 | 31.38%/1.94% | 33.79%/2.03% | 34.48%/2.01% | 33.90%/1.93% | 33.39%/1.93% | | 平谷区 | 18.13%/5.63% | 18.48%/5.66% | 15.91%/5.16% | 12.85%/4.59% | 10.25%/4.21% | | 密云区 | 25.23%/1.90% | 26.01%/1.71% | 24.93%/1.29% | 23.80%/1.08% | 22.48%/1.00% | | 延庆区 | 29.43%/0.55% | 31.21%/0.47% | 31.71%/0.41% | 30.69%/0.35% | 29.54%/0.34% |
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