1991—2021年雄安新区土地利用与植被覆盖变化遥感研究
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崔囤月, 王世东, 张学军
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A remote sensing-based study on change in land use and vegetation cover in Xiong’an New Area from 1991 to 2021
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CUI Dunyue, WANG Shidong, ZHANG Xuejun
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表4 1991—2021年雄安新区植被覆盖变化趋势
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Tab.4 Change trend of vegetation cover in Xiong’An New Area from 1991 to 2021
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植被覆盖
变化等级 | 1991—2001 | 2001—2011 | 2011—2017 | 2017—2021 | | 面积/km2 | 比重/% | 面积/km2 | 比重/% | 面积/km2 | 比重/% | 面积/km2 | 比重/% | | 严重退化 | 296.51 | 19.53 | 41.82 | 2.76 | 47.31 | 3.12 | 34.09 | 2.24 | | 轻度退化 | 297.97 | 19.62 | 432.42 | 28.51 | 356.11 | 23.47 | 322.31 | 21.20 | | 保持稳定 | 469.80 | 30.94 | 514.69 | 33.93 | 392.30 | 25.86 | 503.03 | 33.09 | | 轻度改善 | 350.21 | 23.06 | 426.07 | 28.09 | 405.72 | 26.74 | 404.48 | 26.60 | | 明显改善 | 104.03 | 6.85 | 101.89 | 6.71 | 315.58 | 20.81 | 256.46 | 16.87 |
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