黄河玛曲砾质网状河段河间湿地形态特征及发育程度
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刘博一, 王随继
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Planform characteristics and developing level of interchannel wetlands in a gravel-bed anastomosing river, Maqu Reach of the Upper Yellow River
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Boyi LIU, Suiji WANG
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表6 不同大小河间湿地群体的发育程度特征参数 |
Tab. 6 Developing level parameters of interchannel wetland clusters with different sizes |
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面积(hm2) | 河间湿地面积占比P (%) | | 岸线密度Dl (km/km2) | | 分汊点密度Dn (个/km2) | 均值 | 最小 | 最大 | | 均值 | 最小 | 最大 | | 均值 | 最小 | 最大 | < 10 | 33.25 | | | | 12.66 | | | | 46.47 | | | 10~50 | 48.40 | 37.56 | 66.02 | | 14.65 | 13.12 | 15.67 | | 38.60 | 24.49 | 54.29 | 50~100 | 62.31 | 50.52 | 78.33 | | 13.31 | 8.37 | 18.04 | | 41.14 | 9.91 | 66.08 | 100~200 | 72.17 | 55.55 | 83.21 | | 11.33 | 9.86 | 13.75 | | 21.49 | 13.43 | 31.47 | 200~500 | 74.46 | 71.27 | 78.85 | | 9.27 | 6.04 | 11.48 | | 16.33 | 6.26 | 20.84 | > 500 | 79.18 | 79.12 | 79.24 | | 9.43 | 8.30 | 10.57 | | 18.18 | 15.12 | 21.25 |
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