河西走廊酒泉绿洲农田防护林格局与结构
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吕王亦庄, 赵文智
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The structure and pattern of farmland shelterbelts in Jiuquan Oasis of Hexi Corridor
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Wangyizhuang Lv, Wenzhi Zhao
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表2 实地调查统计结果
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Table 2 Statistical results of field survey
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样地序号 | 平均胸径/cm | 平均树高/m | 带斑比/% | 疏透度 |
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1 | 20.4±1.76 | 15.7±1.27 | 7.72 | 0.78 | 2 | 19.7±0.90 | 16.9±0.26 | 1.93 | 0.56 | 3 | 23.8±1.83 | 20.4±0.55 | 4.09 | 0.88 | 4 | 45.5±3.67 | 15.0±0.90 | 2.31 | 0.85 | 5 | 26.9±1.10 | 13.3±1.53 | 5.71 | 0.82 | 6 | 22.0±1.17 | 17.6±1.64 | 3.70 | 0.53 | 7 | 19.2±0.78 | 20.9±0.58 | 11.42 | 0.24 | 8 | 25.8±1.97 | 20.2±0.84 | 3.61 | 0.77 | 9 | 24.3±1.06 | 20.4±0.64 | 5.48 | 0.44 | 10 | 21.8±1.51 | 17.2±1.95 | 2.57 | 0.69 | 11 | 30.8±0.97 | 20.1±0.53 | 4.31 | 0.62 | 12 | 24.3±0.51 | 21.3±1.00 | 3.81 | 0.76 | 13 | 31.7±1.29 | 21.9±0.68 | 3.54 | 0.84 | 14 | 35.1±1.16 | 18.9±0.62 | 6.34 | 0.82 | 15 | 22.7±0.95 | 15.7±0.49 | 2.35 | 0.27 | 16 | 20.3±0.93 | 17.2±1.40 | 12.52 | 0.25 | 17 | 15.4±0.85 | 14.7±0.57 | 2.45 | 0.51 | 18 | 32.6±3.18 | 8.3±0.68 | 6.88 | 0.92 |
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