紫色土坡耕地耕层质量障碍特征
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宋鸽,史东梅,曾小英,蒋光毅,江娜,叶青
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Quality Barrier Characteristics of Cultivated Layer for Sloping Farmland in Purple Hilly Region
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Ge SONG,DongMei SHI,XiaoYing ZENG,GuangYi JIANG,Na JIANG,Qing YE
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表1 紫色土坡耕地耕层土壤属性指标及农作物产量
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Table 1 Soil property index and crop yield of cultivated layer in purple soil slope farmland
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地块号 Block number | 行政区域 Administrative region | 土壤紧实度 Soil compaction | 耕层厚度 Topsoil thickness (cm) | 心土层厚度 Subsoil layer thickness (cm) | 有效土层厚度Effective thickness of soil layer (cm) | 田面坡度 Slope (°) | 土壤有机质 Soil organic matter (g·kg-1) | 阳离子交换量 Cation exchange capacity ( cmol(+)·L-1) | 土壤全氮 Soil total nitrogen (g·kg-1) | 土壤有效磷 Soil effective phosphate (mg·kg-1) | 农作物产量 Crop yield (t·hm-2) | 地力等级 Productivity grade of cultivated land | 1 | 万州区 Wanzhou District | 疏松 Loose | 20 | 20 | 40 | 5 | 19.5 | 32.1 | 1.0 | 12 | 9.00 | 一级 First grade | 2 | 万州区 Wanzhou District | 疏松 Loose | 22 | 23 | 45 | 5 | 10.0 | 27.6 | 0.7 | 10 | 6.75 | 二级 Secondary grade | 3 | 万州区 Wanzhou District | 疏松 Loose | 20 | 30 | 50 | 10 | 9.7 | 16.3 | 0.9 | 3 | 5.25 | 三级 Third grade | 4 | 万州区 Wanzhou District | 疏松 Loose | 15 | 5 | 20 | 15 | 7.0 | 19.9 | 0.4 | 10 | 4.50 | 四级 Fourth grade | 5 | 万州区 Wanzhou District | 疏松 Loose | 20 | 0 | 20 | 25 | 9.9 | 18.9 | 0.8 | 3 | 4.50 | 五级 Fifth grade | 6 | 云阳县 Yunyang Country | 疏松 Loose | 25 | 15 | 40 | 6 | 14.6 | 31.8 | 0.9 | 9 | 9.75 | 一级 First grade | 7 | 云阳县 Yunyang Country | 疏松 Loose | 25 | 25 | 50 | 7 | 9.0 | 21.1 | 0.6 | 7 | 9.25 | 二级 Secondary grade | 8 | 云阳县 Yunyang Country | 较紧实 Relatively compact | 24 | 16 | 40 | 12 | 19.9 | 22.4 | 1.4 | 6 | 8.00 | 三级 Third grade | 9 | 云阳县 Yunyang Country | 疏松 Loose | 20 | 20 | 40 | 16 | 12.3 | 24.8 | 0.7 | 4 | 6.50 | 四级 Fourth grade | 10 | 云阳县 Yunyang Country | 松散 Unconsolidated | 20 | 0 | 20 | 20 | 5.3 | 28.4 | 0.4 | 4 | 5.25 | 五级 Fifth grade | 11 | 北碚区 Beibei District | 疏松 Loose | 20 | 15 | 35 | 5 | 12.4 | 28.4 | 0.9 | 18 | 9.00 | 一级 First grade | 12 | 北碚区 Beibei District | 疏松 Loose | 19 | 21 | 40 | 5 | 12.9 | 24.7 | 1.0 | 6 | 7.88 | 二级 Secondary grade | 13 | 北碚区 Beibei District | 疏松 Loose | 20 | 10 | 30 | 10 | 16.6 | 17.4 | 1.1 | 45 | 7.13 | 三级 Third grade | 14 | 北碚区 Beibei District | 疏松 Loose | 25 | 0 | 25 | 15 | 10.0 | 20.8 | 0.6 | 1 | 6.38 | 四级 Fourth grade | 15 | 北碚区 Beibei District | 疏松 Loose | 15 | 0 | 15 | 25 | 10.6 | 28.8 | 0.7 | 6 | 5.63 | 五级 Fifth grade | 16 | 綦江区 Qijiang District | 疏松 Loose | 20 | 20 | 40 | 5 | 12.2 | 12.9 | 0.8 | 29 | 9.30 | 一级 First grade | 17 | 綦江区 Qijiang District | 较疏松 Relatively loose | 20 | 20 | 40 | 12 | 14.4 | 22.6 | 1.3 | 6 | 6.00 | 二级 Secondary grade | 18 | 綦江区 Qijiang District | 疏松 Loose | 20 | 15 | 35 | 10 | 16.9 | 18.3 | 1.1 | 104 | 5.25 | 三级 Third grade | 19 | 綦江区 Qijiang District | 疏松 Loose | 25 | 15 | 40 | 11.5 | 16.8 | 12.7 | 0.6 | 19 | 4.50 | 四级 Fourth grade | 20 | 綦江区 Qijiang District | 疏松 Loose | 20 | 0 | 20 | 25 | 18.7 | 0.1 | 1.0 | 139 | 4.12 | 五级 Fifth grade | 21 | 江津区 Jiangjin District | 疏松 Loose | 15 | 15 | 30 | 5 | 14.0 | 28.6 | 1.2 | 2 | 6.38 | 一级 First grade | 22 | 江津区 Jiangjin District | 疏松 Loose | 19 | 21 | 40 | 5 | 12.9 | 21.5 | 1.0 | 6 | 6.00 | 二级 Secondary grade | 23 | 江津区 Jiangjin District | 疏松 Loose | 20 | 20 | 40 | 10 | 10.5 | 15.8 | 0.8 | 1 | 5.25 | 三级 Third grade | 24 | 江津区 Jiangjin District | 疏松 Loose | 20 | 10 | 30 | 15 | 21.1 | 16.6 | 1.1 | 14 | 4.50 | 四级 Fourth grade | 25 | 江津区 Jiangjin District | 疏松 Loose | 20 | 10 | 30 | 15 | 16.3 | 14.1 | 1.2 | 0 | 4.13 | 五级 Fifth grade | 26 | 彭水县 Pengshui County | 疏松 Loose | 20 | 25 | 45 | 5 | 19.6 | 11.5 | 1.3 | 4 | 9.75 | 一级 First grade | 27 | 彭水县 Pengshui County | 疏松 Loose | 20 | 20 | 40 | 7 | 15.6 | 12.2 | 1.0 | 27 | 9.10 | 二级 Secondary grade | 28 | 彭水县 Pengshui County | 疏松 Loose | 20 | 10 | 30 | 14 | 14.0 | 16.5 | 1.1 | 8 | 7.75 | 三级 Third grade | 29 | 彭水县 Pengshui County | 疏松 Loose | 20 | 0 | 20 | 16 | 9.6 | 25.4 | 1.2 | 9 | 6.00 | 四级 Fourth grade | 30 | 彭水县 Pengshui County | 较紧实 Relatively compact | 20 | 0 | 20 | 22 | 23.4 | 10.4 | 1.5 | 4 | 5.55 | 五级 Fifth grade | 31 | 巴南区 Banan District | 较疏松 Relatively loose | 20 | 10 | 30 | 5 | 22.8 | 13.0 | 1.3 | 51 | 9.75 | 一级 First grade | 32 | 巴南区 Banan District | 较疏松 Relatively loose | 20 | 20 | 40 | 7 | 15.5 | 25.8 | 1.0 | 8 | 8.10 | 二级 Secondary grade | 33 | 巴南区 Banan District | 疏松 Loose | 15 | 10 | 25 | 14 | 32.3 | 12.7 | 1.5 | 27 | 5.50 | 三级 Third grade | 34 | 巴南区 Banan District | 疏松 Loose | 20 | 0 | 20 | 17 | 14.8 | - | 1.0 | 14 | 6.00 | 四级 Fourth grade | 35 | 巴南区 Banan District | 疏松 Loose | 20 | 0 | 20 | 17 | 12.6 | 17.3 | 0.8 | 18 | 5.55 | 五级 Fifth grade |
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