西南紫色土坡耕地农作物-耕层质量适宜性的耦合度诊断

娄义宝,史东梅,金慧芳,蒋光毅,段腾,江娜

Coupling Degree Diagnosis on Suitability Evaluation of Cultivated-Layer Quality for Slope Farmland in Purple Hilly Region of South-Western China

LOU YiBao,SHI DongMei,JIN HuiFang,JIANG GuangYi,DUAN Teng,JIANG Na

表1 紫色土坡耕地耕层土壤性质及生产条件

Table 1 Soil quality and agricultural production conditions of plow layer on purple soil slope

地块号Block number 行政区域 Adminis-trative region 母质 Parent material 田面 坡度Slope (°) 有效土 层厚度Effective thickness of soil layer (cm) 耕层 厚度Topsoil thickness (cm) pH 有机质 Soil organic matter (g·kg-1) 阳离子 交换量Cation exchange Capacity (cmol (+)·L-1) 全氮Total nitrogen (g·kg-1) 有效磷 Effective phosphate (mg·kg-1) 速效钾 Available potassium (mg·kg-1) 作物 产量Crop yield (t·hm-2) 地力等级 Productivity grade of cultivated land 1 万州区Wanzhou district 侏罗纪沙溪庙组 Jurassic Shaximiao Group 5 40 20 4.9 19.50 32.1 0.97 12.00 94.5 9.000 一 First 2 万州区Wanzhou district 侏罗纪沙溪庙组 Jurassic Shaximiao Group 5 45 22 5.2 10.00 27.6 0.66 10.00 79.1 6.750 二 Secondary 3 万州区Wanzhou district 侏罗纪遂宁组 Jurassic Suining Group 10 50 20 7.9 9.69 16.3 0.91 2.90 69.2 5.250 三 Third 4 万州区Wanzhou district 侏罗纪沙溪庙组 Jurassic Shaximiao Group 15 20 15 5.1 7.02 19.9 0.41 10.00 54.5 4.50 四 Fourth 5 万州区Wanzhou district 侏罗纪遂宁组Jurassic Suining Group 25 20 20 7.8 9.93 18.9 0.82 2.60 51.8 4.500 五 Fifth 6 云阳县Yunyang country 沙溪庙组 Shaximiao Group 6 40 25 6.9 14.60 31.8 0.89 9.39 88.7 9.750 一 First 7 云阳县Yunyang country 沙溪庙组 Shaximiao Group 7 50 25 6.2 8.99 21.1 0.61 6.61 114.0 9.250 二 Secondary 8 云阳县Yunyang country 巴东组 Padong Group 12 40 24 8.0 19.90 22.4 1.36 5.57 157.0 8.000 三 Third 9 云阳县Yunyang Country 蓬莱镇组 Penglai Group 16 40 20 6.5 12.30 24.8 0.72 3.74 55.1 6.500 四 Fourth 地块号Block number 行政区域 Adminis-trative region 母质 Parent material 田面 坡度Slope (°) 有效土 层厚度Effective thickness of soil layer (cm) 耕层 厚度Topsoil thickness (cm) pH 有机质 Soil organic matter (g·kg-1) 阳离子 交换量Cation exchange Capacity (cmol (+)·L-1) 全氮Total nitrogen (g·kg-1) 有效磷 Effective phosphate (mg·kg-1) 速效钾 Available potassium (mg·kg-1) 作物 产量Crop yield (t·hm-2) 地力等级 Productivity grade of cultivated land 10 云阳县Yunyang Country 蓬莱镇组 Penglai Group 20 20 20 8.3 5.29 28.4 0.41 4.31 170.0 5.250 五 Fifth 11 北碚区Beibei district 侏罗纪沙溪庙组 Jurassic Shaximiao Group 5 35 20 6.0 12.40 28.4 0.89 18.00 78.8 9.000 一 First 12 北碚区Beibei district 侏罗纪沙溪庙组 Jurassic Shaximiao Group 5 40 19 7.6 12.90 24.7 1.02 6.30 72.1 7.875 二 Secondary 13 北碚区Beibei district 须家河组 Xujiahe Group 10 30 20 5.1 16.60 17.4 1.14 45.00 47.3 7.125 三 Third 14 北碚区Beibei district 沙溪庙组 Shaximiao Group 15 25 25 7.9 10.00 20.8 0.61 1.20 50.5 6.375 四 Fourth 15 北碚区Beibei district 沙溪庙组 Shaximiao Group 25 15 15 4.9 10.60 28.8 0.65 6.10 44.4 5.625 五 Fifth 16 綦江区Qijiang district 侏罗纪沙溪庙组 Jurassic Shaximiao Group 5 40 20 6.8 12.20 12.9 0.80 29.00 39.6 9.300 一 First 17 綦江区Qijiang district 侏罗纪沙溪庙组 Jurassic Shaximiao Group 12 40 20 7.4 14.40 22.6 1.25 5.50 122.0 6.00 二 Secondary 18 綦江区Qijiang district 侏罗纪沙溪庙组 Jurassic Shaximiao Group 10 35 20 5.2 16.90 18.3 1.10 104.00 42.2 5.250 三 Third 19 綦江区Qijiang district 沙溪庙组 Shaximiao Group 12 40 25 5.3 16.80 12.7 0.64 19.00 43.6 4.500 四 Fourth 20 綦江区Qijiang district 页岩、沙岩风化物Shale, sandstone weathering 25 20 20 4.4 18.70 0.084 0.97 139.00 75.0 4.120 五 Fifth 21 江津区Jiangjin district 侏罗纪沙溪庙组 Jurassic Shaximiao Group 5 30 15 6.5 14.00 28.6 1.20 2.10 60.1 6.375 一 First 22 江津区Jiangjin district 侏罗纪沙溪庙组 Jurassic Shaximiao Group 5 40 19 7.6 12.90 21.5 1.02 6.30 72.1 6.000 二 Secondary 23 江津区Jiangjin district 侏罗纪沙溪庙组 Jurassic Shaximiao Group 10 40 20 6.7 10.50 15.8 0.75 1.40 111.0 5.250 三 Third 24 江津区Jiangjin district 侏罗纪沙溪庙组 Jurassic Shaximiao Group 15 30 20 5.4 21.10 16.6 1.14 14.00 46.6 4.500 四 Fourth 25 江津区Jiangjin district 页岩、沙岩风化物 Shale, sandstone weathering 15 30 20 7.1 16.30 14.1 1.17 0.00 86.2 4.125 五 Fifth 26 彭水县Pengshui county 巴东组紫色岩 Badong purple rock 5 45 20 7.3 19.60 11.5 1.30 3.90 60.2 9.750 一 First 27 彭水县Pengshui county 巴东组紫色岩 Badong purple rock 7 40 20 6.9 15.60 12.2 1.03 27.00 145.0 9.100 二 Secondary 28 彭水县Pengshui county 巴东组紫色岩 Badong purple rock 14 30 20 6.0 14.00 16.5 1.08 7.50 37.1 7.750 三 Third 29 彭水县Pengshui county 巴东组紫色岩 Badong purple rock 16 20 20 5.5 9.64 25.4 1.23 8.90 87.0 6.000 四 Fourth 30 彭水县Pengshui county 巴东组紫色岩Badong purple rock 22 20 20 7.1 23.40 10.4 1.54 3.50 48.3 5.550 五 Fifth