湖南祁阳县土壤酸化主要驱动因素贡献解析
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周海燕,徐明岗,蔡泽江,文石林,吴红慧
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Quantitative Analysis of Driving-Factors of Soil Acidification in Qiyang County, Hunan Province
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ZHOU HaiYan,XU MingGang,CAI ZeJiang,WEN ShiLin,WU HongHui
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表8 不同农作物体系的关键致酸过程的H+产生量
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Table 8 H+ production of acidity-inducing factors among the six main crop systems
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作物类型 Crop system | 氮循环过程 N cycling process | 盐基吸收 BC uptake (kmol·hm-2·a-1) | 盐基吸收贡献率 BC uptake contribution (%) | 磷吸收 P uptake process (kmol·hm-2·a-1) | H+净产量 H+ net production (kmol·hm-2·a-1) | H+产量 H+ production (kmol·hm-2·a-1) | 贡献率 Contribution (%) | K | Ca | Mg | 甘薯 Sweet potato | 4.8 | 45.3 | 2.49 | 2.57 | 0.65 | 54.2 | -0.439 | 10.1 | 玉米 Corn | 12.2 | 78.3 | 1.54 | 1.13 | 0.66 | 21.4 | -0.488 | 15.1 | 水稻 Rice | 11.5 | 65.3 | 3.35 | 1.67 | 1.04 | 34.4 | -1.096 | 16.5 | 花生 Peanut | 14.6 | 78.3 | 1.15 | 1.93 | 0.92 | 21.4 | -0.532 | 18.1 | 油菜 Rape | 16.5 | 71.2 | 4.00 | 1.66 | 0.96 | 28.6 | -0.795 | 22.4 | 大豆 Soybean | 21.8 | 70.1 | 3.15 | 4.56 | 1.53 | 29.7 | -1.147 | 30.0 |
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