近35年红壤稻区土壤肥力时空演变特征—以进贤县为例
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王远鹏,黄晶,孙钰翔,柳开楼,周虎,韩天富,都江雪,蒋先军,陈金,张会民
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Spatiotemporal Variability Characteristics of Soil Fertility in Red Soil Paddy Region in the Past 35 Years—A Case Study of Jinxian County
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WANG YuanPeng,HUANG Jing,SUN YuXiang,LIU KaiLou,ZHOU Hu,HAN TianFu,DU JiangXue,JIANG XianJun,CHEN Jin,ZHANG HuiMin
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表4 不同时期土壤肥力指标和综合肥力指数面积比例统计结果
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Table 4 Results of area ratio of soil fertility factors and integrated fertility index in different periods
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项目
Item | 年份
Year | 面积占比 Area ratio (%) | | 强酸Strong acid | 酸性Acidity | 微酸Slightly acid | 中性Neutral | 碱性Alkalinity | | pH | 1982 | 0 | 14 | 81 | 5 | 0 | | 2008 | 0 | 93 | 7 | 0 | 0 | | 2017 | 1 | 99 | 0 | 0 | 0 | 目
Item | 年份
Year | 面积占比 Area ratio (%) | | 一级 Grade 1 | 二级 Grade 2 | 三级 Grade 3 | 四级 Grade 4 | 五级 Grade 5 | | SOM | 1982 | 0 | 38 | 59 | 3 | 0 | | 2008 | 2 | 81 | 14 | 3 | 0 | | 2017 | 6 | 94 | 0 | 0 | 0 | | AN | 1982 | 30 | 64 | 6 | 0 | 0 | | 2008 | 100 | 0 | 0 | 0 | 0 | | 2017 | 98 | 2 | 0 | 0 | 0 | | AP | 1982 | 0 | 0 | 1 | 93 | 6 | | 2008 | 3 | 79 | 18 | 0 | 0 | | 2017 | 19 | 75 | 6 | 0 | 0 | | AK | 1982 | 0 | 0 | 0 | 59 | 41 | | 2008 | 0 | 0 | 4 | 86 | 10 | | 2017 | 0 | 0 | 10 | 89 | 1 | | IFI | 1982 | 0 | 0 | 7 | 86 | 7 | | 2008 | 0 | 0 | 58 | 41 | 1 | | 2017 | 0 | 21 | 78 | 1 | 0 |
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