| 凤城市耕地土壤pH值的时空变化 |
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| 引用本文： | 王平. 凤城市耕地土壤pH值的时空变化[J]. 农业机械化与电气化, 2014, 0(11): 3-5 |
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| 作者姓名： | 王平 |
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| 作者单位： | 凤城市土肥站,辽宁丹东118000 |
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| 摘 要： | 为掌握凤城市耕地土壤的pH值状况，对比分析近25 a的pH值土壤变化情况。结果表明：1980—2007年，凤城市处于酸性的三级耕地面积有大幅度增加，总体增加了15642．6 hm2，主要集中在白旗镇和边门镇；pH处于弱酸性和中性水平的四级和五级耕地面积大幅下降，主要集中在石城镇、边门镇等地。
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| 关 键 词： | pH值 耕地土壤 分级 时空变化 |
Research on Spatial-temporal Variation of pH in Fengcheng Cropland |
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| WANG Ping. Research on Spatial-temporal Variation of pH in Fengcheng Cropland[J]. , 2014, 0(11): 3-5 |
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| Authors: | WANG Ping |
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| Affiliation: | WANG Ping (Fengcheng Soil Fertilizer Station, Dandong Liaoning 118000, China) |
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| Abstract: | The article is based on the status of cropland soil pH in Fengcheng, it analyzes pH soil variation of recent 25 years. The re-sult shows：in the period of 1980-2007, the cropland area of level 3 stayed in acidic condition has increased greatly in Fengcheng, the increased area is 15 642.6 hm2,mainly locates in Baiqi town and Bianmen town;the cropland area of level 4 and 5 of pH weak acid and neutral level have decreased greatly, mainly locates in Shicheng town and Bianmen town. |
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| Keywords: | pH cropland soil classification Spatial-Temporal variation |
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