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| 昆山市土壤养分现状与变化趋势研究 |
| Soil Nutrient Status and Trends in Kunshan City,China |
| 投稿时间：2013-05-27 |
| DOI： |
| 中文关键词: 土壤 养分 现状 变化趋势 昆山市 |
| 英文关键词: soil nutrient status trends Kunshan City |
| 基金项目: |
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| 中文摘要: |
| 2009年对昆山市土壤养分进行检测,检测结果显示:有机质35.5 g·kg-1,全氮2.22 g·kg-1,碱解氮162 mg·kg-1,有效磷15.1mg·kg-1,速效钾115 mg·kg-1,pH值6.0。与第二次土壤普查相比,有机质和全氮含量呈上升趋势,碱解氮、有效磷、速效钾含量明显提高,pH值呈下降趋势。 |
| 英文摘要: |
| Soil nutrient analysis was carried out in Kunshan City in 2009.The results showed that the mean value of soil organic matter, total nitrogen, alkaline hydrolysis nitrogen, Olsen-P, HA-K and pH was 35.5 g·kg-1, 2.22 g·kg-1, 162 mg·kg-1, 15.1 mg·kg-1, 115 mg·kg-1and 6.0,respectively. Compared with the results of 1981, the soil organic matter,total nitrogen content showed a tendency of increasing, and alka-line hydrolysis nitrogen, Olsen-P, HA-K content showed a sharp rise, but pH value showed a tendency of decreasing. |
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