| 山丹县耕地土壤养分时空变化规律研究 |
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| 引用本文： | 晏斌,谭岩,刘祁峰,江晶,董青松.山丹县耕地土壤养分时空变化规律研究[J].甘肃农业科技,2016(7):19-22. |
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| 作者姓名： | 晏斌 谭岩 刘祁峰 江晶 董青松 |
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| 作者单位： | 1. 甘肃省山丹县农业技术推广中心,甘肃 山丹,734100;2. 甘肃农业大学资源与环境学院,甘肃兰州,730070;3. 甘肃省智慧农业工程技术研究中心,甘肃 兰州,730070 |
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| 基金项目： | 甘肃省科技支撑计划“旱作农田精确施肥技术研究”(1104NKCA093) |
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| 摘 要： | 采用Arc GIS9.3、克吕格空间插值技术对山丹县1986—2007年土壤养分变化情况进行时空比较分析。结果表明,与第二次土壤普查相比,耕地土壤有机质、全氮和碱解氮总体呈现下降趋势,土壤有效磷、速效钾含量呈现增长趋势。
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| 关 键 词： | 耕层 土壤养分 时空变化 山丹县 |
Study on Temporal and Spatial-variation of Soil Nutrients in Shandan |
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| YAN Bin,TAN Yan,LIU Qifeng,JIANG Jing,DONG Qingsong.Study on Temporal and Spatial-variation of Soil Nutrients in Shandan[J].Gansu Agricultural Science and Technology,2016(7):19-22. |
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| Authors: | YAN Bin TAN Yan LIU Qifeng JIANG Jing DONG Qingsong |
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| Abstract: | Using ArcGIS9.3 and Krueger spatial interpolation techniques, and by spatial-variation data comparative analysis of soil nutrients changes in the period of 1986 to 2007. The result shows that the soil organic matter, total nitrogen and available nitrogen in soil has been a decreasing trend compared with the second soil survey, and the contents of available phosphorus and available potassium has been going up all the time. |
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| Keywords: | Topsoil Soil nutrient Spatial-variation Shandan county |
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