| 松嫩平原中西部湖泊底泥营养盐的空间变异特征 |
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| 引用本文： | 王俊杰,朱德清,臧淑英.松嫩平原中西部湖泊底泥营养盐的空间变异特征[J].地理与地理信息科学,2011,27(2):92-95,113. |
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| 作者姓名： | 王俊杰 朱德清 臧淑英 |
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| 作者单位： | 1. 哈尔滨师范大学,黑龙江省普通高等学校地理环境遥感监测重点实验室,黑龙江,哈尔滨,150025;黑龙江科技学院,黑龙江,哈尔滨,150027
2. 哈尔滨师范大学,黑龙江省普通高等学校地理环境遥感监测重点实验室,黑龙江,哈尔滨,150025 |
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| 基金项目： | 国家自然科学基金重点项目，教育部博士点基金，黑龙江省教育厅科学技术研究项目，黑龙江省高等学校科技创新团队建设计划项目 |
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| 摘 要： | 在GIS技术的支持下,利用地统计学方法分析了松嫩平原中西部湖泊底泥营养盐的空间变异特征,并利用Kriging插值方法绘制了研究区营养元素的空间分布图。研究结果表明,通过块金值与基台值的比值C0/(C0+C1)可以得出总有机碳TOC具有较弱的空间相关性,总磷TP和全氮TN具有中等的空间相关性;Kriging插值表明,松嫩平原中西部地区的湖泊底泥营养盐分布格局是西南地区低于北部地区,北部地区的各项指标均超过全区的平均水平。
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| 关 键 词： | 湖泊底泥 营养盐 Kriging插值 空间变异 |
Spatial Variability Characteristics of Lake Sediments Nutrients in the Mid-west of Songnen Plain |
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| WANG Jun-jie,ZHU De-qing,ZANG Shu-ying.Spatial Variability Characteristics of Lake Sediments Nutrients in the Mid-west of Songnen Plain[J].Geography and Geo-Information Science,2011,27(2):92-95,113. |
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| Authors: | WANG Jun-jie ZHU De-qing ZANG Shu-ying |
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| Institution: | 1(1.Key Laboratory of Remote Sensing Monitoring of Geographic Environment for Heilongjiang Colleges,Harbin Normal University,Harbin 150025;2.Heilongjiang Institute of Science and Technology,Harbin 150027,China) |
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| Abstract: | Geostatistics is useful for characterizing and mapping spatial variability of nutrients.The geostatistics method combined with geographic information system(GIS) was applied to the spatial variability of nutrients in lake sediments in mid-west of Songnen Plain.The results indicated that the ratio of nugget to sill was 0.765 for total organic carbon(TOC),it showed that TOC had faintish spatial correlation.And the ratio of nugget to sill was 0.518 and 0.582 respectively of total phosphorus(TP) and total nitrogen(TN),it showed that TP and TN had moderate spatial correlation.The Kriging interpolation demonstrated that the distribution pattern of nutrients in lake sediments was the southwest region is below the north in mid-west of Songnen Plain,however the northern figures are above the average levels of the whole region. |
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| Keywords: | lake sediments nutrients Kriging interpolation spatial variation |
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