| 半干旱区土壤肥力与可见光谱的相关性分析 |
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| 引用本文： | 丁文广,陈劲松,吴晟,牛贺文.半干旱区土壤肥力与可见光谱的相关性分析[J].干旱地区农业研究,2011,29(3):150-155. |
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| 作者姓名： | 丁文广 陈劲松 吴晟 牛贺文 |
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| 作者单位： | 兰州大学西部环境教育部重点实验室;西部环境与气候变化研究院; |
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| 基金项目： | 国家自然科学基金“创新群体-西部环境变化”项目(NSFC40721061) |
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| 摘 要： | 实验测定了黄土高原半干旱区63个土壤样本的14个土壤肥力指标和其可见光波段内的光谱反射率,然后对二者结果做多因子逐项单相关分析,以此探究用光谱表征土壤肥力的可行性.结果表明:(1)土壤肥力的多个重要因子与光谱反射率的相关性都在0.7以上;(2)土壤剖面各肥力因子与光谱的相关性比土壤表层差,并且二者在大部分肥力因子上都存...
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| 关 键 词： | 反射光谱 肥力 相关系数 土壤剖面 |
Research on correlation between visible spectrum and
soil fertility factors in semi-arid region of China |
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| DING Wenguang,CHEN Jinsong,WU Sheng,NIU He wen.Research on correlation between visible spectrum and
soil fertility factors in semi-arid region of China[J].Agricultural Research in the Arid Areas,2011,29(3):150-155. |
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| Authors: | DING Wenguang CHEN Jinsong WU Sheng NIU He wen |
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| Institution: | DING Wen-guang1,2,CHEN Jin-song1,WU Sheng2,NIU He-wen1(1.MOE Key Laboratory of Western China's Environmental System,Lanzhou University,Gansu 730000,China,2.Research School of Arid Environment and Climate Change,China) |
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| Abstract: | This study has tested 14 soil fertility indexes of 63 soil samples in semiarid regions of the Loess Plateau,measured its spectral reflectance in visible bands,and then made multiple factor synthesis analysis so as to explore a method to measure soil fertility by spectral characterization.The results indicate that:(1) The spectral reflectance correlation of many soil fertility multiple core factors are above 0.7;(2) The spectrum correlation of soil profile fertility factor is poorer than surface soil,and the... |
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| Keywords: | spectral reflectance soil fertility correlation coefficient soil profile |
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