| 宇宙射线土壤水分观测方法在黄土高原草地植被的应用 |
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| 引用本文： | 赵 纯,袁国富,邵明安,易小波,刘 晓.宇宙射线土壤水分观测方法在黄土高原草地植被的应用[J].土壤学报,2015,52(6):1438-1444. |
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| 作者姓名： | 赵 纯 袁国富 邵明安 易小波 刘 晓 |
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| 作者单位： | 西北农林科技大学资环学院,中国科学院地理科学与资源研究所,中国科学院地理科学与资源研究所,西北农林科技大学资环学院,中国科学院地理科学与资源研究所 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 宇宙射线土壤水分观测系统(COSMOS)是一种测量直径达600 m以上表层土壤平均含水量的新型土壤水分测量仪器。在黄土高原一片草地植被上测试COSMOS仪器测量土壤水分的效果,并与烘干法及Hydra ProbeⅡ土壤湿度传感器测量结果进行比较。结果表明,COSMOS测量结果与烘干法结果一致性好;与Hydra ProbeⅡ点尺度测量结果存在不同时间段的差别,暗示了黄土高原土壤水分空间变异性及其时间变化。COSMOS仪器能够很好地测量黄土高原破碎表面观测范围内表层平均土壤含水量,并为研究土壤含水量的空间变异性提供了潜在工具。
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| 关 键 词： | 宇宙射线土壤水分观测系统，土壤水分，黄土高原，草地 |
| 收稿时间： | 2015/3/11 0:00:00 |
| 修稿时间： | 2015/5/20 0:00:00 |
Application of cosmic-ray method to soil moisture measurement of grassland in the loess plateau |
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| Zhao Chun,Yuan Guofu,Shao Mingan,Yi Xiaobo and Liu Xiao.Application of cosmic-ray method to soil moisture measurement of grassland in the loess plateau[J].Acta Pedologica Sinica,2015,52(6):1438-1444. |
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| Authors: | Zhao Chun Yuan Guofu Shao Mingan Yi Xiaobo and Liu Xiao |
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| Institution: | College of Resources and Environment, Northwest A&F University,Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Science,Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Science,College of Resources and Environment, Northwest A&F University,Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Science |
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| Abstract: | Cosmic-ray Soil Moisture Observing System (COSMOS) is a newly-developed cosmic-ray instrument for measuring average surface soil moisture content over an area with more than 600 m in diameter. A field test was conducted of using this instrument to measure surface soil moisture content in a tract of grassland in the Loess Plateau, and comparison was made of the results of the field test with the results of the oven-drying method, and of the point scale measurement with the HydraProbe II sensors. It was found that the measurements using the COSMOS method were well in agreement with those using the oven-drying method, but differed from those using HydraProbe II sensors in some time spans, suggesting that soil moisture content in the Loess Plateau was subject to spatio-temporal variability. The COSMOS instrument offers an effective approach to measurement of area-average surface soil moisture content in the Loess Plateau with fragmented surface, and a potential tool for studying spatial variability of soil moisture content in the Loess Plateau. |
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| Keywords: | COSMOS Soil moisture Loess Plateau Grassland |
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