| 中子水分仪测定棉田土壤含水量的标定研究 |
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| 引用本文： | 伍维模,吕双庆,王冀平,郑德明,赵友伟,任亚龙.中子水分仪测定棉田土壤含水量的标定研究[J].塔里木农垦大学学报,2001,13(3):1-5,48. |
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| 作者姓名： | 伍维模 吕双庆 王冀平 郑德明 赵友伟 任亚龙 |
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| 作者单位： | 塔里木农垦大学植物科技学院,新疆,阿拉尔,843300 |
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| 摘 要： | 通过中子水分仪测定棉田土壤含水量的标定研究，得到了土壤不同深度的三条标定直线：0－25cm土层标定直线的截距和斜率是1．81（v%)，23．41（v%/cnt/std);30-80cm土层标定直线的截距和斜率是－2．77（v%),26.25(v%/cnt/std);90-110cm土层株定直线的截距和斜率是－6．62（v%)，28．60(v%/cnt/std)。还阐明了在利用中子水分仪作灌溉计划时精确的田间标定直线的必要性。同时提出了用系统聚类法来选择中子水分标定管点的方法。
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| 关 键 词： | 中子水分仪 田间标定 棉田 土壤含水量 |
| 文章编号： | 1009-0568(2001)03-0001-05 |
Calibration Study of the Determination of Cotton Soil Moisture with Neutron Probe |
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| Wu Weimo,Lu Shuangqing,Wang Jiping,Zheng Deming Zhao Youwei ,Ren Yalong.Calibration Study of the Determination of Cotton Soil Moisture with Neutron Probe[J].Journal of Tarim University of Agricultural Reclamation,2001,13(3):1-5,48. |
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| Authors: | Wu Weimo Lu Shuangqing Wang Jiping Zheng Deming Zhao Youwei Ren Yalong |
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| Institution: | Wu Weimo,Lu Shuangqing,Wang Jiping,Zheng Deming Zhao Youwei **,Ren Yalong ** |
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| Abstract: | From the calibration study of the determonation of cotton soil moisture with neutron probe,we get the slops and intercepts of three calibration equations, which are 23.41v%/cnt/std and 1.81v% of 0-25cm soil layer,26.25v%/cnt/std and -2.77v% of 30-80cm soil layer, and 28.60v%/cnt/std and -6.62v% of 90-110cm soil layer .This paper also proves that it is necessary to use precise field calibration equation for irrigation shedule with neutron probe.Also,we bring forward a way to select the calibration sites in this paper,that is,the Hierachical clustering method. |
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| Keywords: | neutron probe field calibration |
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