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수도작 포장의 고저차 측정을 위한 최적 받침대 선정
Selection of Optimum Fulcrum Type for Measurement and Geo-statistical Analyze of Elevation within Rice Paddy Field

성제훈   (National Institute of Agricultural Engineering, RDACC0187572  ); 장순우   (National Institute of Agricultural Engineering, RDACC0187572  );
  • 초록

    This study was conducted to investigate the specificities of four fulcrum types for geo-statistical analysis of elevation within rice paddy field. In Korea, the spaces between inter-rows and between hills for rice transplanting are 30cm and 11cm to 14cm, respectively. So, the size and shape of fulcrum for field elevation measurement should be considered according to the inter-row and the hill spaces. Four kinds of fulcrum were chosen such as round-shape with 2.5cm diameter, circular-shape with 10cm diameter, 10cm (one third of inter-row space) by 24cm (double of hill space) rectangular-shape, and 20cm (two-thirds of inter-row space) by 24cm rectangular-shape. The resulting descriptive statistics couldn't determine the best fulcrum type to measure the rice paddy field elevation. But the results of geo-statistical analysis could determine the best fulcrum type. In the case of 10cm by 24cm rectangular-shape fulcrum, Nugget and range, meaning measurement error and/or noise, and limit of spatial connection, respectively, were minimum; Q value meaning weight of spatial structure and $r^2$ value were minimum, and residual sum of squares was minimum. It means that 10cm by 24 cm rectangular-shape fulcrum could best describe the rice paddy field elevation.


  • 주제어

    Elevation .   Geo-statistical analysis .   Optimum fulcrum .   Paddy field.  

  • 참고문헌 (10)

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    7. Lee, C. K., Sung, J. H., Jung, I. G., Kim, S. C., Lee, Y. B. and Park, W. K. 2004. Geo-statistical analysis of growth variability in rice paddy field. J. of Biosystems Engineering 29:109-120. (In Korean) 
    8. Sadler, E. J., Busscher, W. J., Bauer, P. J. and Karlen, D. L. 1998. Spatial scale requirements for precision farming: A case study in the southeastern USA. Agron. J. 90:191-197 
    9. Sudduth, K. A., Drummond, S. T., Birrell, S. J. and Kitchen, N. R. 1996. Analysis of spatial factors influencing crop yield. Int'l Proc. 3rd Int. Com. On Precision Agriculture, O.C. Robert et al. (ed.) pp. 129-140 
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  • 이 논문을 인용한 문헌 (2)

    1. Sung, Je-Hoon ; Jang, Soon-Woo 2006. "Analysis of Elevation Variation within a Rice Paddy Field" 韓國土壤肥料學會誌 = Korean journal of Soil Science and Fertilizer, 39(5): 307~314     
    2. Sung J.H. ; Jang S.W. 2006. "Variation Analysis of Elevation within a Rice Paddy Field" 바이오시스템공학 = Journal of biosystems engineering, 31(3): 188~193     

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  • 장순우 (1)

    1. 2006 "수도작 포장의 고저차 분석" 바이오시스템공학 = Journal of biosystems engineering 31 (3): 188~193    

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