| 土壤可蚀性(K)值图编制方法的初步研究 |
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| 引用本文： | 卜兆宏,李全英. 土壤可蚀性(K)值图编制方法的初步研究[J]. 遥感技术与应用, 1994, 9(4): 22-27. DOI: 10.11873/j.issn.1004-0323.1994.4.22 |
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| 作者姓名： | 卜兆宏 李全英 |
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| 作者单位： | (1.中国科学院南京土峨研究所 南京210008；2.河北省张家口市水土保持试验站 张家口075000) |
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| 摘 要： | 介绍了利用土壤普查图件和剖面理化分析的成果资料，编制土壤可蚀性(K)值图的方法，沙及求取剖面点K值的查图表法、图斑分并与图斑K值的确定原则和编制程序等。应用上述方法，完成了我国第一张地区级K值图，效果良好。经分析，与公式算法比，查图表法的K值精度为85.45%;与径流小区实测值比，用K值图上相应K值监测的土攘年流失量的精度为86.0%.。该法既有更新水土流失调查方法的科学意义和指导流失治理的实
用价值，也值得进一步深入研究。
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| 关 键 词： | 土壤可蚀性(K) 查图表法 监测土壤流失量 |
Preliminary Study on the Method of Soil Erodibility Mapping |
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| Bu Zhaohong et al. Preliminary Study on the Method of Soil Erodibility Mapping[J]. Remote Sensing Technology and Application, 1994, 9(4): 22-27. DOI: 10.11873/j.issn.1004-0323.1994.4.22 |
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| Authors: | Bu Zhaohong et al |
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| Affiliation: | (Institute of soil Science，Academia Sinica，Nanjing 210008) |
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| Abstract: | The mapping method of soil erodibility(K)using soil survey maps and the physic-chemical properties of soil profiles were described.The method involved in soil profile Kvalue determination by looking up graph and table,the combination and sepration of mapunit,and mapping program.First regionalwide K value map compiled based on themethod.The accuracy of looking up graph and table method was 85.4% value,used formonitoring annual soil loss,the accuracy of K value in map unit was 86.0% comparedvvith the determinated value of runoff plot.The method has a scientific significance for therenewal of soil erosion investigation and a practical value for erosion control, further stud-ies, however,are also needed. |
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| Keywords: | Soil erodibility Looking up graph and table method Soil loss monitoring |
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