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| The land use genesis classification of karst rockification |
| Li Yangbing1,2,Zhou Guofu2,Long Jian2 |
| 1.College of Geography Science,Chongqing Normal University,400047,Chongqing;2.School of Geogrophy and Biology,Guizhou Normal University,550001,Guizhou:China |
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Abstract Based on land rockification and land use datum in 2004,the land use types distribution law in different grade rockification and occurrence ratio of rockification in different land use types in Huangping county were researched quantitatively.Results indicated that there is a relativity among different grade rockification and land use types,the shrub-land,sparse coverage grass slopes,unused land,slope cropland and rocky dry-land have a higher occurrence ratio of karst rockification.Slight rockification was dominated by sparse and moderate coverage grass slopes,moderate rockification was dominated by unused land,moderate coverage grass slopes and rocky dry-land,intense rockification was dominates by rocky dry-land and unused land.But these spatial correlations among land use patterns and different grade rockification varied with districts.Furthermore,the slight,moderate and intense rockification are classified as land use types,so the restoration and reconstruction of slight,moderate and intense rockification land should be emphasised corresponding land use patterns in Huangping County and its Ⅰ～Ⅴ subarea.
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Received: 04 August 2006
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