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The Impact on Vegetation Dynamic of Human Activities in the Southwest China Karst

机译：西南喀斯特人类活动植被动态的影响

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Recent trend analyses have indicated the spatial variations of vegetation dynamic in South China Karst region, such as growth in west and southwest, degradation in northwest and southeast. Whether the factories lead to vegetation degradation would be identical to the factories lead to growth was investigated in this study. The result shows that (1) about 11.5% of the total study areas have experienced a significantly decrease in the annual NDVI, and 7.8% was significant increase. The proportion of vegetation degradation was higher in spring and summer than in autumn and winter, vegetation growth were opposite. (2) The relation between NDVI and climate variation was weaker in the region scale. (3) The impact of human activities on vegetation dynamic was bidirectional. The negative influence was bigger than positive.
机译：最近的趋势分析表明了华南喀斯特地区植被动态的空间变化，如西部和西南，西北和东南部的降解。工厂是否导致植被退化将与工厂相同，在本研究中调查了趋势。结果表明，（1）占总研究区域的11.5％的人数在年度NDVI中经历了明显减少，7.8％显着增加。春季和夏季植被降解的比例高于秋季和冬季，植被生长相反。 （2）地区规模的NDVI与气候变化之间的关系较弱。 （3）人类活动对植被动态的影响是双向的。负面影响大于阳性。

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