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| 基金项目：中国地质调查局项目“深部成矿地质异常定量预测方法与模型”（2017YFC0601502） |
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| 摘要： |
| 利用时间序列分析方法，选取归一化植被覆盖指数为评价指标，对比分析内蒙古地区1982—2012年的荒漠化发展趋势，并对荒漠化问题的原因及解决方法进行了初步探讨。结果表明：植被指数（NDVI）与荒漠化水平有一定的关联，荒漠化程度越高，植被指数越低；从时间变化来看，年内植被指数满足单峰型变化，年均值变化有轻微下降趋势；从空间变化来看，植被指数具有明显的空间分异规律，表现出一定的地域性。通过降水、气温等自然因素以及人为活动等的相关分析，认为植被指数的变化规律与自然及人为活动都有一定的关联性。 |
| 关键词：土地荒漠化 植被指数（NDVI） 时空变化 内蒙古 |
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| Abstract: |
| In this paper, the time series analysis method was used to select the Normalized Difference Vegetation Index (NDVI) as the indicator, and the development trends of desertification in Inner Mongolia from 1982 to 2012 were compared and discussed. The causes and solutions of desertification were discussed. The results show that vegetation index NDVI is associated with desertification level. The higher the desertification degree is, the lower vegetation index is. In the course of time, the vegetation index is shown as a single peak type within a year, and its annual mean change was slightly decreasing. In view of the spatial change, the vegetation index in Inner Mongolia has obvious spatial differentiation rules, with a certain regional character. By the analysis of natural factors such as precipitation and temperature and human activities, it is concluded that the change of vegetation index is related to natural and human activities. |
| Keywords:desertification Normalized Difference Vegetation Index (NDVI) temporal and spatial change Inner Mongolia |
| 潘灵慧，陈建平.基于遥感数据的内蒙古近三十年植被指数的时空分析[J].地质学刊,2018,42(3):507-513 |
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