论文部分内容阅读
利用遥感影像解译1995、2004、2012年3期的水土流失图,分析诏安县的水土流失变化趋势及空间分布,并以行政村为单元对其1995年以来水土流失的总体态势做出评估.研究认为,1995年以来诏安县水土流失面积持续下降,但下降趋势趋缓;水土流失总体态势改善明显,但中东部地区水土流失有所加重.
Using the remote sensing images to interpret the soil erosion maps of 1995, 2004 and 2012, the trend and spatial distribution of soil and water loss in Zhaoan County were analyzed. The overall situation of soil and water loss since 1995 was evaluated by taking the administrative village as a unit. The study shows that since 1995, the area of soil and water loss in Zhaoan County has continued to decline, but the downward trend has slowed down. The overall trend of soil and water loss has been greatly improved, but the soil and water loss in the central and eastern regions has been aggravated.