利用不同时期福建省的土壤侵蚀数据,对闽南地区土壤侵蚀的时空变化进行分析。分析结果表明,闽南地区是福建省土壤侵蚀最严重的地区,区域内侵蚀最严重的局部位于东南低丘平原区;在空间分布上,土壤侵蚀呈现出20世纪80年代由东南低丘平原区向西北丘陵山地区减缓,而90年代呈相反的规律;在时间变化上,土壤侵蚀总体呈下降趋势,且东南低丘平原区的降幅远大于全区平均值,而西北丘陵山地区则呈现出在20世纪80年代至90年代中期上升而后有所下降的趋势。 Based on the data of soil erosion in different periods in Fujian Province, the spatial and temporal variations of soil erosion in southern Fujian were analyzed. The results show that the south Fujian Province is the most seriously affected area in Fujian Province. The most serious erosion in the area is located in the southeastern hilly plain area. In terms of spatial distribution, the soil erosion shows the most serious erosion in the area from southeastern hilly plain in the 1980s In the northwestern hills and hilly regions, there was a slowdown and the opposite trend in the 1990s. In terms of time variation, soil erosion generally showed a downward trend, and the decline in southeastern hilly plain areas was much larger than that in the whole region, whereas in the northwestern hilly and mountainous regions, From the 1980s to the mid-1990s, it rose and then declined.