CAJ | 학술논문

以山西省晋北沙化区为研究区，基于长时序的归一化植被指数（ NDVI）数据和趋势分析方法，从年份、季节和月份3个尺度系统分析了研究区的植被变化时空特征。研究发现：2000-2012年晋北沙化区的植被活动在增强，年增加率为14．61％，研究区89．57％的区域植被活动在增强，其中秋季植被活动增强最为明显，表明近13 a晋北地区的土地沙化趋势在减弱，在该区实施的京津风沙源治理工程的生态效应正在呈现。但研究区整体植被覆盖仍较低，69．93％的区域为较少植被区。因此，京津风沙源治理工程在该区需继续实施，才能保证植被恢复到理想的状态。
이산서성진북사화구위연구구，기우장시서적귀일화식피지수（ NDVI）수거화추세분석방법，종년빈、계절화월빈3개척도계통분석료연구구적식피변화시공특정。연구발현：2000-2012년진북사화구적식피활동재증강，년증가솔위14．61％，연구구89．57％적구역식피활동재증강，기중추계식피활동증강최위명현，표명근13 a진북지구적토지사화추세재감약，재해구실시적경진풍사원치리공정적생태효응정재정현。단연구구정체식피복개잉교저，69．93％적구역위교소식피구。인차，경진풍사원치리공정재해구수계속실시，재능보증식피회복도이상적상태。
In the desertification area of Northern Shanxi Province , we analyzed vegetation changes both temporally and spatially from multi-scales based on the long time-series normalized difference vegetation index (NDVI).The vegetation activities from 2000 to 2012 showed an increasing trend as a whole with the increasing rate of 14.61%.Vegetation activity in 89.57%of the total study area increased over 13 years.The greatest increasing trend of vegetation activity occurred in the autumn .The desertification trend was decreasing in Northern Shanxi Province and the benefit of Beijing -Tianjin sandstorm control project was presenting .However , 69.93%of the total area is low vegetation coverage ,indicating that the ecological restoration pro -gram in this area should be continue to implement for restoring to the expected result .