| 赵坤成，张永福，朱小强，顾刘阳，郭家新.2000—2014 年艾比湖NDVI 变化及其与降水、温度响应关系[J].广东农业科学,2017,44(9):82-88 |
|
查看全文
HTML
2000—2014 年艾比湖NDVI 变化及其与降水、温度响应关系 |
| NDVI changes in Ebinur basin from 2000 to 2014 and its response relation to precipitation and temperature |
| |
| DOI：10.16768/j.issn.1004-874X.2017.09.013 |
| 中文关键词: 归一化植被指数 空间分析 响应特征 遥感应用 生态安全 |
| 英文关键词: NDVI spatial analysis response characteristics application of remote sensing ecological safety |
| 基金项目:莎车县国土资源局《莎车县土地利用总体规划（2010—2020 年）》中期评估项目；新疆研究生科研
创新项目（XJGRI2016013） |
|
| 摘要点击次数: 1852 |
| 全文下载次数: 680 |
| 中文摘要: |
| 采用2000—2014 年艾比湖流域1 km×1 km 分辨率的MODIS-NDVI 影像数据，以MVC 法合成
年最大归一化差分植被指数（ NDVI），利用研究区内20 个气象站点的同期气象因子（温度、降水）数据，
探讨2000—2014 年艾比湖流域 NDVI 变化以及对温度与降水的响应特征。结果表明：15 年间艾比湖流域
NDVI 呈现增长趋势，其中轻微增加面积占82.97%，轻微减少和明显减少面积分别占2.11%、0.27%，植被
改善情况较好；从年际变化水平来看，线性相关与二维空间分析结果总体上研究区NDVI 与降水量呈正相
关、与温度呈负相关，同时降水对NDVI 变化的响应关系高于温度的影响，NDVI 与降水量和温度的线性相
关系数分别为R2=0.95、R2=0.81。利用遥感技术对艾比湖NDVI 进行长时间序列的趋势变化研究，对当地生
态安全的保护有理论与实际意义。 |
| 英文摘要: |
| Using the MODIS-NDVI image data of 1 km×1 km resolution in 2000-2014 in Ebinur Lake Basin，
MVC method was applied to make up the 12-year maximum NDVI（ Normalized Difference Vegetation Index，
NDVI） and combined with the meteorological factors（ precipitation，temperature data） of 20 weather stations，the
variation trend of NDVI and its response to precipitation and mean temperature in the Ebinur Lake Basin from 2000
to 2014 were analyzed. The results showed that the average of NDVI improved from 2000 to 2014，among them，the
slight increase area accounted for 82.97%，the slight decrease and the obvious reduction area accounted for 2.11%，
0.27% respectively，which showed better vegetation improvement. At the inter-annual variability level，the results
of linear correlation and two-dimensional spatial analysis showed that there was a positive correlation between NDVI
and precipitation，while a negative correlation between NDVI and temperature in the study area generally. At the
same time，the response degree of precipitation to NDVI was higher than that of temperature，the linear correlation
coefficients between NDVI and precipitation and temperature were R2 = 0.95 and R2 = 0.81 respectively. Using remote
sensing technology to study the trend of NDVI changes in Ebinur lake in the long time，it has theoretical and practical
significance for the protection of local ecological security. |
|
查看/发表评论 下载PDF阅读器 |
