摘要
【目的/意义】通过对福建省2000-2017年植被NDVI的变化特点进行分析,从宏观上研究福建省植被覆盖的变化情况及趋势特征。【方法/过程】使用ArcGIS和Excel软件,通过趋势线分析法、稳定性分析法和叠加分析法对福建省2000-2017年MOD13Q1NDVI数据集、三种主要土地类型和DEM数据进行处理并分析。【结果/结论】结果表明:2000-2017年福建省年均NDVI和各季节NDVI呈稳定增长趋势,植被轻微改善面积与显著改善的面积超过总面积的70.00%;近18年福建省草地、耕地、林地3种土地类型NDVI值在年际变化上均呈现出改善的趋势,其中,林地和草地改善面积超过各自土地类型面积的70.00%,增加趋势明显;近18年福建省植被变异系数小于5.00%的面积比例为59.09%,植被稳定性较高;福建省植被NDVI随高程的上升而增加,增长速度随海拔高度的上升呈现先增加后放缓的趋势。
【Objective/Meaning】Through the analysis of the characteristics of NDVI in Fujian Province from 2000 to 2017,the changing trends of vegetation coverage in Fujian were studied from the macro perspective.【Methods/Procedures】Using ArcGIS and Excel software,the MOD13Q1 NDVI data set,NDVI of three main land types and DEM data of Fujian Province from 2000 to 2017 were processed and analyzed by trend line,stability and superposition analysis.【Results/Conclusions】The annual and seasonal NDVI of Fujian showed steady growth from 2000 to 2017,and the area of vegetation slightly or significantly improved was over 70.00%of the total area;The NDVI of grassland,cultivated land and forest land in Fujian Province were improved in the interannual variation in the past 18 years.Among them,the improved area of forest land and grassland exceeded 70.00%of the corresponding land type area with significant increasing trend;The vegetation area with NDVI variation coefficient less than 5.00%in Fujian Province was 59.09%in recent 18 years,indicating high stability;The NDVI of Fujian increased with the elevation,and the growth rate increased firstly and then slowed down with the increase of elevation.
作者
康冬
陈传明
王强
KANG Dong;CHEN Chuan-ming;WANG Qiang(Institute of Geography,Fujian Normal University,Fuzhou,Fujian 350007,China;Key Laboratory for Humid Subtropical Eco-geographical Process of the Ministry of Education,Fujian Normal University,Fuzhou,Fujian 350007,China;College of Geographical Science,Fujian Normal University,Fuzhou,Fujian 350007,China)
出处
《台湾农业探索》
2018年第6期25-31,共7页
Taiwan Agricultural Research
基金
国家自然科学基金项目(41671126)
