庐山自然保护区不同功能区植被动态变化格局分析
|
摘要
借助RS、GIS和景观分析工具,利用1992、2015年Landsat TM/OLI影像计算归一化差值植被指数(NDVI),对庐山自然保护区植被动态变化进行分析,并利用景观指数按增加、减少和无变化3种类型模拟变化格局,并不同功能区的植被动态及其变化格局的空间分异性进行对比。结果表明:保护区内的植被基本保持稳定并得到改善;核心区的植被稳定类型主要集中于中心,增加类型聚集在区域边缘;缓冲区的植被动态呈现出了一定的集聚特征;实验区受附近村庄和旅游等人为活动影响,稳定性低、变化幅度较大、增加与减少共存。
In this paper,the Normalized Difference Vegetation Index(NDVI)was extracted from Landsat TM/OLI images in 1992 and 2015 by RS,GIS and landscape analysis tools.The dynamic changes of vegetation in Lushan Nature Reserve were analyzed and the landscape pattern was simulated accoding to the three index patterns including increasing,decreasing and non-changing to compare the spatial dynamics of vegetation dynamics and their changing patterns in different functional areas.The results show that the vegetation in the reserve was basically stable and improved;the vegetation-stable types in the core area were mainly concentrated in the center,and the increasing types are concentrated in the edge of the region;the vegetation dynamics in the buffer area showed certain aggregation characteristics;the experimental area was affected by human activities such as nearby villages and tourism,and the stability was low and changable,and the increasing extent was larger,and the increasement and decreasement coexisted.
In this paper,the Normalized Difference Vegetation Index(NDVI)was extracted from Landsat TM/OLI images in 1992 and 2015 by RS,GIS and landscape analysis tools.The dynamic changes of vegetation in Lushan Nature Reserve were analyzed and the landscape pattern was simulated accoding to the three index patterns including increasing,decreasing and non-changing to compare the spatial dynamics of vegetation dynamics and their changing patterns in different functional areas.The results show that the vegetation in the reserve was basically stable and improved;the vegetation-stable types in the core area were mainly concentrated in the center,and the increasing types are concentrated in the edge of the region;the vegetation dynamics in the buffer area showed certain aggregation characteristics;the experimental area was affected by human activities such as nearby villages and tourism,and the stability was low and changable,and the increasing extent was larger,and the increasement and decreasement coexisted.
引文
[1]寇江泽.我国自然保护区占陆地面积近一成半[N].人民日报,2018-04-18(14).
[2]闫法领.广东龙川枫树坝省级自然保护区森林群落类型研究[J].安徽农业科学,2017,45(31):175-177.
[3]M.A.Burgman,D.B.Lindenmayer,J.Elith.Managing landscapes for conservation under uncertainty[J].Ecology,2005,86(8):2007-2017.
[4]黄丽华,许青,罗伟,等.基于NDMVI的庐山自然保护区植被覆盖度坡向分异研究[J].南方林业科学,2016,44(2):38-41.
[5]叶子君,欧阳宸曦,冯子悦,等.基于Hurst模型的庐山自然保护区植被覆盖优势及其可持续性分析[J].环境与可持续发展,2015,40(1):168-172.
[6]刘新中,王琅.江西省庐山自然保护区生物多样性考察与研究[M].科学出版社,2010:45-47.
[7]田庆久,闵祥军.植被指数研究进展[J].地球科学进展,1998,13(4):327-333.
[8]李晓兵,史培军.基于NOAA/AVHRR数据的中国主要植被类型NDVI变化规律研究[J].植物学报,1999,41(3):314-324.
[9]Tucker CJ.Red and photographic infrared linear combinations for monitoring vegetation[J].Remote Sensing of Environment,1979,8(2):127-150.
[10]周睿,王辉,葛剑平,等.松山自然保护区各功能区植被动态及变化格局[J].生物多样性,2006,14(6):470-478.
[11]韩月娇.基于RS的阜新地区自然生态修复监测研究[D].辽宁工程技术大学,2009:12-13.
[2]闫法领.广东龙川枫树坝省级自然保护区森林群落类型研究[J].安徽农业科学,2017,45(31):175-177.
[3]M.A.Burgman,D.B.Lindenmayer,J.Elith.Managing landscapes for conservation under uncertainty[J].Ecology,2005,86(8):2007-2017.
[4]黄丽华,许青,罗伟,等.基于NDMVI的庐山自然保护区植被覆盖度坡向分异研究[J].南方林业科学,2016,44(2):38-41.
[5]叶子君,欧阳宸曦,冯子悦,等.基于Hurst模型的庐山自然保护区植被覆盖优势及其可持续性分析[J].环境与可持续发展,2015,40(1):168-172.
[6]刘新中,王琅.江西省庐山自然保护区生物多样性考察与研究[M].科学出版社,2010:45-47.
[7]田庆久,闵祥军.植被指数研究进展[J].地球科学进展,1998,13(4):327-333.
[8]李晓兵,史培军.基于NOAA/AVHRR数据的中国主要植被类型NDVI变化规律研究[J].植物学报,1999,41(3):314-324.
[9]Tucker CJ.Red and photographic infrared linear combinations for monitoring vegetation[J].Remote Sensing of Environment,1979,8(2):127-150.
[10]周睿,王辉,葛剑平,等.松山自然保护区各功能区植被动态及变化格局[J].生物多样性,2006,14(6):470-478.
[11]韩月娇.基于RS的阜新地区自然生态修复监测研究[D].辽宁工程技术大学,2009:12-13.