WANG Yong-hao,LIU Xue-lu,WANG Yong-hong.Characteristic Scale of Eastern Qilian MountainousLandscape Based on Semivariance Analysis[J].HEILONGJIANG AGRICULTURAL SCIENCES,2011,(02):135-140.
基于半方差分析的东祁连山地景观特征尺度
- Title:
- Characteristic Scale of Eastern Qilian MountainousLandscape Based on Semivariance Analysis
- 文章编号:
- 1002-2767(2011)02-0135-06
- Keywords:
- characteristic scale; eastern Qilian mountain; semivariance analysis; mountainous landscape
- 分类号:
- Q149
- 文献标志码:
- A
- 摘要:
- 采用美国陆地资源卫星3个时相的遥感图像,运用半方差分析的方法,对东祁连山地景观特征尺度进行研究。结果表明:(1)步长增大时,东祁连山地景观的特征尺度相应增大,但增加的幅度在时间上和方向上存在显著差异,若步长继续增大至数千米以上时,则不能较好地表现出景观格局的自相关性;(2)变程可有效地揭示出东祁连山地景观结构的各向异性,左对角方向上的特征尺度较大,景观结构的异质性最小,垂直、水平两个方向上的特征尺度较小,景观结构的异质性较高;(3)全球气候变暖及人为活动等生态过程对东祁连山地景观结构的异质性有明显影响,使得研究区景观格局的空间相关性减弱。
- Abstract:
- By interpreting three remote sense images of Terra satellites of USA,the characteristic scale of Eastern Qilian mountainous landscape was analyzed based on semivariance analysis.The results showed the characteristic scale of Eastern Qilian mountainous landscape increased with the step size increasing,but the increased extent had significant difference in timing and direction,if the step size continued to increase to above thousands meters,the autocorrelation of landscape was not showed very well;the changing rate could effectively reveal the anisotropy of the structure of Eastern Qilian mountainous landscape,the characteristic scale was quite great in the left diagonal directions,and the heterogeneity of landscape pattern was the smallest,while the smaller characteristic scale and a high heterogeneity of landscape pattern in both horizontal and vertical directions.The ecological processes such as global warming and human activities had a significant effect on the heterogeneity of Eastern Qilian mountainous landscape pattern,which weaken the spatial correlation of landscape pattern.
参考文献/References:
[1]张娜.生态学中的尺度问题 : 内涵与分析方法[J]. 生态学报,2006 ,26(7):2340 - 2355. [2]Wiens J A.Spatial scaling in ecology[J].Functional Ecology,1989,3:385-397. [3]赵文武,傅伯杰,陈利项.尺度推绎研究中的几点基本问题[J].地球科学展,2002,17(6):905-911. [4]郁文,刘茂松,徐驰,等.南京市城市景观的特征尺度[J].生态学报,2007,27(4):1480-1488. [5]刘茂松,张明娟.景观生态学——原理与方法[M].北京:化学工业出版社,2004. [6]Wu J G,Jelinski E J,Luck M,et al.Multiscale analysis of landscape heterogeneity:Scale variance and pattern met-rics[J].Geographic Information Sciences,2002,6:6-16. [7]Jeo E Meisel,Monica G Turner.Scale detection in real and artificial landscapes using semivariance analysis[J].Landscape Ecology,1998,13:347-362. [8]Sanderson E W,Zhang M,Ustin S L,et al.Geostatistical scaling of canopy water content in a California salt marsh[J].Land-scape Ecology,1998,13:79-92. [9]Woodcock C E,Strahler A,Hand Jupp D L B.The use of variograms in remote sensing.Ⅱ:Real digital images[J].Remote Sensing of Environment,1988,25:349-379. [10]Cohen W B,Spies T A,Bradshaw G A.Semivarigrams of digital imagery foe analysis of conifer canopy structure[J].Remote sensing of environment,1990,34:167-178. [11]蔡博峰,于嵘.北京市亦庄新城植被空间尺度特征分析[J].辽宁工程技术大学学报(自然科学版),2008,27(5):788-791. [12]孙丹峰.IKONOS影像景观格局特征尺度的小波与半方差分析[J].生态学报,2003,23(3):405-403. [13]蔡博峰,于嵘.景观生态学中的尺度分析方法[J].生态学报,2008,28(5):2281-2287. [14]吕一河,傅伯杰.生态学中的尺度及尺度推绎方法[J].生态学报,2001,21(12):2096-2105. [15]申广荣,王丽荣,钱振华.高分辨率图像景观特征尺度的小波和地统计分析[J].上海交通大学学报(农业科学版),2007,25(5):431-437. [16]刘学录,任继周.河西走廊山地-绿洲-荒漠复合生态系统的景观多样性[J].草业学报,2003,12(4):100-103. [17]陈俭煌,魏晓妹.石羊河流域水资源问题及其对策[J].干旱地区农业研究,2005,23(1):197-198. [18]张杰,李栋梁.祁连山及黑河流域降雨量的分布特征分析[J].高原气象,2004,23(1):81-89. [19]张存杰,郭妮.祁连山区近40年气候变化特征[J].气象,2003,28(12):33-46.
备注/Memo
第一作者简介: 王永豪(1983-),男,甘肃省民勤县人,在读硕士,从事景观生态学研究。E-mail:360241082@qq.com。