Analysis of spatial-temporal change of Qiemo oasis vegetation coverage based on FCD model
CAI Heng1,2, WANG Jiegui3, YANG Ruixia1, LI Chao1,2, JI Wei1, WANG Xinyuan1
1. Key Laboratory of Digital Earth, Center for Earth Observation and Digital Earth, Chinese Academy of Sciences, Beijing 100094, China; 2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China; 3. College of National Territorial Resource and Tourism, Anhui Normal University, Wuhu 241000, China
Abstract：Using the TM images of Qiemo oasis, Xinjiang Uygur Autonomous Region, obtained in August of 1998, 2001, 2006 and 2011, the authors built the complex vegetation index VBSI based on FCD model. This index contains vegetation index (NDVI), bare soil index (BI), and shadow index (SI). Furthermore, the vegetation coverage in Qiemo oasis in 1998, 2001, 2006 and 2011 was calculated separately according to the dimidiate pixel principal and then the vegetation coverage graduation maps were compiled. Based on statistical diagrams and transfer matrices, the authors have drawn some conclusions: 1 The overall vegetation coverage area increased 742.62 km2 in the 13 years, and Qiemo oasis was expanding; 2 The vegetation coverage showed a fluctuation change during the period. Vegetation was restored well from 1998 to 2001 and from 2006 to 2011. The area of recovered vegetation (vegetation transferred to higher coverage) was 2.98 and 1.79 times the area of degraded vegetation (vegetation transferred to lower coverage) from 1998 to 2001 and from 2001 to 2006; Nevertheless, it degraded heavily from 2001 to 2006, the area of degraded vegetation was 435.3 km2, whereas the recovered vegetation area was only 5.41 km2; 3 The vegetation coverage change in Qiemo oasis was influenced by such factors as temperature, precipitation in spring and summer, population and anti-desertification projects.
蔡蘅, 王结贵, 杨瑞霞, 李超, 吉玮, 王心源. 基于FCD模型的且末绿洲植被覆盖度时空变化分析[J]. 国土资源遥感, 2013, 25(2): 131-137.
CAI Heng, WANG Jiegui, YANG Ruixia, LI Chao, JI Wei, WANG Xinyuan. Analysis of spatial-temporal change of Qiemo oasis vegetation coverage based on FCD model. REMOTE SENSING FOR LAND & RESOURCES, 2013, 25(2): 131-137.
[1] 陈曦,罗格平.干旱区绿洲生态研究及其进展[J].干旱区地理,2008,31(4):487-495. Chen X,Luo G P.Researches and progress of oasis ecology in arid areas[J].Arid Land Geography,2008,31(4):487-495. [2] 刘静,银山,张国盛,等.毛乌素沙地17年间植被覆盖度变化的遥感监测[J].干旱区资源与环境,2009,23(7):162-167. Liu J,Yin S,Zhang G S,et al.Dynamic change of vegetation coverage of Mu Us sandland over the 17 years by remote sensing monitor[J].Journal of Arid Land Resources and Environment,2009,23(7):162-167. [3] 程红芳,章文波,陈锋.植被覆盖度遥感估算方法研究进展[J].国土资源遥感,2008,20(1):13-18. Cheng H F,Zhang W B,Chen F.Advances in researches on application of remote sensing method to estimating vegetation coverage[J].Remote Sensing for Land and Resources,2008,20(1):13-18. [4] Du P J,Li X L,Cao W,et al.Monitoring urban land cover and vegetation change by multi-temporal remote sensing information[J].Mining Science and Technology,2010,20(6):922-932. [5] 江洪,汪小钦,陈星.一种以FCD模型从SPOT影像中提取植被覆盖度的方法[J].地球信息科学,2005,7(4):113-116. Jiang H,Jiang X Q,Chen X.A method for abstraction of vegetation density from SPOT image[J].Geo-Information Science,2005,7(4):113-116. [6] 李晓琴,孙丹峰,张凤荣.北京山区植被覆被率遥感制图与景观格局分析——以门头沟区为例[J].国土资源遥感,2003,15(1):23-28. Li X Q,Sun D F,Zhang F R.The application of remote sensing and landscape pattern analysis to vegetation coverage mapping in mountain areas of Beijing:A case study of Mentougou district[J].Remote Sensing for Land and Resources,2003,15(1):23-28. [7] Gao Z F,Niu H P,Liu J P.Extraction of vegetation fraction information from CBERS images based on VBSI vegetation index in Kaixian county[J].Transactions of Nonferrous Metals Society of China,2011,21(s3):712-716. [8] 江洪,王钦敏,王小钦.福建省长汀县植被覆盖度遥感动态监测研究[J].自然资源学报,2006,21(1):126-132. Jiang H,Wang Q M,Wang X Q.Dynamic monitoring of vegetation fraction by remote sensing in Changting county of Fujian Province[J].Journal of Natural Resources,2006,21(1):126-132. [9] 张飞,塔西甫拉提·特依拜,丁建丽,等.新疆典型盐渍区植被覆盖度遥感动态监测——以渭干河-库车河三角洲绿洲为例[J].林业科学,2011,47(7):27-35. Zhang F,Tashpolat T,Ding J L,et al.Dynamically monitoring vegetation cover by remote sensing in the typical salinization region of Xinjiang:A case study in delta oasis of Weigan and Kuqa Rivers[J].Scientia Silvae Sinicae,2011,47(7):27-35. [10] Joshi C,De Leeuw J,Skidmore A K,et al.Remotely sensed estimation of forest canopy density:A comparison of the performance of four methods[J].International Journal of Applied Earth Observation and Geoinformation,2006,8(2):84-95. [11] 邢著荣,冯幼贵,杨贵军,等.基于遥感的植被覆盖度估算方法述评[J].遥感技术与应用,2009,24(6):849-854. Xing Z R,Feng Y G,Yang G J,et al.Method of estimating vegetation coverage based on remote sensing[J].Remote Sensing Technology and Application,2009,24(6):849-854. [12] 马娜,胡云峰,庄大方,等.基于遥感和象元二分模型的内蒙古正蓝旗植被覆盖度格局和动态变化[J].地理科学,2012,32(2):251-256. Ma N,Hu Y F,Zhuang D F,et al.Vegetation coverage distribution and its changes in Plan Blue Banner based on remote sensing data and dimidiate pixel model[J].Scientia Geographica Sinica,2012,32(2):251-256. [13] 李登科,范建忠,王娟.陕西省植被覆盖度变化特征及其成因[J].应用生态学报,2010,21(11):2896-2903. Li D K,Fan J Z,Wang J.Change characteristics and their causes of fractional vegetation coverage in Shanxi Province[J].Chinese Journal of Applied Ecology,2010,21(11):2896-2903. [14] 南颖,刘志锋,董叶辉,等.2000-2008年长白山地区植被覆盖变化对气候的响应研究[J].地理科学,2010,30(6):921-928. Nan Y,Liu Z F,Dong Y H,et al.The responses of vegetation cover to climate change in the Changbai Mountain area from 2000 to 2008[J].Scientia Geographica Sinica,2010,30(6):921-928. [15] 曹永翔,刘小丹,张克斌,等.青海省都兰县察汗乌苏绿洲植被覆盖度变化研究[J].中国沙漠,2011,31(5):1267-1272. Cao Y X,Liu X D,Zhang K B,et al.Vegetation coverage change of Tsagan Us oasis in Dulan county,Qinghai Province,China[J].Journal of Desert Research,2011,31(5):1267-1272. [16] 周志强,曾源,张磊,等.南水北调中线水源区植被覆盖度遥感监测分析[J].国土资源遥感,2012,24(1):70-76. Zhou Z Q,Zeng Y,Zhang L,et al.Remote sensing monitoring and analysis of fractional vegetation cover in the water source area of the middle route of projects to divert water from the South to the North[J].Remote Sensing for Land and Resources,2012,24(1):70-76. [17] 吴昌广,周志翔,肖文发,等.基于MODIS NDVI的三峡库区植被覆盖度动态监测[J].林业科学,2012,48(1):22-28. Wu C G,Zhou Z X,Xiao W F,et al.Dynamic monitoring of vegetation coverage in Three Gorges reservoir area based on MODIS NDVI[J].Scientia Silvae Sinicae,2012,48(1):22-28.
2013, Vol. 25 
