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基于雷达植被指数的水土流失区植被覆盖度估测

DOI: 10.6046/gtzyyg.2015.04.25, PP. 165-170

Keywords: 植被覆盖度,雷达植被指数,像元二分模型,极化分解,长汀县

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Abstract:

植被覆盖度是描述水土流失程度的重要指标。像元二分模型假设一个像元代表的信息来自土壤和植被2部分,植被信息占整个像元面积的百分比为植被覆盖度。对Radarsat-2数据进行极化分解,得到反映植被疏密程度的雷达植被指数,结合像元二分模型估测植被覆盖度。将基于雷达植被指数的像元二分模型应用于水土流失重点治理区域——福建省长汀县河田镇,并以高分辨率光学影像WorldView-2计算的植被覆盖度作为参考,结合无人机高分影像和实地考察资料对结果进行精度验证。结果表明,估测结果与验证数据具有较好的相关性(R2>0.8),表明该模型可以用于植被覆盖度的估测;完全基于雷达数据估测植被覆盖度的算法,克服了南方多云雨地区数据不易获取的困难,有助于对水土流失的连续监测。

References

[1]  Gitelson A A, Kaufman Y J, Stark R, et al.Novel algorithms for remote estimation of vegetation fraction[J].Remote Sensing of Environment, 2002, 80(1):76-87.
[2]  Purevdorj T, Tateishi R, Ishiyama T.Relationships between percent vegetation cover and vegetation indices[J].International Journal of Remote Sensing, 1998, 19(18):3519-3535.
[3]  哈德逊.土壤保持[M].北京:科学出版社, 1975:2-3. Hudson N W.Soil Conservation[M].Beijing:Science Press, 1975:2-3.
[4]  邹军, 张明礼, 杨浩.退耕还林(草)与水土保持若干问题的研究进展[J].土壤通报, 2012, 43(2):506-512. Zhou J, Zhang M L, Yang H.Grain for green vegetation of forestry and grass water and soil conversation[J].Chinese Journal of Soil Science, 2012, 43(2):506-512.
[5]  贾坤, 姚云军, 魏香琴, 等.植被覆盖度遥感估算研究进展[J].地球科学进展, 2013, 28(7):774-782. Jia K, Yao Y J, Wei X Q, et al.A review on fractional vegetation cover estimation using remote sensing[J].Advances in Earth Science, 2013, 28(7):774-782.
[6]  江洪, 王钦敏, 汪小钦.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, 166. 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, 166.
[7]  李苗苗, 吴炳方, 颜长珍, 等.密云水库上游植被覆盖度的遥感估算[J].资源科学, 2004, 26(4):153-159. Li M M, Wu B F, Yan C Z, et al.Estimation of vegetation fraction in the upper basin of Miyun reservoir by remote sensing[J].Resources Science, 2004, 26(4):153-159.
[8]  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.
[9]  Capodici F, Durso G, Maltese A.Investigating the relationship between X-band SAR data from COSMO-SkyMed satellite and NDVI for LAI detection[J].Remote Sensing, 2013, 5(3):1389-1404.
[10]  徐茂松, 张风丽, 夏忠胜, 等.植被雷达遥感方法与应用[M].北京:科学出版社, 2012. Xu M S, Zhang F L, Xia Z S.The Methods and Application of Vegetaion Radar[M].Beijing:Science Press, 2012.
[11]  王庆, 曾琪明, 廖静娟.基于极化分解的极化特征参数提取与应用[J].国土资源遥感, 2012, 24(3):103-110. Wang Q, Zeng Q M, Liao J J.Extraction and application of polarimetric characteristic parameters based on polarimetric decomposition[J].Remote Sensing for Land and Resources, 2012, 24(3):103-110.doi:10.6046/gtzyyg.2012.03.19.
[12]  Van Zyl J J.An overview of the analysis of multi-frequency polarimetric SAR data[C]//6th European Conference on Synthetic Aperture Radar.Dresden, Germany:[s.n.], 2006:16-18.
[13]  Ling F, Li Z, Chen E, et al.Comparison of ALOS PALSAR RVI and Landsat TM NDVI for forest area mapping[C]//2nd Asian-Pacific Conference on Synthetic Aperture Radar.Xi'an, China:IEEE, 2009:132-135.
[14]  Settle J J, Drake N A.Linear mixing and the estimation of ground cover proportions[J].International Journal of Remote Sensing, 1993, 14(6):1159-1177.
[15]  Leprieur C, Verstraete M M, Pinty B.Evaluation of the performance of various vegetation indices to retrieve vegetation cover from AVHRR data[J].Remote Sensing Reviews, 1994, 10(4):265-284.
[16]  Gutman G, Ignatov A.The derivation of the green vegetation fraction from NOAA/AVHRR data for use in numerical weather prediction models[J].International Journal of Remote Sensing, 1998, 19(8):1533-1543.
[17]  Qi J, Marsett R C, Moran M S, et al.Spatial and temporal dynamics of vegetation in the San Pedro river basin area[J].Agricultural and Forest Meteorology, 2000, 105(1/3):55-68.
[18]  牛宝茹, 刘俊蓉, 王政伟, 等.干旱半干旱地区植被覆盖度遥感信息提取研究[J].武汉大学学报:信息科学版, 2005, 30(1):27-30. Niu B R, Liu J R, Wang Z W, et al.Remote sensing information extraction based on vegetation fraction in drought and half-drought area[J].Geomatics and Information Science of Wuhan University, 2005, 30(1):27-30.
[19]  李苗苗.植被覆盖度的遥感估算方法研究[D].北京:中国科学院遥感应用研究所, 2003. Li M M.The Method of Vegetation Fraction Estimation by Remote Sensing[D].Beijing:Institute of Remote Sensing Application, Chinese Academy of Sciences, 2003.
[20]  徐涵秋, 何慧, 黄绍霖.福建省长汀县河田水土流失区植被覆盖度变化及其热环境效应[J]. 生态学报, 2013, 33(10):2954- 2963. Xu H Q, He H, Huang S L.Analysis of fractional vegetation cover change and its impact on thermal environment in the hetian basinal area of county Changting, Fujian Province, China[J].Acta Ecologica Sinica, 2013, 33(10):2954-2963.
[21]  Lee J S, Pottier E. Polarimetric Radar Imaging:From Basics to Applications[M].New York:Taylor & Francis, 2009:254-257.
[22]  Cloude S R, Pottier E.A review of target decomposition theorems in radar polarimetry[J].IEEE Transactions on Geoscience and Remote Sensing, 1996, 34(2):498-518.
[23]  Van Zyl J J, Zebker H A, Elachi C.Imaging Radar polarization signatures:Theory and observation[J].Radio Science, 1987, 22(4):529-543.
[24]  Carlson T N, Ripley D A.On the relation between NDVI, fractional vegetation cover, and leaf area index[J].Remote Sensing of Environment, 1997, 62(3):241-252.
[25]  Rundquist B C.The influence of canopy green vegetation fraction on spectral measurements over native tallgrass prairie[J].Remote Sensing of Environment, 2002, 81(1):129-135.

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