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当前位置: 首页 > 文章 > 基于GF-1与Landsat 8遥感数据的耕地表层土壤有机质含量反演精度对比研究 浙江农业学报 2017,29 (1) 137-143
Position: Home > Articles > Comparison on inversion accuracy of soil organic matter in surface layer based on GF-1 and Landsat 8 remote sensing data Acta Agriculturae Zhejiangensis 2017,29 (1) 137-143

基于GF-1与Landsat 8遥感数据的耕地表层土壤有机质含量反演精度对比研究

作  者：
马驰
单  位：
辽宁省交通高等专科学校测绘工程系
关键词：
高分一号;Landsat 8;土壤有机质;定量反演
摘  要：
以GF-1和Landsat 8遥感影像为数据源,以依安县、拜泉县为研究对象,结合研究区土壤采样的化验数据,比较2种遥感影像在反演土壤有机质含量方面的能力与差异。结果表明,2种遥感影像在可见光与近红外波段的反射率与土壤有机质含量显著相关,且在近红外波段相关性最大,利用GF-1近红外波段建立的指数模型比利用Landsat 8近红外波段建立的幂模型估测效果略好。引入蓝波段(深蓝波段)、红波段建立起来的多元回归模型比单波段模型具有更高的反演精度,尤以对Landsat 8遥感影像的改善效果更明显。与Landsat 8相比,GF-1遥感影像具有更高的空间分辨率和更短的重访周期,在土壤有机质含量的探测方面具有相近的预测能力,可以替代Landsat 8遥感影像。
译  名：
Comparison on inversion accuracy of soil organic matter in surface layer based on GF-1 and Landsat 8 remote sensing data
作  者：
MA Chi;Department of Surveying and Mapping Engineering,Liaoning Provincial College of Communications;
关键词：
GF-1;;Landsat 8;;soil organic matter;;quantitative inversion
摘  要：
In the present study,GF-1 and Landsat 8 remote sensing data for Yi'an County and Baiquan County were adopted along with laboratory tested data of soil sample to reveal the feasibility and differences of application of GF-1and Landsat 8 in soil organic matter inversion. It was shown that the reflectivity of remote sensing images was significantly associated with soil organic matter content in the visible and near-infrared band,and the correlation coefficient reached the maximum in the near-infrared band. The exponential model based on near-infrared band of GF-1 was better than the power model based on near-infrared band of Landsat 8 in estimating soil organic matter content. Blue(deep blue) and red band were introduced into multiple regression model to enhance the ability of estimating organic matter content,and it was especially beneficial for Landsat 8. In short,GF-1 exhibited a higher spatial resolution,shorter revisit cycle and similar predictive ability as compared to Landsat 8,and thus was able to replace Landsat 8 in soil organic matter inversion.

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