Remote sensing monitoring of maize planting area at town level

被引:0
|
作者
Guo W. [1 ,2 ,3 ]
Zhao C. [2 ]
Gu X. [2 ]
Huang W. [2 ]
Ma Z. [2 ]
Wang H. [2 ]
Wang D. [2 ]
机构
[1] College of Forestry, Beijing Forestry University
[2] Beijing Research Center for Information Technology in Agriculture
[3] College of Information and Management Science, Henan Agriculture University
关键词
Maize; Model; Monitoring; Multi-layers decision tree; Object spectral characteristics; Planting area; Remote sensing; Town level;
D O I
10.3969/j.issn.1002-6819.2011.09.014
中图分类号
学科分类号
摘要
In order to extract maize planting acreage rapidly and accurately, taking Changchun city in Jilin province as study area, a multi-layer decision tree classification model was constructed based on multi-temporal HJ-1A/1B CCD images and digital elevation model (DEM), which introduced with multi-information including planting structure, phenological characteristics, terrain feature of the study area, spectral characteristics and vegetation index. The precision of classification results was evaluated by spatial agricultural census data at town level. The results indicated that the method could improve maize identification accuracy, which reached up to 92.57%. The method can meet the demand for large-scale and multi-temporal agricultural monitoring system and resolve the spatiotemporal contradiction effectively in the large-scale crop acreage monitoring system.
引用
收藏
页码:69 / 74
页数:5
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