| 粮食重视面积提取方法的发展与现状 |
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| 引用本文： | 康晓风、王乃斌.粮食重视面积提取方法的发展与现状[J].资源科学,2002,24(5):8-12. |
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| 作者姓名： | 康晓风、王乃斌 |
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| 作者单位： | 中国科学院地理科学与资源研究所,北京,100101 |
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| 基金项目： | 国家发展计划委员会高技术产业化示范项目“北京精准农业示范工程”———“作物长势、病虫害遥感监测研究”课题 (编
号 :A0 0 3 0 0 10 0 5 84 RS0 2 )资助 |
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| 摘 要： | 粮食估产是我国长期以来进行的一项重要课题。近年来随着计算机技术和GPS技术的迅速发展，在种植面积提取方法上有了较大的进展。该文结合RS、GIS、GPS一体化体系，对农情采样系统的理论依据与工作方法进行了深入研究，在总结以往采样工作的基础上，提出了对统计资料进行一致性检验，分区建立采样线的方法。同时提出了用GIS归纳方法建立样线BUFFER区模型，从理论方面对采样方法进行讨论，从而完善了整个系统的理论基础。
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| 关 键 词： | 农作物估产 播种面积 采样线 BUFFER GVG |
| 文章编号： | 1007-7588(2002)05-0008-05 |
PROGRESS OF INFORMATION EXTRACTION METHODS FOR CROP PLANTING AREA |
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| KANG Xiao-feng,WANG Nai bin,YANG Xiao huan.PROGRESS OF INFORMATION EXTRACTION METHODS FOR CROP PLANTING AREA[J].Resources Science,2002,24(5):8-12. |
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| Authors: | KANG Xiao-feng WANG Nai bin YANG Xiao huan |
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| Abstract: | During the past years, crop yield estimation has gained increasing concerns within scientific literature of China and quite a few of them are devoted to methods for crop area estimation, which deeply concerns with the crop yield. Apparently, the fast development of computer technology and GPS has contributed a lot to the estimation methods. After reviewing the several systems for yield estimation, a new method for information extraction is proposed. The two important aspects of this new method are taking coherence test on statistical data and defining different sampling lines according to different regions. Furthermore, we propose the sample line buffer model, a new method that is supposed to enrich the theoretical bases of crop yield estimation system. |
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| Keywords: | Crop yield estimation Crop area Sample line Buffer GVG |
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