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| 利用GVG线采样技术提取农作物种植面积及其精度分析 | |
| 引用本文： | 蒋雪中,赵锐,李强子,吴炳方,何隆华.利用GVG线采样技术提取农作物种植面积及其精度分析[J].南京气象学院学报,2002,25(1):78-83. |
| 作者姓名： | 蒋雪中 赵锐 李强子 吴炳方 何隆华 |
| 作者单位： | 1. 南京大学,城市与资源学系,江苏,南京,210093 2. 南京大学,城市与资源学系,江苏,南京,210093;中国科学院,南京地理与湖泊研究所,江苏,南京,210008 3. 中国科学院,遥感应用研究所,北京,100101 4. 中国科学院,南京地理与湖泊研究所,江苏,南京,210008 |
| 基金项目： | 中国科学院“九五”重大与特别支持项目(KZ95T-03-03-03)，地理信息科学江苏省重点实验室基金 |
| 摘 要： | GVG(GIS&Video&GPS)线采样系统提出以线状样区代替以往成数抽样中的点样区与面积样区概念,通过统计线状样区内作物种植面积成数来反映区域总体农作物种植面积成数。通过 GVG实地采样,将其结果与解译遥感影像提取的作物种植面积成数结果进行了对比分析,结果显示采用GVG线采样方式精确度较高,其采样系统具有实用性和推广价值。 |
| 关 键 词： | GVG线采样 农作物 种植面积 信息提取 遥感 线状样区 |
| 文章编号： | 1000-2022(2002)01-0078-06 |
| 修稿时间： | 2001年6月1日 |
Extraction of Crop Acreage Using GVG System and Its Precision Analysis |
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| JIANG Xue-zhong,ZHAO Rui,LI Qiang-zi,WU Bin-fang,HE Long-hua.Extraction of Crop Acreage Using GVG System and Its Precision Analysis[J].Journal of Nanjing Institute of Meteorology,2002,25(1):78-83. | |
| Authors: | JIANG Xue-zhong ZHAO Rui LI Qiang-zi WU Bin-fang HE Long-hua |
| Abstract: | The GVG system is a new solution,with the conception of sampling lineage instead of the traditional sampling point or sampling area,to extracting crop acreage information. By calculating the crop acreage proportion to total arable land within the linear sample zone, we can obtain the total acreage percentage of different crops over the same agriculture district which has the same planting patterns. The another purpose of this text is to compare the data obtained by using GVG sampling lineage over a paddy test site centered on Longdu, Jiangning County(Jiangsu Province, China) and by extracting the information from Landsat 7 ETM+ imagery acquired during the period of paddy peak biomass. Preliminary analysis on the results indicates that the GVG sampling system provides the best solution for its efficiency and economy. |
| Keywords: | GVG sampling lineage crop acreage information extraction remote sensing |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |