河南省冬小麦种植面积遥感监测及其时空特征研究
【目的】准确实现河南省冬小麦种植面积的遥感提取,并探索河南省冬小麦种植面积的变化过程。【方法】将遥感监测与统计数据结合,以多时相MODIS遥感影像作为数据源,分析制定了冬小麦信息的提取规则,利用统计数据辅助确定规则中的阈值选取,以减少阈值选取的主观性,提取出河南省2004—2013年冬小麦种植面积,并分析了河南省2004—2013年冬小麦种植面积的时空变化。【结果】遥感监测结果与各地市统计值具有较高的相关性(R2=0.938 5),在平原地区具有较高的精度,监测精度为89.5%,而在受到地形等因素影响的地区,冬小麦种植面积的分布相对破碎,监测精度具有较大误差,个别地区甚至不足50%。从空间上看...
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| Published in | Guanʻgai paishui xuebao Vol. 38; no. 9; pp. 49 - 54 |
|---|---|
| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
Xinxiang City
Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
01.09.2019
华北水利水电大学测绘与地理信息学院,郑州,450046%河南财经政法大学资源与环境学院,郑州,450046 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1672-3317 |
| DOI | 10.13522/j.cnki.ggps.2019030 |
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| Abstract | 【目的】准确实现河南省冬小麦种植面积的遥感提取,并探索河南省冬小麦种植面积的变化过程。【方法】将遥感监测与统计数据结合,以多时相MODIS遥感影像作为数据源,分析制定了冬小麦信息的提取规则,利用统计数据辅助确定规则中的阈值选取,以减少阈值选取的主观性,提取出河南省2004—2013年冬小麦种植面积,并分析了河南省2004—2013年冬小麦种植面积的时空变化。【结果】遥感监测结果与各地市统计值具有较高的相关性(R2=0.938 5),在平原地区具有较高的精度,监测精度为89.5%,而在受到地形等因素影响的地区,冬小麦种植面积的分布相对破碎,监测精度具有较大误差,个别地区甚至不足50%。从空间上看,河南省冬小麦种植面积的空间分布总体较为集中,主要分布在河南中东部的黄河平原和淮河平原地区和豫西南的南阳盆地地区。从时间上看,河南省冬小麦种植区域总体变化较小,种植年份较为稳定的区域主要分布于豫东平原地区,累积种植年数显著增加地区主要分布于南阳盆地地区,累积种植年数显著减少地区的分布较为分散,无明显的分布趋势。【结论】基于遥感和统计数据相结合的方法可准确监测平原区冬小麦种植面积,河南省冬小麦种植面积的时空变化均较为稳定,为保障我国粮食安全发挥着重要作用。 |
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| AbstractList | 【目的】准确实现河南省冬小麦种植面积的遥感提取,并探索河南省冬小麦种植面积的变化过程。【方法】将遥感监测与统计数据结合,以多时相MODIS遥感影像作为数据源,分析制定了冬小麦信息的提取规则,利用统计数据辅助确定规则中的阈值选取,以减少阈值选取的主观性,提取出河南省2004—2013年冬小麦种植面积,并分析了河南省2004—2013年冬小麦种植面积的时空变化。【结果】遥感监测结果与各地市统计值具有较高的相关性(R2=0.938 5),在平原地区具有较高的精度,监测精度为89.5%,而在受到地形等因素影响的地区,冬小麦种植面积的分布相对破碎,监测精度具有较大误差,个别地区甚至不足50%。从空间上看,河南省冬小麦种植面积的空间分布总体较为集中,主要分布在河南中东部的黄河平原和淮河平原地区和豫西南的南阳盆地地区。从时间上看,河南省冬小麦种植区域总体变化较小,种植年份较为稳定的区域主要分布于豫东平原地区,累积种植年数显著增加地区主要分布于南阳盆地地区,累积种植年数显著减少地区的分布较为分散,无明显的分布趋势。【结论】基于遥感和统计数据相结合的方法可准确监测平原区冬小麦种植面积,河南省冬小麦种植面积的时空变化均较为稳定,为保障我国粮食安全发挥着重要作用。 S512.1; [目的]准确实现河南省冬小麦种植面积的遥感提取,并探索河南省冬小麦种植面积的变化过程.[方法]将遥感监测与统计数据结合,以多时相MODIS遥感影像作为数据源,分析制定了冬小麦信息的提取规则,利用统计数据辅助确定规则中的阈值选取,以减少阈值选取的主观性,提取出河南省2004—2013年冬小麦种植面积,并分析了河南省2004—2013年冬小麦种植面积的时空变化.[结果]遥感监测结果与各地市统计值具有较高的相关性(R2=0.9385),在平原地区具有较高的精度,监测精度为89.5%,而在受到地形等因素影响的地区,冬小麦种植面积的分布相对破碎,监测精度具有较大误差,个别地区甚至不足50%.从空间上看,河南省冬小麦种植面积的空间分布总体较为集中,主要分布在河南中东部的黄河平原和淮河平原地区和豫西南的南阳盆地地区.从时间上看,河南省冬小麦种植区域总体变化较小,种植年份较为稳定的区域主要分布于豫东平原地区,累积种植年数显著增加地区主要分布于南阳盆地地区,累积种植年数显著减少地区的分布较为分散,无明显的分布趋势.[结论]基于遥感和统计数据相结合的方法可准确监测平原区冬小麦种植面积,河南省冬小麦种植面积的时空变化均较为稳定,为保障我国粮食安全发挥着重要作用. |
| Author | Yichang, WEI ZHANG, Fu LI Chunjing LIU, Wenyu DENG Rongxin WANG, wenjuan |
| AuthorAffiliation | 华北水利水电大学测绘与地理信息学院,郑州,450046%河南财经政法大学资源与环境学院,郑州,450046 |
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| Author_FL | WEI Yichang LI Chunjing LIU Wenyu ZHANG Fu WANG wenjuan DENG Rongxin |
| Author_FL_xml | – sequence: 1 fullname: DENG Rongxin – sequence: 2 fullname: WANG wenjuan – sequence: 3 fullname: WEI Yichang – sequence: 4 fullname: ZHANG Fu – sequence: 5 fullname: LI Chunjing – sequence: 6 fullname: LIU Wenyu |
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| Copyright | Copyright Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage 2019 Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| Snippet | 【目的】准确实现河南省冬小麦种植面积的遥感提取,并探索河南省冬小麦种植面积的变化过程。【方法】将遥感监测与统计数据结合,以多时相MODIS遥感影像作为数据源,分析制定了... S512.1; [目的]准确实现河南省冬小麦种植面积的遥感提取,并探索河南省冬小麦种植面积的变化过程.[方法]将遥感监测与统计数据结合,以多时相MODIS遥感影像作为数据源,分析制... |
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| SubjectTerms | Food availability Food security Remote sensing Rivers Spatial distribution Spatiotemporal data Statistics Temporal distribution Temporal variations Triticum aestivum Wheat Winter wheat |
| Title | 河南省冬小麦种植面积遥感监测及其时空特征研究 |
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