GEE支持下的河南省冬小麦面积提取及长势监测
周珂,柳乐,张俨娜,苗茹,杨阳

Area Extraction and Growth Monitoring of Winter Wheat in Henan Province Supported by Google Earth Engine
ZHOU Ke,LIU Le,ZHANG YanNa,MIAO Ru,YANG Yang
表5 河南省冬小麦主要种植区域的遥感提取的播种面积与统计的播种面积比较
Table 5 Comparison between the sown area extracted by remote sensing and the statistical sown area in the main planting areas of winter wheat in Henan province
特征 Feature 2017-2018 2018-2019
光谱+地形+纹理+NDVI
Spectrum + topography + texture + NDVI

City
提取面积
Extraction area (hm2)
统计面积
Statistical area (hm2)
绝对误差
Absolute error (hm2)
相对误差
Relative error (%)
提取面积
Extraction area (hm2)
统计面积
Statistical area (hm2)
绝对误差
Absolute error (hm2)
相对误差
Relative error (%)
南阳 Nanyang 803278 709020 94258 13.29 771926 724660 47266 4.09
驻马店 Zhumadian 929103 750520 178583 23.79 914174 781670 132504 16.95
周口 Zhoukou 846381 718350 128031 17.82 893891 734380 159511 21.72
商丘 Shangqiu 611644 588870 22774 3.87 705349 603380 101969 16.90
开封 Kaifeng 330408 299920 30488 10.16 322177 305200 16977 5.50
许昌 Xuchang 238458 228960 9498 4.15 226581 233010 6429 2.76
新乡 Xinxiang 442132 379410 62722 16.53 437147 387670 49477 12.76
安阳 Anyang 307150 320380 13230 7.22 305831 325730 19539 6.00
光谱+地形+纹理+ NDVI+NDVI增幅
Spectrum + topography +texture+NDVI+
NDVIincrease
南阳 Nanyang 721819 709020 12799 1.81 695001 724660 29659 4.09
驻马店 Zhumadian 849960 750520 9944 13.25 834591 781670 52921 6.77
周口 Zhoukou 809734 718350 91384 12.72 808415 734380 74035 10.08
商丘 Shangqiu 575660 588870 13210 2.24 629586 603380 26206 4.34
开封 Kaifeng 300274 299920 354 0.12 316275 305200 11075 3.63
许昌 Xuchang 230127 228960 1167 0.51 224240 233010 8770 3.76
新乡 Xinxiang 427995 379410 485.85 12.80 41784 387670 30170 7.78
安阳 Anyang 313655 320380 6725 2.10 304353 325730 11377 3.49