河南省冬小麦种植频率时空变化及影响因素分析
李方杰,任建强,吴尚蓉,陈仲新,张宁丹

Spatio-Temporal Variations of Winter Wheat Planting Frequency and Their Analysis of Influencing Factors in Henan Province
FangJie LI,JianQiang REN,ShangRong WU,ZhongXin CHEN,NingDan ZHANG
表1 河南省冬小麦分布提取样点数量(2001—2015年)
Table 1 Number of samples for winter wheat area extraction in Henan province (2001-2015)
年份
Year
地面样点 Ground samples Google Earth样点 Google Earth samples 训练样点 Training samples
冬小麦
Winter wheat
非冬小麦
Non-winter wheat
总计
Total
冬小麦
Winter wheat
非冬小麦
Non-winter wheat
总计
Total
冬小麦
Winter wheat
非冬小麦
Non-winter wheat
总计
Total
2001 1145 1073 2218 295 423 718
2002 1165 1118 2283 315 468 783
2003 1155 1101 2256 305 451 756
2004 1095 1150 2245 245 500 745
2005 1100 1117 2217 250 467 717
2006 39 42 81 1129 1081 2210 318 473 791
2007 53 54 107 1027 1026 2053 230 430 660
2008 44 41 85 1027 1024 2051 221 415 636
2009 47 45 92 1043 1115 2158 240 510 750
2010 45 45 90 1015 1105 2120 210 500 710
2011 51 53 104 1049 1022 2071 250 425 675
2012 57 58 115 1073 1057 2130 280 465 745
2013 62 60 122 1023 999 2022 235 409 644
2014 69 71 140 998 1006 2004 217 427 644
2015 71 70 141 984 995 1979 205 415 620