Remote Sensing Technology and Application, Volume. 39, Issue 2, 350(2024)
Monitoring Farmland Phenology Changes of Northeast China and Their Response to Climate in Early 21st Century
Figures & Tables(12)
Fig. 2. Spatial distribution of farmland phenology （SOS， EOS and LOS） during 2005
Fig. 3. Temporal patterns of farmland phenology （SOS， EOS and LOS） during 2005
Fig. 4. Interannual variation of farmland phenology （SOS， EOS and LOS） in NEC during 2005 to 2020
Fig. 5. Changes of the cropping structure during 2005-2020 in NEC.
Fig. 6. Temporal patterns of the NEC farmland phenology of cropping structure changing zone during 2005
Fig. 7. Temperature effects on farmland phenology of NEC during 2005
Fig. 8. Precipitation effects on farmland phenology of NEC during 2005
Fig. 9. Sunshine hours effects on farmland phenology of NEC during 2005
Table 1. Correspondence between remote sensing phenological parameters and traditional phenological observational time nodes
View tableView in ArticleTable 1. Correspondence between remote sensing phenological parameters and traditional phenological observational time nodes
遥感物候期参数名称 定义 对应农业
物候期名称
定义 参考文献 生长季开始 光合作用开始、绿叶面积开始上升的时期 出苗期 幼苗出土的前后时期 王敏钰等，
2022[
3 ]生长季结束 光合作用接近于0、绿叶面积降级至最小值的时期 成熟期 作物收获时期/作物叶片或茎杆发生规律性单调变化 生长季长度 生长季开始和结束期之间的时间长度
Table 2. Validation results of the farmland phenology（SOS、EOS、LOS）
View tableView in ArticleTable 2. Validation results of the farmland phenology（SOS、EOS、LOS）
生长季开始日期 生长季结束日期 生长季长度 r 0.65 0.58 0.63 RMSE （d） 6.5 7.1 6.6
Table 3. The percentage of correlation coefficients （*p<0.05） between phenology dates and temperature， precipitation and sunshine hours at climate stations/%
View tableView in ArticleTable 3. The percentage of correlation coefficients （*p<0.05） between phenology dates and temperature， precipitation and sunshine hours at climate stations/%
气温 降水 日照时数 正相关 负相关 正相关 负相关 正相关 负相关 SOS 9.80 32.09 4.26 55.65 7.51 5.63 EOS 5.23 42.85 35.02 14.37 6.78 30.76 LOS 7.15 34.36 37.66 16.34 8.62 5.00
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Qianyue ZHANG, Jizhen ZHANG, Xinyao HAO, Yue ZHANG. Monitoring Farmland Phenology Changes of Northeast China and Their Response to Climate in Early 21st Century[J]. Remote Sensing Technology and Application, 2024, 39(2): 350
Paper Information
Category: Research Articles
Received: Oct. 1, 2022
Accepted: --
Published Online: Aug. 13, 2024
The Author Email: Qianyue ZHANG (1059673621@qq.com)
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