生态学杂志2011，Vol.30Issue(12)：2827-2835,9.
浙江省作物多熟种植制度遥感反演及其时空格局
Remote sensing retrieving of multiple cropping systems and their spatiotemporal patterns in Zhejiang Province
摘要
Abstract
This paper analyzed the cropping intensities and spatiotemporal variations of multiple cropping systems in Zhejiang Province, based on the 2001-2010 Moderate Resolution Imaging Spectroradiometer (MODIS) NDVI datasets (16-day composite MOD13Q1). To derive the cropping intensities, an improved Savitzky-Golay filter was applied to reconstruct the NDVI time-series. The cropping intensities retrieved from MODIS data well agreed with the agro-meteorological observations and statistic data at regional or county level. Corresponding to the phenological phenomena , the NDVI values in the Province generally peaked in February-March, May-June, and August-September. Double cropping system was the most important agricultural system. According to the recent 10 years' cultivation, the planting area of double cropping system was the largest, and the inter-annual variation was the least. The planting area of single cropping system was roughly at the same level as that of the triple cropping system, and both of them showed larger inter-annual variation. A slow increase of the multiple-cropping index was observed since 2001, with the maximum (205. 5) appeared in 2010. However, there was still a large gap to the potential multiple-cropping index (288) , suggesting that there would be a higher potential to improve the utilization of cultivated lands in the Province.关键词
种植制度/MODIS/NDVI/复种指数/Savizky-Golay滤波Key words
cropping system/ MODIS/NDVI/ cropping index/ Savizky-Golay filter分类
农业科技引用本文复制引用
何月,张小伟,李仁忠,樊高峰,蔡菊珍..浙江省作物多熟种植制度遥感反演及其时空格局[J].生态学杂志,2011,30(12):2827-2835,9.基金项目
中国气象局气候变化专项(CCSF2011-20)和浙江省气象局创新团队项目(2010TD05)资助. （CCSF2011-20）
