长江中下游地区冬闲田地理分布数据

近20 年以来，随着我国经济结构的调整和农村劳动力的转移，部分地区冬闲田的面积呈明显增长态势。长江中下游地区冬闲田地理分布数据（WFL_MLYR）是利用长时间序列SPOT NDVI 数据，结合研究区耕地空间分布和农作物在出苗期和成熟期NDVI 变化特征，基于NDVI 动态阈值法提取的。该数据包括长江中下游地区2007 年农作物收获时间、2008年农作物播种时间以及2007-2008 年冬闲田闲置时间。该数据是掌握我国区域农业生产活动状况，挖掘农业生产潜力，科学、合理及高效利用冬闲田资源，保证农业可持续发展的重要参考数据和基础性数据。

In the past two decades, with the adjustment of China's economic structure and the transfer of rural labor force, the area of winter fallow land in some regions has shown a significant growth trend.
The geographic distribution dataset of winter fallow land in the middle and lower reaches of the Yangtze River (WFL_MLYR) was extracted using long-time series SPOT NDVI data, combined with the spatial distribution of cultivated land in the study area and the NDVI variation characteristics of crops during the emergence and maturity stages, based on the NDVI dynamic threshold method.
This dataset includes the crop harvesting time in 2007, crop sowing time in 2008, and the idle duration of winter fallow land from 2007 to 2008 in the middle and lower reaches of the Yangtze River.
This dataset serves as an important reference and fundamental data for grasping the status of regional agricultural production activities in China, tapping agricultural production potential, utilizing winter fallow land resources scientifically, rationally and efficiently, and ensuring sustainable agricultural development.