This work was supported by the National Natural Science Foundation of China (Grant No. 41971371 and 32001368), the National Key Technologies Research and Development Program (Grant No. 2022YFB3903504) and the Fundamental Research Funds for the Central Universities (CCNU22JC022).
机构署名：
本校为第一且通讯机构
院系归属：
城市与环境科学学院
摘要：
Agricultural cropping intensity plays an important role in evaluating the food security and the sustainable development of agriculture. The existing indicators measuring cropping intensity include cropping frequency and multiple cropping index. As a nominal measurement, cropping frequency classifies crop patterns into single-cropping and/or double-cropping and leads to information loss. Multiple cropping index is calculated on the basis of statistical data, ignoring the spatial heterogeneity within the administrative region. Neither of these indicators can meet the requirements of precision ag...
