id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
fbem-21418	Cao, Shihao	Ecological Security Assessment of Main Grain-producing Areas in China	2024	6	.pdf	application/pdf	4145	158	42	Ecological security level of main grain producing areas 2015 2016 2017 2018 2019 2020 Heilongjiang excellent excellent excellent excellent excellent excellent Jiangxi excellent excellent excellent excellent excellent excellent Sichuan good good good good good good Jilin good excellent good excellent excellent good Hunan good good good good good good Hubei good good good good good good Inner Mongolia good good good good good good Anhui general general general general general general Henan general general general general general general Liaoning general general general general general general Hebei general general general general general general Jiangsu general general worse worse worse worse Shandong worse worse worse worse worse worse 4. Most of the areas with general ecological security level have low response level scores, that is, the intensity of ecological environment protection in these areas needs to be improved ; most of the areas with poor ecological security level have low scores in the state layer.	cache/fbem-21418.pdf	txt/fbem-21418.txt