taking planting industry in Jilin province as an example 农业供给侧结构性改革及其优化研究：以吉林省种植业为例：taking planting industry in Jilin province as an example taking Xianghai national nature reserve in Jilin province as an example taking Lushan County, Henan Province as an example taking Zhangjiajie City, Hunan Province as an example taking colleges and universities in Liaoning Province as an example taking Guangdong Province as an example taking Jiangxi province as an example taking Jilin province as an example taking Shandong province as an example