YUAN Quan-Zhi, HAO Jin-min, ZHANG Ling-li, WANG Bo-qi, LONG Xin . Study on establishment of the regional compensation mechanism of cultivated land protection based on externality theory—A case study of Weifang City from Shandong Province[J]. JOURNAL OF NATURAL RESOURCES, 2010 , 25(4) : 529 -538 . DOI: 10.11849/zrzyxb.2010.04.001