Spatial-temporal distribution and variation tendency on static and dynamic agricultural ecosystem services value based on the clustering analysis in Gansu province
LIU Yang, ZHANG Wei, ZHANG Gao-sen, ZHANG Bing-lin, JIANG You-jin, ZHANG Song-lin
HUBEI AGRICULTURAL SCIENCES . 2020, (7): 99 -108 .  DOI: 10.14088/j.cnki.issn0439-8114.2020.07.021