pone.0297933.g002.tif (322.41 kB)
Changing trend of ecological efficiency of cultivated land utilization in the upper reaches of the Yangtze River from 2010 to 2020.
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posted on 2024-02-26, 18:24 authored by Wei He, FeiFan Wang, Ni FengChanging trend of ecological efficiency of cultivated land utilization in the upper reaches of the Yangtze River from 2010 to 2020.
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xlink "> researchingstill relatively loosequadratic assignment procedurelowest average valuehighest average valuecultivated land utilizationchina &# 8217agricultural mechanization intensityunexpected output modelsuper sbm ),spatial correlation matrixrevised gravity modeltaking 47 citiesregional population differenceschina spatial correlation networksocial network modelagricultural economic developmentspatial networkagricultural greenspatial adjacencysna ),yunnan provinceyangtze riverupper reachessichuan provinceresults showprovincial boundariespositively correlatedoverall densitynegatively correlatedmeasured basedinfluencing factorsgreat significancefood securityfactors affectingecological efficiencyconstructed usingcarbon developmentautonomous prefectures
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