Table 2. The average value of ecological efficiency of cultivated land utilization in the upper reaches of the Yangtze River in 2010 and 2020.

years	Sichuan Province	Chongqing	Guizhou Province	Yunnan Province	average
2010	0.530	0.424	0.311	0.319	0.396
2011	0.552	0.430	0.236	0.300	0.380
2012	0.519	0.444	0.275	0.313	0.388
2013	0.526	0.452	0.281	0.327	0.397
2014	0.517	0.451	0.337	0.333	0.410
2015	0.565	0.455	0.373	0.366	0.440
2016	0.611	0.486	0.400	0.371	0.467
2017	0.614	0.493	0.433	0.378	0.479
2018	0.650	0.518	0.465	0.373	0.501
2019	0.728	0.542	0.508	0.416	0.549
2020	0.844	0.589	0.603	0.454	0.623
Average	0.605	0.481	0.384	0.359	0.457