1988—2020年新疆棉花生产格局与贡献因素.

To understand the changes in cotton production and the yield increase pattern in Xinjiang, mathematical statistics and gravity center models were used to analyze the spatial and temporal patterns of cotton production. The pattern and contribution factors of cotton yield increase were discussed based on relevant data from 1988 to 2020. The variation in cotton production in Xinjiang since 1988 showed two stages. The first was an upward fluctuating period (1988—2014), where cotton yield increased from 1.712×105 t to 3.378×106 t, and the planted area increased from 2.213×105 hm² to 1.970×106 hm² . During the second period of fluctuating decline (2015—2020), the cotton yield decreased to 3.027×106 t, and the planted area decreased to 1.637×106 hm² . From 1988 to 2020, the cotton production, planted area, and yield in most cities and regions of Xinjiang significantly increased, but there were significant differences among regions. Southern Xinjiang had a prominent position in cotton production, with Aksu, Kashgar, and Bayingolin contributing 65.43% to the increase of cotton yield in Xinjiang. The increase rate in cotton production of Hami in eastern and northern Xinjiang was faster than that in southern Xinjiang, relocating the gravity center of cotton production to the northeast by 300.96 km, from Kashgar to Aksu. The increase in cotton production in Xinjiang was mainly led by the planted area (74.61%) . In the future, Xinjiang should consider increasing cotton yield per unit area as the main way to ensure cotton yield. [ABSTRACT FROM AUTHOR]