Similarities:

1. Location: Yongchang County and Minqin County are located in the county-level administrative areas under the jurisdiction of Jiuquan City, Gansu Province.

2. Topography: Both counties belong to Hexi Corridor, with relatively flat topography, with desert and Gobi as the main landforms.

3. Climate: Because they are located in inland arid areas, the climate of the two counties is similar, with high temperature and little rain.

4. Ethnic composition: Both counties are multi-ethnic areas, with a majority of Han population and Hui, Mongolian and Tibetan minorities.

Difference:

1. Area: Yongchang County has a total area of about 5,372 square kilometers, and Minqin County has a total area of about 3,807 square kilometers.

2. Population: The total population of Yongchang County is about 380,000, and that of Minqin County is about 230,000.

3. Economic development: Yongchang County is dominated by agriculture, with plateau agriculture and animal husbandry as the leading factor, while developing certain mineral resources, such as coal and copper mines; Minqin county is dominated by industry and tourism, and dominated by mineral resources and desert tourism resources.

4. Transportation: Yongchang County and Minqin County have different levels of transportation development. Yongchang County has the only national railway from Jiuquan to Dunhuang in Gansu Province, as well as highway traffic such as expressway and National Highway, while Minqin County is relatively backward, with only national and provincial highways at present.

Conclusion:

To sum up, Yongchang County and Minqin County have many similarities, such as geographical location, topography, climate and ethnic composition, but there are also some differences, such as area, population, economic development and transportation. For the development of the two counties, we should adopt different development strategies and measures according to their actual conditions, strengthen exchanges and cooperation, and promote the development of the two counties. At the same time, the government and all walks of life should strengthen the prevention and control of desertification, environmental pollution and other issues to protect this precious desert ecological environment.