## [China Climate Livable City -Dechang]

China Climate Livable City -Dechang

Dechang County, located in the southwestern part of Sichuan Province, is located in the hinterland of the Anning River Valley, the second largest plain in Sichuan, with an area of ​​2284 square kilometers. The county has 23 ethnic groups including Han, Yi, and 傈僳, with a permanent population of 222,000, of which 31.5%are minorities. Since ancient times, it has been the place where Shang Jia has gathered, and the ancient road of tea horses. Because the county is shaped like a Phoenix drinking incense spring, it is known as "Xiangcheng", "Phoenix City" and "Swallow City".

Dechang County, long history, Chongwen and virtue, there is a traditional virtue of "thick virtue, Deren Zee Chang". Since the establishment of the town of the Western Han Dynasty, it has a history of more than 2,000 years. At the same time, Dechang also has cultural and cultural heritages such as the Langu Cultural Tourism and Red Cultural Tourism.

Dechang has high mountain lake Heilongtan, Aunt Mountain Rhododendron, Phoenix Mountain Forest Park, Mainland Tank Forest Park, and Gaofeng 10,000 acres. The National 4A -level Scenic Area Luoshan Scenic Area is the world's rare "Ancient Glacier Geological Museum", precious "plant kingdom" and "gene bank" of animal and plant resources.

The average annual temperature of Dechang County is 17.7 ° C, the average annual maximum temperature of 24.2 ° C, and the average minimum temperature of 12.8 ° C; the extreme maximum temperature is 40.3 ° C, the extreme minimum temperature is -4.6 ° C; , Low Eastern Distributed features.

The "cold moon" day temperature is high. Dechang's maximum temperature in January was basically above 10 ° C, accounting for 99.7%of the total number of days in January. Summer night temperature is low. The average minimum temperature in each month of Dechang summer is lower than 18 ° C, of ​​which June 15.6 ° C, July 17.2 ° C, August 16.5 ° C; the proportion of below 24 ° C at night reached 99.8%. Night is comfortable. The number of temperatures of the year is 228.5 days, accounting for 62.6%of the year.

Dechang's annual precipitation is 1074.4 mm, and the precipitation is more abundant. The average annual precipitation is more than 129.4 days; the rain and rain are weak, mainly small to medium rainy weather, accounting for 90.4%of the total precipitation.

The average relative humidity of Dechang is 64%, and the relative humidity in summer is large (76.8%), followed by autumn (74.5%), and the spring (48.5%) and winter (53.7%) are relatively small. The number of daily suitable humidity throughout the year is large. Dechang County's appropriate humidity day was 216.9 days, accounting for 59.4%of the number of days of the year.

The annual sunshine is 2356 hours, and the percentage of the annual sunshine is 47%; the percentage rate of sunshine in winter and spring is 47%to 66%. The percentage of sunshine in summer and autumn is relatively small, with 27%to 57%.

The annual air quality is good, and the average AQI index is 48. Dechang's annual air quality is 216 days and good, 149 days, and the number of days of excellent air quality throughout the year is 100%. The average annual concentration of Dechang's negative oxygen ion is 4286/cubic centimeters (level I). The concentration of negative oxygen ions in each month and human health are "high concentration and fresh air".

The unique climate endowment and natural geographical conditions make Dechang County have a colorful and beautiful meteorological landscape, with a variety of unique weather phenomena or climate landscapes such as clouds, sea of ​​flowers, terraces, and stars.

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