1. Location:
Hainan Province is located at the southernmost tip of China, bounded by Qiongzhou Strait in the north, facing Vietnam in the west, facing Taiwan Province Province in the South China Sea in the east, bordering the Philippines, Brunei and Malaysia in the southeast and the South China Sea in the south. The jurisdiction of Hainan Province includes the islands and reefs of Hainan Island, Xisha Islands, Nansha Islands and Zhongsha Islands and their sea areas.
Hainan Province has a total land area of 35,000 square kilometers and a sea area of about 2 million square kilometers, of which Hainan Island covers an area of 33,900 square kilometers. ?
2. Climate:
Hainan Island is located in the northern edge of the tropics and belongs to the tropical monsoon climate. It has always been known as a "natural greenhouse". It has a long summer and no winter. The annual average temperature is 22~27℃, and the accumulated temperature of 10℃ is 8200℃. The coldest January temperature is still 17 ~ 24℃, and the annual illuminance is 1750. Hainan Island is an ideal breeding base in South China because of its early spring, rapid temperature rise, large daily temperature difference, frost-free all year round and warm winter.
Hainan province has abundant rainfall, with annual precipitation1000 mm-2,600 mm and average annual precipitation 1639mm, with obvious rainy season and less rainy season. May ~ 10 is the rainy season every year, and the total precipitation is about 1500mm, accounting for 70 ~ 90% of the total annual precipitation. The main rain sources are frontal rain, thermal thunderstorm and typhoon rain. The rainy season is 1 1 until April of the following year, accounting for only 10 of the annual precipitation.
3. Terrain:
Hainan Island is flat around and towering in the middle, with Wuzhishan and Ying Ge Ridge as the uplift core and gradually descending to the periphery. Mountains, hills, terraces and plains form a circular layered landform with obvious cascade structure.
Most of the mountains in Hainan Island are between 500 meters and 800 meters, which are actually hills and low mountains. There are 8 peaks 1000 meters above sea level, which have become long undulating walls on low hills. The peaks above1500m are Wuzhishan, Ying Ge Mountain, Ozone Mountain, Monkey Mountain, Yajialing Mountain and Diaoluo Mountain.