What is the geographical environment of Taoyuan in Taiwan Province Province?

Taoyuan City is located in the southeast of China, northwest of Taiwan Province Island, bounded by Daguan Mountain, Zhanshen Mountain, New Taipei City and Yilan County in the southeast, and Xuejiu Mountain, Lidongshan Mountain and Jianshi Township in Hsinchu County in the southwest. Linkou Platform and Guilunling Mountain stand out in the northeast of the city, which is the natural boundary between Taipei Basin and Taoyuan Platform. The center of Taoyuan is Pinganli in Pingzhen District, Lanqi Mountain in Fuxing District in the east, Shell Harbor in Wuxin District in the west, Qiu Xi Mountain in Fuxing District in the south and Kengzikou in Luzhu District in the north.

Most of Taoyuan City is a continuous hilly platform with a long and narrow terrain from northwest to southeast, facing the mountains and the sea. Starting from Shimen Reservoir and passing through Dahanxi, the northeast exit of Daxi District, Taoyuan City is divided into southeast and northwest parts. The southeast is divided into hills, terraces and mountains with an altitude of more than 300 meters. The terrain gradually rises to the southeast, with steep mountains and narrow valleys. The northwest is relatively flat, with well-developed platforms and terraces, and short rivers that radiate into the sea. Bai Xueshan is the highest peak in Taoyuan City, with an altitude of 2444.305 meters.

The platform of Taoyuan Platform is composed of gravel layer, which is usually called "platform gravel layer", and some scholars call it "red soil platform accumulation layer". These laterite gravel layers are often subdivided into different strata, namely Dianzihu layer, Zhongli layer and Taoyuan layer. There is little difference in lithology between these strata, which are mainly composed of gravel layer in the lower part and red soil layer in the upper part. Gravels are mainly white quartzite, dark gray siliceous sandstone and light gray sandstone. As for faults, the faults in Taoyuan City are all distributed in the hilly areas in the eastern half, and there are no faults in the densely populated plain areas in the western half.

Taoyuan City has a subtropical monsoon climate except the southeast mountainous area. The climate of Taoyuan City is most influenced by northeast monsoon and southwest monsoon. The northeast monsoon starts from the end of 10 and ends in March of the following year, with strong wind and low temperature. The southwest monsoon starts from May to September, with weak winds and sunny weather, but there are many thunderstorms in the afternoon, especially typhoons from July to September.

The annual rainfall 1500 ~ 2000mm (2000 ~ 4000mm in mountainous areas) is more in summer and less in winter, but there are more rainy days in winter. The annual average temperature is about 23 degrees Celsius, 29 degrees in summer, 16 degrees in winter, and the annual average humidity is about 89 degrees.