Who can help introduce the water resources in Yantai?

within the city, the river network is well developed, with many small and medium-sized rivers, including 121 rivers with a length of more than 5 kilometers, among which 7 rivers with a drainage area of more than 3 square kilometers are Wulong River, Dagu River, Dagujia River, Wanghe River, Jiehe River, Huang Shuihe River and Xin 'an River. The main rivers are divided by the "Jiaodong Roof" formed by Kunyu Mountain, Yashan Mountain, Ai Shan Mountain, Luoshan Mountain and Daze Mountain, and flow into the sea from north to south. The Wulong River and Dagu River flow southward into the Yellow Sea. Dagujia River and Xin 'an River flow northward into the Yellow Sea; Huang Shuihe, Jiehe and Wanghe flow into the Bohai Sea. It is characterized by large river bed gradient, short source and rapid flow, rapid rise and fall, and belongs to monsoon rains source river. The alluvial plain is thick and fertile, rich in apples, cherries, pears and grapes.

[ Edit this paragraph] Climatic characteristics

Yantai is surrounded by mountains and seas, with a pleasant climate, no severe cold in winter and no intense heat in summer. It belongs to a warm temperate monsoon climate, with an average annual temperature of about 12 degrees Celsius. It is a famous tourist summer resort and leisure resort in northern China.

[ Edit this paragraph] Overview of the sea area

Island distribution

Yantai has a coastline of 99 kilometers, bordering the Bohai Sea in the north and northwest, and the Yellow Sea in the northeast and south. There are 63 islands with large and small bedrock, like brilliant pearls embedded in the sea. There are Zhifu Island, Nanchangshan Island and Yangma Island with a large area, and there are 15 islands with residents, namely Nanchangshan Island, BeishanChangshan Island, Daheishan Island, Xiaoheishan Island, Miaodao Island, Qiaoji Island, Daqin Island, xiaoqin island Island, Nanhuangcheng Island, Beihuangcheng Island and Longkou in Changdao County.

characteristics of seawater

the change of surface water temperature along the coast is more obvious and larger than that in the open sea, and the annual average water temperature is between 11 and 14℃. The annual average surface salinity of seawater is about 28 ~ 31 ‰. Tides from Laizhou to Longkou coastal area are irregular semidiurnal tides, while those from Longkou to Muping and Haiyang coastal area are regular semidiurnal tides.