1. Different regions: Xiangjiang River mainly flows through Hong Kong Special Administrative Region, and Pearl River mainly flows through Guangdong Province, which is one of the largest rivers in Guangdong Province.
2. Different lengths: The Pearl River is about 2100km, which is the third longest river in China, while the Xiangjiang River is only about 73km, which is one of the tributaries of the Pearl River.
3. Different basin areas: The Pearl River basin covers an area of about 447,000 square kilometers, many times larger than Xiangjiang River.
4. Different importance: The Pearl River is one of the economic centers in southern China, which flows through Guangdong, Guangxi, Hunan, Jiangxi, Guizhou, Yunnan and other provinces. It is an important industrial, agricultural and transportation base in China and the birthplace of the Pearl River Delta in China. Xiangjiang is an important commercial, financial and transportation center in Hong Kong and one of the important international gateway cities in China.