1, climatic reasons. Guangdong Province is located at the southernmost tip of China, and its climate is quite different from that of the north and the Central Plains. Many students in Guangdong can't adapt to the northern climate and don't apply for other universities, so schools don't enroll students in Guangdong.

2. Urban quota restrictions. Due to the limitation of urban area and population, every city has restrictions on admission places. This may lead to limited enrollment, giving priority to local candidates and restricting the enrollment of foreign students.

3. Allocation of places. Perhaps universities have allocated most of their enrollment places to other provinces in order to maintain their own inherent characteristics. This may lead to a small or no proportion of Guangdong candidates in the enrollment quota.