direct transit in Guangzhou

Hi, i am a Philippine passport holder and i booked a flight from Christchurch, New Zealand going to Manila, Philippines that connects in Guangzhou. My layover there in Guangzhou is only 3 hours (I booked a ticket from China Southern Airlines that is why i have a layover in PRC). I would like to ask if direct transit is applicable for me and that I dont need anymore to apply for a visa. Thanks