This story turned out to be fake
The news of the ban on uploads of Japanese anime/manga was confirmed to be a false rumor.
I apologize for providing a wrong story and retract this news.
News credit: Iiotoko
The State Administration of Radio Film and Television of China announced that they put a ban on the uploads of Japanese Anime, Manga, TV programs, games and movies to the Chinese websites. All the prohibited data will be deleted by May 1st.
Chinese govenment has prohibited the airing of Japanese anime between 5pm - 8pm in order to protect the domestic anime industry.
Source: Club China.com
translation credit: wakka9ca