A recent study conducted by the Department of Andropathy of the No-1 hospital in Guangxi Zhuang, China confirmed that Internet surfing affects sperm count. Will teenagers run away from Internet? (source: tinyurl.com/ykbmeg8)
They mixed up causes. Kids with low sperm count who probably can't get laid sit in the internet too much. Also take any research from China with a grain of salt.
There is no scientifically proven that surfing results in low sperm count. It might be study over low sperm count people have surfed more on internet. but it is not that since surfing more on internet , their sperm count decreased.