"There has been quite a strong focus on the maritime issues and this is the first time we have seen the same issues arise in relation to air space."
He has issued no statement on the matter.
US has formal security alliances with Japan, Australia and South Korea.
New Zealand has an intelligence alliance with the US as part of the Five Eyes arrangement among the US, UK, Australia, Canada and New Zealand.
But the previous three-way security alliance under the ANZUS Treaty (US, Australia, New Zealand) is defunct.
Defence Minister Jonathan Coleman last year signed the Washington Declaration with former US Defence Secretary Leon Panetta but it is a co-operation agreement, not an alliance, and the United States' Navy still refuses to enter New Zealand ports because of New Zealand's anti-nuclear laws.
Dr Coleman was coincidentally in Beijing today for pre-arranged talks with China's Defence Minister General Chang Wanquan and the Air Defence Identification Zone was discussed, Dr Coleman said in a statement.
New Zealand's position contrasts markedly with Australia's since last weekend, when China unilaterally declared an Air Defence Identification Zone around what it calls Diaoyu Islands and Japan calls Senkaku.
Australia's Foreign Minister Julie Bishop this week ordered that China's ambassador be called in to hear the Australian Government's concerns at the unilateral declaration of an air defence zone. She has made critical comments in the news media, although they have not been posted on her ministerial website as is the practice.
Beijing called Ms Bishop comments ''irresponsible" and called on Australia to "immediately correct its mistake, so as to avoid damaging China-Australia relations."
She has since restated her concerns and been backed up by Prime Minister Tony Abbott.
The EU High Representative Catherine Ashton today issued a statement expressing concern at China's actions saying "the development heightens the risk of escalation and contributes to raising tensions in the region."