Smoke is discharged from chimneys at a plant in Huaibei city, East China's Anhui province, Jan 13, 2015. [Photo/China Daily]

According to Su, these announcements indicate the general targets and direction of China's contributions and will be the core part of its INDC. Besides emission reduction, China's INDC will also include its actions to adapt to climate change and concrete measures in implementation, policy, legislation and mechanism settings.

Regarding the fact that none of developed countries has mentioned other obligations than emission cutting in their INDC, Su said, although the "contributions" are "nationally determined," they should still respect the principles and meet requirements of the UNFCCC.

The "Contributions" from developed countries should include not only emission reduction, but also their support in finance, technology and capability building for developing countries, he said.

Su said the Group of Seven (G7) countries had set their climate targets that looked ambitious, adding that instead of talking about the far future, they should make more efforts to meet their commitments in the coming years.

In 2009, developed countries committed themselves to increasing their financial support for developing countries to 100 billion U.S. dollars a year by 2020. A clear roadmap to meet the commitment, however, has never been provided.

The chief negotiator said it has become a consensus that a new global climate agreement set to be reached in Paris is not just about emission reduction. Instead, the agreement should reflect mitigation, adaptation, finance, technology, capability building and transparency in a comprehensive and balanced manner.

China will continue to push forward the UN climate negotiation process as a constructive partner and actively join multilateral and bilateral communication, so as to make contributions to addressing global climate change and ensuring a successful climate conference in Paris, Su said.