UNITED NATIONS - China supported the United Nations to conduct necessary and reasonable reforms in the light of the changing international situations, a senior Chinese diplomat to the UN said here on Tuesday.

Speaking at a plenary meeting of the General Assembly which reviewed the UN secretary-general's report on the work of the organization, Wang Min, Chinese deputy permanent representative to the UN, said that China supports the necessary and reasonable reforms of the UN in order to increase its authority and efficiency, strengthen its ability to address new challenges and threats as well as better implement obligations entrusted by the UN Charter.

The UN reform should be all-dimensional and multi-sectoral, especially produce positive results in the area of development, provide necessary guarantee in mechanism and resources for development in realizing Millennium Development Goals and truly benefit the vast majority of developing countries, Wang said.

As the Rio+20 sustainable conference is approaching, China hopes the conference to take stock of the international cooperation in the fields of environment and development over the past two decades, form consensus, take specific actions and promote global cause of sustainable development, Wang noted.

The conference and its preparation process should stick to Rio Spirit and principle of "common but differentiated responsibilities", respect autonomy of states in pursuing sustainable development and especially pay attention to the concerns of developing countries, he said.

On food security challenges, Wang pointed out that food security does not only affect economy and livelihood of all countries, but also affect global development and security.

China called on the international community to adopt idea of common development, take positive and effective measures of coordination to stabilize prices of bulk commodity, prevent excessive speculation and safeguard the food security in the world.

Wang also said that this year is the 40th anniversary of the People's Republic of China's restoration of lawful seat at the UN.

"China will continue to actively undertake international obligations to the best of its abilities, adhere to the road of peaceful development, follow an independent and peaceful foreign policy, commits itself to creating peaceful international environment and promoting common development in the world," he added.