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BEIJING, June 10 (Xinhua) -- The first summit between Chinese President Xi Jinping and his U.S. counterpart, Barack Obama, yielded fruitful results and has set a positive tone for the future development of bilateral relations, commented media and experts worldwide.

China will continue to maintain communication and cooperation with all sides, she said, adding that China believes that rules should be formulated under the framework of the United Nations and China has put forward specific initiatives to work with all sides for the peace and security of cyberspace.

Conditions in some urban areas have made it difficult to plant trees. A woman from east China's Zhejiang Province who sought to plant a tree with her son was told by local forestry authorities that there were no available areas to plant trees, the Beijing Times reported on Tuesday.

Wan advised that to reduce desertification, new technologies should be highlighted. "We need to build science and technology demonstration bases to develop technology and accumulate experiences in desert control, as well as encourage enterprises to develop ecological industries and improve their capacity for innovation."

Asiana Airlines Flight 214 from Seoul crashed while landing at San Francisco International Airport.