<span style="color: #222222;">The US ambassador to China has called upon Beijing to open a substantive dialogue with the Dalai Lama. </span><br />'' <br />'' <span style="color: #222222;">The US ambassador Terry Branstad's remarks came after he visited northwest China's Qinghai province dominated by Tibetans as well as the Tibet Autonomous Region, where access is restricted for diplomats and journalists.<br />''</span><br />'' <span style="color: #222222;">An US embassy spokesman said Branstad encouraged the Chinese government to engage in substantive dialogue with the Dalai Lama or his representatives, without preconditions, to seek a settlement that resolves differences.<br />''</span><br />'' <span style="color: #222222;">China is accused by human rights groups of repressing Tibet's religion and culture, and cracking down on separatism. </span><br />'' <br />'' <span style="color: #222222;">Since fleeing to India in 1959 following a failed uprising in the Tibetan capital Lhasa, the Dalai Lama has been trying to reach a compromise with the Chinese government over the fate of his people.</span><br />