London  - The Dalai Lama said Thursday that he was "quite optimistic" about the future of Tibet because he believed that change in China could lead to a "more transparent" attitude over Tibet.

In a BBC interview, the Tibetan spiritual leader said he believed that China's response to the Sichuan earthquake was a sign of change.

"This I think (is) one sign that the People's Republic of China is changing, I think at least decade by decade. Hopefully now (this will) lead to a more transparent attitude in other fields, including the Tibet case."

The exiled leader, who is on a 10-day visit to Britain, repeated the view that he wished to a see a "middle way" of autonomy for Tibet, rather than full independence.

"We are not seeking separation," he said, adding that it was in the interests of both China and Tibet to stay together.

"Tibetan Buddhist culture can be a great contribution to enrich (the) cultural heritage of People's Republic of China," he said.

"Sooner or later we'll have to talk with China's government so the question of independence or separation is out of the question."

While defence and foreign affairs should be governed by the central government, the "the rest of the business," such as education, environment and religious work, should be handled by Tibetans themselves, said the Dalai Lama.

"That is real, meaningful autonomy."

However, he warned of growing frustration if there was "no improvement" in Tibet.

Asked about opposition to his more conciliatory approach towards China, he said: "Not only outside but even inside there are people who really are very critical about our approach, but so far OK, I think we can manage with these people." (dpa)