Editor's note: Delegations to the 20th CPC National Congress have appointed their spokespersons, and starting Tuesday, these spokespersons meet with journalists for group interviews. Here are the highlights from Thursday's interviews.

Chen Ruifeng, member of the Standing Committee of the CPC Qinghai Provincial Committee and secretary of the CPC Xining Municipal Committee

The ecological environment of the Qinghai-Tibet Plateau has gained historic, comprehensive and watershed changes. We have safeguarded the ecology of the Qinghai-Tibet Plateau to the best of our efforts, attempting to build it as a nationwide or even worldwide example of ecological conservation. Over the past decade, water conservation in the Sanjiangyuan (Three River Source) area has increased by 6 percent on a yearly basis, and it has transported 90 billion cubic meters of water to the lower reaches each year.