Decades-long efforts to conserve China's 'water tower'

<p>The year 2023 marks the 20th anniversary of the establishment of the Sanjiangyuan National Nature Reserve. The Sanjiangyuan area, sometimes called China&#39;s &quot;water tower,&quot; contains the headwaters of the Yangtze, Yellow and Lancang rivers.</p><p><span style="color: rgb(127, 127, 127);">(Compiled by Du Jieqiong and Dong Feng)</span><br/></p>