我一直很好奇这样的估计。是谁做的?

谢谢。
(Translated by Braden Latham-Jones.)

I am always curious about estimates such as these. Who made them?

谢谢

作者称"沙漠化影响着中国四亿人的生活"，是国务院研究室工交司司长唐元在2008年于国务院发展研究中心举出的数据，请点击参看。
这亦是2002年《联合国防治荒漠化公约》所引述的统计数字，请点击参看。
希望这些资料对你有帮助。

山姆·吉尔 (中外对话)

With regard to the claim that "desertification affects 400 million people in China," this statistic was cited by Tang Yun, China's general director of the Research Department for Industry, Transportation and Trade, at the State Council Development Research Center, in 2008. Source here.

It is also a figure cited by the United Nations Convention to Combat Desertification in 2002, here.

I hope that helps,
Sam Geall (chinadialogue)

种植在澳洲被证明能有效逆转沙漠化的植物。滨藜C4光合途径能逆转土地沙化和沙漠化并释出土壤和土壤碳。种植这种非杂草类植物对巩固土壤是必要的。这样，在未来某个时间就可以种植本土的农作物和蔬菜，并能够引入可持续耕作和放牧的新的道德标准。一系列的试验现已证实了以上推论。 Robert Vincin于北京。

陈果翻译。

Planting out the approved Australian desert reversal, C4 photosynthesis pathway Bin Li Atriplex nummularia reverses sandification desertification and makes soil and soil carbon. It is necessary to plant out this non weed to fix soil, then at a point in time, native crops and vegetation can be planted out, and a new ethic on sustainable farming and grazing can be introduced. Tests now have proved such. Robert Vincin Beijing