另外，作者提出把从17世纪初开始的小冰期，气候干冷．沙尘暴频发作为现代沙漠化过程开始的观点。

The author thinks the contemporary desertification dates back to the 17th century when the climate was cold and dry, and dust storms were frequent.

youdao

另外，作者提出把从17世纪初开始的小冰期，气候干冷．沙尘暴频发作为现代沙漠化过程开始的观点。

The author thinks the contemporary desertification dates back to the 17th century when the climate was cold and dry, and dust storms were frequent.

youdao