但是，由于人口的增加，土地利用结构与垦殖指数都不会有明显的变化，所以流域的产沙不可能有大幅度的减少。

But the land use structure and reclamation index will not vary obviously with an increase of population, therefore, the sediment load from the river basins will not decrease greatly.

youdao

但是，由于人口的增加，土地利用结构与垦殖指数都不会有明显的变化，所以流域的产沙不可能有大幅度的减少。

But the land use structure and reclamation index will not vary obviously with an increase of population, therefore, the sediment load from the river basins will not decrease greatly.

youdao