Placing such systems on roof-tops reduces the need for land and puts them close to the places where the energy will be used.

将这种系统安装在屋顶上，既减小土地的需用量，还能使它们靠近需要 用电的 地方。

youdao

Sadiman realized that the land was in need of some water when the Gendol River—previously the source of water for villagers—was quickly drying up.

当根多尔河（以前是村民的水源）迅速干涸时，赛迪曼意识到土地需要一些水。

youdao

Fewer cars would then be needed, reducing the need for parking Spaces, which consume valuable land.

这样就不需要这么多的车辆，还能减少停车的空间占用，节约出宝贵的土地。

youdao

As the war in Kosovo grinds on, the alliance's need for a land bridge from Germany through the Czech Republic and Slovakia and on to Hungary has enhanced the country's strategic importance.

ECONOMIST: Slovakia

They cut the amount of land you need for farming, which reduces deforestation.

FORBES: Saving the World With the Power of Ideas: A Conversation With Ramez Naam

But we can go further: I know the report does not mention GM directly but it is GM which offers us the best chance of increasing yields and thus decreasing the amount of land we need for conventional farming.

FORBES: Genetic Modification: Proof that GM is Good for the Environment