Susan Graham: A new way to restore Earth's biodiversity -- from the air | TED

Translator: Tracy Hui Reviewer: Shelley Tsang 曾雯海

每一年， 人類改變1000萬公頃嘅土地，

唔係為咗更好嘅生活。

宜家，喺世界各地，

Every year, humans change 10 million hectares of land,

有超過20億公頃嘅土地被破壞。

我哋需要短時間內修復佢，而科技可以幫到我哋。

and not for the better.

Right now, there are more than two billion hectares of degraded land

修復係個巨型同埋複雜嘅挑戰。

around the world.

單係種樹係唔得嘅。

We need to fix this fast, and technology can help.

我哋需要為原始、複雜嘅生態系統注入生命，

Restoration is an enormous, complex challenge.

呢個需要好深嘅生態造詣。

It cannot be done by simply planting trees.

到目前為止，我哋有嘅複製品有限而且粗劣，

We need to bring native, complex ecosystems back to life,

好似好多林場種植嘅單一樹木咁。

and it requires deep ecological expertise.

但係無人駕駛飛機允許我哋收集數據，改變呢啲限制

Until now, we have been limited to poor facsimiles,

仲可以迅速咁以巨大規模種植混合洽當嘅植物。

like vast plantations of a single kind of tree.

But drones change that by allowing us to gather data

再加上機器學習分析令到我哋可以

計劃耕種同埋監督我哋嘅修複工作。

and plant the right mix of vegetation quickly, at enormous scales.

例如，係澳洲，

And machine-learning analysis enables us to plan the planting

我哋用緊以無人駕駛飛機為主嘅耕種 同埋有生態系統知識嘅人工智能

and then monitor our restoration work.

修復數千公頃用嚟開採煤炭嘅土地。

For example, in Australia,

we're using drone-based planting and ecology-trained AI

唔單只係種樹木，

而係將生物多樣性同埋複雜嘅生態系統帶返嚟。

to restore thousands of hectares of land mined for coal.

以更大規模嚟睇，澳洲嘅原始森林

Not just planting trees,

因為災難性嘅森林大火

but bringing back biodiverse, complex ecosystems.

同埋為咗開發耕種土地而大福減少。

咁代表樹熊嘅食物來源 同埋安全嘅棲息地一直減少。

On a larger scale, native forests here in Australia

have been decimated by catastrophic bushfires

一個新項目可以令我地喺

and land-clearing for agriculture.

接落嚟幾年加快修復幾千公頃嘅

This means diminished food sources and safe habitats for koalas.

樹熊森林。

A new project would allow us to accelerate

有呢啲已經合拼咗嘅技術，

我地就可以擴大修復，

the restoration of thousands of hectares of koala forests

由一個小島 到成個大洲。

over the next few years.

With these combined technologies,

我地可以喺一個以前係礦井嘅土地，

we're able to scale up restoration

from a small island to an entire continent.

恢復翻個森林或者重建生態系統

例如我地希望喺豪勳爵島修復嘅，

We can return forests to land where a mine used to be,

係世界上最大嘅昆蟲誕生地之一。

呢個獨特嘅島不斷受到外來物種困擾，

or recreate ecosystems

like the one we're hoping to restore on Lord Howe Island,

所以我地宜家幫緊手整走果啲乞人憎嘅植物

birthplace of one of the world's largest insects.

令果個地方獨有嘅物種茁壯成長。

This unique island is plagued by imported species,

唔單只係數以百萬計嘅樹木，

where we're helping to eradicate the undesirable plants

呢個計劃宜家修復緊大自然嘅複雜性同埋美貌。

to allow endemic species to thrive.

多謝大家。

It's not just billions of trees.

It's restoring nature in all its complexity and beauty.

Thank you.