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  • Technology can change our understanding of nature.

    我們對自然的認識 隨著科技而改變

  • Take for example the case of lions.

    拿獅子來說

  • For centuries, it's been said that female lions

    好幾世紀以來 我們都認為

  • do all of the hunting out in the open savanna,

    只有母獅會在大草原上會狩獵

  • and male lions do nothing until it's time for dinner.

    公獅總是坐享其成

  • You've heard this too, I can tell.

    就以這一對而言 這是正確的

  • Well recently, I led an airborne mapping campaign

    我最近主持的空拍地形描繪計畫

  • in the Kruger National Park in South Africa.

    位於南非的克魯格國家公園

  • Our colleagues put GPS tracking collars

    我們在公獅跟母獅的

  • on male and female lions,

    頸子上配戴GPS追蹤頸環

  • and we mapped their hunting behavior

    然後我們從空中追蹤

  • from the air.

    觀察牠們的狩獵習性

  • The lower left shows a lion sizing up

    左下方的圖 可以看出一隻獅子準備獵食

  • a herd of impala for a kill,

    要把羚羊群聚一起 準備狩獵

  • and the right shows what I call

    右圖就是我說的

  • the lion viewshed.

    獅子的視域

  • That's how far the lion can see in all directions

    這是獅子在各方向視野所及的範圍

  • until his or her view is obstructed by vegetation.

    直到視野被植被遮擋

  • And what we found

    我們發現

  • is that male lions are not the lazy hunters

    公獅並不是我們想像中

  • we thought them to be.

    好吃懶做的傢伙

  • They just use a different strategy.

    牠們只是用了不同的策略

  • Whereas the female lions hunt

    相較於喜愛在大草原

  • out in the open savanna

    進行長距離狩獵的母獅

  • over long distances, usually during the day,

    通常是日間狩獵

  • male lions use an ambush strategy

    公獅更喜歡在夜間埋伏

  • in dense vegetation, and often at night.

    在茂密的植被區域

  • This video shows the actual hunting viewsheds

    這段影片說明 母獅跟公獅狩獵視域的差異性

  • of male lions on the left

    左邊是公獅的視域

  • and females on the right.

    右邊的是母獅

  • Red and darker colors show more dense vegetation,

    紅色深色區塊 表示茂密的植被

  • and the white are wide open spaces.

    白色區塊代表開放場域

  • And this is the viewshed right literally at the eye level

    這個視域高度

  • of hunting male and female lions.

    就是公獅跟母獅眼睛看到的高度

  • All of a sudden, you get a very clear understanding

    你會突然瞭解

  • of the very spooky conditions under which

    公獅狩獵時的

  • male lions do their hunting.

    詭譎氣氛

  • I bring up this example to begin,

    我以這個例子開場白 因為它能強調

  • because it emphasizes how little we know about nature.

    我們對大自然的了解這麼淺

  • There's been a huge amount of work done so far

    時至今日 已有大量計畫投入

  • to try to slow down our losses of tropical forests,

    試圖減緩熱帶森林消失

  • and we are losing our forests at a rapid rate,

    儘管它消失的速度迅速

  • as shown in red on the slide.

    可以從投影片上的紅色看出來

  • I find it ironic that we're doing so much,

    諷刺的是 我們做得這麼多

  • yet these areas are fairly unknown to science.

    對科學而言 這些卻是陌生的區域

  • So how can we save what we don't understand?

    究竟如何保護我們不了解的雨林呢

  • Now I'm a global ecologist and an Earth explorer

    我是全球生態學家跟地球探險家

  • with a background in physics and chemistry

    我有物理跟化學的背景

  • and biology and a lot of other boring subjects,

    還有生物以及一堆無聊科目的知識

  • but above all, I'm obsessed with what we don't know

    但更重要的是

  • about our planet.

    我對於未知的地球的狂熱

  • So I created this,

    所以我創立了

  • the Carnegie Airborne Observatory, or CAO.

    卡內基空中天文台號 簡稱CAO

  • It may look like a plane with a fancy paint job,

    它看起來像一架花俏的飛機

  • but I packed it with over 1,000 kilos

    但是當我把它裝滿

  • of high-tech sensors, computers,

    超過1000公斤的高科技感應器、電腦

  • and a very motivated staff

    還有一群積極主動的組員

  • of Earth scientists and pilots.

    地球科學家跟飛行員

  • Two of our instruments are very unique:

    我們有兩台非常特別的儀器

  • one is called an imaging spectrometer

    一個是成像光譜儀

  • that can actually measure the chemical composition

    它能即時測量 飛行路線經過的

  • of plants as we fly over them.

    植物的化學成分

  • Another one is a set of lasers,

    另一台是一組雷射

  • very high-powered lasers,

    非常高功率的雷射

  • that fire out of the bottom of the plane,

    能從飛機底部射出

  • sweeping across the ecosystem

    掃過整個生態統

  • and measuring it at nearly 500,000 times per second

    同時以幾乎每秒50萬的速度

  • in high-resolution 3D.

    掃瞄出3D高解析圖

  • Here's an image of the Golden Gate Bridge

    這是舊金山的金門大橋

  • in San Francisco, not far from where I live.

    距離我家不太遠

  • Although we flew straight over this bridge,

    儘管我們飛過了這座橋

  • we imaged it in 3D, captured its color

    我們以3D描繪 記錄色彩

  • in just a few seconds.

    僅僅花了幾秒鐘

  • But the real power of the CAO

    但是CAO真正的強項

  • is its ability to capture the actual building blocks

    是它能記錄生態系裡的

  • of ecosystems.

    組成元件

  • This is a small town in the Amazon,

    這是亞馬遜的一個小鎮

  • imaged with the CAO.

    以CAO描繪的

  • We can slice through our data

    我們能從資料中取樣分析

  • and see, for example, the 3D structure

    例如植被的3D結構

  • of the vegetation and the buildings,

    還有建築

  • or we can use the chemical information

    或是我們可以應用化學資料

  • to actually figure out how fast the plants are growing

    來調查植物的生長速度

  • as we fly over them.

    在我們飛越它們的當下

  • The hottest pinks are the fastest-growing plants.

    深粉紅色的是生長最迅速的植物

  • And we can see biodiversity in ways

    我們觀察到的生物多樣性

  • that you never could have imagined.

    也是從所未見的

  • This is what a rainforest might look like

    如果你從熱氣球往下看

  • as you fly over it in a hot air balloon.

    雨林可能會長這樣

  • This is how we see a rainforest,

    但這是我們看到的雨林

  • in kaleidoscopic color that tells us

    跟萬花筒一樣的繽紛色彩

  • that there are many species living with one another.

    告訴我們有很多生物同時存在

  • But you have to remember that these trees

    你別忘了

  • are literally bigger than whales,

    這些樹有的比鯨魚還要大

  • and what that means is that they're impossible to understand

    也就是說 如果僅僅在地面上走過

  • just by walking on the ground below them.

    你是絕對無法了解它們的

  • So our imagery is 3D, it's chemical, it's biological,

    所以我們的影像是3D的 是化學的 是生物的

  • and this tells us not only the species

    它說明的

  • that are living in the canopy,

    不只是在樹冠層的生物

  • but it tells us a lot of information

    還有很多的資訊

  • about the rest of the species that occupy the rainforest.

    關於雨林中的其他物種

  • Now I created the CAO

    我創立CAO的目的

  • in order to answer questions that have proven

    是為了解開不論從任何制高點

  • extremely challenging to answer from any other vantage point,

    都具有相當挑戰性的問題

  • such as from the ground, or from satellite sensors.

    不論是從地面或是衛星感測器

  • I want to share three of those questions with you today.

    今天我要跟你分享其中三個問題

  • The first questions is,

    第一個問題

  • how do we manage our carbon reserves

    我們該如何管理

  • in tropical forests?

    熱帶森林的碳儲量?

  • Tropical forests contain a huge amount of carbon in the trees,

    熱帶森林的樹木含有大量的二氧化碳

  • and we need to keep that carbon in those forests

    我們必須把二氧化碳保留在森林裡

  • if we're going to avoid any further global warming.

    如果要避免地球暖化持續惡化

  • Unfortunately, global carbon emissions

    遺憾的是全球森林砍伐

  • from deforestation

    所釋出的碳排放量

  • now equals the global transportation sector.

    已經等於全球交通釋出的碳排放量

  • That's all ships, airplanes, trains and automobiles combined.

    這包含所有的船隻、飛機、火車、汽車總和

  • So it's understandable that policy negotiators

    所以政策談判者當然會

  • have been working hard to reduce deforestation,

    持續努力減低森林砍伐

  • but they're doing it on landscapes

    但是這些地區 在科學領域中

  • that are hardly known to science.

    都是相對陌生的區域

  • If you don't know where the carbon is exactly,

    如果不確實知道二氧化碳在哪裡

  • in detail, how can you know what you're losing?

    又該如何知道會失去什麼呢?

  • Basically, we need a high-tech accounting system.

    其實我們需要一個高科技的會計系統

  • With our system, we're able to see the carbon stocks

    在我們的系統裡 你可以仔細看見

  • of tropical forests in utter detail.

    熱帶雨林的碳儲量

  • The red shows, obviously, closed-canopy tropical forest,

    紅色區塊是熱帶森林的茂密樹冠層

  • and then you see the cookie cutting,

    然後像是蛋糕被切開

  • or the cutting of the forest in yellows and greens.

    黃色跟綠色區塊是被開發的地帶

  • It's like cutting a cake except this cake

    就像切蛋糕一樣

  • is about whale deep.

    只是這塊蛋糕大概有一隻鯨魚這麼深

  • And yet, we can zoom in and see the forest

    我們能同時放大

  • and the trees at the same time.

    看看森林還有樹木

  • And what's amazing is, even though we flew

    驚人的是

  • very high above this forest,

    儘管我們從高空飛過

  • later on in analysis, we can go in

    分析之後 我們能進入

  • and actually experience the treetrops,

    並且體驗樹冠層的

  • leaf by leaf, branch by branch,

    每一片葉 每一個樹枝

  • just as the other species that live in this forest

    如同森林裡的其他生物一樣

  • experience it along with the trees themselves.

    親身體驗這些樹木

  • We've been using the technology to explore

    我們應用這種科技探索

  • and to actually put out the first carbon geographies

    並整合出第一份

  • in high resolution

    高解析度的碳地圖

  • in faraway places like the Amazon Basin

    包含遙遠的亞馬遜河流域

  • and not-so-faraway places like the United States

    還有鄰近的

  • and Central America.

    美國跟中美洲

  • What I'm going to do is I'm going to take you on a high-resolution, first-time tour

    現在我要帶你體驗 首度的高解析碳地理圖

  • of the carbon landscapes of Peru and then Panama.

    探索祕魯跟巴拿馬

  • The colors are going to be going from red to blue.

    顏色會由紅色到藍色

  • Red is extremely high carbon stocks,

    紅色是極高碳含量

  • your largest cathedral forests you can imagine,

    這裡有你能想像到最壯觀的森林

  • and blue are very low carbon stocks.

    藍色代表很低的碳含量

  • And let me tell you, Peru alone is an amazing place,

    單單是祕魯 就是一個不可思議的地方

  • totally unknown in terms of its carbon geography

    她的碳地圖

  • until today.

    從未被探討過

  • We can fly to this area in northern Peru

    我們先飛到祕魯北部

  • and see super high carbon stocks in red,

    紅色代表極高碳含量

  • and the Amazon River and floodplain

    亞馬遜河域跟洪氾區

  • cutting right through it.

    切過了這個地區

  • We can go to an area of utter devastation

    再看看狀況極糟的地方

  • caused by deforestation in blue,

    因為森林砍伐轉為藍色

  • and the virus of deforestation spreading out in orange.

    森林砍伐如同病毒 蔓延到橘色的區域

  • We can also fly to the southern Andes

    我們再飛到安第斯山脈的南方

  • to see the tree line and see exactly how

    看看森林的邊緣

  • the carbon geography ends

    隨著上升的山脈地形

  • as we go up into the mountain system.

    觀察碳地圖如何止盡

  • And we can go to the biggest swamp in the western Amazon.

    接著來到西亞馬遜的最大沼澤地

  • It's a watery dreamworld

    這個夢幻水澤地

  • akin to Jim Cameron's "Avatar."

    類似詹姆斯·卡麥隆的「阿凡達」

  • We can go to one of the smallest tropical countries,

    我們可以到最小的熱帶國家

  • Panama, and see also a huge range

    巴拿馬

  • of carbon variation,

    觀察變化萬千的碳地圖

  • from high in red to low in blue.

    從高密度的紅色 到低密度的藍色

  • Unfortunately, most of the carbon is lost in the lowlands,

    可惜低地的碳含量 已經消失殆盡

  • but what you see that's left,

    但是看到左側的區塊

  • in terms of high carbon stocks in greens and reds,

    紅色跟綠色標示的高碳含量

  • is the stuff that's up in the mountains.

    是在山區的部分

  • One interesting exception to this

    有個例外 很有趣

  • is right in the middle of your screen.

    在銀幕的正中央

  • You're seeing the buffer zone around the Panama Canal.

    是巴拿馬運河周遭的緩衝區

  • That's in the reds and yellows.

    紅色跟黃色的區塊

  • The canal authorities are using force

    運河的管理單位 以強制手段

  • to protect their watershed and global commerce.

    捍衛的流域跟全球經濟

  • This kind of carbon mapping

    這樣的碳地圖描繪

  • has transformed conservation

    改變了環境保育

  • and resource policy development.

    以及資源政策的發展

  • It's really advancing our ability to save forests

    大大提升我們的能力

  • and to curb climate change.

    在保育森林跟抑制氣候變遷 有很大助益

  • My second question: How do we prepare for climate change

    我的第二個問題是: 我們該如何為氣候變遷做準備?

  • in a place like the Amazon rainforest?

    以亞馬遜熱帶雨林為例

  • Let me tell you, I spend a lot of time

    我花了很多時間在這些地方

  • in these places, and we're seeing the climate changing already.

    而且我們已經看到氣候變遷

  • Temperatures are increasing,

    溫度上升

  • and what's really happening is we're getting a lot of droughts,

    真實的是 乾旱越來越頻繁

  • recurring droughts.

    重複不斷的乾旱

  • The 2010 mega-drought is shown here

    這裡顯示2010年的超級旱災

  • with red showing an area about the size of Western Europe.

    標註的紅色區塊 有西歐這麼大

  • The Amazon was so dry in 2010

    2010年的亞馬遜非常乾燥

  • that even the main stem of the Amazon river itself

    甚至連亞馬遜河的主流

  • dried up partially, as you see in the photo

    有一部分都乾枯了

  • in the lower portion of the slide.

    在幻燈片的下半部可以看到

  • What we found is that in very remote areas,

    我們發現在非常偏遠地區

  • these droughts are having a big negative impact

    這些乾旱對於熱帶森林

  • on tropical forests.

    有很大的負面衝擊

  • For example, these are all of the dead trees in red

    舉例 紅色顯示的是因為2010年旱災

  • that suffered mortality following the 2010 drought.

    受災的枯死樹木

  • This area happens to be on the border

    受災區在

  • of Peru and Brazil,

    祕魯跟巴西的邊境

  • totally unexplored,

    是從未被探索過的地帶

  • almost totally unknown scientifically.

    幾乎是科學上的未知地帶

  • So what we think, as Earth scientists,

    身為地球科學家

  • is species are going to have to migrate

    我們認為物種會遷移

  • with climate change from the east in Brazil

    隨著氣候的變遷

  • all the way west into the Andes

    從巴西東部 往西移動到安地斯

  • and up into the mountains

    往山上遷移

  • in order to minimize their exposure to climate change.

    儘量減低氣候變遷 對他們的衝擊

  • One of the problems with this is that humans

    其中一個問題就是

  • are taking apart the western Amazon as we speak.

    人類整在瓦解西亞馬遜區域

  • Look at this 100-square-kilometer gash

    看看這個100平方公尺的開發區

  • in the forest created by gold miners.

    這是金礦工在森林裡開墾的

  • You see the forest in green in 3D,

    3D的綠色區塊是森林

  • and you see the effects of gold mining

    還有金礦開採帶來的效果

  • down below the soil surface.

    在地底下的系統裡

  • Species have nowhere to migrate in a system like this, obviously.

    物種沒有任何地方可以遷移

  • If you haven't been to the Amazon, you should go.

    如果你還沒去過亞馬遜 你真應該去

  • It's an amazing experience every time,

    不論你去哪裡

  • no matter where you go.

    每一次都是不可思議的經驗

  • You're going to probably see it this way, on a river.

    你可能會看到這種河上景色

  • But what happens is a lot of times

    但很多時候

  • the rivers hide what's really going on

    河流會隱藏森林裡的

  • back in the forest itself.

    事實真相

  • We flew over this same river,

    我們飛越同一條河流

  • imaged the system in 3D.

    以3D掃描這個河域系統

  • The forest is on the left.

    左邊的有森林

  • And then we can digitally remove the forest

    然後我們以數位分析 把森林移開

  • and see what's going on below the canopy.

    觀察樹冠層底下

  • And in this case, we found gold mining activity,

    結果我們發現金礦開採活動

  • all of it illegal,

    全都是非法的

  • set back away from the river's edge,

    全都遠離河岸

  • as you'll see in those strange pockmarks

    看那些奇怪的麻子點點

  • coming up on your screen on the right.

    在銀幕的右側

  • Don't worry, we're working with the authorities

    放心 我們已經跟當局在努力

  • to deal with this and many, many other problems

    解決這個地區的採礦問題

  • in the region.

    和許多其他的問題

  • So in order to put together a conservation plan

    為了成立保育計畫

  • for these unique, important corridors

    給這些獨特又重要的廊道

  • like the western Amazon and the Andes Amazon corridor,

    例如西亞馬遜 以及安地斯亞馬遜廊道

  • we have to start making

    我們開始製作

  • geographically explicit plans now.

    地理上明確的計畫

  • How do we do that if we don't know the geography of biodiversity in the region,

    如果不清楚這區域 生物多樣性的地理

  • if it's so unknown to science?

    又該怎麼著手呢?

  • So what we've been doing is using

    所以我們應用

  • the laser-guided spectroscopy from the CAO

    CAO的雷射導引光譜

  • to map for the first time the biodiversity

    繪製第一個亞馬遜雨林的

  • of the Amazon rainforest.

    生物多樣性地圖

  • Here you see actual data showing different species in different colors.

    這個資料以顏色標註不同的物種

  • Reds are one type of species, blues are another,

    紅色的是相同物種 藍色則是另一種

  • and greens are yet another.

    綠色也是不同種的物種

  • And when we take this together and scale up

    當我們放大這張圖

  • to the regional level,

    到區域性的規模

  • we get a completely new geography

    我們看見一個全新的地理圖像

  • of biodiversity unknown prior to this work.

    顯示前所未知的生物多樣性

  • This tells us where the big biodiversity changes

    這告訴我們哪裡有大規模的生物樣性變化

  • occur from habitat to habitat,

    從一個棲息地 到另一個棲息地

  • and that's really important because it tells us

    這非常重要 因為我們可以知道

  • a lot about where species may migrate to

    隨著氣候的變遷

  • and migrate from as the climate shifts.

    很多物種的遷移動向

  • And this is the pivotal information that's needed

    保護區發展計劃的決策者

  • by decision makers to develop protected areas

    正需要這種以他們區域背景做規劃的關鍵資訊

  • in the context of their regional development plans.

    正需要這種以他們區域背景做規劃的關鍵資訊

  • And third and final question is,

    第三個也是最後的問題

  • how do we manage biodiversity on a planet

    我們如何管理地球上

  • of protected ecosystems?

    受保護的生態系裡的生物多樣性?

  • The example I started out with about lions hunting,

    我最初舉例的獅子狩獵

  • that was a study we did

    那是我們的一項研究

  • behind the fence line of a protected area

    在南非的

  • in South Africa.

    圈化保護區裡

  • And the truth is, much of Africa's nature

    事實上 未來非洲大部分的自然

  • is going to persist into the future

    將會在這種圈化的保護區裡延續

  • in protected areas like I show in blue on the screen.

    像銀幕上看到的藍色區塊

  • This puts incredible pressure and responsibility

    這在公園的管理處

  • on park management.

    造成極大的壓力跟責任

  • They need to do and make decisions

    他們必須做出並且執行決策

  • that will benefit all of the species that they're protecting.

    讓所有受保護的物種受益

  • Some of their decisions have really big impacts.

    他們的一些決策有重大的影響

  • For example, how much and where

    例如 以火作為管理工具的

  • to use fire as a management tool?

    次數跟地點

  • Or, how to deal with a large species like elephants,

    或是如何管理大型動物 例如大象

  • which may, if their populations get too large,

    大象可能繁衍過量

  • have a negative impact on the ecosystem

    對生態系裡的其他物種

  • and on other species.

    產生負面衝擊

  • And let me tell you, these types of dynamics

    這些動態變化

  • really play out on the landscape.

    是真實在大地上演的

  • In the foreground is an area with lots of fire

    前景看到的是大量用火

  • and lots of elephants:

    還有很多大象的地帶

  • wide open savanna in blue, and just a few trees.

    藍色是開放性的大草原 樹很少

  • As we cross this fence line, now we're getting

    當我們跨過這個圍籬

  • into an area that has had protection from fire

    進入的地區 用火適當

  • and zero elephants:

    也沒有大象

  • dense vegetation, a radically different ecosystem.

    茂密的植被 跟一個全然不同的生態系

  • And in a place like Kruger,

    在克魯格國家公園

  • the soaring elephant densities

    大象的族群暴增

  • are a real problem.

    已經是個難題

  • I know it's a sensitive issue for many of you,

    我知道對很多人而言 這議題很敏感

  • and there are no easy answers with this.

    這也沒有簡單的答案

  • But what's good is that the technology we've developed

    但往好處想 我們發展的科技

  • and we're working with in South Africa, for example,

    還有例如我們跟南非的合作

  • is allowing us to map every single tree in the savanna,

    讓我們描繪了大草原上的每棵樹

  • and then through repeat flights

    經過反覆的飛行

  • we're able to see which trees

    我們看到哪些樹

  • are being pushed over by elephants,

    被大象推倒

  • in the red as you see on the screen, and how much that's happening

    從銀幕上的紅色 可以看見

  • in different types of landscapes in the savanna.

    還有次數的頻繁度 在大草原上不同的地景

  • That's giving park managers

    這是公園管理員

  • a very first opportunity to use

    有史以來第一次有機會用

  • tactical management strategies that are more nuanced

    更細微的管理策略

  • and don't lead to those extremes that I just showed you.

    進而避免我們剛看到的極端狀況

  • So really, the way we're looking

    所以 我們現在看待保護區的方式

  • at protected areas nowadays

    所以 我們現在看待保護區的方式

  • is to think of it as tending to a circle of life,

    已經趨向一種生命循環

  • where we have fire management,

    我們有用火管理, 大象管理

  • elephant management, those impacts on the structure of the ecosystem,

    這些衝擊生態系統的結構

  • and then those impacts

    而且這些衝擊

  • affecting everything from insects

    影響的所有物種

  • up to apex predators like lions.

    小至昆蟲 大至食物鏈頂端的獅子

  • Going forward, I plan to greatly expand

    在未來 我計劃更大量使用

  • the airborne observatory.

    卡內基空中天文台號

  • I'm hoping to actually put the technology into orbit

    我希望讓這技術上星球軌道

  • so we can manage the entire planet

    以這種技術

  • with technologies like this.

    管理我們的整個星球

  • Until then, you're going to find me flying

    在那之前 你會看到我不停飛行

  • in some remote place that you've never heard of.

    在你從未耳聞的偏遠地區

  • I just want to end by saying that technology is

    最後我要說 在管理我們的星球

  • absolutely critical to managing our planet,

    這項科技絕對有關鍵的角色

  • but even more important is the understanding

    但更重要的是理解它

  • and wisdom to apply it.

    還有妥善的運用

  • Thank you.

    謝謝

  • (Applause)

    (掌聲)

Technology can change our understanding of nature.

我們對自然的認識 隨著科技而改變

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