| Today, time and time again, we're hearing stories of species on the move. Climate change and the great flow of human traffic around the globe means that species once isolated, are now springing up in the most unexpected places. And this mixing up of the world's species is starting to have significant consequences. More than 40% of Britain's wild plants are exotic species, introduced by us humans over the last thousand years. That's sumac, not native. Not native. That's not native, that's not native. What's that? That's Sycamore, that's not native. Yeah. I've come to London's urban jungle with museum botanist Mark Spencer. We're on the hunt for a new generation of exotic plants that are about to change the face of the British landscape. This here is the Loquat tree which is thought native to this country. It's actually a plant from East Asia, China, Japan. It's been grown in that part of the world for centuries. And this plant itself has actually really just been grown as an ornamental in this country for about 200 years, and never produced fruit because for many years our climate just wasn't warm enough. So what's different, what's going on now, then? It's just beginning to be able to, really, in the last ten years or so produce a lot of fruit. So for example in 2003, the really hot summer we had, I saw trees in people's gardens in London with hundreds and hundreds of fruit. | |
| 今天，一次又一次地，我们听到物种迁移的消息，气候变化和全球大规模交通，使得曾经只在特定地区生存的生物。在出人意料的地方大肆繁衍，被打乱的世界物种分布，正在引发严峻后果。英国超过百分之四十的野生植物，是在过去一千年内人为引进的。 那是漆树，非本土物种，非本土物种，这也不是，那个也不是。 -那是什么 -美国梧桐，非本土的。 我和博物馆生物学家马克·斯宾塞一同来到伦敦城市森林寻找即将改变英国自然风光的新一代外来植物 这是一棵枇杷树，它不是我国本土的植物。它来自东亚国家，比如中国和日本，这种树在东亚生长了数世纪，于大约两百年前被引进到英国。作为观赏植物种植，两百年来从未结实，因为那时英国气候不够温暖。 那么现在有什么变化呢？ 从大约十年前开始，英国的枇杷树开始结出果实。例如在2003年，那个非常炎热的夏天，我看到伦敦市民花圃里的枇杷树结了成百上千的果实。 |
| Today, time and time again, we' re hearing stories of species on the move. Climate change and the great flow of human traffic around the globe means that species once isolated, are now springing up in the most unexpected places. And this mixing up of the world' s species is starting to have significant consequences. More than 40 of Britain' s wild plants are exotic species, introduced by us humans over the last thousand years. That' s sumac, not native. Not native. That' s not native, that' s not native. What' s that? That' s Sycamore, that' s not native. Yeah. I' ve come to London' s urban jungle with museum botanist Mark Spencer. We' re on the hunt for a new generation of exotic plants that are about to change the face of the British landscape. This here is the Loquat tree which is thought native to this country. It' s actually a plant from East Asia, China, Japan. It' s been grown in that part of the world for centuries. And this plant itself has actually really just been grown as an ornamental in this country for about 200 years, and never produced fruit because for many years our climate just wasn' t warm enough. So what' s different, what' s going on now, then? It' s just beginning to be able to, really, in the last ten years or so produce a lot of fruit. So for example in 2003, the really hot summer we had, I saw trees in people' s gardens in London with hundreds and hundreds of fruit. | |
| jin tian, yi ci you yi ci di, wo men ting dao wu zhong qian yi de xiao xi, qi hou bian hua he quan qiu da gui mo jiao tong, shi de ceng jing zhi zai te ding di qu sheng cun de sheng wu. zai chu ren yi liao de di fang da si fan yan, bei da luan de shi jie wu zhong fen bu, zheng zai yin fa yan jun hou guo. ying guo chao guo bai fen zhi si shi de ye sheng zhi wu, shi zai guo qu yi qian nian nei ren wei yin jin de. na shi qi shu, fei ben tu wu zhong, fei ben tu wu zhong, zhe ye bu shi, na ge ye bu shi. na shi shen me mei guo wu tong, fei ben tu de. wo he bo wu guan sheng wu xue jia ma ke si bin se yi tong lai dao lun dun cheng shi sen lin xun zhao ji jiang gai bian ying guo zi ran feng guang de xin yi dai wai lai zhi wu zhe shi yi ke pi pa shu, ta bu shi wo guo ben tu de zhi wu. ta lai zi dong ya guo jia, bi ru zhong guo he ri ben, zhe zhong shu zai dong ya sheng zhang le shu shi ji, yu da yue liang bai nian qian bei yin jin dao ying guo. zuo wei guan shang zhi wu zhong zhi, liang bai nian lai cong wei jie shi, yin wei na shi ying guo qi hou bu gou wen nuan. na me xian zai you shen me bian hua ne? cong da yue shi nian qian kai shi, ying guo de pi pa shu kai shi jie chu guo shi. li ru zai 2003 nian, na ge fei chang yan re de xia tian, wo kan dao lun dun shi min hua pu li de pi pa shu jie le cheng bai shang qian de guo shi. |
| Today, time and time again, we' re hearing stories of species on the move. Climate change and the great flow of human traffic around the globe means that species once isolated, are now springing up in the most unexpected places. And this mixing up of the world' s species is starting to have significant consequences. More than 40 of Britain' s wild plants are exotic species, introduced by us humans over the last thousand years. That' s sumac, not native. Not native. That' s not native, that' s not native. What' s that? That' s Sycamore, that' s not native. Yeah. I' ve come to London' s urban jungle with museum botanist Mark Spencer. We' re on the hunt for a new generation of exotic plants that are about to change the face of the British landscape. This here is the Loquat tree which is thought native to this country. It' s actually a plant from East Asia, China, Japan. It' s been grown in that part of the world for centuries. And this plant itself has actually really just been grown as an ornamental in this country for about 200 years, and never produced fruit because for many years our climate just wasn' t warm enough. So what' s different, what' s going on now, then? It' s just beginning to be able to, really, in the last ten years or so produce a lot of fruit. So for example in 2003, the really hot summer we had, I saw trees in people' s gardens in London with hundreds and hundreds of fruit. | |
| jīn tiān, yī cì yòu yī cì dì, wǒ men tīng dào wù zhǒng qiān yí de xiāo xī, qì hòu biàn huà hé quán qiú dà guī mó jiāo tōng, shǐ de céng jīng zhī zài tè dìng dì qū shēng cún de shēng wù. zài chū rén yì liào de dì fāng dà sì fán yǎn, bèi dǎ luàn de shì jiè wù zhǒng fēn bù, zhèng zài yǐn fā yán jùn hòu guǒ. yīng guó chāo guò bǎi fēn zhī sì shí de yě shēng zhí wù, shì zài guò qù yī qiān nián nèi rén wéi yǐn jìn de. nà shi qī shù, fēi běn tǔ wù zhǒng, fēi běn tǔ wù zhǒng, zhè yě bú shì, nà gè yě bú shì. nà shi shén me měi guó wú tóng, fēi běn tǔ de. wǒ hé bó wù guǎn shēng wù xué jiā mǎ kè sī bīn sè yī tóng lái dào lún dūn chéng shì sēn lín xún zhǎo jí jiāng gǎi biàn yīng guó zì rán fēng guāng de xīn yī dài wài lái zhí wù zhè shì yī kē pí pá shù, tā bú shì wǒ guó běn tǔ de zhí wù. tā lái zì dōng yà guó jiā, bǐ rú zhōng guó hé rì běn, zhè zhòng shù zài dōng yà shēng zhǎng le shù shì jì, yú dà yuē liǎng bǎi nián qián bèi yǐn jìn dào yīng guó. zuò wéi guān shǎng zhí wù zhòng zhí, liǎng bǎi nián lái cóng wèi jiē shi, yīn wèi nà shí yīng guó qì hòu bù gòu wēn nuǎn. nà me xiàn zài yǒu shén me biàn huà ne? cóng dà yuē shí nián qián kāi shǐ, yīng guó de pí pá shù kāi shǐ jié chū guǒ shí. lì rú zài 2003 nián, nà gè fēi cháng yán rè de xià tiān, wǒ kàn dào lún dūn shì mín huā pǔ lǐ de pí pá shù jié le chéng bǎi shàng qiān de guǒ shí. |
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