以下是為大家整理的關(guān)于《英語科普知識(shí)：林木組成改變與氣候變化無關(guān)》文章，供大家學(xué)習(xí)參考！
小編推薦： 英文歌詞| 英文網(wǎng)名| 英語祝福語| 英文名字| 英語詩歌| 英語作文網(wǎng) Change in disturbance1 regimes -- rather than a change in climate -- is largely responsible for altering the composition of Eastern forests, according to a researcher in Penn State's College of Agricultural Sciences. Forests in the Eastern United States remain in a state of "disequilibrium" stemming from the clear-cutting and large-scale burning that occurred in the late 1800s and early 1900s, contends Marc Abrams, professor of forest ecology and physiology2. Moreover, Abrams noted3, since about 1930 -- during the Smokey Bear era -- aggressive forest-fire suppression has had a far greater influence on shifts in dominant4 tree species than minor5 differences in temperature. "Looking at the historical development of Eastern forests, the results of the change in types of disturbances6 -- both natural and man-caused -- are much more significant than any change in climate," said Abrams, who is the Steimer Professor of Agriculture in the Department of Ecosystem7 Science and Management. "Over the last 50 years, most environmental science has focused on the impact of climate change. In some systems, however, climate change impacts have not been as profound as in others. This includes the forest composition of the eastern U.S." To determine how forest tree species have responded to changes in disturbance regimes, temperature and precipitation over long periods of time, Abrams collaborated8 with Gregory Nowacki, a scientist with the U.S. Department of Agriculture Forest Service office in Milwaukee, on a study of the tolerance9 and sensitivity of trees to various factors. "Many ecological10 phenomena11 combine to direct vegetation trends over time, with climate and disturbance playing prominent roles," said Nowacki, who received his Ph.D under Abrams. "To help decipher their relative importance during Euro-American times, we employed a unique approach whereby tree species/genera were partitioned into temperature, shade tolerance and pyrogenicity classes and applied12 to comparative tree-census data."
1 disturbance BsNxk n.*，騷動(dòng)；打擾，干擾；(身心)失調(diào) 參考例句： He is suffering an emotional disturbance.他的情緒受到了困擾。 You can work in here without any disturbance.在這兒你可不受任何干擾地工作。 2 physiology uAfyL n.生理學(xué)，生理機(jī)能 參考例句： He bought a book about physiology.他買了一本生理學(xué)方面的書。 He was awarded the Nobel Prize for achievements in physiology.他因生理學(xué)方面的建樹而被授予諾貝爾獎(jiǎng)。 3 noted 5n4zXc adj.的，知名的 參考例句： The local hotel is noted for its good table.當(dāng)?shù)氐哪羌揖频暌圆褪尘蓝Q。 Jim is noted for arriving late for work.吉姆上班遲到出了名。 4 dominant usAxG adj.支配的，統(tǒng)治的；占優(yōu)勢(shì)的；顯性的；n.主因，要素，主要的人(或物)；顯性基因 參考例句： The British were formerly dominant in India.英國人從前統(tǒng)治印度。 She was a dominant figure in the French film industry.她在法國電影界是個(gè)舉足輕重的人物。 5 minor e7fzR adj.較小(少)的，較次要的；n.輔修學(xué)科；vi.輔修 參考例句： The young actor was given a minor part in the new play.年輕的男演員在這出新戲里被分派擔(dān)任一個(gè)小角色。 I gave him a minor share of my wealth.我把小部分財(cái)產(chǎn)給了他。 6 disturbances a0726bd74d4516cd6fbe05e362bc74af n.*( disturbance的名詞復(fù)數(shù) )；打擾；困擾；障礙 參考例句： The government has set up a commission of inquiry into the disturbances at the prison. 政府成立了一個(gè)委員會(huì)來調(diào)查監(jiān)獄*事件。 Extra police were called in to quell the disturbances. 已調(diào)集了增援警力來平定*。 7 ecosystem Wq4xz n.生態(tài)系統(tǒng) 參考例句： This destroyed the ecosystem of the island.這樣破壞了島上的生態(tài)系統(tǒng)。 We all have an interest in maintaining the integrity of the ecosystem.維持生態(tài)系統(tǒng)的完整是我們共同的利益。 8 collaborated c49a4f9c170cb7c268fccb474f5f0d4f 合作( collaborate的過去式和過去分詞 )； 勾結(jié)叛國 參考例句： We have collaborated on many projects over the years. 這些年來我們合作搞了許多項(xiàng)目。 We have collaborated closely with the university on this project. 我們與大學(xué)在這個(gè)專案上緊密合作。 9 tolerance Lnswz n.寬容；容忍，忍受；耐藥力；公差 參考例句： Tolerance is one of his strengths.寬容是他的一個(gè)優(yōu)點(diǎn)。 Human beings have limited tolerance of noise.人類對(duì)噪音的忍耐力有限。 10 ecological IrRxX adj.生態(tài)的，生態(tài)學(xué)的 參考例句： The region has been declared an ecological disaster zone.這個(gè)地區(qū)已經(jīng)宣布為生態(tài)災(zāi)難區(qū)。 Each animal has its ecological niche.每種動(dòng)物都有自己的生態(tài)位. 11 phenomena 8N9xp n.現(xiàn)象 參考例句： Ade couldn't relate the phenomena with any theory he knew.艾德無法用他所知道的任何理論來解釋這種現(xiàn)象。 The object of these experiments was to find the connection,if any,between the two phenomena.這些實(shí)驗(yàn)的目的就是探索這兩種現(xiàn)象之間的聯(lián)系，如果存在著任何聯(lián)系的話。 12 applied Tz2zXA adj.應(yīng)用的；v.應(yīng)用，適用 參考例句： She plans to take a course in applied linguistics.她打算學(xué)習(xí)應(yīng)用語言學(xué)課程。 This cream is best applied to the face at night.這種乳霜好晚上擦臉用。
小編推薦： 英文歌詞| 英文網(wǎng)名| 英語祝福語| 英文名字| 英語詩歌| 英語作文網(wǎng) Change in disturbance1 regimes -- rather than a change in climate -- is largely responsible for altering the composition of Eastern forests, according to a researcher in Penn State's College of Agricultural Sciences. Forests in the Eastern United States remain in a state of "disequilibrium" stemming from the clear-cutting and large-scale burning that occurred in the late 1800s and early 1900s, contends Marc Abrams, professor of forest ecology and physiology2. Moreover, Abrams noted3, since about 1930 -- during the Smokey Bear era -- aggressive forest-fire suppression has had a far greater influence on shifts in dominant4 tree species than minor5 differences in temperature. "Looking at the historical development of Eastern forests, the results of the change in types of disturbances6 -- both natural and man-caused -- are much more significant than any change in climate," said Abrams, who is the Steimer Professor of Agriculture in the Department of Ecosystem7 Science and Management. "Over the last 50 years, most environmental science has focused on the impact of climate change. In some systems, however, climate change impacts have not been as profound as in others. This includes the forest composition of the eastern U.S." To determine how forest tree species have responded to changes in disturbance regimes, temperature and precipitation over long periods of time, Abrams collaborated8 with Gregory Nowacki, a scientist with the U.S. Department of Agriculture Forest Service office in Milwaukee, on a study of the tolerance9 and sensitivity of trees to various factors. "Many ecological10 phenomena11 combine to direct vegetation trends over time, with climate and disturbance playing prominent roles," said Nowacki, who received his Ph.D under Abrams. "To help decipher their relative importance during Euro-American times, we employed a unique approach whereby tree species/genera were partitioned into temperature, shade tolerance and pyrogenicity classes and applied12 to comparative tree-census data."
1 disturbance BsNxk n.*，騷動(dòng)；打擾，干擾；(身心)失調(diào) 參考例句： He is suffering an emotional disturbance.他的情緒受到了困擾。 You can work in here without any disturbance.在這兒你可不受任何干擾地工作。 2 physiology uAfyL n.生理學(xué)，生理機(jī)能 參考例句： He bought a book about physiology.他買了一本生理學(xué)方面的書。 He was awarded the Nobel Prize for achievements in physiology.他因生理學(xué)方面的建樹而被授予諾貝爾獎(jiǎng)。 3 noted 5n4zXc adj.的，知名的 參考例句： The local hotel is noted for its good table.當(dāng)?shù)氐哪羌揖频暌圆褪尘蓝Q。 Jim is noted for arriving late for work.吉姆上班遲到出了名。 4 dominant usAxG adj.支配的，統(tǒng)治的；占優(yōu)勢(shì)的；顯性的；n.主因，要素，主要的人(或物)；顯性基因 參考例句： The British were formerly dominant in India.英國人從前統(tǒng)治印度。 She was a dominant figure in the French film industry.她在法國電影界是個(gè)舉足輕重的人物。 5 minor e7fzR adj.較小(少)的，較次要的；n.輔修學(xué)科；vi.輔修 參考例句： The young actor was given a minor part in the new play.年輕的男演員在這出新戲里被分派擔(dān)任一個(gè)小角色。 I gave him a minor share of my wealth.我把小部分財(cái)產(chǎn)給了他。 6 disturbances a0726bd74d4516cd6fbe05e362bc74af n.*( disturbance的名詞復(fù)數(shù) )；打擾；困擾；障礙 參考例句： The government has set up a commission of inquiry into the disturbances at the prison. 政府成立了一個(gè)委員會(huì)來調(diào)查監(jiān)獄*事件。 Extra police were called in to quell the disturbances. 已調(diào)集了增援警力來平定*。 7 ecosystem Wq4xz n.生態(tài)系統(tǒng) 參考例句： This destroyed the ecosystem of the island.這樣破壞了島上的生態(tài)系統(tǒng)。 We all have an interest in maintaining the integrity of the ecosystem.維持生態(tài)系統(tǒng)的完整是我們共同的利益。 8 collaborated c49a4f9c170cb7c268fccb474f5f0d4f 合作( collaborate的過去式和過去分詞 )； 勾結(jié)叛國 參考例句： We have collaborated on many projects over the years. 這些年來我們合作搞了許多項(xiàng)目。 We have collaborated closely with the university on this project. 我們與大學(xué)在這個(gè)專案上緊密合作。 9 tolerance Lnswz n.寬容；容忍，忍受；耐藥力；公差 參考例句： Tolerance is one of his strengths.寬容是他的一個(gè)優(yōu)點(diǎn)。 Human beings have limited tolerance of noise.人類對(duì)噪音的忍耐力有限。 10 ecological IrRxX adj.生態(tài)的，生態(tài)學(xué)的 參考例句： The region has been declared an ecological disaster zone.這個(gè)地區(qū)已經(jīng)宣布為生態(tài)災(zāi)難區(qū)。 Each animal has its ecological niche.每種動(dòng)物都有自己的生態(tài)位. 11 phenomena 8N9xp n.現(xiàn)象 參考例句： Ade couldn't relate the phenomena with any theory he knew.艾德無法用他所知道的任何理論來解釋這種現(xiàn)象。 The object of these experiments was to find the connection,if any,between the two phenomena.這些實(shí)驗(yàn)的目的就是探索這兩種現(xiàn)象之間的聯(lián)系，如果存在著任何聯(lián)系的話。 12 applied Tz2zXA adj.應(yīng)用的；v.應(yīng)用，適用 參考例句： She plans to take a course in applied linguistics.她打算學(xué)習(xí)應(yīng)用語言學(xué)課程。 This cream is best applied to the face at night.這種乳霜好晚上擦臉用。