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The Effects Global Warming Have on Temperate Forests in Northern Asia

2020-05-20 来源: 51Due教员组 类别: Essay范文

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下面51due教员组为大家整理一篇优秀的代写范文- The Effects Global Warming Have on Temperate Forests in Northern Asia,供大家参考学习。这篇文章讲述的是随着时间的推移,全球变暖越来越明显,已成为当今世界各国人民普遍关注的问题。全球变暖将以某种方式对世界上许多事物产生影响,最终影响这些事物的生活。绝大多数人都知道,全球变暖是经济发展的结果,应该加以应对,以免在适当的时候给人们带来太多的不利影响。因此,以下将探讨全球变暖对北亚温带森林的影响,希望能为如何更好地处理全球变暖问题提供一些有见地的建议。

The Effects Global Warming Have on Temperate Forests in Northern Asia

Introduction

It is common sense that global warming is increasingly apparent as time goes by and it has developed to be an issue that has aroused the attention of people from all over the world nowadays. Global warming will exert impacts on many things in the world in one way or another so as to influence the life of those things in the end. The great majority of human beings know that global warming is the result of economic development and it should be dealt with in order not to bring too many detrimental effects toward people in the due time. Therefore the following will explore the effects global warming have on temperate forests in northern Asia, hoping that it can give some insightful suggestions as for how to better handle global warming for the sake of those temperate forests.

The Effects Global Warming Have on Temperate Forests in Northern Asia

When it comes to the effects global warming will have on temperate forests in northern Asia, what is a must to mention is that global warming will have both positive and negative effects on temperate forests in northern Asia at the same time. Or maybe it can be put in another way that global warming can be deemed as a double-edged sword toward temperate forests in northern Asia. Generally speaking, increased greenhouse gases and warmer temperatures can promote the growth in plant life, especially for those tolerant climate shifts (Christopher Caseio. 2017), which can be considered as the main positive effects that global warming can bring to the temperate forests.

To put the positive effects of global warming toward temperate forests in northern Asia more specifically, first and foremost comes that global warming will lead to higher temperate which can promote the growth of some kinds of plants. That is to say, some kinds of plants can grow faster in the higher temperature and their growth won’t be influenced much by the increase of temperature. The case is that if some plants can not grow better under the higher temperature, they can still grow the same regardless of the increase of temperature. The deciduous trees in the temperate forests in northern Asia are right one example that can react neutrally or positively toward the increase of temperature so that their growth won’t be affected by it. According to the 13-year research conducted by the U.S. Forest Service toward northern Asia, it has found that the growth of red cedar tree had increased by four percent out of the increase of temperature while shore pine had decreased by almost five percent (Gregor, H.D. 1998).

The second positive effect as can be brought by global warming toward temperate forests in northern Asia is the effect of carbon dioxide surplus. It is known to all of us that the increased carbon dioxide levels in the atmosphere are the most obvious phenomenon that is coinstantaneous with global warming. As a matter of fact, the increased carbon dioxide levels are conducive to the growth of trees because trees can absorb carbon dioxide at the first place and then transfer it to carbohydrates, which can help feed and become part of the trees in the end (Gregor, H.D. 1998). From this sense, we can say that the increase of carbon dioxide in the atmosphere is beneficial toward the growth of trees so that the trees can be able to grow better and better with the increasing carbon dioxide emissions. Apart from that, Gregor further explains that the increasing carbon dioxide in the atmosphere can benefit the growth of trees that are in the areas where there are fertile soil and sufficient water supplies (Gregor, H.D. 1998). It can be understood in this way that the fertile soil and sufficient water supplies are the precondition for trees to fully absorb carbon dioxide for growth. Otherwise trees can not take advantage of the carbon dioxide at all, let alone benefitting their growth afterwards. In this case, carbon dioxide may be useless and it won’t bring any benefit toward the trees at all.

In the paper about the impacts of climate change toward temperate forests, Ronald Mahoney has talked about his idea that the forests’ ability to store carbon lies in the overall ecosystem’s competence in responding to the changes of environmental conditions (Ronald Mahoney. 2011). In our mind, forests can play a significant part in carbon storage and it can help reduce greenhouse gases to large extent. But we do not know is that different forests have varying ability in storing carbon from one another and the ability of different forests depends on the forests’ ability in adapting to the environmental changes. To put it more specifically, the forest’s ability in adapting to the environmental changes will be determined by the below factors: disturbance regimes, species life cycle and species range (Ronald Mahoney. 2011). Therefore we can learn that the positive and negative effects as will be brought by global warming toward temperate forests may be different from one another and the detailed conditions will vary from one another in the reality. Also, Ronald Mahoney has put forward that species that call for very specific ecological conditions to succeed and those that can adjust themselves to a wide range of conditions and are at the fringes of their tolerance will represent the first and most dramatic climate change impacts (Ronald Mahoney. 2011). According to this, the impacts of global warming toward different species in the forests will as well differ from each other, which results from the species’ ability in adapting to the environment.

At the same time, the droughts led by the effect of precipitation shifts out of global warming can also be regarded as one positive effect of global warming toward temperate forests in northern Asia. Maybe some people may hold that it is quite impossible that draughts can relate to positive effects in that droughts are supposed to be closely connected with a series of negative effects. However, what Box Elgene O proposes is that draughts can play a role in hindering the ability of the trees to produce sap so that trees can be prevented from being hurt by the harmful insects, like pine beetles (Box Elgene O. 2015). It can be frequently seen that trees are corroded by many insects because the insects will absorb the sap of those trees so as to contribute to their own growth. In this sense, once the trees lose the ability to produce sap, then the trees may be safeguarded from being depraved by those harmful insects. Though the trees’ being unable to produce sap may be a big trouble for the trees’ growth, it may be trivial when compared with the great harm as will be bought by the harm caused by those unfavorable insects. And that is right why such effect of droughts can be deemed as a positive effect toward the temperate forests.

Besides, the glaciers’ melting caused by global warming can potentially contribute to larger space for opening up as temperate forests, which can be seen as a piece of good news toward the long-term development of temperate forests. It can be understood in this way that new real estate will be developed as temperate forests after the glaciers melt so as to provide habitats for more species within the forests. In this way, more and more species can be protected from becoming homeless in the due time. And what is reassuring to say is that the climatic conditions in northern Asia is hospitable for developing temperate forests and it can help contain more species, leading to the higher population dynamic in the final. Obviously, the growth and productivity of forests can be guaranteed and it is really an ideal state.

With the positive effects of global warming toward temperate forests in northern Asia being stated at length in the above, what follows is the negative effects of global warming toward temperate forests in northern Asia. Detailed speaking, climate change will alter the habitats to a large extent so as to result in disturbances and shifts which will make forest environments unlivable for the native animals and plants (Christopher Caseio. 2017).

The most obvious negative effect of global warming toward temperate forests in northern Asia is the effect of higher temperatures, which is the inadaptability of those species to the changing climate and the higher and higher temperate. It can be understood in this way that species that live in temperate forests are able to live well and thrive in temperate climates in that they are accustomed to living in them all the time. The aforementioned temperate climates refer to the climates that will not generally subject to sustained extremes in temperature and it is always mild in temperature (Christopher Caseio. 2017). So a fair knowledge can be obtained that those species have to adapt themselves to the changing climate or to migrate to other areas that can still provide them temperate climates once the climate changes in their living region. It can be readily predicted that those species may be confronted with the destiny to die off if they can not successfully fit in with the changing climate. As a result, some species may be put into the situation of becoming extinct and they may forever disappear in the end. And the increase of temperature will generally increase the length of the growing season of some tree species. In order to better illustrate his opinion, Christopher Caseio also adds the example that conifers really suffer much due to the appearance of extreme temperate and many have died due to the changing climate. Just as what has been stated in the above, the growth of shore pine had decreased by almost five percent, which can be well indicative of the negative effects of global warming toward the growth of plants (Virginal Gewin. 2007).

In addition, the increased carbon dioxide can as well bring negative effects toward the growth of trees to a certain extent. For trees that grow in the areas where there is no sufficient water, trees can not absorb the increasing carbon dioxide brought by global warming. What is worse, the increasing carbon dioxide may further make the trees dying and many trees will die out due to the nonstop carbon dioxide increase. In the meantime, when the trees are dying, they tend to produce more carbon dioxide than they can absorb, leading to greater and greater carbon dioxide emissions at last. Thus we can easily imagine that it will form a vicious circle because of the increase of carbon dioxide all the time and the larger number of trees become dying. In the meanwhile, what has to be pointed out is that the carbon dioxide that emitted by the dying trees will counter the existent carbon dioxide that absorbed by surrounding trees. Consequently, the forest’s death rate and population dynamic will both be negatively impacted by the increase of carbon dioxide to great degree. That is to say, the forest’s death rate will aggrandize because of the increase of carbon dioxide make most trees die, resulting in lower and lower population dynamic of the forest in the end. It can be interpreted in this way that the increasing forest’s death rate will result in larger number of trees dying, which necessarily mean lower population dynamic in the forests. The larger number of species within the forest, the higher population dynamic will be for the forest.

Moreover, the effect of precipitation shifts accounts for one major negative effect of global warming toward temperate forests in northern Asia. The Environmental Protection Agency of the United States, EPA has specified that global warming will result in the precipitation shifts which will cause catastrophic destruction toward forest habitats (EPA. 2016). The destroy that precipitation shifts will make toward the forest habitats can primarily be embodied via the incidence of droughts to some places on the one hand and flooding and severe rain toward other areas on the other hand. What is a pity to say is that both droughts and flooding will lead to severe damage toward the forest habitats. For one part, the dry conditions brought by droughts will naturally increase the risk of forest wildfires and higher temperatures will add up to such risk. Once the forest wildfires occur, all the species within the forest may turn to dust and ashes, leaving nothing in the forest finally. Actually, both the dry conditions and higher temperatures are the consequences of global warming, from which we can quickly detect the severity of it. The fact that forest wildfires are hard to be controlled because dry shrubs and trees can be offered as fuels to fires will as well aggravate the severity of it to a large extent and the natural periodic forest fires can always be seen as one kind of suppressions of the forests. If some trees are not resilient to the great degree of drought, then their growth will be hindered more or less. For another, flooding may rinse the nutrients in the soil completely so that the plants can not absorb the nutrition they need. At the same time, flooding may also potentially add nutrient pollutants or overloads, which depends on the water’s source. Thus we can readily predict that flooding will influence quite much toward the growth of those plants, or even directly determine whether a certain species can live or not.

Another negative effect of global warming toward temperate forests in northern Asia is the effect of forest disturbance as is one kind of indirect effect of global warming on temperate forests. Just as what has been mentioned in the above, some species have no choice but to migrate to other areas that can provide them the most appropriate living conditions, namely the temperate forests they come from. So these species will accordingly become invasive species toward the temperate forests in other places. Later on, what will appear is that some of these invasive species, like the mountain pine beetle, may cause damage toward the temperate trees because they are able to infest the whole region of the temperate forests step by step. Under such situation, the species that are originally living in the temperate forests may lose the dominance of the forests and they may be put to the edge of extinction. Besides, the emigration and dying off of some species within the temperate forests will naturally lead to the transformation of biological dynamic of the forests out of the residence taken up by some new species (Kauwe, Martin G. 2013). In the due time, the entire temperate forests may develop to be distinct and it is not the one as the past at all.

The same as Kauwe, Martin G, Morgan Erickson- Davis has also conducted a research on the impacts of global warming toward temperate forests. In his study, he has firstly explained that temperate forests are different from tropic forests and he defines the temperate forests as being made up of “dense stands of forest with canopies covering most of the sky, occur in areas with high annual rates of rainfall, and are composed mainly of tree species that don’t need fire to reproduce” (Morgan Erickson- Davis. 2015). Afterwards, he quickly elaborates on the negative effects of global warming toward temperate forests and he identifies global warming as a new threat for temperate forests. What he specifically states is that temperate forests can not be immune from climate change and they will all be influenced by the appearance of global warming more or less. The statistics he gives is that the coast redwoods may lose 23 percent of their current distribution, which can well suggest that the negative effects toward plants are really numerous and serious (Morgan Erickson- Davis. 2015). And the negative impacts that have exerted on temperate forests referred to by Morgan Erickson- Davis mainly include two aspects and those two are respectively climate change and land disturbances, resulting in harder and harder living conditions for all those species within the forests. After giving all the relevant information, he strongly suggests people to reduce greenhouse gas emissions to the best of their ability before it is too late so as to guarantee that temperate forests can keep benefitting human kind all the same, including clean air and water, carbon storage, climate regulation, recreation, wildlife habitat together with plenty of forest products (EPA. 2016).

Last but not the least comes that pest outbreak will also be led to by global warming and it will influence badly toward temperate forests. The pest outbreak will surely influence the growth and productivity of temperate forests in that the trees species in the forests are unable to grow well out of the harm caused by a large number of pests during their different growth period. Also, what is a must to point out is that air pollution is the most apparent negative effect as will be felt by temperate forests because those forests are in touch with the air all the time. The polluted air in the atmosphere will make the trees species grow worth and they are unable to thrive in the polluted air at all.

Conclusion

To sum up, a naturally conclusion can be drawn that global warming will have both positive and negative effects on the temperate forests in northern Asia and the negative effects outweigh the positive effects of it. Based on this, it is obvious that people should take necessary measures toward how to better deal with global warming so as not to cause too many detrimental effects toward the temperate forests in the due time. The growth of temperate forests will also closely relate to the life of the great majority of us human beings because we rely on the environment to live, which indicates that we should spare no efforts to protect our environment for the sake of our personal interest in approaching days. Only in this way can we realize the goal of sustainable development in the long run.

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