Forest Ecology and Management《森林生态学与管理》荷兰ISSN:0378-1127，1977年创刊，全年51期，Elsevier Science出版社，SCI、EI收录期刊，SCI 2005年影响因子577，2005年EI收录487篇。主要刊载森林管理和养护，特别是应用生物、生态和社会知识等管理人为森林和自然森林等方面的论文。Forest Policy and Economics《林业政策与经济》荷兰ISSN:1389-9341，1999年创刊，全年4期，Elsevier Science出版社，SCI、EI收录期刊，SCI 2005年影响因子066，2005年EI收录65篇。主要刊载农林政策问题，包括经济与规划，涉及林业和森林工业部门方面的论文Land Use Policy《土地利用政策》英国ISSN:0264-8377，1984年创刊，全年4期，Elsevier Science出版社，SSCI收录期刊，SSCI 2003年影响因子636。刊载各国城乡土地利用的论文、报告及社会、经济、政治、法律、自然、规划等方面文章，包括如地理、农业、森林、灌溉、环保、住房、市政、交通诸问题。Pedosphere《土壤圈》中国ISSN: 1002-160，Elsevier Science出版社，SCI收录期刊，SCI 2005年影响因子817。主要刊载整个土壤科学领域的最新成就和发展，环境科学条款、生态农业、生物、地球科学、森林等方面的论文。Acta Ecologica Sinica《生态学报》中国ISSN: 1872-2032，1981年创刊，全年12期，Elsevier Science出版社，主要刊载动物生态、植物生态、微生物生态、农业生态、森林生态、草地生态、土壤生态、海洋生态、淡水生态、景观生态、区域生态、化学生态、污染生态、经济生态、系统生态、城市生态、人类生态等生态学各领域的学术论文,报告和书评。
中国比较医学杂志、动物学研究、中国实验动物学报、实验动物科学。国内的这几个都是可以的。
国家地理 杂志
走遍～～～系列
中国比较医学杂志、动物学研究、中国实验动物学报、实验动物科学。国内的这几个都是可以的。
《大自然》可以算是一本不错的杂志。大自然创刊于1980年，谭邦杰、郑作新等老一辈生物学家都曾在上面撰文，很多现在的自然爱好者也都是看着《大自然》长大的。这本杂志内容严谨详实，不过图文排版风格与宣传工作还略显老旧。
sci对于大学生有何帮助?我们如何利用它?谢谢大家 报告首长： 应该是大写的英文字母SCI、EI。他们能帮助你们考研、赚钱、找工作、添加荣誉、为母校争光、使学校对你们增加投资。 同时也败坏了学风、促使抄袭早就蔓延到绝大部分本科毕业论文、给社会和国家制造巨大潜在的社会危机、卖国无良教授专家社会精英绑架了政府、迫使政府社会个人注入巨额资金、抬高了学费和国家投入、大量采购教学科研仪器造成了设备空闲、完好率低、维修费用高、仪器设备淘汰极快、使用率低下、社会成本教学成本居高不下、教师取了高额的报酬、大量进口大型精密仪器试剂、无收益地消耗了大量的社会资源，并且形成了声势越来越浩大的恶性循环，其实质，就是敌对国家通过在中国的代理人—汉奸不法知识分子制造的类似星球大战对社会在冠冕堂皇光环下的腐蚀和破坏，危害国家安全！！！更高明的黑招数是国外敌对势力的代理人假惺惺地诱导我们将国力投入争取诺贝尔奖的空中楼阁，做那些荒诞不经的课题，还诱你就差那么一点点，再进口国外最先进的分析仪器设备、到发达国家那些顶级大学培训、入学，就能实现你们梦寐以求的最高境界。这是卖国贼制造的一场阴谋，妄想迷惑、破坏国家的乌托邦幻想；是挖掘黑洞和陷阱，是巨额消耗国力、通过各校重奖发表三大检索论文的知识分子来绑架zhengfu的蛊惑人心的宣传伎俩。 这就是毕业生找工作难、企业产品在国际上的竞争力差、只能做系统集成、在基础工业能力没有实质提高，依然落后于发达国家数十年、甚至连30年前的中国基础水平都不如、社会矛盾剧烈的根本原因。 所以，对于中国有实质性意义的真招、实干，是用中国的资源，从基础制造出具有国际竞争力的产品，而且是优先国民消费。用巨额社会资源、进口设备、进口集成电路砸政绩为目的来引进人才，太危险了！！！要严格整肃！毫不留情！ 因此，中国教育的出路不是泛泛的开放，现在已经太民主自由了，而是从问题俯拾皆是的基础做起，扎实才是根本之道。 张鸣先生说：各种评审的指标体系，如核心期刊论文数量，国际SCI、EI论文数量，国家级课题数量，省部级课题数量，课题经费总量等等，实际上只是具有中国学术特色的自娱自乐。中国所谓的学术核心期刊，其学术品质，原本就是周知的，但是，在各个高校发疯追求论文数量的情况下，有某大学带头发明了硬性规定研究生发表核心期刊论文作为毕业前提条件的方法，人为拉高学校的论文发表数量，其他学校纷纷跟进，使这种本质上违法的行为，成为高校的新惯例。研究生做不出论文，就买，不仅买论文，而且买版面，各个学术期刊，因此出卖版面，蔚然成风，进一步败坏了学术期刊的质量。现在的状况是，跟中国有全世界最多的大学生相匹配，中国也有世界上最大的论文发表量，但科研竞争力却呈逐年下降的趋势，基础工业能力没有实质提高，依然落后于发达国家数十年。核心期刊和论文发表如此，所谓的课题也如此。往往官越大，课题就越多，当然也就越没有时间做（这是假定他们都有学问的前提下），只能让学生做，因此研究生们就成了导师的打工仔，廉价劳动力，这样的课题，能有什么质量，可想而知。从教师的基础水平、道德底线、创新能力、责任心、起码的道义感，从中国自行车与发达国家的自行车的每一个细节的比较就可以清楚区别了， 这样的课题和论文的实质水平你自己就清楚了。学校的教师，在定期的考评面前，必须拿出东西来凑数，否则就会下岗。当然，如果产量高，也有奖励，尤其是在所谓A级B级刊物上发文章，奖金甚为可观。
二选一的话，建议《科学世界》，是科普和知识性的。《科学之谜》的话，看名字似乎内容里都是没有答案的，还是学点东西选择《科学世界》的好。另外还有《发现》（DISCOVERY），《自然》，《科学》。
森林是一种重要的自然资源，与人类的关系极为密切，它对人类的贡献是多种多样的，不仅提供各种木材和经济植物，同时也是许多食物的来源。但是，听说我国的森林资源不断减少，造成了严重的后果。大家可知道，森林的作用很大。 一是涵养水源和保持水土。森林一方面有防止水土流失，达到保持水土的作用；另一方面，有保存雨水的功能，有些人把森林比作“绿色水库”。二是改善我们的生活环境。森林能吸收二氧化碳并放出氧气。森林放出的氧气是我们人类以及动物所需氧气的来源，一公顷林地每天能吸收1000公斤二氧化碳，放出730公斤氧气，这对于保持空气的清新具有重要意义。 三是森林在环境污染防治方面具有重要作用。森林不但能吸收二氧化碳，还能吸收其他有毒有害气体和监测大气污染。工业发展过程中不断排放出大量有害气体，如二氧化硫、氟化氢、氮氧化物等，污染环境。林木能在低浓度范围内吸收各种有害气体，使污染的空气得到净化。此外，有些植物对大气污染具有敏感反应，可用来监测大气污染。森林能减低噪声。城市噪声污染严重，林木能通过其枝叶的微振作用，减弱这种有害的噪声。四是森林是保护野生生物的良好场所。森林是许多野生生物的良好栖息地，宝贵的野生生物资源是离不开森林的，没有森林，它们就无法生存。五是森林能调节气候。森林有巨大的蒸腾作用。平均一棵树在一个夏天要蒸腾2000公升的水。因此林地的空气湿度比无林地高出15~25%，降水量也有增加。森林资源不断减少，不仅使木材和林副产品短缺，加剧了供需矛盾，而且给生态环境带来了严重的不良后果。一些珍稀的动植物减少甚至灭绝，环境质量下降，水土流失，河库淤塞，旱涝、泥石流等灾害加剧。森林的减少也影响了气候，减少了降水量。另一方面，森林保护环境、净化空气、吸毒消尘、杀菌灭病的作用也被削弱或消失。总之，生态环境的恶化已向人们提出了严峻的挑战，如果再不采取果断措施保护森林，发展和扩大森林资源，而是继续任意破坏，人们就会受到更加严厉的惩罚。保护我们不断减少的森林资源吧！
Both forest resources and the environment with its dual biological properties, and has a huge production capacity and become a very important land To Forests not only provide a variety of products that can be materialized, but also to create a beautiful ring Environment, play a strong eco-efficiency, maintain the ecological balance of the earth, constitute the basic human survival and development of S Look at all times, all social progress and development of forest growth and decline, the rise and fall closely related to forestry, forest Forests and forestry is an important symbol of social However, population growth and economic development pressure, so many parts of the forest Lin reduction and If this trend continues, the future more and more specific than today's population today relies less than the Forests, which biodiversity, global climate and life support systems will have a significant impact, severely limiting people Class Therefore, the production function and must be in the forest to find a balance between the protection Forest ecosystems to human Contribution to the class, often used in ecological research, "ecological, social and economic benefits" to However, Because of its complexity and uncertainty of how the valuation of these benefits, has been plagued ecologists and economists Important Can you give forest ecosystems for scientific contribution to mankind's valuation, will have a direct impact on policy at all levels Government decision-making Let ecosystem services from the perspective of the contribution of forests to human Ecosystem functioning and ecosystem services Earth's ecosystem is human survival and development of material base, ecosystem services and the health of these services generated State system itself on the Earth's life support system functions is essential to They directly or indirectly, to improve the human Class benefits, and therefore reflects the total economic value of the part of the Because ecosystem services can not be fully in the market The reflected, or fully productive capital with economic services and compared it in the formulation of policies, they often do not Have seriously enough, will eventually endanger the sustainable development of Based on this understanding, some scholars under the public On the original published studies and some calculations to estimate the 17 communities in 16 categories of ecosystem services, the economic value of existing Value, and thus calculate the value of the entire biosphere For the entire biosphere, the value of its annual Between 16-54 trillion dollars, the average annual value of 33 trillion Because there are some uncertainties, this estimate Is a minimum In contrast, global GDP each year is approximately 18 Life left Support system of services, all economic activities on the planet will cease to In this sense, the planet's ecosystems The total value of the service role of the economy is CONST ANZA and other forest ecosystem services (climate regulation, disturbance regulation, water supply, water regulation, erosion control System, to soil development, nutrient cycling, waste treatment; biological control, food production, raw materials, genetic resources, entertainment Music, culture 14) pricing that provides services to the global forest each year the total value of about 7 trillion US dollars; per hectare About $ 969 (which provides raw materials and food production were $ 138 and $ 43, both of 68% Scholars in China (1999) calculated the 38 major national forest ecosystem services worth about 11,740,100,000 US Yuan / year, of which eco-efficiency value of approximately $ 9,339,000,000 / year, 55% of total value, social value (Here refers to its cultural value) of about 2 billion US dollars / year, 17% of total value, while the economic value of forests around their 38 billion / year, the total value of 28% Shows the maximum value of the forest ecosystem is reflected in the eco-efficiency Benefits, and its value is 92 times the economic Scholars in China (1999) Benefits of Forest results show that the total effective value of forests in Heilongjiang 49,868,700,000 yuan, accounting for the province (1999-1992) average annual output value of 2 billion yuan of 7% Total benefit in the forest , The tangible products (economic) and intangible benefits of the value of products (public) benefit ratio of 1:83 Usually manifested forest forest ecosystem services "intangible product", as opposed to forest resources and other "tangible products Products "is often easily However, these products have been invisible to mention the environmental quality of human life Contribution to the high silence, the survival of human development at all times with the solidarity of forest ecosystem Special Is a huge increase as the world's population, resource crises, environmental degradation, as people on the pursuit of sustainable human development and thirsty Wang, the ecological services of forest ecosystem function is relatively much more important will be reborn as the Inherent fragility of our natural environment, and long-term destruction of forests, leading to the main terrestrial ecosystems as The forest area of less than body, the current forest coverage rate is only 92%, and the uneven distribution; cause of ecological environment has Degradation, soil erosion and natural disasters, serious and Forestry is also a result of the development towards a new Road, its functions by the production of timber oriented to ecological environment protection and construction of the main采纳哦
森林像屏障，阻挡着风沙入侵内陆。
Harmony with the environment is that we live in on Earth, who is a natural son, and not only to natural persons as the conqueror, as we all know, there is only one earth and the mountains on Earth, the Plant human cells, if it damaged, destroyed nature organizations, to the eradication of Therefore, the environment must be linked with social ethics, character education and practice acts as an important element of Everyone must fulfil its responsibilities and obligations to protect the 人与环境是和谐相处的，我们生存在地球上，人是自然之子，而不能仅把人看作自然的征服者，大家都知道，人类只有一个地球，地球上的山山水水、动物。植物是人类的细胞，如果我们把它损坏了，破坏了大自然的组织，等于消灭人类。因此，环境要与社会公德联系起来，与实践行为作为人格教育的一项重要内容来抓。每个人都要履行保护环境的责任和义务。
Freshman when the family because of the distress, I had to After a time, I have been in the work-study-state life, at that time, Fan Li has given me is of great Academic pressure and work I am a busy day and enrich the lives of tension, but you did not miss it on the 1st Over the years feel like a head buried in the sand bags in the ostrich, thinking that you can forget all the troubles and miss, But I found that I was wrong, short-term problems can be forgotten, but miss the cut in any case is Whenever Yeshenrenjing time, I always think of you all the little Didi, I still never forget your gentle and thoughtful voice, your beautiful, X Whenever they think of the time, I would think I was a happy day, the fatigue will You have to know in Mangwan day after day, with a sweet sleep, I miss the uh, what are absolute You US-good! I am the last to Hangzhou, in fact, you do not have the necessary but not Xu Xujiu that would like to tell you that they want to tell I say to you, Hangzhou, to Actually Liming and I said I had handed over a Subsequently In fact, I just want to test the response you just, when there are feelings and conditions Qutan » Xiao-Reply tell you for allowing me that you had a If I do not think that Italy, it was a fake, whether you had a boyfriend this is true or false, I would sincerely wishes to you! You really feel I have never had »I Haosha! Even by what » Perhaps this to you, I have the Take care! When I respect all these years is wishful thinking, just Z Always to learn how to grow up, especially Oh, say, is like you for giving me a lesson, oh «I stupid people laugh, perhaps Yes, perhaps feeling really should not see such Benlaishixiang amuse you happy earlier point (this is in fact a friend I found out the idea, hey Y) Really do not respect you, I am Hey Perhaps this outcome is a good thing, thank I stupid people laugh, perhaps it Saddam, but how » The same day
Make breathing in green is fluent, make land between root together! Did you eat today forest, desert will eat you (3) for future generations left blue sky green!4 let forever blue sky, green shade for their Protect a green field, hold up a piece of blue It's everybody's duty to make 5 protect The forest is our 6 forest protection is to protect human 让呼吸在绿色中流畅，让土地在根系间凝聚！ 今天你吃了森林，明天沙漠就会吃了你。 为子孙后代留下蓝天碧水绿地! 4让天空永远湛蓝，让绿荫拥护家园。保护一片绿地，撑起一片蓝天。5保护树木，人人有责。树林是我们的家园。6保护森林就是保护人类自己
然而，一些语言--中性方面的，比如组合风格的，也是包括的。例如，我们的例子可以展示我们在自由语言上的坚定信念KISS代表KeepItSimpleStupid保持单纯的愚蠢原则基于奥卡姆剃刀奥卡姆剃刀(Occam'sRazor,Ockham'sRazor)是由14世纪逻辑学家、圣方济各会修士奥卡姆的威廉(WilliamofOccam)提出的一个原理。奥卡姆(Ockham)在英格兰的萨里郡，那是他出生的地方。奥卡姆的威廉这个原理称为“如无必要，勿增实体”(Entitiesshouldnotbemultipliedunnecessarily)。有时为了显示其权威性，人们也使用它原始的拉丁文形式:PFE事实上，只有前两种形式见于他现存的著作中，而第三种形式则由后来的一位学者撰写。威廉使用这个原理证明了许多结论，包括“通过思辨不能得出上帝存在的结论”。这使他不受罗马教皇的欢迎。许多科学家接受或者(独立的)提出了奥卡姆剃刀原理，例如莱布尼兹的“不可观测事物的同一性原理”和牛顿提出的一个原则:如果某一原因既真又足以解释自然事物的特性，则我们不应当接受比这更多的原因。对于科学家，这一原理最常见的形式是:当你有两个处于竞争地位的理论能得出同样的结论，那么简单的那个更好。在物理学中我们使用奥卡姆剃刀切掉形而上学的概念。爱因斯坦的狭义相对论与洛仑兹的理论就是一个范例。洛仑兹的理论认为在以太中运动的尺收缩、钟变慢。爱因斯坦关于空-时变换的方程与洛仑兹方程在钟慢尺短效应上一致，但是爱因斯坦和庞加莱(法国数学家--译注)认为以太不能根据洛仑兹和麦克斯韦方程组检测到。根据奥卡姆剃刀，以太就被排除了。这一原理也被用来证明量子力学的不确定性。海森堡从光的量子本性和测量效应中推出了不确定原理。史蒂芬·霍金在他的《时间简史》中解释说:我们仍然可以想像，对于一些超自然的生物，存在一组完全地决定事件的定律，它们能够观测宇宙现在的状态而不必干扰它。然而，我们人类对于这样的宇宙模型并没有太大的兴趣。看来，最好是采用称为奥卡姆剃刀的原理，将理论中不能被观测到的所有特征都割除掉。但是“不能确定以太的存在”和“以太的不存在”都不能仅仅根据奥卡姆剃刀推出。它可以区分两个能做出同样结论的理论，但是不能区分其他可能做出不同结论的理论。实验的证据仍然是必需的，并且奥卡姆本人支持经验主义，而不是反对。厄恩斯特·马赫提倡奥卡姆剃刀的一个版本，他称作“经济原理”，表述为:“科学家应该使用最简单的手段达到他们的结论，并排除一切不能被认识到的事物”。把它引入哲学就形成了实证主义哲学，即认为某物存在但无法观测与根本不存在是一码事。马赫影响了爱因斯坦关于时空不是绝对的论述，但是他(马赫)也把实证主义应用到分子的概念。马赫和他的追随者认为分子是形而上学的概念，因为它们太小而不能被直接探测到。这种主张不顾分子论在解释化学反应和热力学上的成功。具有讽刺意味的是，当使用经济原理抛弃了以太和绝对参照系的时候，爱因斯坦几乎同时发表了一篇关于布朗运动的论文，它证实了分子的实在性，这就打击了实证主义的使用。这个故事意味着，我们不能盲目使用奥卡姆剃刀。正如爱因斯坦在他的《自传笔记》中写道:即使是大胆而天才的学者也会因为哲学上的偏见而妨碍他认清事实，这是一个很有趣的例子。人们常常引用奥卡姆剃刀的一个强形式，叙述如下:如果你有两个原理，它们都能解释观测到的事实，那么你应该使用简单的那个，直到发现更多的证据。对于现象最简单的解释往往比较复杂的解释更正确。如果你有两个类似的解决方案，选择最简单的。需要最少假设的解释最有可能是正确的。……或者以这种自我肯定的形式出现:让事情保持简单!注意到这个原理是如何在上述形式中被加强的。严格的说，它们应该被称为吝啬定律，或者称为朴素原则。最开始的时候我们使用奥卡姆剃刀区分能够做出相似结论的理论。现在我们试图选择做出不同结论的理论。这不是奥卡姆剃刀的本意。我们不用检验这些结论吗?显然最终不是这样，除非我们处于理论的早期阶段，并且还没有为实验做好准备。我们只是为理论的发展寻求一种指导。这个原理最早至少能追溯到亚里士多德的“自然界选择最短的道路”。亚里士多德在相信实验和观测并无必要上走得太远。朴素原理是一个启发式的经验规则，但是有些人引用它，仿佛它是一条物理学公理。它不是。它在哲学和粒子物理中使用的很好，但是在宇宙学和心理学中就不是特别好，这些领域中的事务往往比你想象的还要复杂。或许引用莎士比亚的一句话要胜过引用奥卡姆剃刀:“天地之大,赫瑞修,比你所能梦想到的多出更多”(出自《哈姆雷特》，第一幕，第五景--译注)朴素是主观的，宇宙并不总是像我们认为的那样简单。成功的理论往往涉及到对称、美与简单。1939年保罗·狄拉克写道:研究者在把自然法则转变为数学形式的时候，应该为数学的美而努力。对于简单和美的需求往往是等价的，然而当它们发生冲突的时候，后者应该优先。吝啬原理不能取代洞察力、逻辑和科学方法。永远也不能依靠它创造或者维护一个理论。作为正确性的判别方法，只有逻辑上的连贯性和实验的证据才是绝对的。狄拉克的理论很成功，他构造了电子的相对论场方程，并用它预言了正电子。但是他并没有主张物理学仅仅应该基于数学的美。他完全赞同实验检验的必要性。最后的结论来自爱因斯坦，他本身也是一位格言大师。他警告说:“万事万物应该尽量简单，而不是更简单。”
Can provide humans j forest oxygen, is the home of the Forest recently have been destroyed and a serious threat to the survival of wild Calling on the government to enact laws to protect forest; Middle school students action, involved
Protection forest Forest and mankind, mankind intimate partners, is an important part of the global ecological If there is no forest land, most biological extinction, the vast majority of water will flow into the ocean; the oxygen in the atmosphere will reduce, carbon dioxide will increase; the temperature can significantly increased, flood and drought disasters occur Forest, but also can improve the air quality, reduce soil loss, water conservation, reduce the harm of sand blown by wind, reduce noise pollution, beautify the environment and so The forest is precious natural resources, is the human to pillar foundation, and was known as the "lungs of the earth" Why the forest to maintain the ecological balance has an important role? First of all, the nature of all need oxygen to sustain life, and forest is a natural oxygen machine, if the forest and other green plants, is destroyed, the biological survival loses In addition, the forest can regulate the temperature, stop acid rain, dust, noise is attenuated, reducing wind, reduce natural Destruction of forest resources to environmental impact is very serious, loss of ecological Caused by high temperature, air quality is bad, also caused the extinction of wild animals Forest fire is the most dangerous enemy is forest, forestry is the most terrible It will give the forest with devastating Forest fire not only burned forest patches, injury in animals, but also reduce the forest regeneration ability -- a fire, the forest may take decades or even centuries to It can cause the poverty of the soil and water conservation function of forest destruction, even lead to ecological Although now the world science in developing rapidly, however, the human in the uniform of forest fires, but still has not been made a great Forest fire, refers to losing control people, free spreading in woodland, forest, the forest ecosystem and the human bring certain harm and loss of forest fire Forest fire is a sudden, devastating natural disasters, handling more The present situation of the forest, a lot of people do not Please see" -- many tractors, bulldozers rumbled, difficult to count the trees down to the The animals were scared away, plots of land were bulldozed flatIt is human behavior? Love forest! Action bar! Deforestation deforestation forest is human folly, then do not do the harm We must protect the existing forest resources! Beware of forest fires happening again!
Harmony with the environment is that we live in on Earth, who is a natural son, and not only to natural persons as the conqueror, as we all know, there is only one earth and the mountains on Earth, the Plant human cells, if it damaged, destroyed nature organizations, to the eradication of Therefore, the environment must be linked with social ethics, character education and practice acts as an important element of Everyone must fulfil its responsibilities and obligations to protect the 人与环境是和谐相处的，我们生存在地球上，人是自然之子，而不能仅把人看作自然的征服者，大家都知道，人类只有一个地球，地球上的山山水水、动物。植物是人类的细胞，如果我们把它损坏了，破坏了大自然的组织，等于消灭人类。因此，环境要与社会公德联系起来，与实践行为作为人格教育的一项重要内容来抓。每个人都要履行保护环境的责任和义务。
不会吧