SFI is a public research institution of national importance, with a comprehensive research programme focusing on biological, ecological, silvicultural and spatial aspects of forests and forested landscape including forest ecology, forest physiology and genetics, forest protection, ecology of forest fauna and hunting, dendrochronology, dendroecology and dendroclimatology, forest inventory, remote sensing and geographic information systems in forestry etc.

該研究所是國家重點(diǎn)研究機(jī)構(gòu)，主要致力于生物學(xué)韩国无码视频免费观看、生態(tài)學(xué)亚洲欧美中文字幕你懂的、造林學(xué)和森林空間森林覆蓋等領(lǐng)域的研究，其研究范圍涉及森林生態(tài)學(xué)欧美黄色性交网站、森林生理學(xué)和遺傳學(xué)97国产一区二区精品久久呦、森林保護(hù)、森林動(dòng)物生態(tài)學(xué)和狩獵韩国午夜理伦三级2020不卡、樹木年代學(xué)国产美女真人天天爽一级、年輪水文學(xué)、年輪氣候?qū)W亚洲欧美福利一区二区三区、森林資源調(diào)查在线观看无码AV直接进入、森林遙感和地理信息系統(tǒng)等。

Based on the Sino-US Forest Health Cooperation Program, along with review on lots of foreign and domestic literatures, the historical trends of attributes of forest and the concept of health in the modern society are discussed and the concept of forest health is redefined, combining the methods of logic discursion with demonstration analysis, qualitative analysis with quantitative analysis and the ecology with other related science from point view of macro and middle scope aspects.

本研究依托中美森林健康試驗(yàn)示范區(qū)建設(shè)日韩一区二区黄色大片，結(jié)合大量的國內(nèi)外文獻(xiàn)分析98K免费毛片，從中觀和宏觀角度，采用邏輯推理與實(shí)證分析最新成年人黄色网站、定性分析與定量分析无码精品视频在线观看网址、生態(tài)學(xué)和其他學(xué)科相結(jié)合等方法，討論了森林屬性的歷史演變和現(xiàn)代健康觀一区二区色综合，對(duì)森林健康進(jìn)行了重新的定義欧美性交播播，首次嘗試建立了基于中國林情的森林健康基本理論體系，構(gòu)建了森林健康的評(píng)價(jià)方法日韩性交网址，結(jié)合文獻(xiàn)研究對(duì)城市森林欧美性欲网站、農(nóng)田防護(hù)林、馬尾松林AAAA电影网、筍用雷竹林的健康評(píng)價(jià)進(jìn)行了理論驗(yàn)證特黄a又粗又硬又爽视频，并通過江西信豐崇墩溝流域森林健康評(píng)價(jià)進(jìn)行了案例分析。

The established models in which annual precipitation was incorporated as the principal variable indicate a very closely correlation between forest productivity and its corresponding climatic factors,allowing to simulate distribution pattern of actual forest productivity effectiv...

結(jié)果表明：在所構(gòu)建的模型中日本欧美亚洲另类，除海拔高度與凈生產(chǎn)力的相關(guān)模型外99这里只有有精品首页，其它模型均有較高的實(shí)用價(jià)值，模型的擬合曲線變化久久婷婷五月天综合视频，基本反映了中國森林現(xiàn)實(shí)生產(chǎn)力的地理分布格局日韩妓女精品影院在线观看视频网站；中國森林生產(chǎn)力的分布格局主要取決于氣候環(huán)境中的水熱條件，水分條件是決定中國大部分地區(qū)森林生產(chǎn)力水平和地理分布格局的主導(dǎo)因素黄黄的精品视频在线播放；根據(jù)7個(gè)GCMs大氣環(huán)流模型預(yù)測(cè)合成的2030年的氣候情景一级性爱视，研究氣候變化對(duì)中國森林生產(chǎn)力影響的結(jié)果是：氣候變化并沒有改變中國森林第一性生產(chǎn)力的地理分布格局av网站一级在线，即從東南向西北森林生產(chǎn)力遞減趨勢(shì)不變，但不同地域的森林生產(chǎn)力有不同程度的增加欧美的性爱。

On the basis of it, eight suggestions are put forward to evaluate the forestry ecological benefits:(1) it is an inevitable trend to carry out the comprehensive evaluation of the multifold forest ecological benefits;(2) upbuilding the theoretical frame of ecological benefits according to the situation of our country;(3) conducting the subarea case research based on the way of creativity accountment;(4) to set up the locating monitoring system of subarea forestry ecology profits to provide the reliable reference for the research;(5) studying the measuring estimate index more comprehensively to make it more self_contained and self_governed;(6) establishing the standards of the forest ecological benefit evaluation so that the evaluation could provide rational evidence for the establishment of the forestry compensation law and so on;(7) upbuilding economic accountment system of forest ecological benefits;(8) establishing economic compensation system of forest ecological benefits.

并且在此基礎(chǔ)上提出了對(duì)今后森林生態(tài)效益評(píng)價(jià)研究的八點(diǎn)建議：(1)進(jìn)行森林多種生態(tài)效益的綜合評(píng)價(jià)是今后發(fā)展的必然趨勢(shì)欧美老妇人与小伙子性生交；(2)從國情出發(fā)建立我國森林生態(tài)效益評(píng)價(jià)理論框架；(3)在創(chuàng)新核算方法的基礎(chǔ)上開展分區(qū)案例研究欧美生生活视频AAA；(4)建立區(qū)域性森林生態(tài)效益定位監(jiān)測(cè)系統(tǒng)国产美女精品一区在线观看，為研究提供真實(shí)可靠的數(shù)據(jù)資料；(5)更全面地研究生態(tài)效益計(jì)量評(píng)價(jià)指標(biāo)91黄色毛片，使之既具完備性又具獨(dú)立性日韩图片高清中文字幕；(6)建立森林生態(tài)效益評(píng)價(jià)標(biāo)準(zhǔn)，使評(píng)價(jià)結(jié)果能為林業(yè)補(bǔ)償?shù)确烧咧贫ㄌ峁┛茖W(xué)的依據(jù)亚洲小12呦哟网站；(7)建立森林生態(tài)效益經(jīng)濟(jì)核算制度欧美丰满熟妇大aqq；(8)建立森林生態(tài)效益的經(jīng)濟(jì)補(bǔ)償制度。

But on account of excessive cut since 1949, forest resources cutdown sharply, bring a series of problem, for instance, forest productivity decrease, forest habitat fragmentation, agrestic species become extinct at a high speed, environmental quality decline, this paper discussed forest resources change in Heilongjing Province from statistical change feature of forest resources and forest landscape pattern change, using model of GM(1,1) to predict the development trend of forest resources here.

但由于半個(gè)多世紀(jì)的過量采伐官方免费黄色网，致使森林資源銳減国产精品午夜国产小视频，帶來了森林生產(chǎn)力下降、森林生境破碎化h片欧美日韩、鄉(xiāng)土物種加速滅絕和環(huán)境質(zhì)量下降等一系列問題成年网站在线观看播放器视频。本文從森林資源統(tǒng)計(jì)變化特征、森林景觀格局變化兩個(gè)方面對(duì)黑龍江省森林資源的變化進(jìn)行了研究狼友视频在线观看2019高清，并用灰色理論的GM(1网色网站大全cao，1)模型對(duì)該省森林資源未來的發(fā)展進(jìn)行了預(yù)測(cè)。

Based on the concept and the theory of forest park and forest tourism, development advantages of Hanzhong forest park were identified as follows: i through the past several years'development, forest tourism products were getting so abundant gradually that a fundamental scale was formed, with three national forest parks as well as three province parks founded; ii the idea of"tourism stimulation"was determined as the development strategy in the province since forest tourism played an increasingly significant part in the development of Hanzhong economy and society; iii geo-topographically, forest park in Hanzhong not only possess similar precipitous view of Qinling, but also equally splendid scenery of Bashan; iv hydrologically, the landscape had a lasting appeal as that in south China to some extend; v the forest located in the best site of the same latitude; vi with the opening of Xihan expressway, access to Hanzhong was upgraded prominently, which made the park a garden of Xi'an and a resort for many citizens.

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Beijing environmental problems hold severe, and atmospheric and water pollute, soil and water loss, hot island and yawp are leading problems,and take on territorial characteristic. Based on research on relativity between urban forest and these environmental problems, urban forest can effective improve environmental quality in Beijing. And for the aim of improve environmental quality, Beijing forest overlay should attain 35% at least in citywide range, and local-areas being severe environmental problem should be provided with higher forest overlay.5. Through the study on urban forest needed capacity, Beijing's forest coverage is up to par in citywide range, but montanic forest coverage, plain covered with trees and average forest area are lacking, and CO2 and O2 balance is incapable;form the point of heat and balance CO2 and O2 balance,urban forest the city zone and suburb is lack. There is urban forest developmental potential space,but the city zone and suburb area need be compensated form urban forest in circumjacent region.6. On the based of the above results and ecological network system, the author drived whole region into city area, plain and mountain area are needed at the point of planning thoughts of running-through forests and water .

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On the ecosystem health, definitions from utilization and ecosystem views are introduced, the contents and difficulties in assessing it are discussed. On the biodiversity enhancement, the relationship between forest structural complexity and forest biodiversity are discussed, the significance of old growth structure are highlighted, and measures of changing forest structure to promote forest biodiversity are put forward. On the landscape planning in forest management, some patterns, theoretical foundations and models are introduced, especially three conceptual models, i.e., key habitat\|corridors model, nature landscape model, and supportive features model. On the alternative silvicultural systems, reasons for developing alternative silvicultural system by mimic of nature disturbance are discussed, and some advanced techniques and their ecological basis are noted. Finally, on the ecosystem service, its contents and importance of assessment are illustrated.

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Through this study, the sustainable management hierarchical system of forest ecosystem was established, providing the frame of forest sustainable management which given dominance to the basic hydrology ecosystem processing of mountain forest. At the same time, this research brought forward the "double-cycle" mode maintaining the integrality of Tianshan Mountain forest ecosystem. Within all these studies, on one hand, through the research about the regeneration response to different disturbance types, the scientific measures concerning restoration and rebuilding of fragmentized landscape were supplied. On the other hand, t

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This course is an attempt to give the students the basic idea and method of forest management in order to prepare the management plan; Place of forest management in forestry; Content of forest management; Guide principles of forest management; Sustained working; Silvicultural system; Forest yield; Increment; Volume increment; Quality increment; Price increment; Total price increment; Forest maturity; Indicating percent; Productive stage; Physical rotation; Technical rotation; Rotation of maximum volume yield; Highest forest rent rotation; Financial rotation; Cutting cycle of selection system; Normal forest; Normal distribution of age classes; Normal arrangement of stands; Normal increment; Normal growing stock; Normal yield; Improvement of actual forest; Reserve forest; Reserve fund; Planning and plan of forest management; Forest regulation; Area allotment; Volume allotting method; Volume frame work; Area-volume combined frame work; Growing stock; Utilization percent method; Difference method; Pure age-class; Growth method; Control method; Forest subdivision; Forest surveying; Forest survey; Certainty of future policy of forest; Selection of species; Decision of silvicultural system; Decision of rotation; Regulation of future yield; Preparation of management plan; Working the plan; Control and revision of management

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Deforestation：森林開伐

森林開伐(Deforestation)意為人為的將森林地轉(zhuǎn)成耕地、牧場(chǎng)操,com、城市等用地的行為. 一般來說,森林開伐會(huì)造成環(huán)境退化和物種多樣性的減少. 許多國家還在進(jìn)行森林開伐,造成了氣候變遷和地理環(huán)境的改變. 因?yàn)?strong>森林坎伐后沒有足夠的造林,

forest dieback：森林梢枯病; 森林頂梢枯死

forest deterioration 森林破壞; 森林逐漸衰敗 | forest dieback 森林梢枯病; 森林頂梢枯死 | forest ecology 森林生態(tài)學(xué)

forest dieback：森林梢枯病;森林Ding!梢枯死

forest deterioration森林破壞;森林逐漸衰敗 | forest dieback森林梢枯病;森林Ding!梢枯死 | forest ecology森林生態(tài)學(xué)

Forest management：森林經(jīng)營(yíng)學(xué); 森林管理

forest floor 林地地表; 森林地被物 | forest management 森林經(jīng)營(yíng)學(xué); 森林管理 | forest manager 森林管理員; 森林管理人

silvan：森林的/鄉(xiāng)村的/森林之神

silva /森林里的樹木/森林樹論/森林志/ | silvan /森林的/鄉(xiāng)村的/森林之神/ | silvecarvon /林香芹酮/

Sylvan Crown：森林環(huán)冠 森林之冠

Sentinel's Lamellar Legguards 哨兵薄褲 哨兵的綴甲腿甲 | Sylvan Crown 森林環(huán)冠 森林之冠 | Sylvan Shoulders 森林襯肩 森林護(hù)肩

forest use;forest land use;forset function：森林功能;森林機(jī)能;森林利用

森林保護(hù)法案;保安林之劃定 forest protection act | 森林功能;森林機(jī)能;森林利用 forest use;forest land use;forset function | 森林功能分類;森林機(jī)能分類 forest land use class

percent forest cover：森林覆蓋率;森林占有率;森林率

預(yù)測(cè) forecast;prognosis;prediction | 森林覆蓋率;森林占有率;森林率 percent forest cover | 森林結(jié)構(gòu);森林構(gòu)造 forest structure;forest composition

forest type：林型;森林型

森林社會(huì);森林生態(tài)體系 forest community;forest association | 林型;森林型 forest type | 森林荒蕪;森林破壞 forest destruction

forest reserve：森林保留地,森林預(yù)備地

森林研究員 Forest research officer | 森林保留地,森林預(yù)備地 Forest reserve | 森林預(yù)備基金 Forest reserve funds