森林結構 的英文怎麼說
中文拼音 [sēnlīnjiēgòu]
森林結構
英文
constitution- 森 : 形容詞1. (樹木多) full of trees2. [書面語] (繁密; 眾多) multitudinous; in multitudes 3. (陰暗) dark; gloomy
- 林 : 名詞1 (成片的樹木或竹子) forest; woods; grove 2 (聚集在一起的同類的人或事物) circles; group 3...
- 結 : 結動詞(長出果實或種子) bear (fruit); form (seed)
- 構 : Ⅰ動詞1 (構造; 組合) construct; form; compose 2 (結成) fabricate; make up 3 (建造; 架屋) bui...
- 森林 : forest; timber; sylva; silva; eng-forest; boscage; bush
- 結構 : 1 (各組成部分的搭配形式) structure; composition; construction; formation; constitution; fabric;...
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They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem
本研究以重慶市的南川金佛山(自然保護區) 、黔江武陵山(國家重點退耕還林示範縣,森林覆蓋率50以上)和北碚中梁山(遭人為破壞嚴重)典型巖溶區為對象,選擇了幾種重要的利用方式,包括林地、果園、耕地、棄耕地和灌草坡,採用野外巖溶生態調查和室內試驗測量分析相結合的方法,以不同土地利用方式巖溶土壤肥力為重點,對不同土地利用方式土壤肥力特徵進行量化分析,找出巖溶土壤肥力差異的主要方面及其根本原因,論文主要從土壤剖面物理退化指標(有效土層厚度、有機質層厚度、質地、團聚體、水分含量等) ,化學肥力退化指標(有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等) ,樣地土壤微生物指標(細菌、真菌、放線菌數量及總量)以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究,為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。Klingelnberg cyclo - palloid spiral bevel gear has construction cramped, excellent transmission quality, low noise and loaded vehavior, it ’ s the main form of gear drives in the bevel gear ’ s technology field. it ’ s cyclo - palloid system, two - part cutter head and high power gears ( hpg ), has certain technology particular than gleason spiral bevel gear. systemic analysing the manufacture principle and meshing principle of klingelnberg cyclo - palloid spiral bevel gear, for accomplishing design theory and analysis method, for enhancement manufacture precision and loaded behavior, for promotion and applied in engineering field, have important theory value and actuality meaning. main work of the paper is tooth form emulation and tooth contact analyse of klingelnberg cyclo - palloid spiral bevel gear
克林貝格( klingelnberg )延伸外擺線齒錐齒輪結構緊湊、傳動性能優良、噪聲小、承載能力高,是錐齒輪技術發展的主要齒制,其連續切削法,雙層刀盤技術和硬齒面刮削法( hpg )相對于格利森制齒輪有一定的技術特點。系統的分析這種齒輪的加工原理和嚙合機理,對完善其設計理論和分析方法,提高加工精度和承載能力,在工程中推廣應用具有重要的理論價值和實際意義。Every fragmental evergreen broadleaved forest is divided three sublayer, however, their structure of layers are not dear, some fragmentations with less areas, are not integral, such as yuanxiao peak. there are less plants in the first sublayer
各片斷森林總的來說也分三個亞層,但層次結構不明顯;有些面積較小的片斷,層次結構不完整,如猿哮峰,第一亞層的植物較少。2 with the correlative analysis between the landuse structure and economic development, the main problems of landuse in youyang county are summarized as follows : ( l ) a large proportion of farmland are leanness, so the land quantity is bad ; ( 2 ) the forest vegetation is broken seriously, and the soil erosion is severe and the eco - environment is depravating ; ( 3 ) the number of land for water conservancy facilities is small ; ( 4 ) the proportion of town and transportation land is not accorded with landuse plan ; ( 5 ) land collocation is inconsequent ; ( 6 ) the land resources is plenty and a lot of land are not used but the land which can be opened up for farming
2通過對酉陽縣土地利用現狀結構與經濟發展的相關分析,總結了酉陽縣土地利用存在的主要問題有以下幾點: ( 1 )中低產田比例大,土地質量差; ( 2 )森林植被破壞嚴重,水土流失嚴重,生態環境惡化; ( 3 )水利設施用地較少; ( 4 )城鎮和交通建設用地欠賬大( 5 )土地資源配置不合理; ( 6 )土地資源總量豐富,未利用地面積大,耕地后備資源不足。In this study, the model emphasizes particularly on time series of geological entity and at the same time it realizes the integration of the spatial model and the attributive model by integrating complicated spatial and attributive character of forest resources. program is realized by matlab. the ann toolbox of matlab established many tool functions based on ann theory
本項研究中,基於gis的神經網路預測模型主要側重的是地理實體數量時間結構序列,模型結合森林資源復雜的空間和屬性特徵,不僅使用了gis關系數據庫中的屬性時間序列值,同時也使用了一定的空間模型,實現了空間模型與屬性模型的有效結z 、口0在程序的實現上採用m八tlab開發環境,其中的神經網路工具箱以人工神經網路理論為基礎,構造了網路分析和設計的許多工具函數。The research object of this paper is the broad - leaved wood of red pine in north slope of changbai mountain. by analyzing the composition, construction, biodiversity and season diversity of forest community, we probed the rule of the forest community changing with the season and the ecological effect of forest insect community affected by forest plant community, appraised firstly regulating ability of forest ecosystem on forest pest and estimated finally effect of forest insect on ecosystem health
本文研究對象為長白山北坡紅松闊葉林帶,通過對森林群落的組成、結構、生物多樣性及其季節變化,探索了森林群落生物多樣性隨季節變化規律,森林昆蟲群落在森林植物群落的影響下的生態效應,對森林生態系統對森林害蟲控制力作初步評價,最後對森林昆蟲對生態系統健康影響作出評價。The following contents were mainly studied : ( 1 ) aspect, structure as well as characteristic of species composition between fragmental evergreen broadleaved forests and continuous evergreen broadleaved forest ; ( 2 ) species diversity, species abundance and species evenness between fragmental evergreen broadleaved forests and contin. us evergreen broadleaved forest ; ( 3 ) plant floristic compositions at family and genus levels between fragmental evergreen broadleaved forests and continuous evergreen broadleaved forest ; ( 4 ) life form between fragmental evergreen broadleaved forests and continuous evergreen broadleaved forest ; ( 5 ) microclimate factor ( sun radiation, temperature, wind velocity, humidity ) in different level pattern ( open, edge and interior ) between fragmental evergreen broadleaved forests and continuous evergreen broadleaved forest ; ( 6 ) the relations between environment and soil factors as well as species diversity of forest community between fragmental evergreen broadleaved forests and continuous evergreen broadleaved forest
主要研究以下內容: ( 1 )片斷和連續常綠闊葉林的外貌、結構和物種組成特徵; ( 2 )片斷和連續常綠闊葉林的物種多樣性、豐富度和均勻性; ( 3 )片斷和連續常綠闊葉林的科( ? )屬水平的植物區系成分; ( 4 )片斷和連續常綠闊葉林生活型組成; ( 5 )在不同的水平梯度格局上(林外、林緣和林內) ,片斷和連續常綠闊葉林的小氣候要素(光照、溫度、風速、濕度等) ; ( 6 )片斷和連續常綠闊葉林的環境和土壤因子,與群落的物種多樣性之間的關系。實驗結果表明: ( 1 )各片斷森林的外貌特點基本上和連續森林一致。The natural recovery of the forest fire vestige, afforestation and its effect
森林火災跡地自然恢復與人工林林分結構及效應研究Stable solution of nonlinear age - structured forest evolution system
非線性林齡結構森林系統的穩定解In 0 - 200cm light dried layer was formed and can be recovered partly after rainfall, but beneath 200cm the serious perpetual dried layer has lower water content and larger thickness and is very difficult to be recovered in short period because of the special hydrological characteristics in the loess plateau where infiltration depth is about 200cm and could not percolate into deeper layer. ( 4 ) the landscape ecology in fuxian county shows that the two kinds of forest community have not declined
( 4 )富縣天然山楊林和天然遼東櫟林的景觀生態特徵表明,兩類森林群落沒有出現衰退的跡象,這說明森林群落合理的內部結構不會造成林地土壤水分的嚴重虧缺,其自然氣候條件可以滿足森林群落生存、發展的需要。Nut structured gray forest soil
核狀結構灰色森林土So we could connect composition and diversification of forest plant community with ecosystem function of biodiversity ? ontrolling on forest insect
這就把森林植物群落的組成、結構的多樣化與生物多樣性的生態系統功能? ?對森林害蟲控制力有機地聯系起來了。On the other hand, the research of " forests and water " is from the aspects of the eco - hydrological models of forest ecosystem from, the viewpoint of forest ecosystem and combining with the research on forest structure, function, productivity, energy and material circulation, to explore the laws and internal relation of various forest hydrological phenomenon is the basic topic of research
另一方面在祁連山水源林生態系統長期定位研究的基礎上,以祁連山青海雲杉為代表運用森林生態學、森林水文學、生態經濟學、生態水文學等學科理論,通過建立單一因子的水文環境因子模型研究森林水文效應;從生態系統觀點出發,結合森林的結構和功能以及生產力和系統能量及物質循環的研究,揭示各種森林水文現象發生和發展的規律及其內在聯系。Meanwhile, most aspects about this perspective are concerned, which include quantification of the soil water background of the plateau area, the regional spatial variation of soil water background and variation along the slope, mosaic structure and seasonal changes etc. the results show that : ( 1 ) for the fundamental circumstance for vegetation development is the original debilitated slope, so the perspective of soil water background specially for the loess plateau refers to the soil water conditions on the original slope. ( 2 ) the value of soil water background appears to be a descending trend from south to north based on the difference of vegetation zones. in the forest zone, soil moisture contents beneath 3m depth from the soil surface are more than 12 % usually ; in the forest - pasture zone, the values of soil moisture content beneath 4m depth underground are more than 6 % and stable, and tend to be ascending while the depth increases ; but the values in the dry pasture zone is lingering between 4 % to 6 % from the surface layer to sub - layers
發展了「土壤水分背景」的概念,並以之為基礎對其各個方面進行了研究,使之形成一個相對獨立和完整的體系,主要包括黃土高原土壤水分的背景值、土壤水分背景的區域分異、坡面分異、鑲嵌結構及其季節分異等: ( 1 )由於植被生長發展、演替的基礎階段是天然草被群落,故認為黃土高原的土壤水分背景在概念上是特指該區天然草被群落下的土壤水分狀況; ( 2 )黃土高原的土壤水分背景值,根據植被地帶的不同表現出自南向北逐漸降低的規律:森林地帶3米以下土層水分背景值普遍穩定地高於12 ,森林草原地帶4米以下土層水分背景值穩定大於6 ,且均隨土層的加深水分含量逐漸增加,而草原帶的土壤水分背景值自土表至底土層一直在4 6之間徘徊。Soil and water conservation forest, which has special characteristics in distribution, layout, variety structure, management and soil conservation role, is different from general forest
水土保持林不同於一般意義上的森林,其布局、配置、樹種結構、經營及其發揮的水土保持能都具有本身的特殊性。Based on investigation of natural forest vegetation in chaoguanxigou watershed of rocky mountain area of north of china, the composition of species, structure of dbh of trees and species diversity of trees and shrubs in the course of forest succession are researched
摘要基於華北土石山區潮關西溝流域天然森林植被調查的基礎上,對森林植被群落演替中群落樹種組成、胸徑結構和生物多樣性變化進行了研究。These effective measures include : ( 1 ) to increase investment of forest tending by a reasonable support policy in forestry ; ( 2 ) to expand forest area and improve forest quality by the scientific methods of forest tending ; ( 3 ) to develop and exploit forest resource by the modern forest engineering and technology ; ( 4 ) to raise the capacity and quantity of economy output of forest resource by the rational structure of industry and the effective scientific and technological content in forest products ; ( 5 ) to increase residents income from non - wood forest products in forest region, etc
可通過制定合理的林業扶持政策、增大森林培育投入、採用科學的森林培育方法擴大森林的面積、提高森林的質量、運用現代森林工程技術科學地開發和利用森林、合理地調整林區的產業結構、提高林產品加工的科技含量、提高森林的經濟產出能力和經濟產出量、增大林區居民的非林業收入等措施來有效地提高林區人口承載的能力。It is a reconstruction of forestry industrial organizations. based on forest resource and ecological environmental industry, it cent red around the realization of comprehensive results. it is a industrial system of forestry with reasonable constructor and a lot of long enough industrial chains by producing in accordance with zone, type and common management
林業產業化是對林業經營方式的根本變革,是對林業產業組織的重構,它是以森林資源和生態環境產業為基礎,以綜合效益發揮為核心,通過分區、分類生產,協同經營,所形成的結構合理、多條足夠長的產業鏈有機構成的林業產業體系。Urban forest structure of hefei city
合肥城市森林結構分析研究Forest ecosystem management takes forests as a com plex ecosystem. in the process of managing and utilizing forest resources, the eco system should be maintained in a healthy and integrated state, and its function be kept for a long time in good condition. for this purpose, the paper puts forward a basic unit - dividing method for forest ecosystem management, using subcompartm ent dividing combined with forest type dividing. it also discusses the relations of forest structure with ecosystem productivity, productive potentiality and biod iversity under forest ecosystem management
森林生態系統經營是將森林作為一個復雜的生態系統來經營,在對森林資源的經營利用過程中,應維持森林生態系統的健康與完整,並長期保持系統的功能良好.提出將小班區劃與林型劃分相結合的方法來劃分森林生態系統經營的最基本單位,並對森林生態系統經營中森林結構與系統生產力、生產潛力、生物多樣性等的關系問題進行了探討分享友人