闊葉林木 的英文怎麼說
中文拼音 [kuòyèlīnmù]
闊葉林木
英文
leaf wood-
The results indicated that chinese crocodilian lizards distributed in streams of mountain, and mainly lived in four types of vegetation : broadleaf forest, conifer and broadleaf mix - forest, shrubbery and bamboo forest
鱷蜥主要棲息于闊葉林、針闊混交林、灌木林蔭、竹林4種植被類型的山沖溪溝之中。Soil eoc1 under broad - leaved stand increased gradually with temperature and reached the maximun in july and september. a more flat curve of soil eoc1 was observed in masson pine stand with a peak in july
從0一20厘米至60一80厘米，整個剖面上各層土壤水溶性有機碳占土壤總有機碳比率均是杉木林最高，闊葉林次之，馬尾松林最低。The species richness and diversity index order of coniferous and broad - leaf forest and evergreen broad - leaf forest in different geology plots was as follows : shrub layer > herb layer > tree layer ; in shrub plots, the order was herb layer > shrub layer. in general jsw, jsi and ea index order was herb layer > shrub layer > ree layer. that indicated that the species of tree and shrub in karst area distributing is not even, and the species, which are dominant and adapt to the karst environment are cleaer
不同地區樣地針闊混交林和常綠闊葉林物種豐富度指數、多樣性指數均表現為灌木層草本層喬木層，而在灌叢樣地，物種豐富度和多樣性指數表現為草本層灌木層；整體上，石灰巖地區樣地jsw 、 jsi和ea指數為草本層灌木層喬木層；砂頁巖地區樣地為灌木層草本層喬木層。Especially in the north slope, the broad - leaved wood of red pine, the animal ( insect ), plant ( tall tree, shrub, herb ) and the tree grows plentiful. the living creature is numerous, and the complete vegetative chain of formation is with the food net, provided the proper and living space for the animal ( insect ) and plant ( tall tree, shrub, herb )
長白山作為我國北方溫帶地區最高的山峰，保存了最為典型和完整的森林生態系統，特別是在長白山北坡的紅松闊葉林帶，樹種豐富，生物繁多，形成完整的食物鏈和食物網，對生活于其中的動物（昆蟲） 、植物（喬木、灌木、草本）提供了適宜的生活空間。The results were following : ( l ) generally, all four indices showed the similar variation patterns in species diversity ; ( 2 ) generally speaking, the order of species diversity indices changed with the pattern : shrub layer tree layer herb layers ; ( 3 ) the species diversity of evergreen broadleaved forests was larger than that of warm conifer forests ; ( 4 ) the species diversity of forests in meizi lake area has been affected by human factors
結果表明： （ 1 ）梅子湖森林植被樣地物種多樣性測度的結果，上述4種指標總體上表現出相同的變化趨勢。門）總體看來， 14個樣地的物種多樣性指數在群落不同層次的變化規律為：灌木層喬木層草本層。 （ 3 ）不同植被類型的物種多樣性特徵是：常綠闊葉林暖性針葉林。Niche breadth of four dominate populations at three age groups was studied by the methods of resource utilization ability and ratio. the result shows that : symplocos sectchuanensis is a typical gengeration species whi ch resource utilization ability is strong, and distribution is wide. meanwhile, go rdonia acuminata, castanopsis fargesis and pinus massoniana specialized at some d egree in resource utilizationm, their distribution is limited. especially, the ju venile of pinus massoniana specialized outstandingly. with the devlopment of pinu s massoniana, which is the pioneer population in mt. jinyun, the environment become s unfit to it ' s juvenile. it turns to needle and evergreen broad - leaves mixed fo r est. because the tolerance toward shading of gordonia acuminata is lower than tha t of castanopsis fargesis, gordonia acuminata will be substituted by castanopsis fargesis and other evergreen broad - leaves species are the edificators. the popul ation ' s ability of resource utilization is the inner factor of population distri bution and community succession. the distribution of light and the concentrate of nutrient ( such as n ) is the outer factors of community succession
對縉雲山森林植被的4個優勢種群3個年齡級生態位寬度進行了研究.結果表明，川灰木利用資源的能力最強、分佈廣，為典型的泛化種.大頭茶、栲樹、馬尾松對資源的利用在一定程度上特化，分佈上有一定的局限性.馬尾松的中齡組與幼齡組特化現象十分顯著.縉雲山森林植被的先鋒種馬尾松的發展，導致環境的改變不適于其幼齡個體的生長，群落演替到針闊葉混交林階段，最後發展為以栲樹等為建群種的常綠闊葉林.種群的資源利用能力，是種群分佈與群落演替的內在原因，光因子和營養元素（如n ）是群落演替的主要外部動力It divides the main vegetation of the headwater region of huangpu river into 4 categories based on field survey and observation and methods of factor analysis and systematic cluster analysis and according to the degree of soil and water conservation function : deciduous trees and shrubs are category 1 which shows very strong soil and water conservation function ; tea plantation, grasslands and pine trees are category 2 which has stronger function ; the category 3 is moso bamboos and broadleaved evergreen trees which have stronger permeability and erodibility, but the permeable performance is not outstanding, the capacity of soil moisture storage common and soil and water conservation function moderate and ; the category 4 is uncovered land where the soil and water conservation function is very weak and its permeability, erodibility, erosive resistance and soil moisture storage capacity are all notably smaller than that of the other lands
摘要在野外調查、實測的基礎上，採用因子分析、系統聚類分析的方法，根據土壤層水土保持功能的強弱，將黃浦江源區主要植被類型分為4類：落闊林、灌木林為第一類，表現出很強的水土保持功能；茶園、草地、松林為第二類，土壤水土保持功能較強；毛竹林、常綠闊葉林表現出較強的抗蝕性和抗沖性，但滲透性能並不突出，土壤貯水能力也一般，水土保持功能中等，為第三類；裸露地水土保持性能很差，單獨作為第四類，其滲透性、抗蝕性、抗沖性、土壤水庫容都顯著小於其他各樣地。According to the sample area survey ; there are 120 species of plants belonging to 84 gener 47families in the 25 - year - old chinese fir plantation community which will succeed toward the direction simi - ler to the community type before the felling of evergreen broadleaved forest if it is let to develop naturally or the logging residues are not burnt after the felling of the chinese fir plantation due to the superiority of cas - tanopsis carlesii and schima superba in the aspling layer in it
據樣地調查，該25年生杉木人工林群落的植物有41科84屬120種，群落的外貌特徵以包括藤本在內的高位芽占絕對優勢，葉特徵以革質，單葉，中小型葉為主，由於該群落的幼樹層以米儲和木荷等占優勢，若讓其自然發展或杉木林採伐后不煉山，並排除其它人為干擾，該群落將向與常綠闊葉林採伐前的群落類型相似的方向演替。Effects of selective cutting of different intensities on the tree layer structure and species diversity of evergreen broadleaved forest
擇伐作業對常綠闊葉林喬木層樹種結構及物種多樣性的影響With consideration of the damage to forest soil, production costs, damage to residual stands, the model of optimal selective cutting was set up to find the harvesting policy which would maximize the expected net financial returns and minimize damage to forest soil
以最大凈收益與對林地破壞最小為目標，綜合考慮了採伐作業對林地破壞、林木損傷、生產成本等因素，建立常綠闊葉林最優擇伐模型。The study shows that the early and late seed rains of constructive tree species in evergreen broadleaved forest at chongqing simian mountain had no activity. the bigger the seeds of the species and the earlier or later the seeds of the species matured, the higher the proportion of the seed rain damaged by animals. the quantitative variation of seed rain, active seed rain and seed bank did not take place at the same time. at early time, the number of seed banks of castanopsis fargesii, lithocarpus glabra, quercus myrsinrefolia, castanopsis plasyacantha, cinamomum subavenium. which own more active seed rain increased by geomitric series. the seed banks of castanopsis orthacantha and schima argentea were small, only survived a short time, and did not sprout next year. the quantitative dynamics of seed banks and their increasing or decreasing rates were decided by the proportion damaged by animals, dying speed of seeds and their resistance to pathogens and adverse circumstances, and the state of seed germination
對重慶四面山常綠闊葉林建群種種子雨、種子庫的研究表明，建群種早期和晚期的種子雨無活力;種子偏早或偏晚成熟及大籽粒的樹種，其種子雨被取食的比例大;種子雨、有活力種子雨、種子庫三者的數量變化不一致;有活力種子雨量較大的栲、石櫟、小葉青岡、扁刺栲、香桂等，其種子庫密度在早期以近幾何級數的方式增長，元江栲、銀木荷種子庫小，存在時間短，翌年無一年生萌發苗;種子庫數量動態、消減率動態決定於種子被取食的強度、種子衰老的速度以及種子對病菌、逆境的抗性和種子萌發的整齊性The growth of canopy trees and gap dynamics of the korean - pine forests
長白山紅松闊葉林林冠木競爭生長及林冠空隙動態研究Ecological features, function indicators and social - human impact together constitute the fundermental system of regional ecosystem health assessment. haxi forestry center is located in tianzhu of gansu province. in view of the natural conditions, land use type and forest map, we classify the research area into 15 landscape types
甘肅天祝縣哈溪林區位於祁連山東段，依據哈溪林區的自然條件、土地類型和林相圖，將研究區劃分為苗圃，未成林地，宜林地，農田，牧草地，荒地，青海雲杉林，祁連圓柏，針葉混交林，楊類闊葉林，紅樺、榆、山楊硬闊林，針闊混交林、灌木林、疏林地和闊葉混交林等15種景觀類型。Studies on phenolic content and variation in soils of chinese - fir and broad - leaved stands
杉木林和闊葉林土壤酚含量及其變化的研究Analysis on the species richness and diversity index, community evenness in different plots and layers of evergreen broad - leaved forest in shiyang forest center in wencheng, zhejiang province resulted that species richness and diversity index, community evenness of the second sublayer of tree layer was much greater than that of the first sublayer in the vertical structure of the community
對文成縣石?林場常綠闊葉林的不同樣地、不同層次的物種豐富度、物種多樣性指數和群落均勻度進行了分析，結果表明:在群落垂直結構中，喬木層第2亞層的物種豐富度、物種多樣性指數、群落均勻度顯著大於第1亞層。In this paper, the niche characteristics of the dominant herb species in the subtropical ev - ergreen broad leaved woodland ( 53 species ) have been measured at the natural reserve of wanmu ling, including niche breadth, niche proportional similarity and niche overlap
對萬木林自然保護區常綠闊葉林森林群落的53個主要種群進行生態位測定，包括生態位寬度、生態位相似比例、生態位重疊。Zhenghe county was divided into three forest regions according to the features of its vegetationdistribution and flora. the author suggested that these forest regions should be transformed ， protected anddeveloped for use respectively in the light of their features
根據政和縣的植被分佈、植物區系特點，將其分為西部丘陵杉木豐產林、經濟林區；中部低山常綠闊葉林、毛竹林區；東部中山馬尾松、針闊混交林區等3個區，建議根據3個林區的特點分別進行改造、保護和開發利用。Abstract : characterized by a lower subtropical monsoon evergreen forest as the zonal vegetation, guangdong province has a rich diversity in community structure and forest stratification, as well as abundant groundcover plants species
摘要:廣東地帶性植被為南亞熱帶季風常綠闊葉林，群落結構和層次都很豐富，處于林木下層的地被植物資源也十分豐富。Firstly, the people preferred the economic benefit of forest to the ecological benefit in the past old planned economy system. secondly, the resource of natural evergreen broad - leaved forest is destroyed and increasingly exhausted because of the population increment and the science and technology advancement. thirdly, we suffer from a gre at dread of the frequent natural - calamities and the continual deteriorated environment people began to be aware of the importance of the natural evergreen broad - leaved forest to human race and the protection for it
在我國，生態保護小區的建立有其深刻的歷史背景： （ 1 ）舊的計劃經濟體制偏重於對森林木材採伐加工的利用，甚至盲目地追求森林採伐加工的經濟利潤，忽視了森林的最主要生態功能，造成大面積天然闊葉林遭受破壞； （ 2 ）人口增長引發毀林開荒，科技水平提高引起木業的飛速發展，這些導致天然闊葉林資源日益枯竭； （ 3 ）頻繁自然災害、不斷惡化的環境使人類蒙受巨大經濟、社會損失。In this paper, 4 types of vegetation ( broad - leaved, masson pine, chinese fir and phyllostachy pubescens ), which are widely distributed in subtropical area of southern china, were selected to investigate cotent and spatia - temporal, characteristic of wsoc. two kinds of bamboo { phyllostachy pubescens and phyllostachys praecox ) were used to test the effects of intensive management on soil loc
本文採用野外調研和定位試驗相結合的方法，比較研究了亞熱帶具代表性的常綠闊葉林、馬尾松林、杉木林和毛竹林四種森林類型土壤活性有機碳的含量、空間變異、年動態變化規律及其與土壤其他肥力指標的關系。分享友人