diversity loss 中文意思是什麼
diversity loss
解釋
多樣性喪失-
Among the social costs is loss of diversity of information and ideas.
社會代價之一是信息和思想喪失了多樣性。 -
Human being, directly or indirectly, has made damage and pollution to cave animals, which leads to the change of flow and cycle of material and energy in cave, malformation of natural compounding and function of cave animals, destruction of harmonious state between cave animals and their environment, obvious ch ange of cave animal ' s diversity, and they are momentous loss to both human being and cave animals
人類直接和間接地對洞穴內外環境進行破壞、污染，致使洞穴的物能循環面貌和性質發生改變，各類型動物的自然組合和功能產生畸形，打破了動物與環境的自然協調關系，動物多樣性發生明顯變化，這對動物和人類環境都造成了重大損失。 -
As the application of rake receivers with multitaps is widely used in cellularcdma systems for exploiting path diversity, the closed - loop power control schemesshould make use of the multitap rake receivers for tracking the power variation dueto path loss, slow fading, and fast fading
同時，本文給出的自適應變步長閉環功率控制演算法利用rake接收機跟蹤通道的變化，與傳統的固定步長閉環功率控制相比獲得了較小的ebi0標準差。 -
The research results mainly show : ( 1 ) the ecological degradation characteristics of wuxi county include : some soil is thin and barren and its water and fertility conservation abilities are poor, gradual degradation of soil results in decrease of vegetation diversity and the vegetation community structure gradually inclines tc simplicity from complexity. the types of soil and water loss in wuxi county mainly involve surface erosion and gully erosion. according to investigation, surface erosion area occupies 80 % or so or erosion area, in which the slope farmlands surface erosion area accounts for about 70 % of farmland erosion area
研究結果主要包括： （ 1 ）巫溪縣生態退化特徵表現：作為生物生長基質的部分土壤薄而貧瘠，保水保肥能力差，部分地區基巖裸露，土壤的不斷退化導致植物種多樣性減少，植物種群結構逐步由復雜趨向簡單化；縣內水土流失的類型主要包括面蝕和溝蝕兩大類，據調查，面蝕面積占侵蝕總面積的80左右，其中坡耕地面蝕佔耕地侵蝕面積的70左右。 -
E. mollis had higher genetic diversity among populations, and the reason may be as follows : ( 1 ) those populations are generally large and are not subject to significant loss of variation through small - population effects such as random genetic drift and inbreeding coupled with selection
相對於26種長壽木本特有種和61種狹窄的地理分佈種來說，翅果油樹種群也具有高的遺傳變異水平。這表明翅果油樹種群不存在遺傳上的退化現象。 -
Therefore, its essence is damaging creature diversity, which leads to the system loss of self - maintenance, self - accommodation ability and system balance stability, finally results in the destroying of water co - system and farther intensification of environmental issues
其本質問題是水生生物多樣性的破壞，由此造成系統喪失自我維持、自我調節的能力與系統平衡的穩定性，並最終導致水生生態系統的破壞和環境問題的進一步加劇。 -
In summary, the exotic species can affect native bird species in four main ways, 1 ) predation of birds or eggs by the exotic mammals ; 2 ) competition for habitats and foods with exotic birds, and loss of genetic diversity by hybridization with the closely - related exotic species ; 3 ) direct and indirect alterations of native habitats and food resources, and predation by the exotic invertebrates ; and 4 ) loss and fragmentation of habitats for native birds through altering species composition and structure of native plant communities by exotic plants
外來生物對鳥類的影響主要表現在以下幾方面： （ 1 ）外來哺乳動物對成鳥、幼鳥或鳥卵的捕食作用； （ 2 ）外來鳥類與本地鳥類競爭棲息地和食物資源，與當地的近緣種雜交而造成基因流失； （ 3 ）外來無脊椎動物改變本地鳥類的棲息環境和食物狀況，甚至直接捕食本地鳥類； （ 4 ）外來植物入侵改變入侵地的植物群落組成和結構，造成本地鳥類的棲息地喪失或破碎化，並通過改變入侵地生態系統的食物鏈結構而對高營養級的鳥類產生影響。 -
Comparing with the system which does not space - time code, space - time coding can obtain transmit diversity and increase channel capacity without frequency bandwidth loss
與空間未編碼系統相比，空時編碼可以在不犧牲帶寬的情況下起到發射分集和提高功率增益的作用。 -
Therefore, the loss of diversity of life on earth is irreversible and these losses have been more rapid over the past 50 years than ever before in human history, scientists say. on the other hand, it is totally unrealistic to think man cannot and must not modify any ecosystems
遊客通常是從沙巴首府哥打京那巴魯的國際機場飛到東岸的斗湖tawau ，由斗湖乘兩小時車到仙本那，再從那裡乘船到目的地。 -
Abstract : biological invasions are a continuous feature of a non - equilibrium world, ever more so as a result of accidental and deliberate introductions by mankind. while many of these introductions are apparently harmless, others have significant consequences for organisms native to the invaded range, and entire communities may be affected. here we provide a survey of common models of range expansion, and outline the consequences these models have for patterns in genetic diversity and population structure. we describe how patterns of genetic diversity at a range of markers can be used to infer invasion routes, and to reveal the roles of selection and drift in shaping population genetic patterns that accompany range expansion. we summarise a growing range of population genetic techniques that allow large changes in population size ( bottlenecks and population expansions ) to be inferred over a range of timescales. finally, we illustrate some of the approaches described using data for a suite of invasions by oak gallwasps ( hymenoptera, cynipidae, cynipini ) in europe. we show that over timescales ranging from 500 10000 years, allele frequency data for polymorphic allozymes reveal ( a ) a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and ( b ) that populations in the invaded range are more subdivided genetically than those in the native range of each species. this spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants
文摘:生物入侵是不均衡世界的一個永恆話題，尤其是當人類有意或無意地引入物種后.很多引入顯然是無害的，但另外一些則有著嚴重的後果，會給入侵地的生物以至於整個生物群落造成影響.本文總結了分佈區擴張的常見模式，概述了它們對遺傳多樣性和種群結構式樣所造成的影響.描述了如何根據以一批遺傳標記所得到的遺傳多樣性式樣來推斷入侵途徑，來揭示伴隨擴張選擇和漂變在形成種群遺傳樣式中的作用.本文對日益增多的群體遺傳學方法進行了總結，這些技術可以用來在不同的時間尺度上推斷種群規模所發生的巨大變化（瓶頸效應及種群擴張） .最後，我們以歐洲櫟癭蜂（膜翅目，癭蜂科，癭蜂族）一系列入侵的數據為例對一些方法進行了說明.從500 10000年的時間尺度上，多態的等位酶位點上等位基因頻率的數據表明: 1 ）遺傳多樣性沿入侵路線呈不斷下降的趨勢，支持了冰河期避難所作為遺傳多樣性中心的作用; 2 ）入侵地區的種群與該物種原產地的種群相比，遺傳上的分化更為強烈.這種種群結構在空間上的變異可能是被櫟癭蜂開發的資源尤其是櫟樹寄主在斑塊上出現變異的反映 -
Through the study of the adenese and the natural biotic reserve in sichuan province, this paper argues that with the development of tourism in this region, the subsistence mode of the local community has changed and the bio - diversity in the nature reserve has been threatened, and that the local community is suffering the dissection between themselves and their homeland as well as their ideological and cultural loss while gaining some economic returns
摘要通過對四川省亞丁人與生物圈自然保護區的研究，認為伴隨著旅遊進入后當地社區生計活動體系的改變，保護區內的生物多樣性受到了威脅，社區在得到經濟回報的同時，也在承受著人地關系的裂變及精神文化的失落。 -
A change in functional properties of the nmda receptors has been invoked as a potential mechanism contributing to the loss of synaptic plasticity during brain maturation. from this, it is important to well understand the structural and functional diversity of nmda receptors in relation to nmda receptor subunit composition and spatial distribution at excitatory synaptic sites during development
近幾年來，在哺乳動物中樞神經系統中，對離子型谷氨酸受體如何定位到興浙江大學醫學院碩士論文nrzb亞單位的c末端胞內區影響n協da受體裝配、運鈞以及表面表達的分子機制奮性突觸的研究有了長足的發展。 -
The excess utilization for human on land result in a series of evil consequence, for example, the increase of soil and water loss, the degradation of eco - environment, the decrease of bio - diversity severely and the decline of land productivity
目前，人類對自然的過度利用導致水土流失加劇、生態環境退化、生物多樣性劇減、土地生產力下降等一系列惡果；同時，環境退化已成為經濟發展的制約因素。 -
It is shown that there are different degree defects in a few definitions in the theories field. in overview of the general requests for giving a definition and the character of the offense of insurance fraud, the writer views that the offense of insurance fraud refers to the act of policy holder, the insured and beneficiary in the insurance contract relation violating the regulations of insurance law to illegally occupy as its purpose, adopt deliberately falsifying the subject matter of the insurance ; or cooking up the cause of an insured accident or overstating the extent of loss ; or inventing stories an insured accident that does not occur ; or deliberately causing the occurrence an insured accident that leads to property ; or deliberately making insurance accidents to swindle large sums of insurance. it has the characteristics as follows : their being subjectively in the diversity of the criminals, the combination of intelligence and cruelty of the criminals, simpler in criminal suspect ; their being objectively in deceptive, crime means " profession to turn, the crime activity concealment very strong, be involved amount of money huge, usually living with other crime companions, the severity of the consequences of the crime, higher black number of crime, and having a thing
筆者認為:保險詐騙罪的犯罪客體不屬于本罪的構成要件，保險詐騙罪的成立僅須具備犯罪主體要件、犯罪主觀要件和犯罪客觀要件三個要件即可;鑒于保險詐騙罪的預備形態在現實中的危害性不大，本文僅就保險詐騙罪的未遂形態和中止形態進行了探討;著重探討了保險詐騙罪共犯中的身份問題，對保險詐騙罪的教唆犯和幫助犯的構成特徵及刑事責任進行了探討;逐一對保險詐騙罪的實質一罪（法規競合與想像競合）和處罰一罪（牽連犯與吸收犯）進行了分析;同時，從犯罪數額和主觀目的上討論了保險詐騙罪的成罪條件，將保險詐騙罪與普通詐騙罪和合同詐騙罪進行了區分;最後，在對保險詐騙罪立法沿革和立法模式分析的基礎上，從保險詐騙罪的主體、主觀方面、客觀方面以及立法技術等幾個方面對保險詐騙罪的缺陷及其完善提出了自己的看法。 -
The landscape diversity index, dominance index, patch average area and patchiness have changed respectively from 1. 72 to 1. 886, 0. 139 to 0. 359, 3. 220 to 3. 103 and from 27. 361 to 26. 878 in different time from 1986 to 2000, which shows that the degree of landscape fragmentation has increased. such increase reflects severe interference of humankind. the result also shows that the spatial pattern of urban landscape has many problems such as unreasonable distribution, single configuration, reduced connectedness, increased fragmentation, decreased types of natural landscape and increased loss of soil and water
將1986年的指數與2000年的指數進行比較發現，景觀的多樣性指數和優勢度指數都增加了，分別由1 . 72增加到1 . 886和由0 . 193增加到0 . 359 ；而平均斑塊面積和景觀鑲嵌度指數都減小了，分別由3 . 22減到3 . 103和27 . 361減為26 . 878 。 -
The disaster of drought and waterlog is severely and frequently, the water and soil loss and rock desertification is increasing, the subsidence is happened at some ground, the bio - diversity decrease, the vegetation and soil evolve conversely, the productivity declines, the people lives in difficulty, and the most phenomenon and types of ecological problem are concentrated in karst area. to strengthen studies on karst ecological characteristics and degradation types can provide gist for ecological rehabilitation and reconstruction in karst area, but also can provide means for reference for other ecology area
嚴重而頻繁旱澇災害、水土流失、石漠化現象加劇、地面塌陷、生物多樣性喪失、植被與土壤出現逆向演替、生產力水平降低、人居生活困難等，集中了全球生態問題的主要表現和主要類型；因此，加強對巖溶區生態特徵和退化類型的研究，不但能為巖溶區生態的恢復和重建提供依據，也為其它生態區的研究提供方法借鑒。 -
The increasing pace of diversity loss thus imperils the " ecosystems services " that many human populations depend on for survival, the study says
研究表明，生物多樣性喪失的步驟的持續加快危及許多人類賴以生存的生態系統 -
The project, will destroy an important habitat for a wide diversity of species and is a tragedy for conservation. it will be a sad loss to future generations
是項計劃將摧毀多種野生生物的重要棲息地，實在是一場生態大災難，對下一代而言更是可悲的損失。 -
Impacts of the project on vegetation, soil, and patterns of land use will influence the regional ecosystem. large area of cultivated lands, forests, shrubs, and other natural communities will be submerged when the project is built, which will inevitably result in loss of species diversity of plants and animals and their habitats. furthermore, climate may be changing because making of large area of water due to building of the dam
工程會對區域生態系統產生影響，其表現形式是通過對植被、土壤和土地利用格局的影響，影響區域自然生態體系的生態完整性；還會造成部分森林植被的淹沒、野生動植物多樣性及其生境的喪失、以及大面積水域形成后可能對當地一定區域內的氣候產生影響。 -
In this part, the two anterior chapters mainly discuss the various basic theories used by the designing for the propagation paths of the electric wave. the theories include the computation methods for the fade and the loss of various propagation paths and obstructions, the engineering estimation methods of the flat fading and frequency selected fading, the designing methods of space diversity and frequency diversity, etc. at the same time, the special designing method of the sea - across path is discussed in detail
本文首先闡述了微波中繼通信工程設計中的相關知識，其中前兩章主要論述了線路設計中所用到的種種理論基礎知識，包括對于各種路徑情況、障礙情況的衰落與損耗的不同計算方法，平衰落與選擇性衰落中斷率的估算方法，天線分集和頻率分集技術的理論知識和設計方法等等。
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