食性層次 的英文怎麼說
中文拼音 [shíxìngcéngcì]
食性層次
英文
trophic level-
The theoretical analysis shows that any human activities, responsible for the changes of rock, air, water, soil and biology inside or outside the caves, will influence inevitably cave animals in terms of such levels as molecule, cell organelle, cell, tissue, organ, system, individual, population, society and ecosystem. these effects can be observed on cave animal ' s shape - building, activity, tissue structure, metabolism, space - time distribution, biothythm, structure of population and society, food chain, bio - relation, diversity of population and society, and function of the above - mentioned levels
理論分析表明，凡是能夠引起地表和洞穴巖石、空氣、水、土壤、生物等變化的一切人類活動都不可避免地使洞穴動物在分子、細胞器、細胞、組織、器官、系統、個體、種群、群落和生態系統各級層次上產生效應，這些效應具體表現在影響洞穴動物形態建成、行為、組織結構、新陳代謝、時空分佈、生物節律、種群和群落結構、食物鏈結構、生物關系、種群和群落多樣性以及各層次所表現的功能的多少、快慢、強弱等方面。The research result is following : the annual species richness index of studied forest plant community averaged 64. 688, the species diversity index was 2. 982. the proportion of every functional group of forest plant community is : herbaceous layer ( average is 68. 89 % ) > tall tree layer ( average is 15. 266 % ) > shrub layer. ( average is 15. 845 % ) the proportion of every functional group in forest insect communities is remarkably different, and the order of the proportion is herbivorous insect group ( average 0. 729 ) > predatory natural enemy insect group ( average 0. 136 ) > parasitical insect group ( average 0. 135 ). with seasonal change, the proportion of herbivorous and predatory insect group decreased obviously, while that of parasitical insect group increased on average by 147 %
研究結果如下：森林植物群落種的全年物種豐富度指數平均為64 . 688種，多樣性指數為2 . 982森林植物群落內各功能類群物種所佔比重依次為：草本層（平均為68 . 89 ） >喬木層（平均為15 . 266 ）灌木層（平均為15 . 845 ） 。森林昆蟲群落中，全年各功能類群所佔比重以植食性昆蟲類群為最大，平均佔0 . 729 ；捕食性昆蟲類群次之，平均佔0 . 136 ；寄生性天敵類群為最小，平均為0 . 135 。Chapter two makes a systematic review of our country ' s grain circulation system reform. based on chapter two, chapter three analyzes the reasons for the reversion of grain circulation system reform in our country, the author thinks that, from the deep - seated reasons, the imperfectness of the price formation mechanism in grain sector, the lag of the development of the main body in grain market, the unharmony of benefits distribution mechanism between the production and vendition areas, the lag of adjustment mechanism in grain import & export, are all reasons for the reversion of our country ' s grain circulation system reform, and also, all these reasons are closely connected with the lack of efficient agricultural product futures market. chapter four discusses the development course of our country ' s futures market, then analyzes the existing problems in the futures market
其中，第二章對我國糧食流通體制的演變歷程作了一個系統的回顧；第三章在第二章的基礎上，深入分析了我國糧食流通體制改革多次出現反復的原因，作者認為，從深層次的原因來看，主要是由於糧食價格形成機制不健全、糧食市場主體發育滯后、產銷區之間的利益分配機制難以協調以及糧食進出口調節機制的滯后性等原因造成了我國糧食流通體制改革的多次反復，而這些問題的存在歸根到底都與我國缺乏運作有效的農產品期貨市場有很大的關系；第四章對我國農產品期貨市場的發展歷程及其存在的問題進行了探討，通過具體的分析，作者認為，由於當時我國的農產品期貨市場本身還很不成熟與完備，因此，它無法在我國前兩輪糧食流通體制改革中發揮其固有的功能和作用。To prevent unauthorized products, our cosmetics grade mineral oil, food grade mineral oil and medicine grade mineral oil have a only - one - time safe cap. if you have any objections to our mineral oil, you can contact our complete quality management office at our hangzhou refinery
為防止假冒hr牌白油，杭州煉油廠將化妝級白油、食用級白油和藥用級白油在油桶的密封蓋外層加套一次性白色保險蓋，The results of an etiological analysis on predisposing factors of primary hepatocellular carcinoma in 72 in - patients with regard to age, service, educational stratification, personality, distribution of work and leisure, life style, diseased condition and treatment before onset showed that prevalence of primary hepatocellular carcinoma was negatively correlated with increasing age, and that incidences were higher in males than in females ; in office workers with higher educational background than in farmers ; in persons who preferred hot, salty or pungent foods ; in those who abused cigarettes and alcohol ; had more social appointments and lacked sufficient sleep ; in persons who failed to seek timely medical help, and in introverts and bigots after they had contracted hepatitis
通過對72例住院原發性肝癌病例與病因相關因素的調查分析，從年齡、職業、文化層次、性格、勞逸、生活習慣以及發病前病程、治療等綜合資料表明：肝癌流行程度與發病年齡呈反比，發病趨于年輕；男性發病率高於女性；具有一定學歷幹部的發病率大於農民；喜食咸熱或帶刺激性食品對本病恢復不利；患肝炎后，吸煙喝酒多、應酬多、得不到充分休息睡眠、未及時治療和性格內向偏執的病人其肝癌的發病率也偏高。It provides a scientific basis for long - run forecast of nationwide and provincial land use in the future. next, it makes relevancy analysis among cultivated land per capita, food per capita and gdp per capita and determines the relevancy by using grey mathematical method. finally, it undertakes systematical assessment of land use present situation so as to show the regional difference of land use present situation and analyzes the compartment achievement
論文在對省區土地利用差異的理性思考的基礎上，在全國和省區層次進行土地利用的多因素分析，構建了相關的數學模型，為未來時期有關全國和省區土地利用遠景預測提供科學依據；應用灰色數學方法進行人均耕地和人均糧食佔有量與人均gdp之間關聯分析，確定其關聯度；最後進行省區土地利用現狀系統評價，顯化土地利用現狀的區域差異，並對區劃成果進行分析。分享友人