冬性指數 的英文怎麼說
中文拼音 [dōngxìngzhǐshǔ]
冬性指數
英文
wintriness index-
Previous researchers have always determined the sp atial distribution patterns ( sdp ) of castanopsis kawakamii with a sample - dis tance method. however, the distribution patterns may be affected by the quadrat si ze and, in the course of analysis, the density differences among the cluster plots are not considered ; therefore, differences of cluster plot size and the dispersi on degree among individuals of cluster plots can not be known. authers of this pa per have determined the spatial distribution patterns of castanopsis kawakamii population in different habitats by means of non - quadrat distance method and a nalysed the pattern intensity and grain of the sdp. the pattern intensity is defi ned with the relative density differences and the pattern grain can embody the d ispersion degree of the individuals in the plots, and the dispersion degree among the plots. the determined results are as follows. the intensities of the species range in order from strong to week : litsea mollifolia p. kawakamii i. purpure a r. cochinchinensis c. kawakamii c. carlessii d. oldphamii s. superba. the gra ins of the species queue in order from coarse to close : s. superba = litsea mollif olia r. cohinchinensis c. kawakamii = i. purpurea c. carlessii p. racemosam d. oldp hamii. these determined results tally basiclly with the results authers of this paper have got in determining the same plots by means of aggregate index access ing method. in view of this, it is held that the sdp of c. kawakamii is closely related to the habitats and biological features
前人都是採用樣方方法對格氏栲種群數量的空間格局進行測定，而格局分佈有可能受樣方大小的影響，且分析過程中沒有涉及聚塊間密度差的問題，因而無法掌握種群的聚塊大小差別及聚塊內個體間的離散程度.本研究採用無樣方距離法，測定不同生境的格氏栲種群空間格局，分析格氏栲種群格局的強度和紋理.強度以聚塊和間隙的密度差來定義，紋理則是體現聚塊內個體間的離散程度與諸聚塊間的分離程度.測定結果表明，格氏栲種群格局強度從高到低排列次序為：木姜子蚊母樹冬青茜草樹格氏栲米櫧虎皮楠木荷；格局紋理從粗到細的順序是：木荷=木姜子茜草樹格氏栲=冬青米櫧蚊母樹虎皮楠.這一測定結果與作者採用聚集度指標測定相同樣地格氏栲種群空間格局的結果基本相符.因此，格氏栲空間格局類型及分佈與格氏栲生物學特性及生境的關系密切The paper concludes that the changing rate of ndvi of rain forest in tropic is the smallest, the changing curve is smooth, while the changing rate of ndvi of the deciduous broad leaf forest in warm - temperate zone is the largest the change of ndvi is the most conspicuous in winter and spring ( especially in april ) while is not conspicuous in summer and autumn by analyzing the change of ndvi along latitude using the ndvi value of different vegetation types along the same longitude. the vegetation index from warm temperate zone to semitropical zone has obvious transition, while other areas have no distinct change by analyzing the change of ndvi from temperate zone to semitropical zone to tropical zone using ndvi averagejn the same time it is concluded that the sink value in the beginning of the year 1995 is from the influence of the monsoon in east of china by analyzing the ndvi curve of several typical needle leaf forests. the relation between ndvi value and temperature is conspicuous while the relation of precipitation is less or not by analyzing the relation between ndvi and temperature and precipitation finally it can get the conclusion that the change of river area is the smallest, the change of sienna area is the greatest by analyzing two phases of tm data in 1987 and 1997 with rs technic
利用從同一經度的不同森林類型ndvi值分析，沿緯度方向ndvi變化可得出， ndvi在冬春季變化最明顯（尤其是在4月份最大） ，而在夏季和秋季變化不明顯。利用ndvi均值進行分析，從暖溫帶到亞熱帶到熱帶的變化情況發現，從暖溫帶到亞熱帶ndvi指數形成明顯的階躍，而其它區域沒有太大的變化，同時對幾種典型的針葉林曲線分析可知其年初的凹值源自於我國東部季風的影響。利用ndvi數據分析其與月均溫度與降水的相關性得出與溫度相關性較為顯著，而與降水相關性不顯著或無相關性。From the point of view of risk, a index system of risk assessment of winter wheat losses caused by drought was established, including the meanings, token models and estimate methods of risk index of natural water deficiency rate, risk index of yield reduction rate and trending vector coefficient of disaster resistance capability, then on the base of these indices, the comprehensive risk index model of losses caused by drought was established and regionalized. the results indicated : the high risk region included the middle north of shanxi, some of middle of shaanxi and some of hebei in east ; the higher risk region included some of middle of shaanxi, the tangshan region and some of west of hebei ; the moderate risk region included the middle of s
從風險的角度，建立了冬小麥乾旱災損風險評估的指標體系，包括自然水分虧缺率風險指數、減產率風險指數和抗災性能趨勢向量系數的意義、表徵模式和估算技術方法，在此基礎上構建了災損綜合風險模型，並對模型參數區域化，結果表明：冬小麥乾旱災損高風險區在陜西中北部、山西中部的部分地區和河北滄州的部分地區；較高風險區在山西中部的部分地區、河北的唐山地區和西部的部分地區；中風險區在陜西中部、山西南部、河北滄州的大部分地區；低風險區在陜西中南部、河南中北部、北京市、天津市、河北中南部和山東省。The daily change law of air ion is : the density of air ion in morning is the highest, it falls at noon or in the afternoon. while it raises again in the dusk. ( 2 ) in summer, the density of air anion in songgu and diaoqiao scene district is more than 30000 / cm3, while in yungu scene district and bailongtan, renzipu of wenquan scene district it is 10000 / cm3. in beihai it reachs 18000 / cm3, the density is not well - distributed in xihai, yupin and tianhai, it presents a kind of jumping change ; ( 3 ) the air anion density in winter is small than 1000 / cm3 only at yiranting, taoyuan square of wenquan and yupinglou
大氣離子日變化規律是：清晨最高，正午或午後降低，傍晚又比較高； （ 2 ）夏季，松谷景區和釣橋景區的負離子濃度均在30000個cm ~ 3以上，而雲谷景區和溫泉景區的人字瀑和白龍潭測點負離子濃度在10000個cm ~ 3以上；北海景區負離子濃度在18000個cm ~ 3以上，西海、玉屏和天海三景區的負離子濃度分佈不均勻，呈現一種跳躍性變化； （ 3 ）冬季負離子濃度只有溫泉景區的翼然亭、桃園廣場和玉屏樓的負離子濃度小於1000個cm ~ 3 ，其它地方的負離子濃度均大於1000個cm ~ 3 ； （ 4 ）全風景區中以松谷和釣橋景區的負離子含量水平高，而且它們在春季負離子含量也超過8000個cm ~ 3 ，具有治病的功能；溫泉景區的人字瀑和白龍潭測點負離子濃度春季超過16000個cm ~ 3 ； （ 5 ）整個風景區的負離子含量均大於正離子含量，用單極系數q和空氣離子評議系數ci評價，各景區的q 1 ， ci 1 ，高於最佳空氣清潔度的指標。Bootstrapped stepwise logistic regression was used to identify potential predictors of fl among 13 variables of interest [ gender, age, ethanol intake, alanine transaminase, aspartate transaminase, gamma - glutamyl - transferase ( ggt ), body mass index ( bmi ), waist circumference, sum of 4 skinfolds, glucose, insulin, triglycerides, and cholesterol ]
使用靴帶逐步邏輯回歸在13個變量[性別，年齡，酒精攝入量，丙氨酸轉移酶，天冬氨酸轉移酶， -谷氨酞轉移酶（ ggt ） ，體質指數（ bmi ） ，腰圍， 4點皮膚褶總和，血糖，胰島素，甘油三酯，膽固醇]中識別出潛在的預測因子。This paper introduced the experimental results for ground - source water / water heat pump, analyzed the effects of the variety flux on system performance coefficients, which showed that the optimal operation flux is 1000 ( l / h ) and provided the heat exchange rate per unit depth of coil, 45 80 ( w / m ). compared the exchang - heat - curveline in winter with that in summer, through which showed the advantages of gshp in mode of heating and cooling on long - period operation
本文介紹了地源水-水熱泵全年冬夏暖冷聯供的實驗結果以及過渡季地溫的恢復情況，分析了系統流量對熱泵性能參數的影響，獲得了最佳運行流量為1000 （ l / h ） 。並實測得到單位管深換熱率及埋管的有關性能指標。The progress of the building energy conservation of our country is rapid now, but it started late in hot summer and warm winter zone. taking the thermal performance and energy consumption as the targets, with the methods such as calculation, analysis, data comparison in the simulation software, the dissertation incarnates that the design can be totally controled. some better thermal design methods are mentioned to decrease the loads of the air - condition, which lend themselves to achieving the local residential building energy conservation standard
當前我國建築節能工作正在迅速發展，本文以夏熱冬暖地區居住建築熱工性能及其能耗為研究對象，通過模擬軟體進行計算、分析、數據比較等方法，充分體現建築設計過程中的可控性，並對減少空調設計負荷提出一定的熱工設計方法，以有助於達到的該地區居住建築節能指標；為夏熱冬暖地區建築節能工作的開展做部分研究準備工作，同時總結dest - h軟體在測試研究應用方面的一些經驗。分享友人