drought period 中文意思是什麼
drought period
解釋
干時期-
In 1897, the government built a matching water system and three filter beds for the reservoir. during the drought period, private reservoirs helped the government to supply water to hong kong residents, thus easing the problem of water shortage
1897年，政府更為該塘興建一個配水庫及三個濾水池。在天旱期間，私人水塘曾協助政府，提供食水予香港居民，紓緩香港食水短缺的問題。 -
According to the hydrograph, march was the drought period. the surface water flow was vanishing
由年流量之變化，初步可了解3月為枯水期，地表流量近乎消失。 -
The subject is based on the study forward position of water resources management of liaoning province, and use the developed tendency and succeeded experience of world water resources for reference, take theory of sustainable development as guiding ideologue, adopt systematic project, protection of ecosystem and environment and theory of economy forecast engage in composite analyze, dynamic evaluate and forecast analyze, forecast developed tendency of water resources supplement and demand of liaoning province, put forward water resources rational disposition, economize on water, the prevention and control of water pollution and strength water resources protection etc. measures, supply decisional foundation for fight drought, economize on water and water resources optimized disposition, is water resources strategic research forward sustainable development, is a part of water conservancy developed program of liaoning province in the 15 period, and it has important significance to accomplish the sustainable development of economy and environment of liaoning province
本課題立足於遼寧省水資源管理研究前沿，借鑒了國內外水資源發展趨勢和成功經驗，以可持續發展的理論為指導，運用系統工程、生態環境保護理論和經濟預測理論進行綜合分析、動態評價，進而預測遼寧省水資源供需發展態勢，提出了遼寧省水資源合理配置、節約用水、水污染防治和增強水資源保護等措施，為遼寧省抗旱、節水和水資源優化配置提供決策依據。本文是面向可持續發展的遼寧省水資源戰略研究，是「十五」期間遼寧水利發展規劃整體布局的一部分，對實現遼寧省經濟、資源可持續發展具有重要意義。 -
The whole jurassic period santanghu basin was undergone a sedimental cycle : river - lake - river, the environment changed from warm - wet to drought
三塘湖盆地整個侏羅紀經歷了一個由河流?湖泊?河流的沉積旋迴，環境由溫暖潮濕逐漸向半乾旱?乾旱的環境轉變。 -
In ported trials, wu gave the minimum tr of all plants, and its diurnal maximum tr persisted stability the most within the range of soil moisture 20. 4 % - 6. 4 %. ; nx lowered its tr and shrank its high - low lines after had experienced irregular wet - drought hardening period during culturing ; kerqin performed a plasticity as compared to field ; c. lanata also stood the most stability but on the basis of middle - high maximum tr level ; tr by caragana korshinski was high when soil water was abundant, but was lowest for lack of water ( 6. 4 % )
盆栽試驗表明，華北駝絨藜蒸騰最弱，且在土壤含水量20 . 4 6 . 4的范圍內最高蒸騰速率穩定性最強；經脅迫鍛煉寧夏駝絨藜蒸騰降低，變幅減小；科爾沁駝絨藜與大田相比蒸騰可塑性較強；土壤水分變化中，北美駝絨藜蒸騰在中高水平上維持穩定的能力最強；水分良好時檸條蒸騰很強，水分脅迫中蒸騰極大降低。 -
Meteorological disaster ( mainly wind damagae, waterlog disaster and drought damage ) was classified by five categories as slight, not serious, medium, relatively serious and serious by the degree of its influence on guangzhou, and divided into 3 ranges in time : short - term ( 2000 2002 ), medium - term ( 2003 2006 ), and long - term ( 2007 2010 ). through the investigation by 57 experts who had been engaged in disatser research for a long time, with application expert of assessment method ( delphi method ) the results showed that wind damage would have the greatest influence on guangzhou among the meteorological disasters. in the coming 10 years, there would be tropical cyclone influence on guangzhou almost every year, which would bring a certain extent of damage that was 10 15 % more serious than that in normal year. waterlog disaster brings less influence compared them with tropical cyclone in short term, but its influence was close to that of tropical cyclone in mid - term and even surpasses that of tropical cyclone in long - term. waterlog damage in forcasting period will be about 10 % more serious than that in normal year
將氣象災害（主要是風災、澇災和旱災）對廣州市的影響程度分成輕微、偏輕、中等、偏重和嚴重五個級別，在時間上將未來10年分成三個時期：近期（ 2000 2002年） 、中期（ 2003 2006年） 、遠期（ 2007 2010年） ，通過對廣州市57名長期從事災害研究的專家的調查，再運用專家評估法，結果表明：在三種災害中，對廣州市影響最大的是風災，未來10年幾乎每年都有熱帶氣旋影響廣州，造成較大程度的損失，其損失程度約比中等年份偏多10 15 ;澇災對廣州市的影響在近期比臺風小，中期與臺風的影響接近，至遠期的影響超過臺風，整個預測期內比中等年份偏多10左右。 -
Model for water resources pre - allocation during drought period in water deficient urban area
缺水地區枯水期城市水資源預分配管理模型 -
The future characterization and genetic analysis for candidate mutant were carried out and find that some candidate mutant ( such as roi30 doil - 1 doi0311131 ) have good phenotype by drought h2o2 aba - stressed treatment. at the same time we also observe the development of candidate mutant at different growth stages carefully. many modal difference between mutant an d wild type at the same period were found, such as more rosette layering fatty and big in leaves, advancment or delay for the flower period, rosettes living in the main stem, shorten in figure, the amount of seed little, sterilization etc. these physiological and modal changes may reflect with maladjustment in expressions of some gene and confusion on their inner control, . we will futher study concrete and detailed function mechanism
我們對這些擬南芥侯選突變體進行進一步的鑒定和遺傳學分析，發現ro口口、 doil 、 doi口jlll3i等潛在突變株對aba 、過氧化氫及早脅迫有明顯表型，同時對潛在突變體的生長發育進行了詳細的觀察，發現多數潛在突變株與同條件下野生型比出現了許多明顯的形態改變，如:蓮座基葉增多、分層、肥大，花期提前或延遲，主莖生輪座，株型矮化，產籽量少，不育，敗育等，這些生理和形態上的差異很可能反映了它們內部某些基因的表達受到了影響、代謝調控發生了紊亂，具體和詳細的作用機制還需要進一步的研究。 -
The study also reveals the relationship between pasture ' s growth period, yield and their relation to weather factors and the evolvement characters of grassland vegetation under the background of drought climate, and refers to the main factors of the influence on grass - turn - green period as water condition in qinghai lake areas, and the main factors as the quantity of heat in the southern area of qinghai. because of the drought in the " three rivers source area ", the growing season is shortening and the production of the grass is decreasing clearly
揭示了牧草生育期、產量以及群體結構與氣象因子之間的關系和氣候乾旱化影響下草場植被的演變特徵，提出了影響環湖地區牧草返青期的主要因子是水分條件，影響青南地區牧草返青的主要因子是熱量條件， 「三江源」地區由於氣候乾旱化，導致牧草生長季呈縮短趨勢，牧草產量明顯下降。 -
And the influence of water condition to growth and yield of crops were discussed briefly. then based on the meteorological data, yield data, drought and flood data of jiangsu province from 1961 to 2000, the water profit and loss of every ten days in the growing period of crops was calculated on the foundation of the water balance formula in every agriculture climate district. the disaster index of drought and flood was confirmed and calculated
根據江蘇省近40餘年的氣象資料、產量資料和旱澇災害資料，分農業氣候區利用農田水分平衡方程計算了不同作物逐旬水分盈虧量，確定了旱澇災害指數，並用多元積分回歸方法分析了降水對棉花和小麥產量的定量影響，得出作物生長期內逐旬水分敏感指數。 -
C. smyrnioides would allocate more biomass to root for store with growing. the ratio of biomass stored in root of two year old plant was more than one year old, and drought than saturation, the last period of growth than start period
明黨參植株分配較多的生物量到根進行儲備，乾旱條件下較濕潤條件下更大，二年齡較一年齡分配的比例更大，生長末期較初期更多。 -
In recent years, the contradiction of the water shortages between agriculture, ecology and drought fighting are alleviated through the storing and diverting the flood water from nenjiang river and taoerhe river during the flood period ; from which obvious benefit has been obtained
近幾年，吉林省白城市通過引蓄嫩江、洮兒河汛期洪水資源，緩解農業、生態缺水的矛盾，取得了明顯的效益。 -
Results show that the corresponding relations are significant between the feature of drought and flood years in significant abnormal regions of precipitation and changes of the same period three wind fields
指出降水顯著異常區域的旱澇變化與同期三層風場變化有較好的對應關系。全球陸地3 - 5月旱澇的變化和海溫變化之間存在一定聯系。 -
Firstly we maked sure method of isolating arabidopsisis mutant by thermal imagings in many ways on trial, optimize conditions for isolation, and confirm the good period of seedlings and fine density for isolation, select correct isolating pressure ( drought and h2o2 ) that is fit for isolate mutant. secondly we obtain an ml population derived from 0. 4 % ethyl methanesulfonate ( ems ) - mutagenized wild type arabidopsis thaliana
本實驗首先是對利用遠紅外成像技術篩選擬南芥突變體方法的可行性進行多方面的試驗，優化篩選條件、確定篩選所需幼苗的生長時間、種植密度，界定用於篩選所需的脅迫（過氧化氫和乾旱）選擇壓力。 -
Based on global land monthly precipitation dataset prec / l during the period of 1948 - 2001, ncep / ncar reanalyzed monthly mean wind data and global monthly sst grid data edited by british meteorological bureau. the flood / drought and the secular trend variation of precipitation of global, the northern hemisphere ( nh ), the southern hemisphere ( sh ), eurasia, africa, australia, north america, south america and antarctica in december - february ( djf ) are investigated
本文利用1948 - 2001全球陸地月降水資料（ prec l ） ，美國ncep ncar再分析月平均風場資料和高度場資料以及英國氣象局整編的全球逐月海溫格點資料。研究了全球、北、南半球及歐亞、非洲、澳洲、北美、南美和南極大陸6個大尺度區域12 - 2月的降水趨勢變化及旱澇氣候變化。 -
In addition, the pith of root and stem is flourishing for prosperous growth period and declining period, the vascular tissue storing the nutrient and providing the nourishment for the biennial plant in next year from abnormal secondary growth is developing in pith, unusual structure eg. epidermis and vice - epidermis, bubble form cell, short pipe numerators and wreath grid types leaf etc. in each organ of pugionium comutum ( l. ) gaertn. had been formed to adapt to dry environment, so the characteristics on appearance and anatomies in pugionium cornutum ( l ) gaertn. has closely of relation with its anti - drought and its adapting to desert environment
此外，葉片旺盛生長期、衰退期根莖具發達的髓，髓內有異常次生生長形成的維管組織，貯藏養分，為沙芥次年形成二年生植株提供營養，沙芥各器官在解剖結構方面都形成了特化結構如具表皮及副表皮、泡狀細胞、短的導管分子及環柵型葉等以適應乾旱的環境，因此沙芥各器官的形態及解剖特點與其抗旱、適應沙漠環境有密切的關系。 -
It was obvious that the climate and environment had the tendency of drought after the maximum optimum period of holocene
同時，其環境也經歷了由荒漠? ?荒漠草原? ?荒漠的演變過程。 -
Africa was not alone in the global drought. thompson said other records show that civilizations during this period collapsed in india, the middle east and south america
在全世界，並不只有非洲遭受了這樣的一種乾旱枯竭。湯普遜說統計表明，同期的文明在印度、中東和南美洲地區都出現了衰退現象。 -
The drought period comes to an end when the tide covers the habitat
高潮時的潮水愈來愈高淹沒了棲地，代表乾旱時期的結束。 -
Water delivery has been run over 30 years. the main canal has the problem that the actual conveying capacity is very low now and the conveying capacity of the east - one main canal i only half of the design value, this lead to guaranteed real - time efficiency of the irrigation of the farmland recede greatly. the downstream has no water and crops were drought to death have been seen more times in the irrigation period, this lead to the contradictory between the upstream and downstream on water usage, moreover, the lower discharge capacity of the dry canal in irrigation period is the main cause of the actual irrigated area is only half of the design value
經過三十年的輸水運行，目前乾渠工程存在嚴重的輸水能力低問題，其中東一乾渠輸水能力只能達到原設計的1 2 ，使農田的適時灌溉保證率大大降低，多次發生灌溉期下游見不到水而旱死莊稼的情況，造成上下游用水矛盾突出，而且灌溉期乾渠過流能力偏小，是導致實際灌溉面積僅為設計值的1 3的重要原因。
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