旱生型 的英文怎麼說
中文拼音 [hànshēngxíng]
旱生型
英文
xeromorphy-
The dissertion, after introducing physical geography situation and societal economic sitiuation of chongqing, has also analysed the basic feature of water resources in chongqing, at present the water resources utilization in chongqing is still in traditional phase. there are so many faults and shortcomings in water resources management system. the construction of water resources institutions and regulations is fallen behind. the supply of water resoures has not sufficiently satisfied the demand to water resources. the condition of water quality has not radically improved. soil losses is still serious. the incidence of flood and drought is very high. in accordance with present condition of water resources utilization in chongqing, the dissertion argues that it should strengthen people ' s understanding to water resources sustainable utilization for chongqing ; reform the present water rexources management system and have a try on water affairs management system in chongqing ; make effort to construction of water resources " institutions and regulations ; realize demand management, constuct save - water model society ; according to actual condition, strength water utilization constrution, then realize the balance between water resources supply and demand ; according to the idea of " control resources, conduct flow ", control water pollution, realize sanitary generation ; control soil losses and protect water enviroment ; construc t the system of flood control and diaster prevent
在對重慶市的自然地理情況和社會經濟情況作了介紹之後,還分析了重慶市水資源的基本特徵,目前重慶市的水資源利用還處在傳統的開發利用階段,水資源管理體制還存在許多弊端,水的法規制度建設也相對落後,水的供給還不能完全滿足需求,水質狀況沒有得到根本性的改善,水土流失還很嚴重,水旱災害發生的頻率比較高。針對重慶市水資源利用的現狀,本文提出:應加強對水資源持續利用的認識;改革目前重慶市的水管理體制,嘗試水務局管理體制,相應加強水的法規和制度建設,實現需水管理,建立節水型社會;根據實際情況,加強水利建設,實現水的供需平衡;依據「控源導流」的思想控制水污染,實現清潔生產;治理水土流失,保護水環境;建設防洪減災體系。There are many adaptive changes in the two research subjects ( artemisia. songarica schrenk. and seriphidium. santolinum ( schrenk ) polijak. ) in morphology and anatomy, such as with the increase of the daily age, the root - shoots ratio increased ; the root became stronger ; the ratio of leaf volume and leaf area increased ; the volume of epidermic cell decreased ; the cut - icle and phellem layer on the surface of root thickened. stoma caved in leaf ; epidermal hair of leaf and stem well - developed, palisde tissue developed well, the cell gap decreased ; the spongy tissue disappeared ; leaf is kinds of isolateralthat is the typical xeromorphic structure ; crystal cell and fibric cell increased ; conducting tissue and mechanical tissue developed well ; bundle sheath appeared
實驗研究的兩種菊科( compositae )植物(準噶爾沙蒿( artemisiasongaricaschrenk )和沙漠絹蒿( seriphidiumsantolinum ( schrenk ) poljak . ) ) ,形態解剖方面的變化表現為:隨日齡增加,根長/株高比值日益增大;根系逐漸發達;體積與葉面積比逐漸增大;表皮細胞體積變小;角質層增厚;根外部出現加厚的木栓層;氣孔下陷;葉、莖部的表皮毛密布,柵欄組織日益發達;而細胞間隙日漸變小;海綿組織逐漸消失;葉面結構常為典型旱生結構? ?等葉面;晶細胞及纖維細胞數目增多;輸導組織、機械組織日漸發達;具有維管束鞘等等。The dissertatio n constructs the index system, introduces the coefficients of development, coordination, fairness, and the coefficient of sd, which is composed by the former three and can reflects the sd overall strength of watershed, brings forward the quantative criteria of in order that the research of wrcc is based on the good watershed ecology and environment, the dissertation, according to the ecological appropriate theory, builds the logarithm normal distribution model about the relation between the growth of natural vegetation and the depth of groundwater ; based on this relation model, proposes a quantitative method of ecological water requirement ( ewr ) of natural vegetation in arid area, which utilizes the results of rs technique and the spot testing data of vegetative physiology demand
針對流域特點建立了基於水資源的流域可持續發展評價指標體系,引入發展系數、協調系數、公平系數,以及由其構成的衡量水資源支撐社會可持續發展綜合水平與能力的可持續發展系數,提出了可持續發展的定量判別方法。為保證在良好生態的前提下進行水資源承載能力研究,論文根據生態適宜性理論,建立了乾旱區典型天然植物生長與主要環境因子的偏態單峰對數正態分佈模型。基於此關系模型,利用遙感技術成果以及植物生理需水的現場實驗數據,提出了乾旱區天然植被生態需水量計算方法。The paper establishes a ecological transect, with a length of 90 km and width of 16 km, utilizing the part of tm data on 16th august 1998, from harbin to the natural secondary forests in maoershan, heilongjiang province. with supervised classification, the tm data which had been corrected and enhanced via erdas, combining the data of gps in the field, was classified by seven types including : residential area, glebe, paddy field
本論文利用1998年8月16日的tm衛星數據的一部分,設置從黑龍江省哈爾濱市到帽兒山天然次生林區,長90km ,寬16km的生態研究樣帶。通過用erdas對衛星數據的校正、圖像增強等處理,結合gps野外實地調查數據,進行有監督分類。共分為7種類型:居民點、旱田、水田、河流、灌叢、闊葉林、針葉林,並建立了衛星影像分類解譯標志。Rich variety of natural climate, dry and rainless, irrigated by the melt water of tianshan mountain ' s ice and snow, sufficient sunlight, significant temperature gap between day and night, suitable for growth and cultivation of different types of wine grape, few disease and pest, high grape sugar contents level, moderate acid level, good color and luster, ideal material for producing top grade green food wine
自然氣候類型多樣,乾旱少雨,天山冰雪融水灌溉,光照充足,晝夜溫差大,適宜酒葡萄不同品種的生長發育,病蟲害少,葡萄果粒含糖量高,酸度適中、色澤好,是生產綠色食品高檔葡萄酒的理想原料。Jerusalem artichoke is a new - style perennial species, which has high yield, alkali - resistance, the ability against drought, cold and extensive adaptability
摘要菊芋是一種多年生、高產、抗寒、抗旱、耐一定鹽堿,並具有廣泛適應性的新型物種。4 the optimal water niche of m. h and m c are wetter than middle soil water content, belongs to mesophytes ; the optimal water niche of mosla scabra, on photosynthesis is more wetter than that of m. h and me, the optimal water niche between mesophytes and hygrophytes, and leaning to hygrophytes ; the photosynthetic water condition of m. d is arid environments, and its ecotype exits between mesophytes and xerophytes, and leaning to xerophytes. 5 m. h and m. s are locating between shade plants and sun plants, while m. c and m. d obviously belong to sun plants
4 、杭州石薺?與華薺?光合的最適水分條件是中等偏濕,其水分生態類型應屬于中生植物;石薺?光合的最適水分條件比杭州石薺?與華薺?光合的最適水分條件要求更濕,其水分生態類型介於中生和濕生植物之間,更偏向濕生;小魚仙草光合作用的水分生態條件是乾旱條件,其水分生態類型介於中生與旱生植物之間,更偏向旱生。The positive and negative anomaly centers at 500hpa level formed the anomaly " wave train " from lower latitude to higher latitude over east asia. the teleconnection pattern called east asia - pacific pattern ( eap ) plays important roles in the summer rainfall in shandong area. study shows that weaker okhotsk sea high, northward location of subtropical high and stronger indian low, are likely to lead to more rain in shandong province in summer
分析對比旱澇年不同層次高度場以及高低層散度場,結果發現,在春夏季旱澇年,高度場幾個主要的距平中心以及115 130 e區域高( 200hpa )低( 925hpa )層散度場基本呈現出反位相分佈特徵,北半球夏季存在的東亞-太平洋遙相關型( eap型)對山東夏季降水產生重要影響。The paper made an ecological anatomy, a cultivation experiment on the lime - soil habtat and an analysis on the diurnal variation of photosynthetic an transpiration rate from three aspects of morphology, transplantation, physiology. the conclusion is that : ( 1 ) from the viewpoint of morphological anatomy, it has typical xerophyte structure such as strong root system, small leaf area, dense floss under the leaf surface, high stomatal density, the small opening degree, developed vessels and palisade tissues etc
從形態學、栽培學和生理學三方面對迷迭香進行生態解剖、石灰土上的栽培實驗以及光合蒸騰速率日進程的分析,得出以下結論: ( 1 )在形態解剖上:迷迭香具有發達的根系,較小的葉面積,葉片下表面密被絨毛,氣孔密度大,開度小,厚的角質層和發育良好的木質部和柵欄組織等典型的旱生結構。It was showed that c. arborescens ecotype wu was generally the most drought tolerant one except lower than c. arborescens ecotype xj which was the maximum in may, bore comparison with zygophyllum xanthoxylum by estimating seasonally ; c. latens ecotype nx was significantlly lower than c. arborescens ecotype wu, the result was contrary to being known ; c. arborescens ecotype kerqin was significantlly lower than wu ; xj, the maximum in may, showed no else great difference to nx ; c. lanata was high in april and not high afterwards, however its phenological phase presented visible changes as compared with the original life patterns in western america
Arborescensecotypexj ) 5月耐旱性表現最強,其他時間與寧夏駝絨藜差別不大;北美駝絨藜( c lanata ) 4月拐點很高, 4月以後耐旱性降低,其物候期與原分佈區(美國西部)相比發生了很大變化。駝絨藜屬植物在不同季節中蒸騰速率的日變化基本上都為典型的單峰曲線。With advantageous water, soil and organisms resources, the dadiwan culture, the yangshao culture, the longshan culture and the xiashang culture developed, original settling - down dry farming culture formed gradually, which laid sound foundation for agriculture civilization in the weihe valley ; among which, land use of arable farming was replaced largely by pastoral farming in the mixed area of agriculture and animal husbandry in north weihe region between 4 000 - 3 000 a b. p., because of dry and cold weather resulted in environment deterioration and soil degradation. at the beginning of 3 100 a b. p.,
在8500 3100abp全新世大暖期,渭河流域水、土、生物資源條件優越,人類發展了大地灣文化、仰韶文化、龍山文化和夏商文化,逐步形成了原始定居旱作農業類型文化,從而奠定了渭河流域農業文明的基礎,其間在4000刁000ab衛,渭河流域北部的農牧交錯帶,由於氣候的逐漸冷干化,導致水、土、生物資源退化,造成旱作農業土地利用方式由遊牧業取而代之。The calculation results show that the method designed is quite satisfactory. the models can reproduce the annual precipitation sequence and monthly precipitation sequence. and then the regional aridity index can be estimated statistically, in addition, they can reproduce the characteristic of history precipitation series
這兩類模型分別用於生成模擬年降雨量序列和月降雨量序列作為地區乾旱指標序列,從而對所研究地區乾旱特徵量的統計特性進行估計,並對已發生的地區乾旱的重現期進行識別。The former is applied to the ecotype of damp and semi - damp soil and irrigated or half - shaded land in arid and semi - arid area, while the latter was suitable for the ecotype of dry - farming land of semi - arid area
在濕潤、半濕潤生態類型區和乾旱、半乾旱生態類型區的水澆地、二陰地,應用「增溫說」 ;在半乾旱生態類型區的旱作田,應用「調水說」 。The bryophyte life forms there can be grouped into 6 types which are errantia, epipetria, epiphytia, hydro - radicantia, meso - radicantia and dry - radicantia types, out of which the species bf meso - radicantia account for 89. 81 % of the total species in this valley, the species of dry - radicantia account for 11. 57 % and errantia type possess the least species among all types
其中,中生根著型種類最多,占該流域苔蘚植物種數的89 . 81 % ,主要分佈於森林帶;其次為旱生根著型,占該流域苔蘚植物種數的11 . 57 % ;漂浮型種類最少,只佔該流域苔蘚植物種數的1 . 38 % ,且分佈范圍十分有限。Main results are generalized as follows : in dry year, coupling fitness of water requirement to rainfall reaches 90 % for sorghum and spring millet during crop ' s growth and reproductive season in shunyi county, while 85 % for peanut and soybean, 70 % for spring com and cotton, 65 % for alfalfa, and 55 % for cropping pattern of rice followed by wheat
主要結論包括: 1 )順義區乾旱年型下,高粱和春谷全生育期需水與降水的耦合度達到90 ;花生和春大豆其次,達到85 ;春玉米和棉花為70 ;苜蓿65 ;水稻和冬小麥?夏作物組合耦合度只有55 。需水量和灌溉定額則與耦合度大小相反。Stipa krylovii is a major component of typical steppe vegetation. it is a perennial, thicket, xerophytic bunch grass, with a high drought resistance
克氏針茅為多年生密叢型旱生草本植物,是亞洲中部典型草原的主要建群種。Expression of atnced3 driven by 35s promoter, rd29a promoter or kst1 promoter has greatly affected the growth and stomotal movement and drought tolerance in the transgenic tobacco plants. we observed the 35s : iatnced3 plants showed severe growth retarda - tion, and vd29a : atnced3 plants exhibited slight growth retardation, however we also observed the kst1 : : atnceds plants had a good growth under normal conditions
比較了35s 、 rd29a 、 kst1啟動子驅動atnced _ 3的表達對煙草生長和氣孔運動以及抗旱性的影響,結果表明35s轉基因植株明顯生長矮小,發育滯后; rd29a轉基因植株生長也比野生型慢一點; kst1轉基因陽性苗表型最好,在正常條件下生長旺盛。( 2 ) compared with wild - type torenia fournier, antisense acc synthase gene transformated plants of torenia fournieri had the following changes : the rate of ethylene biosynthesis dramatically decreased in the plants. cholrophyll content in the leaves is 1. 15 times of that of the wild - type torenia fournier leaves. the transformed plants had more flowers
( 2 )反義acs轉基因藍豬耳與野生型的藍豬耳相比較,乙烯的生成速率顯著下降:葉片葉綠素的含量提高,是野生型的1 . 15倍;花開的更多,花的壽命增加一天;單個果實的種子的數量和重量均有所增加;葉片多胺的含量顯著高於野生型的藍豬耳;植株對氧化脅迫、酸脅迫、乾旱脅迫的抗性均有增加。The results indicated : the probability distribution of natural moisture deficiency rates of winter wheat during the growing period could be divided into three types because of their regional difference, which were mainly in the north part, the middle part and the south part respectively in producing area of northern china. in north and middle, the frequency of serious drought was higher, but in south, it was the light drought
分析了不同乾旱年型和減產年型的時空分佈狀況及其相關關系,關系表明,乾旱年型和減產年型兩者沒有明顯的一致性,而且乾旱年型發生的站次多於對應的減產年型,尤其較重的乾旱年型出現較多,而較重的減產年型極少。Expression of atnced3 made the stomata of transgenic tobacco plants more sensitive promoting the somatal opening induced by light for some time and ' the stomatal closing induced by darkness. under drought stress conditions, they indicated an drastic improvement in drought tolerance than wild - type plants
Atnced _ 3基因的表達對氣孔運動影響較大,明顯促進了暗誘導的氣孔關閉。在逆境條件下,轉基因煙草抗旱性顯著提高,依次是35s , rd29a , kst1轉基因植株,都明顯高於野生型煙草。分享友人