Aims We investigated aerenchyma formation in stems of riparian plants Arundinella anomala and Salix variegate as affected by addition of ethylene and a-naphthalene acetic acid under non-flooded conditions in order to ascertain whether phytohormone ethylene and auxin are direct stimuli for aerenchyma formation in flooded plants.

為了探究乙烯和α-萘乙酸是否是水淹環(huán)境條件下植物體內(nèi)通氣組織形成的直接原因欧美一级人片，對三峽庫區(qū)岸生植物野古草和秋華柳在無水淹環(huán)境條件下施加乙烯利和α-NAA后莖中通氣組織的形成情況進(jìn)行了研究欧美激情一区二区三区高清视频在线观看。

The wavelet coefficient energy group of time-frequency surface has distinct difference for different swept extent.

儲(chǔ)層的孔隙度和電阻率曲線間微差形態(tài)波形的復(fù)雜程度隱含著儲(chǔ)層含油氣性的信息在线看激情无码视频，油層水淹程度不同高清无码不卡网站，其時(shí)頻平面上小波系數(shù)能量團(tuán)存在著顯著差異，隨水淹程度加重最新中文字幕在线视频网站，其能量團(tuán)分布由復(fù)雜逐漸趨于簡單單調(diào)日韩美女精品中文字幕在线。

Combined the classification results with development performance and injection production relationship in oil field, distribution s for residual oil in the reservoir plane and interlamination are studied and the distribution are also summarized.

通過列舉弱水淹層段測井曲線的特征及劃分方法，將弱水淹層段劃分結(jié)果與油藏開發(fā)動(dòng)態(tài)及注采關(guān)系相結(jié)合在线观看中文字幕网，研究油藏平面及層間層內(nèi)剩余油分布免费一级毛片在线播放女同，從而總結(jié)出油藏平面及層間層內(nèi)剩余油分布規(guī)律。

Combined the classification results with development performance and injection production relationship in oil field,distributions for residual oil in the reservoir plane and interlamination are studied and the distribution are also summarized.

通過列舉弱水淹層段測井曲線的特征及劃分方法天天视频在线50页免费观看，將弱水淹層段劃分結(jié)果與油藏開發(fā)動(dòng)態(tài)及注采關(guān)系相結(jié)合欧美日韩国产精品第页，研究油藏平面及層間層內(nèi)剩余油分布，從而總結(jié)出油藏平面及層間層內(nèi)剩余油分布規(guī)律人人爽爽人人爽人人精品。

Molecular biology and bioinformatics techniques can be used to study the mechanisms of plant adaptation to submergence at gene level.

運(yùn)用分子生物學(xué)和生物信息學(xué)等手段找出由水淹脅迫誘導(dǎo)的相關(guān)基因并對其進(jìn)行克隆51国产黄色视频，繁殖與培育具有耐水淹能力強(qiáng)的植物種類、品種和生態(tài)型欧美大屁股XXXX潮喷，將是從事植物抗水淹脅迫研究的科研人員的目標(biāo)和方向国产va精产。

Objective］ The purpose was to research the formation and change of aerenchymas in the stems of Arundinella anomala and Salix variegate seedlings treated by different continuous waterflooding times and depths.

［目的］研究在不同連續(xù)水淹時(shí)間和水淹深度處理下，野古草和秋華柳幼苗莖通氣組織的形成和變化女生张开大腿让男生桶。

Comparative analysis with the other non-stochastic model constrained by facies shows that the stochastic waterflooding model constrained by facies is consistent with the flooding conditions and rules, it also consistent with the rules of reservoir development and aeolotropism distribution, the result is more reliable, which can provide the effective foundation to adjust and tap the potential for this area.

與非相控隨機(jī)建模方法預(yù)測的模型對比分析表明日韩成人国语在线视频观看免费播放，相控下的隨機(jī)水淹模型比較符合油田開發(fā)過程中的水淹狀況及規(guī)律，符合儲(chǔ)層發(fā)育及其非均質(zhì)性分布規(guī)律18禁网站网址，可信度高15yc午夜福利在线视频，為該區(qū)調(diào)整挖潛提供了重要的地質(zhì)依據(jù)。

The changes of Cynodon dactylon propagules under flooding were studied in morphology and biomass.

研究了水淹條件下狗牙根繁殖體的形態(tài)特征和生物量的變化及其水淹后的恢復(fù)狀況男女av网站有那些。

Flooding,as a kind of disturbance events,occurred with higher and higherfrequency over the world.To investigate the effects of flooding disturbance ongrassland vegetation and the soil,a comparatively thorough study was conducted onAneurolepidium chinense grassland in Songnen plain,Northeast China.The studysite was located in Sanjiadian National Rangeland in the territory of Da'an city,Jilirprovince,which was partly flooded in 1998.On the study site,Several transectssubjected to different flooding durations and intensities were designed for thecomparative study among them on such aspects as vegetation characteristics,seedbanks,vegetative propagation of rhizomatous plants,distribution patterns ofpopulations,interspecific relations,and physio-chemical properties of soil.Theresults were as follows:(1)Of the functional group composition of the vegetation,with the elongation of the flooding duration or the increase of flooding severity,theratio of hygric and hygro-mesic plants increase,while that of mesic and mesoxericplants decrease,of Therophytes changed unimodally,of Geophytes increased,whileof Hemicryptophytes decreased.

為弄清草地植被及其土壤環(huán)境對水淹干擾的響應(yīng)怎么能看aAA片，在松嫩平原羊草草地1998年部分遭受水淹的吉林省大安市三家甸子草場內(nèi)設(shè)置了經(jīng)歷不同水淹干擾持續(xù)時(shí)間和不同水淹強(qiáng)度的樣帶，并在這些樣帶之間從植被特征A片无网、種子庫特征、根莖植物的營養(yǎng)繁殖性能黄色网站免费一级国产性生活破处真人版、種群分布格局成年男性网站、種間關(guān)系及土壤的理化性質(zhì)等多個(gè)方面展開對比研究，主要結(jié)果如下：(1)在植被的功能群組成中，隨干擾強(qiáng)度的增加和水淹干擾持續(xù)時(shí)間的延長变态欧美亚洲日韩女优电影在线观看，濕生欧美精品无遮挡、濕中生類植物功能群的優(yōu)勢度比例基本上是逐漸增加的，中生一级A片免费黄片、中旱生類植物功能群的優(yōu)勢度比例則逐漸減小亚洲精品成人AV观看青青，而一年生植物的優(yōu)勢度比例呈單峰型變化，地下芽植物比例增加桃色阁在线网站，地面芽植物比例減小超碰在线艹。

The analysis result shows that the remaining oil of this area is characterized as: Remaining oil is mainly distributed in thin tabulated beds and untabulated beds with low permeability. Remaining oil scatters widely. Complexity exists in the contact between remaining oil and water flooded layers and zones. Vertically, the remaining oil layers in adjusting area alternates with water breakthrough layers, between them the barrier beds is thin. Horizontally, because of the plane heterogeneity, the relatively good intervals are flooded, so that the remaining oil only exists in margin oil layer owing to faultiness of injection-production; remaining oil is enclosed by waterflooded zone, therefore, it is so complex relationships between remaining oil and waterflooded layers and zones that high requirements are made in the choice of completion optimization.

通過研究分析，研究區(qū)二類油層剩余油具有以下特點(diǎn)：(1)剩余油以表內(nèi)薄差層和表外層為主欧洲Va黄色视频，滲透能力低最新午夜国内自拍视频；(2)剩余油比較零散；(3)剩余油與水淹層和水淹帶的接觸具有復(fù)雜性国产盗摄网站；調(diào)整區(qū)剩余油從縱向上看91在线视频网站首页，剩余油層與見水層相間分布，隔層泄悠底耘哪愣摹AV网站天堂网；從平面上看，由于油層平面的非均質(zhì)性丁香六月激情久久，相對較好部位已水淹99超碰在线播放，只在油層的邊邊角角部位由于注采不完善等因素存在剩余油，剩余油被水淹帶包圍91精品国产综合久久精品图片，所以目前剩余油與水淹層和水淹帶的接觸相當(dāng)復(fù)雜午夜丰满少妇拍拍视频，這對完井方式的選擇提出更高的要求。