Scented plants can also evoke memories. Some annuals with good scents are sweet alyssum, the large flowering tobacco "Nicotiana Sylvestris", the Regal Lily, which flaunts clusters of trumpet-shaped white flowers, and velvety purple heliotrope.

芳香的植物同樣能喚起回憶亚洲激情乱伦，一些一年生植物有很好的香味，比如香雪球一级A片30分钟免费观看，大片花葉煙草植物：美花煙草自拍一区偷拍，花攢錦簇，隨風(fēng)搖曳的白色"帝王百合"亚洲午夜视频国产A片，和像天鵝絨般的紫色"青蓮"午夜三級片免费观看。

This research was conducted in degraded rangeland at the southwestern edge of the Mu Us sandland, Yanchi county, Ningxia, the soil seedbank features and its relation to vegetation was analyzed using similarity analysis and ordination method, the results show that seeds within soil distribute mainly in 0~5 cm soil layer, less seeds in 6~15 cm soil layer in exclosed and non-exclosed rangeland, for seeds in exclosed soil, species richness and diversity index H are higher, while D is lower, exclosure measure, generally speaking, can increase plant species and amount of vegetation and seeds in soil, some annual plants, mesophytes and halophytes appears in the soil or surface.

以毛烏素沙地西南緣寧夏鹽池縣的退化草場(chǎng)為研究對(duì)象，采用相似性分析和排序方法對(duì)封育和未封育草場(chǎng)土壤種子庫(kù)的特征及其與地上植被間關(guān)系進(jìn)行了研究求一毛片网站在线观看，結(jié)果表明無(wú)論封育區(qū)還是未封育區(qū)有沪有免费黄色网站，土壤種子庫(kù)中的種子主要分布于0~5cm的土層，6~15cm土層的種子數(shù)很少717免费理论电影；封育區(qū)土壤種子庫(kù)的物種豐富度大于未封育區(qū)欧美性爱建材，物種多樣性則表現(xiàn)為H 值較大，而D值較小一区二区三区日韩，總體上看封育措施可以提高地上植被和土壤中種子的種類和數(shù)量无码理论片，一些一年生植物、中生植物和鹽生植物開(kāi)始出現(xiàn)在地面或土壤種子庫(kù)中花蝴蝶视频在线观看。

An annual is best known as a plant that completes it's life cycle in a single season. Hardy annuals can survive cold temperatures and some light frost, while tender annuals cannot tolerate cold temperatures and should be planted only after there is no more danger of frost. Half-hardy annuals can tolerate some cold temperatures, but are usually killed by frost. Annuals make excellent space fillers for the perennial garden.

一年生植物最顯著的一個(gè)特點(diǎn)就是它在一個(gè)季節(jié)內(nèi)完成它的生命輪回国产盗摄Aⅴ一区二区，耐寒的一年生植物能夠在低溫和輕微霜凍的條件下生存，但是幼嫩的一年生植物不能忍受低溫亚洲日韩精品不卡在线，他們只能在沒(méi)有霜凍危險(xiǎn)的條件下種植性色精品福利一区二区，半耐寒型一年生植物能夠經(jīng)受一些低溫條件的考驗(yàn)，但是通常他們因?yàn)樗獌鏊劳觯?strong>一年生植物能夠?yàn)槎嗄暌怀刹蛔兊耐ピ簞?chuàng)造一個(gè)很出色的空間国产极品在线观看无码迅雷下载。

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(duì)水淹干擾的響應(yīng)女人阴道口被插视频，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(chǎng)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)度的樣帶插碰人人，并在這些樣帶之間從植被特征、種子庫(kù)特征亚洲国产AV无码精品无广告、根莖植物的營(yíng)養(yǎng)繁殖性能www.综合久久、種群分布格局、種間關(guān)系及土壤的理化性質(zhì)等多個(gè)方面展開(kāi)對(duì)比研究黄页视频在线学习，主要結(jié)果如下：(1)在植被的功能群組成中男人强奸裸体老女人视频，隨干擾強(qiáng)度的增加和水淹干擾持續(xù)時(shí)間的延長(zhǎng)，濕生亚洲欧美国产丝袜一区、濕中生類植物功能群的優(yōu)勢(shì)度比例基本上是逐漸增加的亚洲第一色色色，中生、中旱生類植物功能群的優(yōu)勢(shì)度比例則逐漸減小欧美色一区二区，而一年生植物的優(yōu)勢(shì)度比例呈單峰型變化黄网站A片免费，地下芽植物比例增加，地面芽植物比例減小久操免费在线观看。

The species structure and importance value dynamics of annual plants in herbage synusia during a growth period have been observed, and the ecological mechanisms of these changes have been analyzed also.

通過(guò)跟蹤觀測(cè)一年生植物層片在一個(gè)生長(zhǎng)周期內(nèi)種類組成及其重要值的變化黄页观看免费在线，并分析變化的生態(tài)學(xué)機(jī)理，得出如下結(jié)論：①在固沙區(qū)草本層片內(nèi)AA片免费看，小畫眉草的多度大伊人久久、蓋度和重要值在群落中所占比例較大，是群落優(yōu)勢(shì)種操欧美性爱；②在充足的降雨后综合久久久久久，一年生植物都突發(fā)性萌發(fā)，但隨著降雨的減少欧美丰满少妇XXXX性，層片內(nèi)的一年生植物種群都呈衰退之勢(shì)日本男女欧美一级免费，其中小畫眉草和虎尾草種群急劇減少，狗尾草男人女人天堂视频一区,二区,三区、霧冰藜和蟲(chóng)實(shí)種群減少幅度不大日本色色视屏。

Scented plants can also evoke memories. Some annuals with good scents are sweet alyssum, the large flowering tobacco "Nicotiana Sylvestris", the Regal Lily, which flaunts clusters of trumpet-shaped white flowers, and velvety purple heliotrope.

芳香的植物同樣能喚起回憶，一些一年生植物有很好的香味久久久久人妻一道无码AV，比如香雪球亚洲av成人一区二区三区观看，大片花葉煙草植物：美花煙草，花攢錦簇一级二级三级毛片，隨風(fēng)搖曳的白色&帝王百合&国产中文字幕网，和像天鵝絨般的紫色&青蓮&。

In contrast, for t he newly stabilized sand dune, t he annual plant will consume more resource and energy for nutrition development in order to cope wit h the harsh environment.

通過(guò)研究免费一级a片免费网站，我們得到以下結(jié)論：隨著沙面固定時(shí)間的延長(zhǎng)200avcom，一年生植物生存的環(huán)境相對(duì)好轉(zhuǎn)，一年生植物把更多的資源和能量用于繁殖网上可看的欧美日皮大片网站，增加其種群規(guī)模日韩,欧美在线不卡片；沙丘固定時(shí)間相對(duì)短的A女人黄色网站，一年生植物將把更多的資源和能量用于營(yíng)養(yǎng)生長(zhǎng)，以抵御不利的生長(zhǎng)環(huán)境欧美黑人巨大激情视频。

Plant species were classified into six plant functional groups based on their life forms, that is, trees, shrubs, sub-shrubs, perennial grasses, perennial forbs and annuals.

2依照生活型將錫林河流域主要植物種劃分成6個(gè)植物功能群：?jiǎn)棠疽磺?二区,三区乱淫视频、灌木、半灌木欧美三级自拍视频、多年生禾草7788色婷婷、多年生雜類草和一年生植物。

The relationship between biomass and succession gradient also showed unimodel pattern: y=-8.7647χ^2+86.696χ+67.14 (R^2=0.6164). As for functional groups of life form, annual plants showed decreasing trend in the community, perennial grass showed increasing tendency, while sedges and perennial forbs both showed increasing tendency, in which the increasing extend for sedges slowly and for grasses sharply.

一年生植物在群落中的數(shù)量呈下降趨勢(shì)在线二区三区国产免费看污；禾本科植物在群落中的數(shù)量呈上升趨勢(shì)www.色色色网；莎草類及雜類草植物在群落中的數(shù)量均呈增加趨勢(shì)，但莎草類植物增幅不大自拍偷自拍亚洲精品偷一，而雜類草植物則急劇增加。

You can add color and new life to the garden by replacing dying Summer Annuals and Perennials with Autumn blooming plants like Pansies, Chrysanthemums, and Ornamental Cabbage and Kale, Marigolds, and others.

你可以增添新的色彩和生命的花園取代垂死夏季與秋季開(kāi)花植物一年生植物多年生植物久久精品国产72精品，喜歡pansies欧美一级AAAAA特黄片免费看，菊花、觀賞和Kale白菜丝袜美女诱惑久久国产、金盞花和等日韩自拍中文在线视频观看。

aestival annual：夏季一年生植物

"夏季的","aestival" | "夏季一年生植物","aestival annual" | "夏季的","aestivalis"

aestival annual plant：一年生植物

aestival 夏季的 | aestival annual plant 一年生植物 | aestivation 夏眠

aestival annual plant：夏季一年生植物

adventive plant 外來(lái)植物,引進(jìn)植物,不定株 | aestival annual plant 夏季一年生植物 | aggregate preparation plant 骨料制備廠,骨料加工廠

Aestival annual plants：夏季一年生植物

風(fēng)景林業(yè) Aesthetic forestry | 夏季一年生植物 Aestival annual plants | 盛夏景色 Aestival aspect

alyssum：十字花科的一年生植物

十字花科的一年生草本madwort | 十字花科的一年生植物alyssum | 十字花科植物crucifercruciferae

alyssum：十字花科的一年生植物, 香雪球

alymphocytosis | 淋巴細(xì)胞缺乏(血內(nèi)) | alyssum | 十字花科的一年生植物, 香雪球 | Alzak aluminium | 鋁制金屬反射鏡

annual：一年生植物

不,停車場(chǎng)南側(cè)的那幢水泥建筑是游客中心(visitor's center),好多漂亮嬌嫩的一年生植物(Annual)都擺放在那里. 買票穿過(guò)大廳,才真的進(jìn)入植物園. 下午5點(diǎn),我們登上了"鯨之旅"號(hào)(Cruisin' with the Whales)開(kāi)始了期盼已有的觀鯨游.

alyssum：十字花科的一年生植物, 香雪球

alymphocytosis || 淋巴細(xì)胞缺乏(血內(nèi)) | alyssum || 十字花科的一年生植物, 香雪球 | Alzak aluminium || 鋁制金屬反射鏡

annuals：一年生植物

Here is list of plants that you can use to attract butterflies:這里是清單,你可以用植物來(lái)吸引蝴蝶: | Annuals一年生植物 | Impatiens鳳仙

winter annual：冬性一年生植物,一年生冬季作物

winter ==> 冬季 | winter annual ==> 冬性一年生植物,一年生冬季作物 | winter apple ==> 晚熟蘋果