It indicated evidently tropical floristic remnant and affinity in the Alsophila spinulosa community. Comparing with the fossil flora from late Cretaceous and Tertiary (i.e. Northeast China flora, Fushun flora in Liaoning, Jinggu flora in Yunnan and Shanwang in Shandong) in China, pteridophyte flora of the Reserve was quite similar to that of late Cretaceous. Nevertheless, its spermatophyte flora was little similar to that of Tertiary, where angiosperm were booming in that period.

將之與中國(guó)晚白堊紀(jì)和新生代第三紀(jì)中國(guó)東北久久精品视频色、遼寧撫順、云南景谷、山東山旺化石植物類群相比，發(fā)現(xiàn)桫欏群落中蕨類植物成分與其晚白堊紀(jì)化石植物群有著高度的相似性国产三级图片，而其種子植物組成與其后興起的第三紀(jì)被子化石群不甚相似。

The Siberia province is characterized by great development of Syringothwts, but lack of Gigantoproductus and less development of corals and plants, belonging to Angara flora.

西伯利業(yè)省以管孔貝大量發(fā)育為特征可以免费看欧美搞黄视频的视频网站，缺少大長(zhǎng)身貝類，珊瑚不甚發(fā)育夜夜狠狠青草伊人中文字幕，植物少見偷拍精品一区，為安加拉植物群；

A comparative study of pollen floras between two cores: Core 17940 from the northern slope of the South China Sea and a core from the Toushe Basin in central Taiwan Province, reveals that there were three different vegetation types around the two areas during 15-40kaBP. The first type is characterized with the subtropical evergreen broadleaved forest during MIS2 (20-15kaBP). The second is the Pinus/Alnus-dominated woody plant communitites, corresponding to an interstadial summer monsoon dominated warm and humid climate and higher sea/lake level. The third is the Artemisia/Poaceae-dominated herb communities, corresponding to a stadial winter monsoon dominated warm and dry climate and lower sea/lake level.

根據(jù)南海北部17940孔和臺(tái)灣中部頭社孔孢粉序列對(duì)比結(jié)果飘花电影院午夜伦天堂，首次提出了華南地區(qū)15-40kaBP期間的三個(gè)具代表性植物群：1以青栲類為主的亞熱帶常綠闊葉林為第1植物群欧美偷拍性爱小视频，該植物群在MIS2階段(20-15kaBP)，為南海北部周邊地區(qū)和臺(tái)灣中部頭社盆地周圍地帶性植被又爽又色网站；2以松屬或榿木屬為主的木本植物為第2植物群欧美性爱三级在线观看，對(duì)應(yīng)于間冰階，夏季風(fēng)盛行激情另类无码，降水充沛人人鲁人人尻，氣候暖濕，高海面免费福利视频黄色网站；3以蒿屬或以禾草為主的草本植物為第3植物群黄色A，對(duì)應(yīng)于冰階，冬季風(fēng)盛行1024在线看片你懂的，降水少黄色无码丝袜视频，氣候暖干，低海面亚洲一区二区三区a片。

On the basis of mega and microfossil records, the flora of Yunnan Province has been studied in order to reveal the Tertiary floral evolution and climatic change.

根據(jù)已有大化石和孢粉植物群的研究亚洲三级片免费看视频，從植物區(qū)系和類群兩個(gè)層次上，對(duì)云南第三紀(jì)植物群發(fā)展和氣候變遷進(jìn)行了分析一区二区亚洲黄色网站。

The study of Namurian Flora is not so well advanced because of the limited geographic distribution of the plants in the world, even the stage had been taken place by Serpukhovian and Bashkirian due to the middle borderline between Upper and Lower Carbeniferous passing through the ammonite subzone E2 and subzone H1 of Namurian A, thus there are not so many practical papers subjected to the plants of this stage like the other periods these years.

納繆爾期植物群的研究工作因受到該期地層分布的局限性而不如其他地史時(shí)期植物群研究地深入欧美精品AAAAAAA，甚至由于納繆爾階A期菊石E_2與H_1亞帶之間的界線亦是上下石炭統(tǒng)的分界線，所以在近年來的《國(guó)際地層表》中該階名也逐漸被塞普霍夫階和巴斯基爾階所代替高中生破处视频在线观看。

These mainly are Pteridophyta and Gymnospermae and plant species are frequent ones in lower and middle Jurassic, basically in corresponding to Coniopteris-Phoenicopsis flora group of Lower-Middle Jurassic coal-bearing strata widely distributed in China.

植物化石中以蕨類和裸子類為主久久XX久久免费视频，植物總體種群為中外早中侏羅世地層中常見分子，基本上相當(dāng)于我國(guó)早中侏羅世廣泛分布的含煤地層所含Coniopteris-Phoenicopsis植物群欧美交a欧美精品z。

Phragmites australis, by TWINSPAN, and the community characteristics of each association were described. The result of the ordination for 41 samples by DCA revealed the relationships between the pattern of these communities and certain environmental factors, especially the moisture in soil.

樣方的DCA排序結(jié)果較好地反映了植物群叢類型與環(huán)境因子黄色人成影院一级，尤其是土壤含水量之間的關(guān)系精品福利99。28種DCA排序結(jié)果較好地反映了群叢的生境特征，優(yōu)勢(shì)種的分布格局在很大程度上決定著植物群落的分布格局5月婷婷综合网。

It is very possible that Noeggerathiales from both Cathaysian and Euramerican floras could live in wet lower land or arid upland.

很可能美女99黄网免费视频，瓢葉目植物在歐美植物區(qū)和華夏植物區(qū)均可發(fā)育于水分充足的低地植物群和排水條件較好的高地植物群。

Fossil woods, silicified and charcoal material, are investigated for the first time from the Yuanmou Basin of Yunnan Province and the Taigu Basin of Shanxi Province at the age of Pliocene in present paper.

首次報(bào)道了云南元謀盆地(虎跳灘土林东南亚黄色毛视频、灣堡土林和新華土林)晚上新世的硅化木材植物群和山西太谷盆地晚上新世的炭屑木材植物群800AV久久久凹凸精品，分析了這兩個(gè)盆地當(dāng)時(shí)的植被、環(huán)境和氣候人人超碰人人爽人人添，為認(rèn)識(shí)我國(guó)西南地區(qū)和北方中部地區(qū)晚上新世氣候變化提供了生物學(xué)證據(jù)免费看乱伦毛片。

Based on 18 boxes of fossil specimens collected by the author from Xiaheyan, Zhongwei, Ningxia Hui Minority Autonomous Region and some other geological and palaeontological data from both Xiaheyan and the adjacent sections in the east sector of North Qilian Mountains, the present paper studies the botanical characteristics of Middel-Late Namurian Flora in Locality Xiaheyan and represents the primary reconstruction of the Middle-Late Namurian Flora in the Northeast Qilian Mountains, also tries to make available accounts for the correlation between the different Flora provinces, and discusses the origin time of Cathaysian Flora based on the succession and the transmissibility of the plants through the whole Namurian stage.

結(jié)合自從大學(xué)三年級(jí)一直到碩士研究生階段筆者踏勘過的北祁連山東段地區(qū)十幾條石炭系剖面，以及對(duì)相關(guān)文獻(xiàn)的整理毛片网毛片官方网，筆者初步分析了北祁連山東段納繆爾中晚期植物群的垂直演化分布情況黄片免费视频高清在线观看，并完成了該期全球不同植物地理區(qū)系植物群植物學(xué)性質(zhì)方面的簡(jiǎn)要比較。北祁連山東段地區(qū)納繆爾早期與中晚期植物群的遺傳性與繼承性国产在线精品国自产拍影院同，加之華夏植物群的特征分子及一些東方型地方性分子在納繆爾早期的出現(xiàn)日韩美乳无码观看网站免费，筆者認(rèn)為這些無疑為晚古生代四大植物群之一的華夏植物群的起源完成于納繆爾初期提供了有利證據(jù)。