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Forest characteristics and population structure of Glyptostrobus pensilis, a globally endangered relict species of southeastern China

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Plant Diversity 2019年第4期41卷 237-249页

作者： Cindy Q. Tang Yongchuan Yang Arata Momohara Huan-Chong Wang Hong Truong Luu Shuaifeng Li Kun Song Shenhua Qian Ben LePage Yi-Fei Dong Peng-Bin Han Masahiko Ohsawa Buu Thach Le Huu Dang Tran Minh Tri Dang Ming-Chun Peng Chong-Yun Wang Institute of Ecology and Geobotany School of Ecology and Environmental ScienceYunnan UniversityDongwaihuan South RoadUniversity TownChenggong New DistrictKunmingYunnan 650504China The Nature Conservancy Society of Japan Mitoyo Bldg.2F1-16-10 ShinkawaChuo-kuTokyo 104-0033Japan Key Laboratory of Three Gorges Reservoir Region's Eco-Environment Ministry of EducationChongqing UniversityChongqing 400045China Graduate School of Horticulture Chiba University648 MatsudoChiba 271-8510Japan Institute of Botany Yunnan UniversityKunmingYunnan 650091China Southern Institute of Ecology Vietnam Academy o f Science and TechnologyHo Chi Minh CityViet Nam Research Institute of Resource Insects Chinese Academy of ForestryKunmingYunnan 650224China School o f Ecological and Environmental Sciences East China Normal UniversityShanghai 200241China Pacific Gas and Electric Company 3401 Crow Canyon RoadSan RamonCA 94583USA The Academy of Natural Science 1900 Benjamin Franklin ParkwayPhiladelphiaPA 19W3USA

The Chinese water pine Glyptostrobus pensilis is the sole surviving species of the genus Glyptostrobus. It is endemic to southern China, central Vietnam, and eastern Laos, and today it is nearly extinct in the wild. Forest community characteristics and population structure of G. pensilis in China have remained un-known up to now. We investigated six swamp forest stands and analyzed their forest community characteristics (i.e. vertical stratification, species composition, and diversity) and population structure, including the frequency distribution of DBH (diameter at breast height) and age-classes as found in Fujian Province, southeastern China. The vertical stratifications of all the forest stands were rather simple. The remaining wild specimens ranged from roughly 15 to some 357 years for an average of ca. 85 years, with only a few individuals less than 20 years old. Compared with the stands and populations of G. pensilis in Vietnam, the taxonomic compositions of the stands in the two regions were different, except for the dominant species-G. pensilis. The Shannon-Wiener index showed the overstory of each stand had much lower diversity (0.26 on average) in Fujian Province than that (1.97 on average) in Vietnam, whereas the diversity indices were about the same (around 2.41) for the understories in the two regions. Furthermore, we discovered 18 G. pensilis seedlings at the study sites in Fujian Province. This discovery demonstrates that G. pensilis regeneration is extremely poor and its populations are declining, although these populations are rela-tively healthier than those in Vietnam.

关键词： Age-class Fujian Province Glyptostrobus Regeneration relict plant Vietnam

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A possible relict mantle wedge: Geochemical evidence from Paleogene volcanics in North China

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Chinese Science Bulletin 2001年第22期46卷 1917-1922页

作者： Bolin Cong Jinghui Guo Wenjun Liu Chinese Acad Sci Inst Geol & Geophys Beijing 100029 Peoples R China

The major and trace element and isotopic composition were analyzed for the Paleogene volcanics in North China dated by the K-Ar method. The geochemical data show that most volcanics are in calc-alkaline series and the minor is in alkaline series. They differ obviously from Neogene and Quaternary volcanics in geochemistry. In particular, the Paleogene volcanics from the southern part of North China were derived from enriched lithospheric mantle (EMU), which were likely to be a relict mantle wedge formed during the subduction of the Yangtze plate into the North China plate in late Triassic (Indo- Sinian).

关键词： volcanics relict mantle wedge geochemistry Paleogene North China.

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A winged relative of ice-crawlers in amber bridges the cryptic extant Xenonomia and a rich fossil record

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Insect Science 2024年第5期31卷 1645-1656页

作者： Yingying Cui Jeremie Bardin Benjamin Wipfler Alexandre Demers-Potvin Ming Bai Yi-Jie Tong Grace Nuoxi Chen Huarong Chen Zhen-Ya Zhao Dong Ren Olivier Béthoux College of Life Sciences South China Normal UniversityGuangzhouChina CR2P(Centre de Recherche en Paleontologie-Paris) MNHN-CNRS-Sorbonne UniversiteParisFrance MorphoLab Leibniz Institute for the Analysis of the Biodiversity ChangeBonnGermany Redpath Museum and Department of Biology McGill UniversityMontrealQuebecCanada Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBejingChina College of Life Sciences Capital Normal UniversityBeijingChina

Until the advent of phylogenomics,the atypical morphology of extant represen-tatives of the insect orders Grylloblattodea(ice-crawlers)and Mantophasmatodea(gladi-ators)had confounding effects on efforts to resolve their placement within *** recent research has unequivocally shown that these species-poor groups are closely related and form the clade ***,divergence dates of these groups re-main poorly constrained,and their evolutionary history debated,as the few well-identified fossils,characterized by a suite of morphological features similar to that of extant forms,are comparatively ***,the extant forms of both groups are wingless,whereas most of the pre-Cretaceous insect fossil record is composed of winged insects,which represents a major shortcoming of the ***,we present new specimens em-bedded in mid-Cretaceous amber from Myanmar and belonging to the recently described species Aristovia *** abundant material and pristine preservation allowed a de-tailed documentation of the morphology of the species,including critical head *** with a morphological data set encompassing all Polyneoptera,these new data unequivocally demonstrate that *** is a winged stem *** discov-ery demonstrates that winglessness was acquired independently in Grylloblattodea and ***,wing apomorphic traits shared by the new fossil and earlier fossils demonstrate that a large subset of the former Protorthoptera"assemblage,representing a third of all known insect species in some Permian localities,are genuine representatives of *** from the fossil record depict a distinctive evolution-ary trajectory,with the group being both highly diverse and abundant during the Permian but experiencing a severe decline from the Triassic onwards.

关键词： Grylloblattodea insect Mantophasmatodea Mesozoic Polyneoptera relict

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Subduction age of Neo-Tethys oceanic crust in southwest Yunnan, China: Laser micro-area ^(40)Ar-^(39)Ar dating

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Chinese Science Bulletin 1999年第23期44卷 2196-2199页

作者： ZHOIMG Dalai, Jl Jianqing and HU ShilingInstitute of Geology, Chinese Academy of Sciences , Beijing 100029, China Institute of Geology Chinese Academy of Sciences Beijing China

The basic granulite, which is considered to be the MORB based on geochemistry and isotopic characteristics[1], has been discovered recently as the enclaves in the Yingjiang island-arc magmatic suite on the border of Burma and west Yunnan, east of Myitkyina suture in the eastern Burma. The laser micro-area 40Ar-39Ar technique is used to date the age of garnet

关键词： laser micro-area 40Ar-39Ar dating granulite facies metamorphic oceanic crust relict Neo-Tethys subduction age.

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Holocene paleoenvironmental traces in soil profiles of Eastern Fennoscandia

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Chinese Science Bulletin 1999年第S1期44卷 91-96页

作者： Pavel Krasilnikov Institute of biology Karelian Research Centre Petrozavodsk Russia

After the deglaciation (ca. 12000 yr B.P.), climate of the Eastern Fennoscandianterritory varied. Changes in both temperature and moisture content lead to vegetative successionsand changes in soil formation. Though fossil soils are rare in Eastern Fennoscandia, numeroustraces of paleoenvironments are detected in soil profiles. We propose that in most cases climatic,water level, and vegetative changes were relatively rapid. A new soil profile started itsdevelopment, while the older one remained practically untouched.

关键词： Podzols relict soils Holocen

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Modern aspects of construction of information microwave therapy devices

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Natural Science 2013年第12期5卷 1230-1237页

作者： Stanislav N. Darovskih Evgenij P. Popechitelev Nadezhda V. Vdovina Ivan V. Novikov Saint Petersburg Electrotechnical University “LETI” Saint Petersburg Russian South Ural State University Chelyabinsk Russian

This article is devoted to presenting modern aspects of building information microwave therapy devices. And it presents an analysis of the existing problems of the organism homeostasis control by means of electromagnetic radiation. The new principles of synthesis of operating influences are formulated. On the basis of the thermodynamic approach is justified as a leading role modeling the space microwave background to restore disturbed homeostasis of the organism. The general patterns of development of the pathological process and possible mechanisms of corrective action of natural electromagnetic background are described. The implementation of the approach offered by the authors to constructing device information physiotherapy allowed creating high-performance hardware and software means for the prevention and treatment of a wide range of human diseases.

关键词： Information Microwave Therapy Homeostasis Electromagnetic Pollution relict Radiation Electromagnetic Radiation

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Gravitational Energy Level and the Nature of Microwave Background of Universe

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Journal of Modern Physics 2011年第4期2卷 175-187页

作者： Vladimir Konushko 不详

In 1965, Penzias and Wilson discovered thermal radiation with T0 ~ 2.7 K further on called “relict”. This article is concerned with the new phenomenon, i.e. the formation of gravitational energy levels by any body, with the result that photons are produced whose spectrum close to the Earth is similar to that of a blackbody with T0 ~ 2.7 K. The critical analysis of the experiments performed with the cosmic observatories COBE and WMAP completely confirms this prediction.

关键词： Microwave Background relict

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