Results 1 to 10 of about 1,686,075 (164)

Floristic analysis of seed plants in Wenzhou Area, southeastern Zhejiang, China(温州种子植物区系统计分析)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2017
温州地区位于浙江东南部,地处27°03'~28°36'N,119°37'~121°18'E,独特的地理位置和生态环境令其植物物种多样性较为丰富.基于文献和标本查阅,通过《温州植物志》项目组近6 a的系统调查,编写了《温州野生维管束植物名录》,以此名录为依据对温州种子植物区系进行了统计分析.结果发现:温州地区共有野生种子植物166科,958属,2 460种(不含种下类群),其中裸子植物8科,20属,25种,被子植物158科,938属,2 435种.就科和属所包含的种数而言,寡种科(2~10种)和单种属最多,
XIONGXianhua(熊先华)   +6 more
doaj   +1 more source

Analysis of the floras of seed-plants in Xinchang, Zhejiang Province(新昌县种子植物区系的研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2004
统计得出浙江新昌县共有野生种子植物141科,580属,1138种.主要分析了该县的种子植物区系特征,表明其亚热带山地植物区系的特征显著.从地史上的联系、植物区系的分析及近代地理环境的某些相似性来看,本地区植物区系与东亚日本、北美有着不同程度的联系.
JINMing-long(金明龙)
doaj   +1 more source

贵州麻阳河国家级自然保护区油脂植物资源 及多样性特征分析Analysis of oil plant resources and diversity characteristics in Mayanghe National Nature Reserve, Guizhou province

open access: yesZhongguo youzhi, 2022
为了解贵州麻阳河国家级自然保护区油脂植物资源的现状,为当地油脂植物的保护及可持续利用提供科学依据,通过野外调查及访问,结合文献查阅和标本整理,对麻阳河自然保护区油脂植物资源进行了调查分析。结果显示:该地区有油脂植物78科150属213种,其中裸子植物9种,被子植物204种。含种数在10种以上的优势科有2个,分别是蔷薇科和樟科;在生活型多样性上,乔木油脂植物占有明显的优势,共有88种, 占总种数的41.31%;种子、果实、种仁是麻阳河自然保护区油脂植物主要的含油部位;在植物区系上表现为以热带分布为主 ...
杨天友1,2,杨传东2 YANG Tianyou1,2, YANG Chuandong2
doaj   +1 more source

植物甾醇的抗炎性研究进展Progress on anti-inflammatory properties of phytosterols

open access: yesZhongguo youzhi, 2022
植物甾醇作为一种食物来源中的功能性成分,对人体产生有益的影响。近年来,植物甾醇由于其安全性和有效的抗炎活性而受到广泛关注。为系统介绍植物甾醇的抗炎作用,综述了植物甾醇对多种炎症抑制作用的分子机制,包括对细胞因子和其他炎症相关因子、NF-KB信号通路及免疫系统的影响,介绍了植物甾醇对结肠炎、前列腺炎、肝炎及其他炎症的作用。植物甾醇是一种有效抗炎的活性物质,未来仍需系统研究其抗炎分子机制及进行临床研究。As a functional ingredient in food sources ...
刘雅谦,李琳,孙万成,罗毅皓 LIU Yaqian, LI Lin, SUN Wancheng, LUO Yihao
doaj   +1 more source

Floristic analysis of the seed plants from Yandang Mountain of Yueqing, Zhejiang(浙江乐清雁荡山种子植物区系分析)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2018
在文献查阅、野外调查和标本鉴定的基础上,对浙江乐清雁荡山种子植物区系特征进行了统计分析,得到:(1)区域内共有野生种子植物732种(含种下类群),隶属147科、433属;科、属水平显示出多样性,含1个种的科和属分别占总科数和总属数的41.5%和67.9%. (2)科的分布区类型中,热带成分有64科,占总科数的42.9%,温带成分共36科,占24.6%;属的分布区类型中,热带成分和温带地理成分分别占总属数的49.1% 和50.9%,泛热带分布及其变型所占比例最大,为24.1%.
CHENWeijie(陈伟杰)   +3 more
doaj   +1 more source

Changes of Potential Suitable Areas for Lynx Under Climate Change in Mohe Area, Daxing'anling Mountains, China 气候变化下中国大兴安岭漠河地区猞猁潜在适宜区的变化

open access: yesWildlife Letters, EarlyView.
Climate change drives shifts in suitable habitats for Eurasian lynx and its prey (hare, roe deer) in Mohe, Daxing'anling Mountains. Under RCP scenarios, moderate warming (RCP4.5) promotes substantial habitat expansion, while high‐emission conditions (RCP8.5) lead to strong expansion in the 2050s but slower gains and partial contraction by the 2070s ...
Binglian Liu   +5 more
wiley   +1 more source

Uncovering correlates of decline and critical refuges for a threatened terrestrial mammal

open access: yesConservation Biology, EarlyView.
Abstract Globally, the geographic ranges of numerous species are contracting. Identifying spatiotemporal patterns of threat impact can illuminate why species decline in some parts of their range but persist in others. We developed a correlative approach to identify species’ response thresholds and locate ecological refuge areas associated with ...
Natalya M. Maitz   +5 more
wiley   +1 more source

Modeling seed germination data to meet biodiversity conservation needs in the Mediterranean

open access: yesConservation Biology, EarlyView.
Workflow to assess the availability and quality of germination data and assign species' thermal risk in the Mediterranean. (a) Assessment of data availability, including the phylogenetic distribution of the number of records (i.e. available germination data); (b) data quality assessment; and (c) assignment of climate risk categories for species that ...
Diana María Cruz‐Tejada   +2 more
wiley   +1 more source

科尔沁沙地生物结皮的土壤种子库特征

open access: yesShuitu Baochi Xuebao, 2007
通过野外取样和室内分析,初步研究了科尔沁沙地两种生物结皮在干、湿两种处理下土壤种子库种类组成、密度以及物种多样性等特征.结果表明①科尔沁沙地藻结皮和苔藓结皮土壤种子库的总密度为干旱藻结皮<湿润藻结皮<干旱苔藓结皮<湿润苔藓结皮.两种结皮上种子库的数量存在显著差异,对于干、湿处理的两种结皮,苔藓结皮上种子库的总密度均大于藻结皮上种子库的总密度;②两种生物结皮在干旱、湿润两种处理中共出现了6科、15种植物,种子库的组成以一年生草本植物、中生植物为主,二者百分比均超过76%;③在干旱藻结皮、湿润藻结皮 ...
郭轶瑞   +4 more
doaj   +2 more sources

Study on flora composition and species diversity of Pseudotaxus chienii communities in Fengyangshan Nature Reserve(凤阳山白豆杉各群落区系组成和物种多样性的比较研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2006
在对凤阳山白豆杉种群进行野外调查的基础上,分析了其群落的区系及物种多样性.结果表明:凤阳山白豆杉群落中共有维管植物59科104属160种(含变种),其中蕨类植物5科6属8种,裸子植物4科7属8种,被子植物49科88属142种.区系成分复杂,大部分属于温带和热带分布类型,其中温带类型占总属数的58.
DINGBing-yang(丁炳扬“)   +3 more
doaj   +1 more source

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