Results 91 to 100 of about 3,093 (230)
Shuitu Baochi Xuebao, 2003 在短花针茅荒漠草原,对比研究了不同放牧制度群落植物重要值和多样性,研究结果表明:划区轮牧和对照区重要值较高的植物为短花针茅、无芒隐子草、碱韭和糙隐子草,自由放牧区1年生植物重要值较高;2002年Shannon-Wiener、Simpson和Pielou群落多样性指数自由放牧区偏高于轮牧区,但从3种指数的影响因子重要值的分布上看,轮牧区主要分布在建群种和优势种上,自由放牧区分布在建群种、伴生种和1年生植物上,可以认为轮牧条件下群落环境更稳定.
卫智军, 杨静, 杨尚明
doaj +2 more sources
Investigation of amphibians and reptiles in Wuyi Mountain Tongmu area and Mangdang Mountain National Nature Reserve, Fujian province [PDF]
, 2017 福建茫荡山、武夷山国家级自然保护区位于我国东南部的仙霞岭—武夷山脉，生态环境良好，动植物资源丰富，是全球生物多样性保护的重要区域之一。两栖动物和爬行动物在脊椎动物的进化历程中扮演着十分重要的角色，同时也是我国受威胁程度最高的两个生物类群。本文于2015年9月至2016年10月采用样线法对福建茫荡山和武夷山两个保护区的两栖和爬行动物进行了初步的调查研究，并结合历史文献数据进行分析，获得结果如下： (1)茫荡山自然保护区有两栖动物9科22属33种，其中蛙科和姬蛙属为优势科、属 ...
巩匆然
core
Mechanism for the Influence of Saccharomyces cerevisiae on Microbial Community Succession during Nongxiangxing Baijiu Fermentation [PDF]
The changes in the microbial niche and community assembly of fermented grains for Nongxiangxing baijiu during fermentation by Saccharomyces cerevisiae were analyzed to explore the mechanism for the influence of inoculation with S.
WANG Shuanghui, MA Shiyuan, LI Zijian, SONG Chuan, DAI Hancong, SHAO Yan, HUANG Dan, LUO Huibo
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Application of High-throughput Sequencing in Researches of Cadaveric Microorganisms and Postmortem Interval Estimation [PDF]
, 2018 Necrobiome is the main factor causing the cadaver decomposition. Studying the microbial succession during decomposition is one of the main tasks of forensic microbiology.
FU Xiao-liang, GUO Juan-juan, LIU Zhuo-ying，et al.
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牛山湖两种优势小型鱼类空间分布与沉水植被的关系! [PDF]
, 2012 运用8种网目规格的成套浮性刺网作为鱼类采样工具,于2005年夏季在长江中游浅水草型湖泊牛山湖进行鱼类定量采样,通过比较不同茂密程度黄丝草生境中的小型鱼类组成、数量和大小结构,探讨此类湖泊小型鱼类的空间分布特征及其与沉水植被的关系.采样期间共捕获13种1124尾鱼,依据其等级丰度和出现频次,和红鳍原!为该湖优势上层小型鱼类.在调查的沉水植物生物量范围内,鱼类物种丰富度和Shannon多样性指数与沉水植物生物量之间呈现倒抛物线关系;两种优势小型鱼类的种群丰度均与沉水植物生物量有着显著的线性正相关关系 ...
刘家寿 +3 more
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Effects of House Warehouse Storage on Fungal Community Diversity of Imported Soybean [PDF]
In order to explore the effects of house warehouse storage on fungal community diversity of imported soybean, Illumina MiSeq high-throughput sequencing was employed to analyze the fungal community structure and diversity of newly harvested imported high ...
CAO Yi +5 more
core +1 more source
, 2013 根据2010年和2011年对烟台近海大型底栖动物的周年调查资料,采用优势度指数、物种多样性指数及Cluster聚类和MDS排序方法,进行群落特征和群落演替情况的。研究。结果表明,该海域共采集大型底栖动物176种,其中优势类群为多毛类。群落中的优势种主要包括短叶索沙蚕和不倒翁虫。烟台近海年平均生物量和丰度分别为16.72g/m~2和1022ind/m~2,且存在季节性差异。丰富度指数(D)、均匀度指数(J)和多样性指数(H')的年平均值分别为2.30、0.70和1.91 ...
李宝泉, 王全超
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Comparison and Correlation Analysis of Microbial Community Diversity and Flavor Compounds in Different Layers of Pit Mud for Luzhou-flavor Baijiu in Different Seasons [PDF]
This study focused on the analysis of the microbial community structure and flavor substances of different layers of pit mud for Luzhou-flavor baijiu in spring and autumn using high-throughput sequencing and headspace solid-phase microextraction combined
WANG Yiwen, TIAN Yaoyao, ZHANG Kefen, ZHANG Suyi, GAO Jie, TANG Hongjie, SONG Chuan, TANG Yu, SUN Mingjun, ZUO Yong, LI Qi
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