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Journal of Integrative Plant Biology 2008年第12期50卷 1570-1579页

作者： Junyan Zhang Genwei Cheng feihai yu Norbert Kraiuchi Mai-He Li Institute of Mountain Hazards and Environment the Chinese Academy of Sciences Chengdu 610041 China Swiss Federal Research Institute WSL CH-8903 Birmensdorf Switzerland Department of Biology Acadia University Nova Scotia B4P 2R6 Canada Institute of Botany the Chinese Academy of Sciences Beijing 100093 China

How plant competition varies across environmental gradients has been a long debate among ecologists. We conducted a growth chamber experiment to determine the intensity and importance of competition for plants grown in changed environmental conditions. Festuca rubra and Trifolium pratense were grown in monoculture and in two- and/or three- species mixtures under three environmental treatments. The measured competitive variations in terms of growth （height and biomass） were species-dependent. Competition intensity for Festuca increased with decreased productivity, whilst competition importance displayed a humpback response. However, significant response was detected in neither competition intensity nor importance for Trifolium. Intensity and importance of competition followed different response patterns, suggesting that they may not be correlated along an environmental gradient. The biological and physiological variables of plants play an important role to determine the interspecific competition associated with competition intensity and importance. However, the competitive feature can be modified by multiple environmental changes which may increase or hinder how competitive a plant is.

关键词： climate change competition importance competition intensity interspecific interaction species-dependent variation.

How Physical Disturbance and Nitrogen Addition Affect the Soil Carbon Decomposition?

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Phyton-International Journal of Experimental Botany 2022年第9期91卷 2087-2097页

作者： Muhammad Junaid Nazir Xiuwei Zhang Daolin Du feihai yu Institute of Wetland Ecology&Clone Ecology/Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation Taizhou UniversityTaizhou318000China College of the Environment&Safety Engineering Jiangsu UniversityZhenjiang212013China

The decomposition of soil organic carbon(SOC)plays a critical role in regulating atmospheric CO_(2)concentrations and climate ***,the mechanisms and factors controlling SOC decomposition are still not fully ***,we conducted a 60 days incubation experiment to test the effects of physical disturbance and nitrogen(N)addition on SOC decomposition.N addition increased the concentration of NO3-by 51%in the soil,but had little effect on the concentration of NH4+.N addition inhibited SOC decomposition,but such an effect differed between disturbed and undisturbed *** disturbed and undisturbed soils,application of N decreased SOC decomposition by 37%and 15%,*** possible explanation is that extra N input suppressed microbial N mining and/or increased the stability of soil organic matter by promoting the formation of soil aggregates and incorporating part of the inorganic N into organic matter,and consequently decreased microbial mineralization of soil organic *** disturbance intensified the inhibition of N on SOC decomposition,likely because physical disturbance allowed the added N to be better exposed to soil microbes and consequently increased the availability of added *** conclude that physical disturbance and N play important roles in modulating the stability of SOC.

关键词： Soil organic matter physical disturbance microbial N mining microbial biomass carbon N availability

Responses of Hedysarum Laeve,a guerrilla clonal semi-shrub in the Mu Us Sandland,to local sand burial

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Frontiers in Biology 2007年第4期2卷 431-436页

作者： LIU Fenghong YE Xuehua yu feihai DONG Ming Key Laboratory of Quantitative Vegetation Ecology Institute of BotanyChinese Academy of SciencesBeijing 100093China Graduate University of Chinese Academy of Sciences Beijing 100039China

In arid and semi-arid inland deserts,one of the environmental stresses for plants is recurrent sand burial,which can influence the physical and biotic microenviron-ments of the plants and *** studies have shown that different levels of sand burial have different effects on *** sand burial could increase the height increment,leaf biomass and the number of new ramets of the plants while heavy sand burial could impair the growth of the plants and even decrease their chances of *** other words,below a certain threshold level of burial,the growth of plants is stimulated probably because of multiple ***,as the level of burial increases,the positive response starts to decline until it becomes a negative *** and semi-arid inland deserts are frequently colonized and stabilized by many rhizomatous clonal *** physiological integration often helps clonal plants buffer local environmen-tal stress encountered by ramets.A rhizomatous clonal semi-shrub,Hedysarum laeve(***),is the dominant plant species and important for vegetation restoration in the Mu Us *** investigate whether clonal integration can increase the threshold of sand burial and help rhizomatous *** tolerate heavy sand burial,we conducted a field *** results showed that slight sand burial could accelerate ramet growth and enhance leaf biomass,stem bio-mass and shoot biomass,while heavy sand burial reducesed the biomass of the plant and impairs survival and growth of the *** integration increased the threshold of sand *** heavy sand burial,ramets connected to other ramets not buried in sand were more in terms of height increment,stem biomass,leaf biomass and shoot biomass compared to the ramets encountering sand burial but disconnected from other *** suggested that clonal physiological integration could help *** ramets tolerate relatively heavy sand *** also discussed that clonal integration plays a ro

关键词： Clonal integration Hedysarum laeve Mu Su sandland Sand burial

Effects of Soil Nutrient Heterogeneity and Earthworms on Aboveground Biomass of Experimental Plant Communities

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Phyton-International Journal of Experimental Botany 2021年第4期90卷 1259-1271页

作者： Simei Yao yu Jin Limin Zhang Ningfei Lei Wei Xue Jinsong Chen Qian Zhang feihai yu College of the Environment Chengdu University of TechnologyChengdu610059China Institute of Wetland Ecology&Clone Ecology Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and ConservationTaizhou UniversityTaizhou318000China College of Life Science Sichuan Normal UniversityChengdu610101China

Soil nutrients are commonly heterogeneously distributed and earthworms are one of the most common soil *** effects of both soil nutrient heterogeneity and earthworms have been well studied,their interactive effect on plant community productivity has rarely been *** a greenhouse experiment,we constructed experimental plant communities by sowing seed mixtures of four grasses,two legumes and two forbs in either a heterogeneous soil consisting of low and high nutrient soil patches or a homogeneous soil where the low and high nutrient soil patches were evenly *** earthworm Eisenia fetida was either added to these soils or *** biomass of the whole communities,grasses and legumes did not differ between the homogeneous and heterogeneous soils or between the soils with and without ***,soil nutrient heterogeneity reduced aboveground biomass of forbs,and such an effect did not interact with *** response to soil heterogeneity and earthworms,biomass ratio of the three functional groups showed similar patterns as that of their *** the patch level,aboveground biomass of the whole community,grasses and legumes were greater in the high than in the low nutrient soil patches within the heterogeneous soil.A similar pattern was found for the forbs,but this was only true in the absence of *** results suggest that soil nutrient heterogeneity and earthworms may not influence aboveground biomass of plant communities,despite the fact that they may modify the growth of certain plant functional groups within the community.

关键词： Environmental heterogeneity foraging response functional group plant-animal interaction yield

Modification of Hydration Resistance of SrO with ZrO_(2) Addition

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China's Refractories 2022年第4期31卷 16-21页

作者： CHEN Guangyao LIU Jian yu feihai HOU Xiao FENG Qisheng PENG Jun WANG Enhui HOU Xinmei LU Xionggang LI Chonghe State Key Laboratory of Advanced Special Steel&Shanghai Key Laboratory of Advanced Ferrometallurgy&School of Materials Science and Engineering Shanghai UniversityShanghai 200072China Shanghai Special Casting Engineering Technology Research Center Shanghai 201605China China Northwest Architecture Design and Research Institute Co. LtdXi’an 710018China Beijing Advanced Innovation Center for Materials Genome Engineering Collaborative Innovation Center of Steel TechnologyUniversity of Science and Technology BeijingBeijing 100083China

Considering the high melting point and high stability of SrO,it has potential applications in the field of the preparation of titanium *** improve the hydration resistance,SrO samples with different ZrO_(2)additions were fabricated after firing at 1750℃for 6 *** phase,the microstructure,and the hydration resistance of the samples were *** results show that the sample with 33 mol%ZrO_(2)addition possesses good hydration resistance with the mass gain after hydration for 13 days of less than 0.42 mass%.The SrO crucible with 33 mol%ZrO_(2)addition does not react with TiNi alloy melt during melting,which provides a support for searching new refractories with good hydration resistance for induction melting titanium alloys.

关键词： strontium oxide hydration resistance titanium-nickel alloy induction melting

Relationships between Genetic Diversity of Vascular Plant Species and Climate Factors

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Journal of Resources and Ecology 2018年第6期9卷 663-672页

作者： TAN Jingfang WAN Jizhong LUO Fangli yu feihai School of Nature Conservation Beijing Forestry UniversityBeijing 100083China Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation Taizhou UniversityTaizhouZhejiang 318000China

Genetic diversity is crucial for plants to respond to global climate change,and exploring relationships between genetic diversity and climatic factors may help predict how global climate change will shape the genetic diversity of plants in the *** far,however,the extent and magnitude of the impact of climatic factors on the genetic diversity of plants has not been *** collected data from 68published papers on two widely used measures of genetic diversity of populations (average expected heterozygosity (He)and average observed heterozygosity (Ho))and on localities of populations of 79vascular plants,and extracted data on 19 climatic factors from *** then explored the relationships between measures of genetic diversity and climatic factors using linear *** of plant populations was significantly correlated with climatic factors in 58.7%(44)of the 75 species that used He as a measure of genetic diversity,and Ho was correlated with climatic factors in 65.1% (41)of the 63 species that used this genetic diversity *** general,Mean Temperature of Wettest Quarter, Precipitation Seasonality,Precipitation of Driest Quarter and Temperature Seasonality played a vital role in shaping He,and Ho was mostly correlated with Precipitation of Warmest Quarter,Mean Temperature of Wettest Quarter, Precipitation of Driest Quarter and Precipitation of Driest ***,the proportion of the significant correlations between genetic diversity of populations and climatic factors was higher for woody than for herbaceous species, and different climatic factors played different roles in shaping genetic diversity of these two growth *** results suggest that climate may play an important role in shaping genetic diversity of plant populations,that climatic change in the future may alter genetic diversity of plants,and that genetic diversity of different plant forms may respond to climatic change differently.

关键词： average expected heterozygosity average observed heterozygosity climate change growth form genetic variation SSR

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武术教学对大学生身心健康的促进作用研究

体育科技文献通报 2017年第11期25卷 83-84,94页

作者：余飞海南阳医学高等专科学校体育教学部河南南阳473000

武术在强身健体、调节心境方面的作用得到了广泛的认同。本研究采用实验法对武术教学在大学生身心健康方面的促进作用进行检验,选取21名大二学生进行为期15周的武术课程教学,在实验前后分别对被试的肺活量、握力、立定跳远、台阶试验等... 详细信息

武术在强身健体、调节心境方面的作用得到了广泛的认同。本研究采用实验法对武术教学在大学生身心健康方面的促进作用进行检验,选取21名大二学生进行为期15周的武术课程教学,在实验前后分别对被试的肺活量、握力、立定跳远、台阶试验等体质指标进行测量,采用《症状自评量表SCL-90》对被试实验前后心理健康指标进行测量。结果表明:在实验前后男女大学生的各项体质指标均显著提高,其焦虑、抑郁、强迫症状、躯体化上的得分武术教学后相比武术教学前明显下降,说明武术教学对大学生身心健康具有积极的促进作用。

关键词：武术教学大学生身心健康作用

根茎型植物扁秆荆三棱对光照强度和养分水平的生长响应及资源分配策略

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生态学报 2016年第24期36卷 8091-8101页

作者：王沫竹董必成李红丽于飞海北京林业大学自然保护区学院北京100083

自然界中光照和养分因子常存在时空变化,对植物造成选择压力。克隆植物可通过克隆生长和生物量分配的可塑性来适应环境变化。尽管一些研究关注了克隆植物对光照和养分因子的生长响应,但尚未深入全面了解克隆植物对光照和养分资源投资的... 详细信息

自然界中光照和养分因子常存在时空变化,对植物造成选择压力。克隆植物可通过克隆生长和生物量分配的可塑性来适应环境变化。尽管一些研究关注了克隆植物对光照和养分因子的生长响应,但尚未深入全面了解克隆植物对光照和养分资源投资的分配策略。以根茎型草本克隆植物扁秆荆三棱(Bolboschoenus planiculmis)为研究对象,在温室实验中,将其独立分株种植于由2种光照强度(光照和遮阴)和4种养分水平(对照、低养分、中养分和高养分)交叉组成的8种处理组合中,研究了光照和养分对其生长繁殖及资源贮存策略的影响。结果表明,扁秆荆三棱的生长、无性繁殖及资源贮存性状均受到光照强度的显著影响,在遮阴条件下各生长繁殖性状指标被抑制。且构件的数目、长度等特征对养分差异的可塑性响应先于其生物量积累特征。在光照条件下,高养分处理的总生物量、叶片数、总根茎分株数、长根茎分株数、总根茎长、芽长度、芽数量等指标大于其他养分处理,而在遮阴条件下,其在不同养分处理间无显著差异,表明光照条件可影响养分对扁秆荆三棱可塑性的作用,且高营养水平不能补偿由于光照不足而导致的生长能力下降。光照强度显著影响了总根茎、总球茎及大、中、小球茎的生物量分配,遮阴条件下,总生物量减少了对地下部分根茎和球茎的分配,并将有限的生物量优先分配给小球茎。总根茎的生物量分配未对养分发生可塑性反应,而随着养分增加,总球茎分配下降,说明在养分受限的环境中球茎的贮存功能可缓冲资源缺乏对植物生长的影响。在相同条件下,根茎生物量对长根茎的分配显著大于短根茎,以保持较高的繁殖能力;而总球茎对有分株球茎的生物量分配小于无分株球茎,表明扁秆荆三棱总球茎对贮存功能的分配优先于繁殖功能。研究为进一步理解根茎型克隆植物对光强及基质养分环境变化的生态适应提供了依据。

关键词：生物量分配克隆植物球茎构件等级可塑性根茎

青藏高原高寒草甸门源草原毛虫取食偏好及其与植物C、N含量的关系

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生态学报 2016年第8期36卷 2319-2326页

作者：郑莉莉宋明华尹谭凤于飞海北京林业大学自然保护区学院北京100083 中国科学院地理科学与资源研究所生态网络观测与模拟重点实验室北京100101

草食性昆虫对不同植物物种的取食存在偏好,这种取食偏好可能受其自身对蛋白质和碳水化合物的需求及二者平衡的调节。以青藏高原高寒矮嵩草草甸31种常见植物及门源草原毛虫为对象,通过饲喂实验,研究了草食性昆虫对不同物种和不同功能群... 详细信息

草食性昆虫对不同植物物种的取食存在偏好,这种取食偏好可能受其自身对蛋白质和碳水化合物的需求及二者平衡的调节。以青藏高原高寒矮嵩草草甸31种常见植物及门源草原毛虫为对象,通过饲喂实验,研究了草食性昆虫对不同物种和不同功能群植物的取食偏好,及其与植物叶片C、N含量和C∶N之间的关系。在31种植物中,门源草原毛虫对19种植物进行了取食,尤其对矮嵩草、红棕薹草、藏异燕麦和垂穗披碱草四种植物表现出强烈的取食偏好,而对另外12种植物未进行任何取食。在物种水平上,门源草原毛虫取食量与植物叶片N含量呈显著负相关,与叶片C∶N呈正相关。从功能群水平上看,门源草原毛虫对莎草类的取食偏好最大,而对豆科植物取食偏好最低;相应地,莎草类植物叶片N含量最低、C∶N最高,而豆科植物叶片N含量最高、C∶N最低。因此,即使在土壤有效氮匮乏、植物生长受氮素限制的高寒草甸生态系统,植物体内N含量的增加也可能不利于草食性昆虫的取食。门源草原毛虫对优势植物矮嵩草和垂穗披碱草的取食对高寒矮嵩草草甸物种共存和生物多样性维持可能具有重要的作用。

关键词：草食性昆虫适口性植物功能群取食行为高山植物幼虫

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植物响应对风致机械刺激研究进展

生态学报 2010年第3期30卷 794-800页

作者：王艳红何维明于飞海江洪余树全董鸣中国科学院植物研究所植被与环境变化国家重点实验室北京100093 浙江林学院国际空间生态与生态系统生态研究中心杭州311300

机械刺激在自然界中是无处不在的。研究机械刺激的生态学效应有助于将风的直接效应与间接效应区别开来。机械刺激与植物生长关系的研究已经成为近年来植物生态学与植物力学研究的热点之一。从机械刺激的生态学效应及其作用机理两方面综... 详细信息

机械刺激在自然界中是无处不在的。研究机械刺激的生态学效应有助于将风的直接效应与间接效应区别开来。机械刺激与植物生长关系的研究已经成为近年来植物生态学与植物力学研究的热点之一。从机械刺激的生态学效应及其作用机理两方面综述了国内外研究进展,为深入系统地研究植物对风区等多机械刺激干扰生境的适应性策略做了理论上的概括。同时,为这一理论的应用及未来亟待解决的主要问题进行了总结。

关键词：机械刺激生物学效应作用机理风