نتایج جستجو برای: annual forbs

تعداد نتایج: 110865  

Journal: :Journal of Plant Ecology 2023

Abstract Expansion of global trade and acceleration climate change dramatically promote plant invasions. As a result, large number habitats harbor multiple invasive species. However, patterns interactions the drivers mediating their remain unclear. In this greenhouse, potted study, we tested impacts 18 species on growth target invader Erigeron canadensis which is dominant in central China. Neig...

Journal: :E3S web of conferences 2021

The paper presents data on the indicators of livestock production, number farm animals and poultry in Tyumen region. characteristics significance near-village forage lands are given. studied assigned to forest-steppe lowland latitudinal-zonal area Kurgan province contain valuable species herbs: Calamagrostis epigejos, Bromopsis inermis, Festuca pratensis, Vicia villosa Roth, Trifolium rubens L....

Journal: :Sustainability 2021

Sustainable intensification will require the development of new management systems to support global food demands, whilst conserving integrity ecosystem functions. Here, we test and identify strategies maintain or enhance agricultural production in grasslands simultaneously supporting provision multiple services. Over four years, investigated how establishment three plant functional groups (gra...

Journal: :مرتع و آبخیزداری 0
طاهره صادقی شاهرخت کارشناس ارشد مرتع داری، دانشگاه فردوسی مشهد محمد جنگجو دانشیار گروه مرتع و آبخیزداری دانشکده منابع طبیعی و محیط زیست، دانشگاه فردوسی مشهد منصور مصداقی استاد مدعو، دانشکده منابع طبیعی و محیط زیست دانشگاه فردوسی مشهد

rangeland shrubs may provide mechanical facilitation on their understory plants, by protecting themagainst the livestock grazing. however, such a facilitation effect may vary depending on the rangelandutilization rate. in a field research, mechanical facilitation of rangeland shrubs was compared in ahighly grazed, a moderately grazed and an enclosure site; in an arid rangeland, kakhak, gonabad,...

2012
Yingxin Huang Xueyong Zhao Daowei Zhou Hongxiang Zhang Wei Zheng

We compared the phenotypic plasticity of two early successional forbs of nutrient-poor mobile dunes (Agriophyllum squarrosum and Corispermum macrocarpum) and two later successional forbs (weeds) of stabilized, higher nutrient dunes and cropland (Chenopodium acuminatum and Salsola collina) to variations in environmental factors. A controlled (including soil nutrients, water, and population densi...

2018
Ondřej CUDLÍN Josef HAKL Michal HEJCMAN Pavel CUDLÍN

Cudlín O., Hakl J., Hejcman M., Cudlín P. (2018): The use of compressed height to estimate the yield of a differently fertilized meadow. Plant Soil Environ., 64: 76–81. Monitoring of grassland dry matter yield (DMY) is important for the economy and ecosystem management, but it is a time-consuming process. Calculating the correlation between compressed height (CH) and DMY is a faster way to esti...

Journal: :Biology letters 2015
Zhaorong Mi Yuanyuan Huang Huijie Gan Wenjia Zhou Dan F B Flynn Jin-Sheng He

The dynamics of leaf nitrogen (N) and phosphorus (P) have been intensively explored in short-term experiments, but rarely at longer timescales. Here, we investigated leaf N : P stoichiometry over a 27-year interval in an Inner Mongolia grassland by comparing leaf N : P concentration of 2006 with that of 1979. Across 80 species, both leaf N and P increased, but the increase in leaf N lagged behi...

2016
Jeffrey S. Ward Scott C. Williams Megan A. Linske Brian J. Palik

Both invasive species and deer herbivory are recognized as locally important drivers of plant community dynamics. However, few studies have examined whether their effects are synergistic, additive, or antagonistic. At three study areas in southern New England, we examined the interaction of white-tailed deer (Odocoileus virginianus Zimmermann) herbivory and three levels of invasive shrub contro...

Journal: :Ecological applications : a publication of the Ecological Society of America 2009
Matthew J Rinella Bruce D Maxwell Peter K Fay Theodore Weaver Roger L Sheley

Ecosystem managers face a difficult decision when managing invasive species. If they use aggressive practices to reduce invader abundances, they will likely reduce invaders' competitive impacts on natives. But it is often difficult or impossible to reduce invaders without damaging natives. So a critical question becomes: Which is worse for native biota, invaders or things done to control invade...

2015
Jacob N Barney Daniel R Tekiela Maria Noelia Barrios-Garcia Romina D Dimarco Ruth A Hufbauer Peter Leipzig-Scott Martin A Nuñez Aníbal Pauchard Petr Pyšek Michaela Vítková Bruce D Maxwell

Terrestrial invasive plants are a global problem and are becoming ubiquitous components of most ecosystems. They are implicated in altering disturbance regimes, reducing biodiversity, and changing ecosystem function, sometimes in profound and irreversible ways. However, the ecological impacts of most invasive plants have not been studied experimentally, and most research to date focuses on few ...

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