نتایج جستجو برای: aboveground weight

تعداد نتایج: 353811  

Journal: :Trends in ecology & evolution 2005
Richard D Bardgett William D Bowman Ruediger Kaufmann Steve K Schmidt

Ecologists are becoming increasingly aware of the role of aboveground-belowground relationships in controlling ecosystem processes and properties. Here, we review recent studies that show that relationships between aboveground and belowground communities operate over a hierarchy of temporal scales, ranging from days to seasons, to millennia, with differing consequences for ecosystem structure a...

2011
Jarrod D. Blue Aimée T. Classen Nathan J. Sanders

Nutrient availability and herbivory can regulate primary production in ecosystems, but little is known about how, or whether, they may interact with one another. Here, we investigate how nitrogen availability and insect herbivory interact to alter aboveground and belowground plant community biomass in an old-Weld ecosystem. In 2004, we established 36 experimental plots in which we manipulated s...

2013
Simon Scheiter Steven I. Higgins

Aboveground and belowground biomass compartments of vegetation fulfil different functions and they are coupled by complex interactions. These compartments exchange water, carbon and nutrients and the belowground biomass compartment has the capacity to buffer vegetation dynamics when aboveground biomass is removed by disturbances such as herbivory or fire. However, despite their importance, root...

One of the most important limiting factors of crop growth in the arid and semi-arid regions is water deficit. Mycorrhizal fungi is one of the most important microorganisms in the rhizosphere. The effects of these fungi apply via changes on some of the characteristics of roots and nutrients uptake in host plants under drought conditions. In order to evaluate the effect of arbuscular mycorrhizal ...

2017
Qing Zhang Alexander Buyantuev Frank Yonghong Li Lin Jiang Jianming Niu Yong Ding Sarula Kang Wenjing Ma

The relationship between biodiversity and productivity has been a hot topic in ecology. However, the relative importance of taxonomic diversity and functional characteristics (including functional dominance and functional diversity) in maintaining community productivity and the underlying mechanisms (including selection and complementarity effects) of the relationship between diversity and comm...

2016
Pernilla Borgström Joachim Strengbom Maria Viketoft Riccardo Bommarco

Insect herbivores can shift the composition of a plant community, but the mechanism underlying such shifts remains largely unexplored. A possibility is that insects alter the competitive symmetry between plant species. The effect of herbivory on competition likely depends on whether the plants are subjected to aboveground or belowground herbivory or both, and also depends on soil nitrogen level...

2017
Daniela HOFFMANN Peter SCHAUSBERGER

Research on aboveground-belowground interactions has recently experienced a boost. In spite of the relative prosperity of scientific literature featuring aboveground herbivorous arthropods involved in abovegroundbelowground interactions, mites have so far been under-represented. To stimulate work with mites in this area, we summarize existing research on plant-mediated interactions of abovegrou...

2005
Shiqiang Wan Dafeng Hui Linda Wallace Yiqi Luo

[1] This study was conducted to examine direct and indirect impacts of global warming on carbon processes in a tallgrass prairie in the U.S. Great Plains. Infrared radiators were used to simulate global warming, and clipping was used to mimic hay mowing. Experimental warming caused significant increases in green biomass in spring and autumn and total biomass in summer on most of the measuring d...

Journal: :PloS one 2015
Sebastian Doetterl Elizabeth Kearsley Marijn Bauters Koen Hufkens Janvier Lisingo Geert Baert Hans Verbeeck Pascal Boeckx

BACKGROUND African tropical rainforests are one of the most important hotspots to look for changes in the upcoming decades when it comes to C storage and release. The focus of studying C dynamics in these systems lies traditionally on living aboveground biomass. Belowground soil organic carbon stocks have received little attention and estimates of the size, controls and distribution of soil org...

Journal: :The Horticulture Journal 2021

To improve the yield of sweet peppers in Japan, we investigated relationships between plant growth characteristics and fruit yield, with a particular focus on dry matter production. Fruit fresh weight (i.e., yield) was highly correlated weight. Aboveground production both light use efficiency intercepted photosynthetically active radiation. Although number fruits set ratio, no correlation found...

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