scholarly journals Diversity‐dependent plant–soil feedbacks underlie long‐term plant diversity effects on primary productivity

Ecosphere ◽  
2019 ◽  
Vol 10 (4) ◽  
pp. e02704 ◽  
Author(s):  
Nathaly R. Guerrero‐Ramírez ◽  
Peter B. Reich ◽  
Cameron Wagg ◽  
Marcel Ciobanu ◽  
Nico Eisenhauer
Keyword(s):  
Plant Diversity ◽  
Primary Productivity ◽  
Plant Soil ◽  
Diversity Effects

scholarly journals Resource enrichment combined with biomass removal maintains plant diversity and community stability in a long-term grazed grassland

2020 ◽  
Vol 13 (5) ◽  
pp. 611-620
Author(s):  
Feng-Wei Xu ◽  
Jian-Jun Li ◽  
Li-Ji Wu ◽  
Xiao-Ming Lu ◽  
Wen Xing ◽  
...  
Keyword(s):  
Species Richness ◽  
Species Diversity ◽  
Plant Diversity ◽  
Primary Productivity ◽  
Management Practices ◽  
Light Exposure ◽  
Community Stability ◽  
Water Addition ◽  
Biomass Removal

Abstract Aims Long-term heavy grazing reduces plant diversity and ecosystem function by intensifying nitrogen (N) and water limitation. In contrast, the absence of biomass removal can cause species loss by elevating light competition and weakening community stability, which is exacerbated by N and water enrichment. Hence, how to maintain species diversity and community stability is still a huge challenge for sustainable management of worldwide grasslands. Methods We conducted a 4-year manipulated experiment in six long-term grazing blocks to explore combination of resource additions and biomass removal (increased water, N and light availability) on species richness and community stability in semiarid grasslands of Inner Mongolia, China. Important Findings In all blocks treated with the combination of resource additions and biomass removal, primary productivity increased and species richness and community stability were maintained over 4 years of experiment. At both species and plant functional group (PFG) levels, the aboveground biomass of treated plants remained temporally stable in treatments with the combination of N and/or water addition and biomass removal. The maintenance of species richness was primarily caused by the biomass removal, which could increase the amount of light exposure for grasses under resource enrichment. Both species asynchrony and stability of PFGs contributed to the high temporal stability observed in these communities. Our results indicate that management practices of combined resource enrichment with biomass removal, such as grazing or mowing, could not only enhance primary productivity but also maintain plant species diversity, species asynchrony and community stability. Furthermore, as overgrazing-induced degradation and resource enrichment-induced biodiversity loss continue to be major problems worldwide, our findings have important implications for adaptive management in semiarid grasslands and beyond.

scholarly journals Food webs obscure the strength of plant diversity effects on primary productivity

2017 ◽  
Vol 20 (4) ◽  
pp. 505-512 ◽  
Author(s):  
Eric W. Seabloom ◽  
Linda Kinkel ◽  
Elizabeth T. Borer ◽  
Yann Hautier ◽  
Rebecca A. Montgomery ◽  
...  
Keyword(s):  
Food Webs ◽  
Plant Diversity ◽  
Primary Productivity ◽  
Diversity Effects

scholarly journals Effects and pathways of long-term nitrogen addition on plant diversity and primary productivity in a typical steppe

2020 ◽  
Vol 44 (1) ◽  
pp. 22-32
Author(s):  
Yu-Bing WANG ◽  
Yi-Han SUN ◽  
Wei DING ◽  
En-Tao ZHANG ◽  
Wen-Huai LI ◽  
...  
Keyword(s):  
Plant Diversity ◽  
Primary Productivity ◽  
Nitrogen Addition ◽  
Typical Steppe

scholarly journals Diversity-dependent plant-soil feedbacks underlie long-term plant diversity effects on primary productivity

2018 ◽  
Author(s):  
Nathaly R. Guerrero-Ramírez ◽  
Peter B. Reich ◽  
Cameron Wagg ◽  
Marcel Ciobanu ◽  
Nico Eisenhauer
Keyword(s):  
Plant Communities ◽  
Plant Diversity ◽  
Ecosystem Functioning ◽  
Nitrogen Availability ◽  
Soil Nitrogen Availability ◽  
Plant Soil ◽  
Soil Legacy ◽  
Main Driver ◽  
Underlying Mechanisms ◽  
Diversity Effects

AbstractAlthough diversity-dependent plant-soil feedbacks (PSFs) may contribute significantly to plant diversity effects on ecosystem functioning, the influence of underlying abiotic and biotic mechanistic pathways have been little explored to date. Here, we assessed such pathways with a PSF experiment using soil conditioned for ≥12 years from two grassland biodiversity experiments. Model plant communities differing in diversity were grown in soils conditioned by plant communities with either low- or high-diversity (soil history). Our results reveal that plant diversity can modify plant productivity through both diversity-mediated plant-plant and plant-soil interactions, with the main driver (current plant diversity or soil history) differing with experimental context. The underlying mechanisms of PSFs were explained to a significant extent by both abiotic and biotic pathways (specifically, nematode richness and soil nitrogen availability). Thus, effects of plant diversity loss on ecosystem functioning may persist or even increase over time because of biotic and abiotic soil legacy effects.

scholarly journals Plant diversity effects on soil food webs are stronger than those of elevated CO2 and N deposition in a long-term grassland experiment

2013 ◽  
Vol 110 (17) ◽  
pp. 6889-6894 ◽  
Author(s):  
N. Eisenhauer ◽  
T. Dobies ◽  
S. Cesarz ◽  
S. E. Hobbie ◽  
R. J. Meyer ◽  
...  
Keyword(s):  
Food Webs ◽  
Elevated Co2 ◽  
Plant Diversity ◽  
N Deposition ◽  
Soil Food Webs ◽  
Diversity Effects

scholarly journals Rapid transfer of photosynthetic carbon through the plant-soil system in differently managed grasslands

2011 ◽  
Vol 8 (1) ◽  
pp. 921-940 ◽  
Author(s):  
G. B. De Deyn ◽  
H. Quirk ◽  
S. Oakley ◽  
N. Ostle ◽  
R. D. Bardgett
Keyword(s):  
Plant Species ◽  
Plant Diversity ◽  
Soil Microbes ◽  
Soil Microbial Communities ◽  
Short Term ◽  
Soil Microbial ◽  
Plant Soil ◽  
C Cycling ◽  
Rapid Transfer

Abstract. Plant-soil interactions are central to short-term carbon (C) cycling through the rapid transfer of recently assimilated C from plant roots to soil biota. In grassland ecosystems, changes in C cycling are likely to be influenced by land use and management that changes vegetation and the associated soil microbial communities. Here we tested whether changes in grassland vegetation composition resulting from management for plant diversity influences short-term rates of C assimilation, retention and transfer from plants to soil microbes. To do this, we used an in situ 13C-CO2 pulse-labeling approach to measure differential C uptake among different plant species and the transfer of the plant-derived 13C to key groups of soil microbiota across selected treatments of a long-term plant diversity grassland restoration experiment. Results showed that plant taxa differed markedly in the rate of 13C assimilation and retention: uptake was greatest and retention lowest in Ranunculus repens, and assimilation was least and retained longest in mosses. Incorporation of recent plant-derived 13C was maximal in all microbial phosopholipid fatty acid (PLFA) markers at 24 h after labeling. The greatest incorporation of 13C was in the PLFA 16:1ω5, a marker for arbuscular mycorrhizal fungi (AMF), while after one week most 13C was retained in the PLFA 18:2ω6,9 which is indicative of assimilation of plant-derived 13C by saprophytic fungi. Our results of 13C assimilation, transfer and retention within plant species and soil microbes were consistent across management treatments. Overall, our findings suggest that changes in vegetation and soil microbial composition resulting from differences in long-term grassland management will affect short-term cycling of photosynthetic C, but that restoration management does not alter the short-term C uptake and transfer within plant species and within key groups of soil microbes. Moreover, across all treatments we found that plant-derived C is rapidly transferred specifically to AMF and decomposer fungi, indicating their consistent key role in the cycling of recent plant derived C.

scholarly journals Stoichiometric traits (N:P) of understory plants contribute to reductions in plant diversity following long‐term nitrogen addition in subtropical forest

2021 ◽  
Author(s):  
Jianping Wu ◽  
Fangfang Shen ◽  
Jill Thompson ◽  
Wenfei Liu ◽  
Honglang Duan ◽  
...  
Keyword(s):  
Plant Diversity ◽  
Nitrogen Addition ◽  
Subtropical Forest ◽  
Understory Plants ◽  
Stoichiometric Traits

scholarly journals Multiple Evidence for Climate Patterns Influencing Ecosystem Productivity across Spatial Gradients in the Venice Lagoon

2021 ◽  
Vol 9 (4) ◽  
pp. 363
Author(s):  
Camilla Bertolini ◽  
Edouard Royer ◽  
Roberto Pastres
Keyword(s):  
Time Series ◽  
Primary Productivity ◽  
Clustering Analysis ◽  
Venice Lagoon ◽  
Spatial Effects ◽  
Spatial Gradients ◽  
Climate Forecasting ◽  
Oxygen Production Rate ◽  
Temporal And Spatial

Effects of climatic changes in transitional ecosystems are often not linear, with some areas likely experiencing faster or more intense responses, which something important to consider in the perspective of climate forecasting. In this study of the Venice lagoon, time series of the past decade were used, and primary productivity was estimated from hourly oxygen data using a published model. Temporal and spatial patterns of water temperature, salinity and productivity time series were identified by applying clustering analysis. Phytoplankton and nutrient data from long-term surveys were correlated to primary productivity model outputs. pmax, the maximum oxygen production rate in a given day, was found to positively correlate with plankton variables measured in surveys. Clustering analysis showed the occurrence of summer heatwaves in 2008, 2013, 2015 and 2018 and three warm prolonged summers (2012, 2017, 2019) coincided with lower summer pmax values. Spatial effects in terms of temperature were found with segregation between confined and open areas, although the patterns varied from year to year. Production and respiration differences showed that the lagoon, despite seasonality, was overall heterotrophic, with internal water bodies having greater values of heterotrophy. Warm, dry years with high salinity had lower degrees of summer autotrophy.

The long-term effects of monoculture maize cultivation on plant diversity

2021 ◽  
Vol 50 (4) ◽  
pp. 397-408
Author(s):  
Anneliese Fuchs ◽  
Vanessa Berger ◽  
Klaus Steinbauer ◽  
Tobias Köstl ◽  
Daniel Wuttej ◽  
...  
Keyword(s):  
Plant Diversity ◽  
Long Term Effects ◽  
Maize Cultivation

scholarly journals A Contribution to the flora of Rajouri and Poonch districts in the Pir Panjal Himalaya (Jammu & Kashmir), India

Check List ◽  
2014 ◽  
Vol 10 (2) ◽  
pp. 317 ◽  
Author(s):  
Gh. Hassan Dar ◽  
Akhtar H. Malik ◽  
Anzar A. Khuroo
Keyword(s):  
Plant Species ◽  
Plant Diversity ◽  
Vascular Plant ◽  
Sustainable Use ◽  
Scientific Data ◽  
Current Paper ◽  
Himalayan Region ◽  
Plant Resources ◽  
Jammu And Kashmir

The current paper provides a taxonomic inventory of the vascular plant species collected by the authors during the last two decades from the Rajouri and Poonch districts, located along the Pir Panjal range in the Indian Himalayan State of Jammu and Kashmir. The inventory records a total of 352 species, which belong to 270 genera in 83 families. Of the total taxa, the angiosperms are represented by 331 species in 253 genera and 77 families; gymnosperms by 12 species in 9 genera and 3 families; and pteridophytes by 9 species in 7 genera and 3 families. Asteraceae is the largest family, contributing 42 species; while Artemisia is the largest genus, with 5 species. The inventory is expected to provide baseline scientific data for further studies on plant diversity in these two border districts, and can be used to facilitate the long-term conservation and sustainable use of plant resources in this Himalayan region.

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