scholarly journals Warming effects on grassland productivity depend on plant diversity

2021 ◽  
Author(s):  
Junjiong Shao ◽  
Xuhui Zhou ◽  
Kees Jan Groenigen ◽  
Guiyao Zhou ◽  
Huimin Zhou ◽  
...  
Keyword(s):  
Plant Diversity ◽  
Grassland Productivity

GENERAL STABILIZING EFFECTS OF PLANT DIVERSITY ON GRASSLAND PRODUCTIVITY AT MULTIPLE SITES THROUGH POPULATION ASYNCHRONY AND OVERYIELDING

Ecology ◽  
2010 ◽  
pp. 100413130749096 ◽  
Author(s):  
Andy Hector ◽  
Yann Hautier ◽  
Philippe Saner ◽  
Luca Wacker ◽  
Robert Bagchi ◽  
...  
Keyword(s):  
Plant Diversity ◽  
Grassland Productivity

Grazing induced changes in plant diversity is a critical factor controlling grassland productivity in the Desert Steppe, Northern China

2018 ◽  
Vol 265 ◽  
pp. 73-83 ◽  
Author(s):  
Ruiyang Zhang ◽  
Zhongwu Wang ◽  
Guodong Han ◽  
Michael P. Schellenberg ◽  
Qian Wu ◽  
...  
Keyword(s):  
Plant Diversity ◽  
Critical Factor ◽  
Northern China ◽  
Desert Steppe ◽  
Grassland Productivity ◽  
Induced Changes

scholarly journals General destabilizing effects of eutrophication on grassland productivity at multiple spatial scales

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Yann Hautier ◽  
Pengfei Zhang ◽  
Michel Loreau ◽  
Kevin R. Wilcox ◽  
Eric W. Seabloom ◽  
...  
Keyword(s):  
Plant Species ◽  
Plant Diversity ◽  
Spatial Scales ◽  
Temporal Stability ◽  
Local Communities ◽  
Ecological Communities ◽  
Multiple Spatial Scales ◽  
Grassland Productivity ◽  
The Relationship ◽  
Positive Effect

Abstract Eutrophication is a widespread environmental change that usually reduces the stabilizing effect of plant diversity on productivity in local communities. Whether this effect is scale dependent remains to be elucidated. Here, we determine the relationship between plant diversity and temporal stability of productivity for 243 plant communities from 42 grasslands across the globe and quantify the effect of chronic fertilization on these relationships. Unfertilized local communities with more plant species exhibit greater asynchronous dynamics among species in response to natural environmental fluctuations, resulting in greater local stability (alpha stability). Moreover, neighborhood communities that have greater spatial variation in plant species composition within sites (higher beta diversity) have greater spatial asynchrony of productivity among communities, resulting in greater stability at the larger scale (gamma stability). Importantly, fertilization consistently weakens the contribution of plant diversity to both of these stabilizing mechanisms, thus diminishing the positive effect of biodiversity on stability at differing spatial scales. Our findings suggest that preserving grassland functional stability requires conservation of plant diversity within and among ecological communities.

Combined effects of climate warming and plant diversity loss on above- and below-ground grassland productivity

2007 ◽  
Vol 60 (1) ◽  
pp. 95-104 ◽  
Author(s):  
H.J. De Boeck ◽  
C.M.H.M. Lemmens ◽  
B. Gielen ◽  
H. Bossuyt ◽  
S. Malchair ◽  
...  
Keyword(s):  
Plant Diversity ◽  
Climate Warming ◽  
Combined Effects ◽  
Diversity Loss ◽  
Below Ground ◽  
Grassland Productivity

scholarly journals Plant diversity effects on grassland productivity are robust to both nutrient enrichment and drought

2016 ◽  
Vol 371 (1694) ◽  
pp. 20150277 ◽  
Author(s):  
Dylan Craven ◽  
Forest Isbell ◽  
Pete Manning ◽  
John Connolly ◽  
Helge Bruelheide ◽  
...  
Keyword(s):  
Species Richness ◽  
Plant Species ◽  
Plant Diversity ◽  
Resource Availability ◽  
Nutrient Enrichment ◽  
Plant Species Richness ◽  
Nutrient Addition ◽  
Ecosystem Productivity ◽  
Grassland Productivity ◽  
Complementarity Effects

Global change drivers are rapidly altering resource availability and biodiversity. While there is consensus that greater biodiversity increases the functioning of ecosystems, the extent to which biodiversity buffers ecosystem productivity in response to changes in resource availability remains unclear. We use data from 16 grassland experiments across North America and Europe that manipulated plant species richness and one of two essential resources—soil nutrients or water—to assess the direction and strength of the interaction between plant diversity and resource alteration on above-ground productivity and net biodiversity, complementarity, and selection effects. Despite strong increases in productivity with nutrient addition and decreases in productivity with drought, we found that resource alterations did not alter biodiversity–ecosystem functioning relationships. Our results suggest that these relationships are largely determined by increases in complementarity effects along plant species richness gradients. Although nutrient addition reduced complementarity effects at high diversity, this appears to be due to high biomass in monocultures under nutrient enrichment. Our results indicate that diversity and the complementarity of species are important regulators of grassland ecosystem productivity, regardless of changes in other drivers of ecosystem function.

Impacts of burrows and mounds formed by plateau rodents on plant species diversity on the Qinghai-Tibetan Plateau

2015 ◽  
Vol 37 (1) ◽  
pp. 117 ◽  
Author(s):  
Ruixin Wu ◽  
Qi Chai ◽  
Jianquan Zhang ◽  
Mengying Zhong ◽  
Yuehua Liu ◽  
...  
Keyword(s):  
Species Diversity ◽  
Tibetan Plateau ◽  
Plant Diversity ◽  
Management Practices ◽  
Source Region ◽  
Diversity Indices ◽  
Rangeland Management ◽  
Community Diversity ◽  
Grassland Productivity ◽  
Total P

The relationships among environmental factors, rodent activity disturbance and plant-community diversity were studied across four sites in a prefecture of the ‘Three-River-Source’ region of the Qinghai-Tibetan Plateau. It was found that burrow number and mound area had little impact on plant diversity indices, which were mainly affected by altitude, soil total P and pH. Altitude and mound area, especially mound area, can strongly affect the aboveground biomass and the vegetation cover of plants was mainly influenced by mound area. There was some evidence that moderate levels of disturbance by rodents could lead to the highest levels of plant diversity. These findings indicated that moderate levels of disturbance by rodents may be beneficial to grassland productivity and plant diversity. Understanding these impacts is vital for better rangeland management practices so that rodents should be controlled within a suitable range rather than being exterminated.

scholarly journals General stabilizing effects of plant diversity on grassland productivity through population asynchrony and overyielding

Ecology ◽  
2010 ◽  
Vol 91 (8) ◽  
pp. 2213-2220 ◽  
Author(s):  
A. Hector ◽  
Y. Hautier ◽  
P. Saner ◽  
L. Wacker ◽  
R. Bagchi ◽  
...  
Keyword(s):  
Plant Diversity ◽  
Grassland Productivity

Plant diversity and species richness of Ljubljana marsh grasslands under the influence of different cutting and fertilizing regimes

2009 ◽  
Vol 57 (2) ◽  
pp. 197-203 ◽  
Author(s):  
T. Sinkovč
Keyword(s):  
Species Richness ◽  
Plant Diversity ◽  
Grassland Management ◽  
Botanical Composition ◽  
Significant Negative Effect ◽  
Negative Effect ◽  
Cutting Regimes ◽  
N Rates ◽  
Exploitation Intensity ◽  
Plot Design

The botanical composition of grasslands determines the agronomic and natural values of swards. Good grassland management usually improves herbage value, but on the other hand it frequently decreases the plant diversity and species richness in the swards. In 1999 a field trial in a split-plot design with four replicates was therefore established on the Arrhenatherion type of vegetation in Ljubljana marsh meadows in order to investigate this relationship. Cutting regimes (2 cuts — with normal and delayed first cut, 3 cuts and 4 cuts per year) were allocated to the main plots and fertiliser treatments (zero fertiliser — control, PK and NPK with 2 or 3 N rates) were allocated to the sub-plots. The results at the 1 st cutting in the 5 th trial year were as follows: Fertilising either with PK or NPK had no significant negative effect on plant diversity in any of the cutting regimes. In most treatments the plant number even increased slightly compared to the control. On average, 20 species were listed on both unfertilised and fertilised swards. At this low to moderate level of exploitation intensity, the increased number of cuts had no significant negative effect on plant diversity either (19 species at 2 cuts vs. 20 species at 3 or 4 cuts). PK fertilisation increased the proportion of legumes in the herbage in the case of 2 or 3 cuts. The proportion of grasses in the herbage increased in all the fertilisation treatments with an increased numbers of cuts. Fertiliser treatment considerably reduced the proportion of marsh horsetail ( Equisetum palustre ) in the herbage of the meadows. This effect was even more pronounced at higher cut numbers. The proportion of Equisetum palustre in the herbage was the highest in the unfertilised sward with 2 cuts (26.4 %) and the lowest in the NPK-fertilised sward with 4 cuts (1.4%).

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