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Nitrogen addition decreases seed germination in a temperate steppe

Published on Aug 1, 2019in Ecology and Evolution2.415
· DOI :10.1002/ece3.5151
Mingxing Zhong3
Estimated H-index: 3
(Henan University),
Yuan Miao1
Estimated H-index: 1
(Henan University)
+ 1 AuthorsDong Wang (Henan University)
Abstract
  • References (73)
  • Citations (1)
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References73
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#1Dong Wang (Henan University)H-Index: 2
#2Bing Zhang (Henan University)H-Index: 1
Last. Mingming Li (Henan University)H-Index: 2
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Abstract Gold mining has increased sharply in response to global demand. Gold extraction usually causes the formation of tailing dams, in which organic matter and microbial activity decrease, and this consequently constrains plant growth. However, a full understanding of plant-soil interaction and plant community development in terms of natural restoration of gold mine tailing dam has not yet been developed. Three tailing dams, which had been naturally restored for 2 (R2), 5 (R5), and 10 (R10) y...
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#1Xiaobing Zhou (CAS: Chinese Academy of Sciences)H-Index: 1
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Abstract Short-lived herbaceous plants provide a useful model to rapidly reveal how multiple generations of plants in natural plant communities of sensitive desert ecosystems will be affected by N deposition. We monitored dynamic responses of community structure, richness, evenness, density and biomass of herbaceous plants to experimental N addition (2:1 NH4+:NO3− added at 0, 0.5, 1, 3, 6 and 24 g N m− 2 a− 1) in three seasons in each of three years in the Gurbantunggut desert, a typical tempera...
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#1Yue Du (CAS: Chinese Academy of Sciences)H-Index: 5
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Last. Shi-QiangWAN (Henan University)H-Index: 44
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Little is known about how light affects seed germination and revegetation of species of thermophilous oak forest. To reveal this relationship effects of white, red, far-red irradiations and dark incubation on germination of eight Potentillo albae-Quercetum taxa were examined. Attempts were also made to evaluate the influence of gibberellic acid and different nitrogen sources on the germination characteristics. Interaction between light and nitrogen was also studied. Freshly matured seeds of all ...
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Just as carbon fueled the Industrial Revolution, nitrogen has fueled an Agricultural Revolution. The use of synthetic nitrogen fertilizers and the cultivation of nitrogen-fixing crops both expanded exponentially during the last century, with most of the increase occurring after 1960. As a result, the current flux of reactive, or fixed, nitrogen compounds to the biosphere due to human activities is roughly equivalent to the total flux of fixed nitrogen from all natural sources, both on land masse...
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Both nitrogen (N) and phosphorus (P) enrichment are known to impact plant diversity globally. Recent studies suggest that P enrichment may be as important, or even more important, as a driver of terrestrial plant species loss as N enrichment. However, the generality and relative contribution of these critical nutrients to species losses remains unclear. Here, we quantitatively compared effects of N, P and combined NP enrichment on species richness of natural and semi-natural herbaceous ecosystem...
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Summary The activity and spread of exotic earthworms often are spatially correlated with N deposition because both arise from human activities. Exotic earthworms, in turn, can also greatly affect soil abiotic and biotic properties, as well as related ecological processes. Previous studies showed, for example, that earthworms can counteract the detrimental effects of plant-feeding nematodes on plant growth. However, potential interactive effects of N deposition and exotic earthworms on ecosystems...
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#1Junfeng Wang (NU: University of Nebraska–Lincoln)H-Index: 1
#2Johannes M. H. Knops (NU: University of Nebraska–Lincoln)H-Index: 53
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Adding nutrients to nutrient-limited ecosystems typically lowers plant diversity and decreases species asynchrony. Both, in turn, decrease the stability of productivity in the response to negative climate fluctuations such as droughts. However, most classic studies examining stability have been done in relatively wet grasslands dominated by perennial grasses. We examined how nutrient additions influence the stability of productivity to rainfall variability in an arid grassland with a mix of pere...
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Nitrogen (N) deposition has increased globally and has profoundly influenced the structure and function of grasslands. Previous studies have discussed how N addition affects aboveground biomass (AGB), but the effects of N addition on the AGB of different functional groups in grasslands remain unclear. We conducted a meta-analysis to identify the responses of AGB and the AGB of grasses (AGBgrass) and forbs (AGBforb) to N addition across global grasslands. Our results showed that N addition signif...
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Effects of Increased Nitrogen and Phosphorus Deposition on Offspring Performance of Two Dominant Species in a Temperate Steppe Ecosystem
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Abstract Grasslands, mostly in arid and semiarid regions, play an important role in regulating the dynamics of global terrestrial carbon (C) exchange. However, findings about how global changes affect ecosystem C sequestration are conflicting. To understand how land use and climate change affect ecosystem C and nitrogen (N) pools, this study investigated the effects of mowing and fertilizer on the C and N pools of plants and soil, and on the aggregate-associated C and N content, by means of a fi...
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