Response of forest growth to C:N:P stoichiometry in plants and soils during Robinia pseudoacacia afforestation on the Loess Plateau, China

Zhang, Wei; Liu, Weichao; Xu, Miaoping; Deng, Jian; Han, Xinhui; Yang, Gaihe; Feng, Yongzhong

doi:10.1016/j.geoderma.2018.09.042

Cited by 170 publications

(132 citation statements)

References 59 publications

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“…The study of N and P concentrations and N:P ratios in rivers and basins allows the analysis of the effects of multiple human activities on nutrient budgets Zhang, Liu, et al, 2019) across a range of land uses (Romero et al, 2019;Sardans et al, 2012a;Zhang, Li, et al, 2019;Figure 5 Fenn et al, 1998;Franzaring, Holz, Zipperle, & Fangmeier, 2010;Prietzel & Stetter, 2010;Schmitz et al, 2019;Veresoglou et al, 2014;Wang, Sardans, et al, 2017), tend to be enriched more rapidly by N than P, thereby increasing the N:P ratios ( Figure 5). This trend has been exacerbated by the progressive replacement of P-rich with N-rich detergents (Sardans et al, 2012b and references therein).…”

Section: Spatial Heterogeneity In Anthropogenic N and P Imbalances:mentioning

confidence: 99%

“…Although most studies of urban and crop wastes and leachate loads to rivers and estuaries (83.3%) have found increasing N:P ratios associated with increasing N:P ratios from human inputs, other studies (13.7%) tended to find decreasing ratios in areas with high livestock densities (Arbuckle & Downing, 2001;Johnson, Heck, & Fourqurean, 2006; Figure 6; Table S1). Changes in N and/or P availability and associated shifts in N:P ratios drive changes in species competition and dominance in communities of terrestrial plants (Sardans, Rodà, & Penuelas, 2004;Zhang, Liu, et al, 2019), animals (Jochum et al, 2017), microbes Fanin, Fromin, Biatois, & Hättenschwiler, 2013;Ren et al, 2017;Shao et al, 2017;Zechmeister-Bolstenstren et al, 2015), and plankton (Elser, Andersen, et al, 2009;Grosse, Burson, Stomp, Huisman, & Boschker, 2017;He, Li, Wei, & Tan, 2013;Moorthi et al, 2017;Plum, Husener, & Hillebrand, 2015). Changes in media (water or soil) N:P ratios affect the structure of terrestrial (Fanin et al, 2013;Scharler et al, 2015;Zechmeister-Bolstenstren et al, 2015) and aquatic (Sitters, Atkinson, Guelzow, Kelly, & Sullivan, 2015) food webs, but associated impacts on community diversity are unclear.…”

Section: Cascading Effectsmentioning

confidence: 99%

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Anthropogenic global shifts in biospheric N and P concentrations and ratios and their impacts on biodiversity, ecosystem productivity, food security, and human health

Peñuelas

Janssens

Ciais

et al. 2020

Global Change Biology

188

119

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The availability of carbon (C) from high levels of atmospheric carbon dioxide (CO2) and anthropogenic release of nitrogen (N) is increasing, but these increases are not paralleled by increases in levels of phosphorus (P). The current unstoppable changes in the stoichiometries of C and N relative to P have no historical precedent. We describe changes in P and N fluxes over the last five decades that have led to asymmetrical increases in P and N inputs to the biosphere. We identified widespread and rapid changes in N:P ratios in air, soil, water, and organisms and important consequences to the structure, function, and biodiversity of ecosystems. A mass‐balance approach found that the combined limited availability of P and N was likely to reduce C storage by natural ecosystems during the remainder of the 21st Century, and projected crop yields of the Millennium Ecosystem Assessment indicated an increase in nutrient deficiency in developing regions if access to P fertilizer is limited. Imbalances of the N:P ratio would likely negatively affect human health, food security, and global economic and geopolitical stability, with feedbacks and synergistic effects on drivers of global environmental change, such as increasing levels of CO2, climatic warming, and increasing pollution. We summarize potential solutions for avoiding the negative impacts of global imbalances of N:P ratios on the environment, biodiversity, climate change, food security, and human health.

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Section: Spatial Heterogeneity In Anthropogenic N and P Imbalances:mentioning

confidence: 99%

Section: Cascading Effectsmentioning

confidence: 99%

Anthropogenic global shifts in biospheric N and P concentrations and ratios and their impacts on biodiversity, ecosystem productivity, food security, and human health

Peñuelas

Janssens

Ciais

et al. 2020

Global Change Biology

188

119

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“…However, the enhanced primary vegetation productivity also increased the exogenous inputs (litter and rhizodeposition), and ultimately causing an increase in the source of soil P (Cao & Chen, ). To date, afforestation have been reported to either increase (Chen, He, et al, ; Zhang et al, ), decrease (Hu et al, ; Li et al, ), or have no effect (Shi et al, ; Wei et al, ) on total and available P. The current studies on changes in soil TP (available phosphorus [AP]) stocks following afforestation are mostly focusing on the plot scale, which fail to involve more affecting factors and extrapolate to a more convincing conclusion. For example, studies on P dynamics following grassland (GL) afforestation focused on the effect of the tree species, and the studied plantation ages were not dynamic (Chen, Condron, Davis, & Sherlock, ; Chirino‐Valle, Davis, & Condron, ).…”

Section: Introductionmentioning

confidence: 99%

Changes in soil phosphorus and its influencing factors following afforestation in Northern China

Peng

et al. 2019

Land Degrad Dev

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Changes in soil carbon (C) and nitrogen (N) stocks following afforestation have been widely studied at different scales. However, soil phosphorus (P) dynamics following afforestation are poorly understood, especially at the regional scale. This paper studied the effects of prior land use (cropland, grassland, and barren land), tree species (conifer, broadleaf, shrub, and mixed), plantation age (young, middle, and old), and climate on soil total phosphorus and available phosphorus stocks change in the top 20 cm following afforestation based on a synthesis of 50 recent publications in northern China. We also considered possible confounding effects between these factors. The results showed that, overall, soil total phosphorus and available phosphorus stocks significantly decreased by 7.3% and significantly increased by 8.8%, respectively, following afforestation. Prior land use was found to be the most important driver in determining changes in soil P stocks. Compared with a significant decrease in P of afforestation of former cropland and grassland, afforestation of barren land caused no clear decrease in P. Tree species was found to have a limited effect on changes in soil P after afforestation, and broadleaf afforestation has a lower P demand than coniferous forests in the studied region. Plantation age did not affect the dynamics of P stocks. Our results showed confounding effects of precipitation, prior land use, and tree species, which impacted the estimates of the drivers of changes in P stocks. These results highlighted the importance of tree species selection and replication across sites that receive different amounts of precipitation.

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“…In this study, to examine the potential factors related to plant growth, we correlated leaf nutrients with soil properties ( Table 6). The type of revegetation, that is, forest, shrub, and grass, might explain the different soil particle sizes and nutrient acquisition patterns of leaves during the growth of such vegetation (Zhang et al 2019a). The type of revegetation, that is, forest, shrub, and grass, might explain the different soil particle sizes and nutrient acquisition patterns of leaves during the growth of such vegetation (Zhang et al 2019a).…”

Section: Relationship Between Soil Properties and Leaf Nutrientsmentioning

confidence: 99%

“…The type of revegetation, that is, forest, shrub, and grass, might explain the different soil particle sizes and nutrient acquisition patterns of leaves during the growth of such vegetation (Zhang et al 2019a). The LTP content is restricted by the availability of P in the soil, and N fixation in plants can be affected by the soil AP, particularly by the lack of PO 4 + (Zhang et al 2019a). However, the recovered plants continued to consume soil nutrients, especially in the early stages of ecological restoration, which had a lower coverage (Li et al 2013).…”

Section: Relationship Between Soil Properties and Leaf Nutrientsmentioning

confidence: 99%

Effects of ecological restoration on soil properties of the aeolian sandy land around Lhasa, southern Tibetan Plateau

Liao

et al. 2020

Ecosphere

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2020. Effects of ecological restoration on soil properties of the aeolian sandy land around Lhasa, southern Tibetan Plateau. Ecosphere 11(1):e03009.Abstract. The ecological restoration of aeolian sandy land has not only improved the function of ecosystem services, such as wind prevention and sand fixation, but has also indirectly reduced the regional economic losses caused by sandstorms. However, the interaction between vegetation and soil properties after natural and artificial restoration of the sandy land in southern Tibetan Plateau has not been sufficiently studied. In the present study, we selected four vegetation types, including artificial forest (A), revegetated shrub (B), natural shrub (C), and natural grassland (D), in the sandy land in the middle reaches of the Yarlung Zangbo River basin, Tibet, China, and investigated the changes in soil particle size and nutrients at depths of 0-20 cm and 20-40 cm, finally examining the potential relationships between soil properties and leaf nutrients. Our results indicated that in the topsoil (0-20 cm), the natural shrub (C) and natural grassland (D) have greater silt content, recorded as 50.77% and 62.16%, respectively, compared to the artificial forest (A) and revegetated shrub (B). Natural grassland (D) had the highest silt content and the lowest soil bulk density (SBD) among the four vegetation types. There was no significant difference in the soil organic matter (SOM) in the topsoil of the different vegetation types. However, at the depth of 20-40 cm, the SOM content of the different vegetation types was in the following order: natural grassland (D) (23.37 g/ kg) > natural shrub (C) (17.42 g/kg) > revegetated shrub (B) (14.85 g/kg) > artificial forest (A) (8.43 g/kg). The ammonium nitrogen content in the revegetated shrub (B) was higher compared to the other vegetation types. The SOM content was significantly correlated with the total phosphorus (TP) and available phosphorus (AP) of the sandy land. The leaf total carbon, nitrogen, and phosphorus exhibited a positive correlation with SBD, AP, and available potassium. These findings can provide useful information to optimize the patterns of natural and artificial restoration for controlling desertification in similar eco-regions.

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Response of forest growth to C:N:P stoichiometry in plants and soils during Robinia pseudoacacia afforestation on the Loess Plateau, China

Cited by 170 publications

References 59 publications

Anthropogenic global shifts in biospheric N and P concentrations and ratios and their impacts on biodiversity, ecosystem productivity, food security, and human health

Anthropogenic global shifts in biospheric N and P concentrations and ratios and their impacts on biodiversity, ecosystem productivity, food security, and human health

Changes in soil phosphorus and its influencing factors following afforestation in Northern China

Effects of ecological restoration on soil properties of the aeolian sandy land around Lhasa, southern Tibetan Plateau

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