Warming changes soil N and P supplies in model tropical forests

Lie, Zhiyang; Lin, Wei; Huang, Wenjuan; Fang, Xiong; Huang, Chumin; Wu, Ting; Chu, Guowei; Liu, Shizhong; Meng, Ze; Zhou, Guoyi; Liu, Juxiu

doi:10.1007/s00374-019-01382-7

Cited by 17 publications

(8 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1b) is consistent with the ndings of many studies that point to the P limitation in soil microbial communities in tropical and subtropical ecosystems (Camenzind et al, 2018;Sinsabaugh et al, 2008;Xu et al, 2017). The observed warming alleviated microbial P limitation in the topsoil is in agreement with a translocation warming experiment in tropical China (Lie et al, 2019). The alleviation of microbial P limitation probably resulted from increased SOC decomposition under the warming treatments.…”

Section: Effects Of Warming On Microbial Resource Limitationsupporting

confidence: 90%

“…Zheng et al (2020) reported that warming reduced microbial C limitation in the mineral soil layer and increased P limitation in the organic layer in an alpine shrubland ecosystem. Lie et al (2019) found that warming mitigated P limitation and increased N consumption in tropical forests by increasing the soil P availability. However, these studies have mainly focused on the 0-20 cm soil depth topsoil, and the knowledge of the effects of warming on microbial resource limitation below the 20 cm soil depth subsoil remains limited.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Divergent effects of short-term warming on microbial resource limitation between topsoil and subsoil in a young subtropical Chinese fir forest

Zheng

Lin²,

Fan³

et al. 2023

Biogeochemistry

View full text Add to dashboard Cite

Purpose The effect of warming on microbial resource limitations, especially in resource-poor subsoils, remains unclear. This study investigated the effects of warming on microbial resource [carbon (C), nitrogen (N) and phosphorus (P)] limitation and explored their relationships with soil properties and microbial community structure in topsoil (0-10 cm) and subsoil (40-60 cm).Methods In 2014, ten 2 m×2 m plots were established and assigned to the warming and control treatments at a Chinese r (Cunninghamia lanceolata) plantation in southern China. Microbial resource limitation with warming treatment was accessed via vector analysis of soil extracellular enzymatic stoichiometry after two years.Results Warming aggravated microbial C limitation in the topsoil but alleviated microbial C limitation in the subsoil, while it shifted the microbial nutrient limitation from P limitation to N limitation in the subsoil. Soil microbial C limitation was explained by soil properties (speci cally, ammonium nitrogen) in the topsoil while by microbial community composition in the subsoil based on variance partition analysis.The soil microbial nutrient limitation was explained by soil properties in the topsoil and subsoil. The decrease in actinomycetes abundance in the warming treatment may have led to a decreased microbial C limitation in the subsoil. ConclusionOur study highlighted the differences in warming effects between the topsoil and subsoil. We argue that the microbial resource demand of the subsoil should be further implemented in soil biogeochemistry to improve the prediction of the impact of climate warming on soil C dynamics.

show abstract

Section: Effects Of Warming On Microbial Resource Limitationsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Divergent effects of short-term warming on microbial resource limitation between topsoil and subsoil in a young subtropical Chinese fir forest

Zheng

Lin²,

Fan³

et al. 2023

Biogeochemistry

View full text Add to dashboard Cite

show abstract

“…First, soil NO 3 ‐N concentrations was reduced under warming, which identifies with studies in plateau ecosystems showing negative responses of inorganic N because warming increased plant N uptake or N leaching (Chang et al., 2017; Ineson et al., 1998; Li et al., 2015), but contrasts with most studies that warming increased N availability due to the enhanced N mineralization (Bai et al., 2013; Butler et al., 2012; Dawes et al., 2017; Gao & Yan, 2019). Although soil N mineralization may be potentially increased under warming at our site, as indicated by higher soil organic matter decomposition and greater N‐involving enzyme activity (Fang et al., 2020; Lie et al., 2019), the enhancement of N mineralization could be limited because the increases in temperature (1.0 and 2.1°C) were lower than in most previous experiments (>3°C) and the litter N concentrations were largely decreased. It has been shown that the warming‐induced lower N concentrations in litter may decrease litter quality and restrict litter decomposition rate, which could in turn inhibit soil N supply under warming (An et al., 2005).…”

Section: Discussionmentioning

confidence: 69%

Warming leads to more closed nitrogen cycling in nitrogen‐rich tropical forests

Lie

Huang

Liu

et al. 2020

Global Change Biology

Self Cite

View full text Add to dashboard Cite

Warming may have profound effects on nitrogen (N) cycling by changing plant N demand and underground N supply. However, large uncertainty exists regarding how warming affects the integrated N dynamic in tropical forests. We translocated model plant‐soil ecosystems from a high‐altitude site (600 m) to low‐altitude sites at 300 and 30 m to simulate warming by 1.0°C and 2.1°C, respectively, in tropical China. The effects of experimental warming on N components in plant, soil, leaching, and gas were studied over 6 years. Our results showed that foliar δ15N values and inorganic N (NH4‐N and NO3‐N) leaching were decreased under warming, with greater decreases under 2.1°C of warming than under 1.0°C of warming. The 2.1°C of warming enhanced plant growth, plant N uptake, N resorption, and fine root biomass, suggesting higher plant N demand. Soil total N concentrations, NO3‐N concentrations, microbial biomass N and arbuscular mycorrhizal fungal abundance were decreased under 2.1°C of warming, which probably restricted bioavailable N supply and arbuscular mycorrhizal contribution of N supply to plants. These changes in plants, soils and leaching indicated more closed N cycling under warming, the magnitude of which varied over time. The closed N cycling became pronounced during the first 3 years of warming where the sustained reductions in soil inorganic N could not meet plant N demand. Subsequently, the closed N cycling gradually mitigated, as observed by attenuated positive responses of plant growth and less negative responses of microbial biomass N to warming during the last 3 years. Overall, the more closed N cycling under warming could facilitate ecosystem N retention and affect production in these tropical forests, but these effects would be eventually mitigated with long‐term warming probably due to the restricted plant growth and microbial acclimation.

show abstract

“…All collected leaves and litter samples were dried in the oven for 72 h. After drying, Walkley–Black wet digestion process was employed to assess the C content in the samples (Lie et al, 2019). Furthermore, N contents in samples were estimated through the Kjeldahl method (Bremner & Mulvaney, 1982).…”

Section: Methodsmentioning

confidence: 99%

“…Furthermore, the activities of β ‐glucosidase (BG), AP, NAG, cellobiohydrolase (CBH), PhOx, and peroxidase were also measured. CBH, BG, AP, and NAG activities were estimated by the process elaborated by Lie et al (2019). Multiskan EX (Thermo Scientific, USA) was employed to assess CBH, BG, AP, and NAG activities at 405 nm, while PhOx and peroxidase activities were quantified at 450 nm.…”

Section: Methodsmentioning

confidence: 99%

Increasing stand age increases N deficiency but alleviates relative P limitations in Castanopsis hystrix plantations in Southern China

Li,

Wu,

et al. 2024

Land Degrad Dev

Self Cite

View full text Add to dashboard Cite

Forest productivity usually declines with the increase in the age of stand, which may be associated with the disturbance in the balance of nitrogen (N) and phosphorus (P) nutrients. However, the effects of stand age on plantation nutrient balance and productivity in plantation is still unclear. Therefore, an experiment was conducted in this study to investigate the influence of the increase in the age of stand (6‐, 10‐, 15‐, 25‐, 30‐, and 34‐year‐old stands) on plant growth and the dynamics of N and P in Castanopsis hystrix plantations of Southern China. The increase in the age of stand reduced plantation productivity and leaf N:P. Moreover, productivity was found to be positively correlated with leaf N:P, reflecting that the decrease in productivity was related to changes in N and P contents in leaves. Reduction in leaf N:P was associated with declining N content and stable P content in leaves. The decrease in leaf N content may be due to the declining –N and microbial biomass N contents in soil, although activities of N‐acetylglucosaminidase, cellobiohydrolase, and polyphenol oxidase decreased with the increase in stand age. The stability of leaf P content may be associated with the increase in soil total P and microbial biomass P, boosting P supply to plants. In contrast, decreased soil phosphatase activity with the increase in the age of stand likely suggests that no additional P was needed through P mineralization. The findings indicate that increasing stand age would improve N consumption but alleviate relative P limitations. Thus, more attention needs to be paid to N fertilizer management (e.g., 10–15‐year stages) to sustain C. hystrix productivity with stand age.

show abstract

Warming changes soil N and P supplies in model tropical forests

Cited by 17 publications

References 73 publications

Divergent effects of short-term warming on microbial resource limitation between topsoil and subsoil in a young subtropical Chinese fir forest

Divergent effects of short-term warming on microbial resource limitation between topsoil and subsoil in a young subtropical Chinese fir forest

Warming leads to more closed nitrogen cycling in nitrogen‐rich tropical forests

Increasing stand age increases N deficiency but alleviates relative P limitations in Castanopsis hystrix plantations in Southern China

Contact Info

Product

Resources

About