A comparison of C:N:P stoichiometry in soil and deadwood at an advanced decomposition stage

Piaszczyk, Wojciech; Błońska, Ewa; Lasota, Jarosław; Lukáč, Martin

doi:10.1016/j.catena.2019.03.025

Cited by 38 publications

(22 citation statements)

References 34 publications

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“…In our study, in both soils, the C:N and C:P ratios in the topsoil (0–20 cm) were approximately similar to the average ratios for China (12.3 and 52.7, respectively) [28] and to global average ratios [27]. The N:P ratio in our results was lower than those found by Wojciech et al [58] in a forestland and by Wang et al [57] in subtropical wetlands in China. In another study, an N:P ratio similar to our results was reported by Zhang et al [59] during the afforestation on loess Plateau of China.…”

Section: Discussionsupporting

confidence: 81%

Soil carbon (C), nitrogen (N) and phosphorus (P) stoichiometry drives phosphorus lability in paddy soil under long-term fertilization: A fractionation and path analysis study

et al. 2019

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Soil C:N:P stoichiometry plays a vital role in nutrient cycling in ecosystems, but its importance to P transformation in paddy soil remains unclear. We investigated the effect of soil C:N:P stoichiometry on P mobility and uptake under long-term fertilization. Three treatments, CK (no fertilization), NPK (inorganic nitrogen, phosphorus and potassium fertilization) and NPKM (combined inorganic NPK fertilizer and manure application), were selected from two long-term experiments of paddy soil that were initiated in 1991 and 1982 in Chongqing and Suining, respectively. The results showed that in comparison the control treatment, under long-term fertilization, soil pH decreased. In comparison with the NPK and CK treatments, the NPKM treatment significantly increased soil nutrient contents, P uptake and phosphatase activities. In comparison to the CK treatment, the NPK and NPKM treatments significantly decreased soil C:N, C:P and N:P ratios. In comparison to NPK and CK treatments, the NPKM treatment decreased residual-P at both sites. Compared with CK treatment, the NPKM treatments increased labile-P and moderately labile-P by 987% and 144%, respectively, and NPK treatment increased these factors by 823% and 125%, respectively, at the Chongqing site. At the Suining site, with NPKM treatment, increases in labile-P and moderately labile-P were 706% and 73%, respectively, and with NPK treatment, the increases were 529% and 47%, respectively. In contrast, non-labile-P was significantly decreased with NPKM treatment in comparison to that with NPK and CK treatments. Moreover, increases in soil C:N and C:P ratios decreased the labile-P pools and increased non-labile-P pools. A path analysis indicated that soil C:N:P stoichiometry indirectly controlled P uptake by directly affecting P transformation from non-labile to labile-P pools. Moreover, the non-labile-P in soil with high SOM and P content directly affected P uptake, indicating that soil P transformation is mainly driven by soil C and P in paddy soil. In conclusion, understanding mechanism of P mobility influenced by soil C:N:P stoichiometry could be helpful to manage soil P fertility under long-term fertilization in paddy soils of these regions.

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Section: Discussionsupporting

confidence: 81%

Soil carbon (C), nitrogen (N) and phosphorus (P) stoichiometry drives phosphorus lability in paddy soil under long-term fertilization: A fractionation and path analysis study

et al. 2019

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“…The quality and quantity of SOM were more favorably influenced by alder wood. Previous studies indicate a beneficial effect of alder wood decomposition on surface soil levels [2,9]. More decomposed alder wood releases more nitrogen compounds to the soil, which is reflected in the biochemical activity of the soils and component circulation.…”

Section: Discussionmentioning

confidence: 99%

“…Leachates from deadwood penetrate the soil via filtering water, whereas fragmented wood penetrates soil through bioturbation as a result of biological activity [21]. Deadwood can change not only carbon storage and nutrient availability in soil but also its water holding capacity [2,22]. The examined physical properties correlated with soil carbon content.…”

Section: Discussionmentioning

confidence: 99%

“…Deadwood had contact with soil since the beginning of the decomposition process. The DCs of logs were estimated according to the classification of dead trees reported in Maser et al [17], which was used in previous studies [1,2,9,10] (Table 1). We selected logs with a diameter between 25 and 35 cm to ensure a direct comparison of observations.…”

Section: Sampling Sites and Experimental Designmentioning

confidence: 99%

“…Deadwood is a source of biodiversity and is an important element of the ecosystem that positively affects the physical, chemical, and biochemical properties of soil [1,2]. Wood from dead and fallen trees left in the ecosystem serves as the habitat of fungi, insects, and microorganisms, and it functions as a reservoir of nutrients [3].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Organic Matter Released from Deadwood at Different Decomposition Stages on Physical Properties of Forest Soil

Piaszczyk

Lasota

Błońska

2019

Forests

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The wood of dead trees is an essential element of the forest ecosystem, as it affects the characteristics of forest soil properties. The present study aimed to determine the influence of dead alder and aspen wood in various stages of decomposition on the physical properties of forest soil. The study was carried out in the area of the Czarna Rózga reserve in central Poland. Alder and aspen logs in third, fourth, and fifth decay classes were selected for the study. Wood and soil samples under the direct influence of wood and soil samples without the influence of deadwood were collected for laboratory analyses. Physical properties of the soil samples, such as bulk density, moisture, porosity, field capacity, and air capacity were analyzed. Water repellency (WR) was also determined. Our study confirmed that decomposing wood influenced the physical properties of forest soil. Organic matter released from decomposing wood penetrates the soil and alters its physical properties. By releasing organic matter from deadwood, it is possible to stimulate the formation of soil aggregates, improve soil porosity, and significantly increase the number of micropores, which results in the retention of more water in the soil.

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Carbon sequestration in aggregates from native and cultivated soils as affected by soil stoichiometry

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et al. 2020

Biol Fertil Soils

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A comparison of C:N:P stoichiometry in soil and deadwood at an advanced decomposition stage

Cited by 38 publications

References 34 publications

Soil carbon (C), nitrogen (N) and phosphorus (P) stoichiometry drives phosphorus lability in paddy soil under long-term fertilization: A fractionation and path analysis study

Soil carbon (C), nitrogen (N) and phosphorus (P) stoichiometry drives phosphorus lability in paddy soil under long-term fertilization: A fractionation and path analysis study

Effect of Organic Matter Released from Deadwood at Different Decomposition Stages on Physical Properties of Forest Soil

Carbon sequestration in aggregates from native and cultivated soils as affected by soil stoichiometry

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