Combined surface drip irrigation and fertigation significantly increase biomass and carbon storage in a<i>Populus</i>×<i>euramericana</i>cv. Guariento plantation

Yan, Xiaoli; Dai, Tengfei; Zhao, Dehai; Jia, Liming

doi:10.1007/s10310-016-0540-7

Cited by 12 publications

(6 citation statements)

References 65 publications

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“…The occurrence of more fine roots in the surface soil is reasonable especially under this high N condition (Bennett et al 2002;Zewdie et al 2008). Second, N addition through surface drip irrigation in our study should have percolated slowly to approximately 50 cm in depth (Xi et al 2013;Yan et al 2016); fine roots in the topsoil layer should have priority access to nutrients (Chang et al 2012;Vogt et al 1981). The effect of fertigation management on soil N content should have gradually moved downward in the soil as N addition continues.…”

Section: Effects Of N Addition Through Surface Drip Fertigation On Romentioning

confidence: 74%

“…Highefficiency fertilization techniques such as fertigation have been increasingly applied to the cultivation of plantations to meet their high nutrient requirements around the world (O'Neill et al 2014;Rennenberg et al 2010;Wang et al 2015). Although previous studies have shown that fertigation can significantly promote the growth and production of polar plantations Yan et al 2018;Yan et al 2016), the responses of root systems were not reported. Several studies investigated fine root characteristics in poplar (Alafas et al 2008;Dickmann et al 1996;Douglas et al 2010;Heilman et al 1994;Mulia and Dupraz 2006;Pregitzer et al 2000), but those on root morphological traits in response to N addition through long-term field experiments were relatively few (but see Coleman 2007;Dickmann et al 1996).…”

Section: Introductionmentioning

confidence: 99%

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Fine root morphology and growth in response to nitrogen addition through drip fertigation in a Populus × euramericana “Guariento” plantation over multiple years

Yan

Jia

Dai

2019

Annals of Forest Science

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& Key message Nitrogen addition through drip fertigation to a poplar plantation (Populus × euramericana BGuariento^) promoted fine root growth only in the early period. The relationship between root growth and soil N content was positive in the first 2 years, but became negative in the third year when the soil N availability had substantially increased. & Context Nitrogen (N) deficiency is common in forest soils, and N addition is sometimes applied in the case of intensive plantations. There is a need to better document the impact of N addition through the high-efficiency fertilization technique on fine root morphology and growth, given their importance for the uptake of nutrients and for tree growth. & Aims We aimed to quantitatively investigate the responses of fine roots in morphology and growth to N addition through surface drip fertigation over multiple years in a Populus × euramericana BGuariento^plantation. & Methods A field experiment that included four drip fertigation treatments with N addition levels (0, 60, 120, and 180 kg N ha −1 year −1 ) was conducted for three successive years. A coring method was used to sample soils and quantify the root morphological traits and soil N content along 0-60-cm profiles. & Results The root biomass density, length, surface area, specific length, and tissue density were significantly higher in the N addition treatments than those in the control after the first year, but the positive effect decreased in the second year. In the third year, root biomass in the N addition treatments was even lower by 11-39% than that in the control. The relationship between root growth and soil N content was also positive in the first 2 years and negative in the third year. & Conclusion N addition promoted fine root growth mainly in the shallow soil and in the early period of experiment. The relationship between root growth and soil N content became negative in the third year when the soil N availability had substantially increased. It is suggested that fine roots adjust their growth and morphology in response to N availability varying along the soil profile and with the fertilization duration.

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Section: Effects Of N Addition Through Surface Drip Fertigation On Romentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Fine root morphology and growth in response to nitrogen addition through drip fertigation in a Populus × euramericana “Guariento” plantation over multiple years

Yan

Jia

Dai

2019

Annals of Forest Science

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“…The use of fertilizer in SRC plantations is a subject which attracts debate. There are many examples where fertilization provides no benefits [59,90,[169][170][171] and others where there are positive effects on production [145,[172][173][174][175][176][177].…”

Section: Fertilizationmentioning

confidence: 99%

Poplar Short Rotation Coppice Plantations under Mediterranean Conditions: The Case of Spain

Oliveira

Pérez-Cruzado

Cañellas

et al. 2020

Forests

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Developing a circular bioeconomy based on the sustainable use of biological resources, such as biomass, seems to be the best way of responding to the challenges associated with global change. Among the many sources, short rotation forest crops are an essential instrument for obtaining quality biomass with a predictable periodicity and yield, according to the areas of cultivation. This review aims to provide an overview of available knowledge on short rotation coppice Populus spp. plantations under Mediterranean conditions and specifically in Spain, in order to identify not only the status, but also the future prospects, for this type of biomass production. The analysis of available information was conducted by taking into consideration the following aspects: Genetic plant material; plantation design, including densities, rotation lengths and the number of rotations, and mixtures; management activities, including irrigation, fertilization, and weed control; yield prediction; biomass characterization; and finally, an evaluation of the sustainability of the plantation and ecosystem services provided. Despite advances, there is still much to be done if these plantations are to become a commercial reality in some Mediterranean areas. To achieve this aim, different aspects need to be reconsidered, such as irrigation, bearing in mind that water restrictions represent a real threat; the specific adaptation of genetic material to these conditions, in order to obtain a greater efficiency in resource use, as well as a greater resistance to pests and diseases or tolerance to abiotic stresses such as drought and salinity; rationalizing fertilization; quantifying and valuing the ecosystem services; the advance of more reliable predictive models based on ecophysiology; the specific characterization of biomass for its final use (bioenergy/bioproducts); technological improvements in management and harvesting; and finally, improving the critical aspects detected in environmental, energy, and economic analyses to achieve profitable and sustainable plantations under Mediterranean conditions.

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“…Poplar, which is currently the major afforestation tree species of rapid-growing and high-yield forests in China, plays an important role in wood-production, urban greening, bioenergy, and desertification control [ 1 , 2 ]. Currently, flood irrigation is the main strategy in the water management of poplar plantations.…”

Section: Introductionmentioning

confidence: 99%

Combined effects of border irrigation and super-absorbent polymers on enzyme activity and microbial diversity of poplar rhizosphere soil

Liu,

Zhuang,

Qiao

et al. 2024

PLoS ONE

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Fast-growing poplar plantations are considered a great benefit to timber production, but water availability is a key factor limiting their growth and development, especially in arid and semi-arid ecosystems. Super-absorbent polymers facilitate more water retention in soil after rain or irrigation, and they are able to release water gradually during plant growth. This study aimed to examine the effects of reduced irrigation (60% and 30% of conventional border irrigation) co-applied with super-absorbent polymers (0, 40 kg/ha) on root exudates, enzyme activities, microbial functional diversity in rhizosphere soil, and volume increments in poplar (Populus euramericana cv. ‘Neva’). The results showed that 60% border irrigation co-applied with super-absorbent polymers significantly increased the content of organic acids, amino acids and total sugars in the root exudates, and the activities of invertase, urease, dehydrogenase, and catalase in the rhizosphere soil in comparison to conventional border irrigation without super-absorbent polymers. Meanwhile, this treatment also enhanced the average well-color development, Shannon index, and McIntosh index, but decreased the Simpson index. Additionally, the average volume growth rate and relative water content of leaves reached their maximum using 60% irrigation with super-absorbent polymers, which was significantly higher than other treatments. However, using 30% irrigation with super-absorbent polymers, had a smaller effect on rhizosphere soil and volume growth than 60% irrigation with super-absorbent polymers. Therefore, using an appropriate water-saving irrigation measure (60% conventional border irrigation with super-absorbent polymers) can help to improve enzyme activities and microbial diversity in the rhizosphere soil while promoting the growth of poplar trees.

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Combined surface drip irrigation and fertigation significantly increase biomass and carbon storage in aPopulus×euramericanacv. Guariento plantation

Cited by 12 publications

References 65 publications

Fine root morphology and growth in response to nitrogen addition through drip fertigation in a Populus × euramericana “Guariento” plantation over multiple years

Fine root morphology and growth in response to nitrogen addition through drip fertigation in a Populus × euramericana “Guariento” plantation over multiple years

Poplar Short Rotation Coppice Plantations under Mediterranean Conditions: The Case of Spain

Combined effects of border irrigation and super-absorbent polymers on enzyme activity and microbial diversity of poplar rhizosphere soil

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