Nutrient Cycling and Nutrient Use Efficiency in Short Rotation, High Density Central Himalayan Tarai Poplar Plantations

Lodhiyal, L. S.; Lodhiyal, Neelu

doi:10.1006/anbo.1996.0374

Cited by 19 publications

(14 citation statements)

References 31 publications

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“…However, some other studies demonstrated that both natural forests and mixed species stands could show better hydrological function than the single-species plantation and that this single-species plantation had a limited role in soil protection (Calder et al 1993;Wang et al 2006). The single-species plantations could concentrate the amount of nutrient in the biomass and had greater nutrient uptake by the plant, resulting in depletion of nutrient resources in the soil of the subtropical central Himalayas (Lodhiyal and Lodhiyal 1997). The poor nutrient availability of the soil in the single-species plantations has a negative effect on plant species distribution and prevented understory growth, leading to a decrease in biodiversity and further soil erosion (Tang et al 2007).…”

Section: Introductionmentioning

confidence: 98%

Nutrient relocation, hydrological functions, and soil chemistry in plantations as compared to natural forests in central Yunnan, China

Hou

Duan

Tang

et al. 2009

Ecological Research

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Nutrient relocation, hydrological functions, and soil chemistry in plantations as compared to natural forests in central Yunnan, China Abstract The relocation of nutrients among dominant plant species, along with hydrological functions and soil chemistry in five plant communities, including Eucalyptus plantation, Pinus plantation, shrubland, semi-natural, and natural secondary forests were investigated in central Yunnan, China. The nutrient P, N, and K accumulation in above-ground biomass of Eucalyptus smithii (stems, barks, branches, and leaves) were the highest, followed by Pinus yunnanensis of both the Pinus plantation and the semi-natural forest. The nutrient retranslocation efficiency (NRE) of E. smithii was the highest for nutrient P, N, and K with values of 56, 66, and 67%, respectively, among the dominant plant species of the five plant communities, while the NRE of P. yunnanensis in Pinus plantation had the second highest value of NRE for nutrient N. The nutrient content (available P, N, and soil organic matter) in the upper two soil layers under Eucalyptus and Pinus plantations was correspondingly found to be lower than that of the other forests. Moreover, under the Eucalyptus and Pinus plantations, surface runoff, soil erosion, and nutrient loss were more serious, and the water storage of litterfall and canopy interception were significantly lower than that in the other plant communities. Accordingly, we suggest that single-species plantations cannot present the same ecological benefits as natural forests, because of their simple, uniform structures, and the characteristics of the dominant plant species.

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Section: Introductionmentioning

confidence: 98%

Nutrient relocation, hydrological functions, and soil chemistry in plantations as compared to natural forests in central Yunnan, China

Hou

Duan

Tang

et al. 2009

Ecological Research

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“…As a consequence, and because the relative amount of bark increases with decreasing shoot diameter, the proportion of bark to wood is much higher in SRC than in traditional forestry [11]. As bark contains much higher nutrient concentrations than bole wood [4,12,13], this leads to a relatively larger nutrient removal and, consequently, to a higher nutrient requirement for trees grown as SRC [4,7,14]. In traditional forestry, managers strive to achieve the lowest amount of bark in the harvested wood, because bark also reduces the combustion quality of the fuel wood [13].…”

Section: Introductionmentioning

confidence: 97%

“…We focused on the proleptic branches to assess the average nutrient concentrations in the crown part. The quantification of nutrient fluxes in a managed ecosystem is very important for assessing the fertilisation requirements [4,14,18], because fertilisation is the most energy-consuming process in the life cycle of an SRC culture [9,19]. Reliable data on stand and nutrient dynamics are scarce [5,20] and they rarely take genotypic differences into account [21], although these differences are essential for making correct decisions about fertiliser application [15].…”

Section: Introductionmentioning

confidence: 99%

“…Coppicing of leafless shoots is usually done in winter; this facilitates the mechanised process of coppicing and increases the combustion quality of the woody biomass into the burner. In this way, foliar nutrients are returned to the roots or to the soil [14,15]. On the other hand, leaves could also be considered as a source of harvestable energy [16].…”

Section: Introductionmentioning

confidence: 99%

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Nutrients and energy in proleptic branches and leaves of poplar under a short-rotation coppice

Vanbeveren

Gebauer

Plichta

et al. 2016

Biomass and Bioenergy

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a b s t r a c tRenewable energy is often generated from biomass, produced in short-rotation coppice (SRC) cultures. These cultures are frequently established on former agricultural land with ample availability of plant nutrients as nitrogen, phosphorous, potassium, calcium and magnesium. Nevertheless, little is known about the annual recycling of these nutrients through the leaves, as well as about the amounts that are removed at harvest. We therefore quantified soil nutrient concentrations, as well as nutrient concentrations and the gross calorific value of the proleptic branches and of the leaves of 12 poplar (Populus) genotypes in the second rotation of an operational SRC (with two-year rotations). For the produced leaf biomass, we also quantified the standing energy stock and the nutrient stock of each genotype. After four years the P, K, Ca and Mg soil concentrations had not significantly changed, while the N concentration at 30e60 cm of soil depth had significantly increased. On average, the standing aboveground woody biomass of the 12 genotypes in 2013 was 13.75 Mg ha À1 and the total leaf biomass was 3.54 Mg ha À1 . This resulted in an average standing energy stock in the leaves of 64.8 GJ ha À1 . Nutrient concentrations were lower in the proleptic branches as compared to the leaves, but the proleptic branches and leaf nutrient concentrations significantly varied among the genotypes.

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“…Utilization, circulation, and fluxion of nutrients connect organic matter and soil system (Lodhiyal and Neelu, 1997). During the 1950s and 1960s, scientists had systemically researched the role and cycling process of nutrients in forest ecosystems, especially after putting IBP and MAB into practice (Jordan, 1985;Hüttl and Schaaf, 1995;Lodhiyal and Neelu, 1997;Treseder and Vitousek, 2001;Joanna et al, 2002;Neelu and Lodhiyal, 2003). Plenty of home fruits have been produced by cycling forest ecosystem nutrients in China since the 1980s (Chen et al, 1997;Xiang and Tian, 2002).…”

Section: Introductionmentioning

confidence: 98%

Biocycle of nitrogen in a Cyclobalanopsis glauca-dominated evergreen broad-leaved forest in East China

et al. 2006

Front. Forest. China

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The nitrogen (N) cycling was elucidated in a 40-year-old subtropical evergreen broad-leaved forest dominated by Cyclobalanopsis glauca growing on red soil in Zhejiang Province, East China. The concentrations of N in the representative species ranged from 0.49% to 1.64%, the order of which in various layers was liana and herb layers > understory layer > tree and subtree layers; in various organs was leaf > branch > root > trunk; and aboveground parts > underground parts. The sequence of the concentrations of N in C. glauca was understory > tree > subtree layer; young and high-growing > old organs; reproductive > vegetative organs. Seasonal dynamics of the concentrations of N in C. glauca in the tree and subtree layers was comparatively stable. It was lower in autumn (October) in root, branch, and leaf in the tree layer, and low in January in the understory. There was no evident change in regularity of the concentrations of N in varying diameter classes. The concentrations of N in the litterfall, precipitation, throughfall, litter layer, and soil were 0.74%-2.30%, 0.000,038%, 0.000,09%, 1.94%, and 0.59%, respectively. The standing crop of N in the plant community was 1,025.28 kg/hm 2 , accumulation in the litter layer was 224.88 kg/hm 2 , and reserve in the soil was 55,151 kg/hm 2 . Annual retention of N was 119.47 kg/hm 2 , return was about 84.13 kg/hm 2 , among which litterfall was 78.49 kg/hm 2 and throughfall, 5.64 kg/hm 2 . Annual absorption of N was 203.60 kg/hm 2 . Annual input of N through incident precipitation was 4.88 kg/hm 2 .Compared with other forest types, cycling rate of N in the community was lower than in deciduous broad-leaved forests, rain forests, and mangroves, and was moderate in evergreen broad-leaved forests. N use efficiency of this forest was moderate among the forest types cited. According to the characteristics of the biocycle of phosphorous, it was concluded that N availability in the soil of this forest was not lower, and phosphorous not N was the limiting factor in the growth of plants in this community.

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Nutrient Cycling and Nutrient Use Efficiency in Short Rotation, High Density Central Himalayan Tarai Poplar Plantations

Cited by 19 publications

References 31 publications

Nutrient relocation, hydrological functions, and soil chemistry in plantations as compared to natural forests in central Yunnan, China

Nutrient relocation, hydrological functions, and soil chemistry in plantations as compared to natural forests in central Yunnan, China

Nutrients and energy in proleptic branches and leaves of poplar under a short-rotation coppice

Biocycle of nitrogen in a Cyclobalanopsis glauca-dominated evergreen broad-leaved forest in East China

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