Ecological stoichiometric characteristics and element reserves of three stands in a closed forest on the Chinese loess plateau.
Identifieur interne : 001975 ( Main/Corpus ); précédent : 001974; suivant : 001976Ecological stoichiometric characteristics and element reserves of three stands in a closed forest on the Chinese loess plateau.
Auteurs : Yuanbo Cao ; Baitian Wang ; Tingting Wei ; Hua MaSource :
- Environmental monitoring and assessment [ 1573-2959 ] ; 2016.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Phosphorus, Trace Elements.
- chemistry : Plant Leaves, Soil.
- Conservation of Natural Resources, Ecology, Ecosystem, Environmental Monitoring, Forests, Pinus, Plant Roots, Populus, Trees.
Abstract
Populus davidiana, Leuchtenbergia principis, and Pinus tabulaeformis are important greening tree species with a cosmopolitan distribution. However, the stoichiometric characteristics and element reserves of stands of these three species are not particularly clear. In this study, we conducted a plot-level investigation of forest stands of these species in the loess area; these have been closed forest stands more than 28 years. Trees were sampled from an area of 50 m × 20 m (in 6, 8, and 9 plots, respectively), which was sufficient for shrub (2 m × 2 m), herbal species, and litter (1 m × 1 m) investigations. The C, N, and P concentrations and the C:N:P stoichiometry in five different soil layers (0-10 cm, 10-20 cm, 20-30 cm, 30-50 cm, and 50-100 cm) and in the leaves, stems, branches, and roots of the plants were examined. The soil element concentrations and density were affected by soil depth. The element content had a significantly negative correlation with soil depth, and element density differed significantly among the soil layers. A particular element in a particular organ differed significantly between the forest stands, and the same element in different organs of the same stand was also significantly different. The C, N, and P element reserves in the soil were considerably higher than in the plants. Our results indicate that there are different stoichiometric characteristics and element reserves of the three stands in a closed forest on the Chinese loess plateau, which may provide a reference when we develop and optimize the structure of forest stands.
DOI: 10.1007/s10661-015-5057-6
PubMed: 26739010
Links to Exploration step
pubmed:26739010Le document en format XML
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<author><name sortKey="Wang, Baitian" sort="Wang, Baitian" uniqKey="Wang B" first="Baitian" last="Wang">Baitian Wang</name>
<affiliation><nlm:affiliation>College of Soil and Water Conservation, Beijing Forestry University, Beijing, 100083, People's Republic of China. 13910595782@163.com.</nlm:affiliation>
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<author><name sortKey="Wei, Tingting" sort="Wei, Tingting" uniqKey="Wei T" first="Tingting" last="Wei">Tingting Wei</name>
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<term>Environmental Monitoring (MeSH)</term>
<term>Forests (MeSH)</term>
<term>Phosphorus (analysis)</term>
<term>Pinus (MeSH)</term>
<term>Plant Leaves (chemistry)</term>
<term>Plant Roots (MeSH)</term>
<term>Populus (MeSH)</term>
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<term>Ecology</term>
<term>Ecosystem</term>
<term>Environmental Monitoring</term>
<term>Forests</term>
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<front><div type="abstract" xml:lang="en">Populus davidiana, Leuchtenbergia principis, and Pinus tabulaeformis are important greening tree species with a cosmopolitan distribution. However, the stoichiometric characteristics and element reserves of stands of these three species are not particularly clear. In this study, we conducted a plot-level investigation of forest stands of these species in the loess area; these have been closed forest stands more than 28 years. Trees were sampled from an area of 50 m × 20 m (in 6, 8, and 9 plots, respectively), which was sufficient for shrub (2 m × 2 m), herbal species, and litter (1 m × 1 m) investigations. The C, N, and P concentrations and the C:N:P stoichiometry in five different soil layers (0-10 cm, 10-20 cm, 20-30 cm, 30-50 cm, and 50-100 cm) and in the leaves, stems, branches, and roots of the plants were examined. The soil element concentrations and density were affected by soil depth. The element content had a significantly negative correlation with soil depth, and element density differed significantly among the soil layers. A particular element in a particular organ differed significantly between the forest stands, and the same element in different organs of the same stand was also significantly different. The C, N, and P element reserves in the soil were considerably higher than in the plants. Our results indicate that there are different stoichiometric characteristics and element reserves of the three stands in a closed forest on the Chinese loess plateau, which may provide a reference when we develop and optimize the structure of forest stands.</div>
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<Abstract><AbstractText>Populus davidiana, Leuchtenbergia principis, and Pinus tabulaeformis are important greening tree species with a cosmopolitan distribution. However, the stoichiometric characteristics and element reserves of stands of these three species are not particularly clear. In this study, we conducted a plot-level investigation of forest stands of these species in the loess area; these have been closed forest stands more than 28 years. Trees were sampled from an area of 50 m × 20 m (in 6, 8, and 9 plots, respectively), which was sufficient for shrub (2 m × 2 m), herbal species, and litter (1 m × 1 m) investigations. The C, N, and P concentrations and the C:N:P stoichiometry in five different soil layers (0-10 cm, 10-20 cm, 20-30 cm, 30-50 cm, and 50-100 cm) and in the leaves, stems, branches, and roots of the plants were examined. The soil element concentrations and density were affected by soil depth. The element content had a significantly negative correlation with soil depth, and element density differed significantly among the soil layers. A particular element in a particular organ differed significantly between the forest stands, and the same element in different organs of the same stand was also significantly different. The C, N, and P element reserves in the soil were considerably higher than in the plants. Our results indicate that there are different stoichiometric characteristics and element reserves of the three stands in a closed forest on the Chinese loess plateau, which may provide a reference when we develop and optimize the structure of forest stands.</AbstractText>
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