Rates of Litter Decomposition and Soil Respiration in Relation to Soil Temperature and Water in Different-Aged Pinus massoniana Forests in the Three Gorges Reservoir Area, China

Xiao, Wei; Ge, Xiaogai; Zeng, Lixiong; Huang, Zhilin; Lei, Jing-Pin; Zhou, Benzhi; Li, Mai‐He

doi:10.1371/journal.pone.0101890

Cited by 61 publications

(39 citation statements)

References 65 publications

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“…Most carabids are active on the ground, some species lay eggs in burrows, and others overwinter as larvae or as adults in the soil. For these reasons, soil properties, such as softness, water content, temperature, etc., influence the carabid community [21,[59][60][61][62]. Microclimatic conditions affect carabid assemblages, particularly through different species affinities for moisture, sunlight, and warmth.…”

Section: Discussionmentioning

confidence: 99%

“…As regards the influence of soil factors on diversity and dominance, we found that soil litter positively influenced diversity and evenness, and negatively influenced dominance, in the desert steppe. Carabids are known to be influenced by the amount of soil litter, because it modulates both soil moisture and temperature, and improves fertility, food availability, and habitat heterogeneity [21][22][23]61]. These important functions are further enhanced in desert ecosystems, where vegetable detritus represents a prominent trophic source.…”

Section: Discussionmentioning

confidence: 99%

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Influence of Climate and Local Habitat Characteristics on Carabid Beetle Abundance and Diversity in Northern Chinese Steppes

Tsafack

Xie

Wang

et al. 2019

Insects

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Carabids are an important insect group in grassland ecosystems and are involved in numerous ecosystem services. Steppes are the most widespread ecosystems in China, but they are under increasing degradation. Despite their importance, little is known about the relationships between environmental variables and carabid community structure in Chinese steppes. We studied the effects of fine-scale factors (soil and vegetation) and coarse-scale factors (climate) on carabid community parameters (abundance, richness, diversity, dominance, and evenness) in three types of steppes (desert, typical, and meadow steppes) in northern China. Carabid communities responded to environmental factors in different ways according to the type of steppe. Climate factors were the most important drivers of community structure, whereas the effects of soil and vegetation were less important. Desert steppe showed the lowest carabid abundance, richness, diversity, and evenness, and the highest dominance. This community is relatively simple and strongly dominated by a few species adapted to the severe conditions of this environment. Typical and meadow steppes showed carabid communities with a more complex structure. As expected on the basis of environmental severity, the most severe ecosystem (i.e., the desert) was only influenced by climatic factors, whereas a certain influence of biotic factors emerged in the other ecosystems.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Influence of Climate and Local Habitat Characteristics on Carabid Beetle Abundance and Diversity in Northern Chinese Steppes

Tsafack

Xie

Wang

et al. 2019

Insects

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“…First, SOC content in tidal field before afforestation (for example, only 5.30 g kg -1 ) is far lower than that in agricultural land and abandoned land in the same area (11.10, 14.47 g kg -1 , respectively) [3]. Second, the study site was located in the edge of north subtropical monsoon climate area, which had high litter decomposition rate and soil respiration rate due to the high temperature and humidity, accelerating decomposition speed of organic substance and reducing the content of SOC in soil [44]. While, the SOC stocks approaches the average of natural forests in China after 33 years of afforestation for M. glyptostroboides, which shows a significant C sequestration for afforestation in coastal China.…”

Section: Discussionmentioning

confidence: 89%

Soil organic carbon content and stocks in an age-sequence of Metasequoia glyptostroboides plantations in coastal area, East China

Zhang¹,

Zhang²,

Yu³

et al. 2016

Proceedings of the 2015 4th International Conference on Sustainable Energy and Environmental Engineering

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Abstract. Information on soil organic carbon (SOC) content and stocks is not available in coastal shelter forests, East China, although a large area of forests has been established there in the past 30 years. Dawn Redwood (Metasequoia glyptostroboides) is one of the most commonly tree species for shelter plantation in eastern coasts of China, but it is unknown on the temporal distribution of SOC content and stock in the M. glyptostroboides plantations. In this study, SOC contents and stocks, and soil properties were determined in an age-sequence (23, 27, and 33 years old) of M. glyptostroboides plantations in Shanghai, East China. SOC content and stocks increased gradually with the increasing stand age, and the total SOC stocks in the depth of 0-100 cm increased by 53.20% with stand age from 23 to 33 years stand. Meanwhile, SOC showed good relationships with soil physical properties (such as soil particle composition) and chemical properties (such as soil nitrogen and potassium concentrations). Our results indicate that afforestation with M. glyptostroboides can promote SOC content and stocks and improve nutrient conditions in coastal lands, and provide data for estimating ecosystem carbon stocks of coastal shelter forests in China.

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“…Litter contributions to soil respiration exceeding 50 % have been reported in the literature (e.g. Xiao et al, 2014).…”

Section: Model Selection and Imputationmentioning

confidence: 99%

Interactions between nocturnal turbulent flux, storage and advection at an “ideal” eucalypt woodland site

et al. 2017

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Abstract. While the eddy covariance technique has become an important technique for estimating long-term ecosystem carbon balance, under certain conditions the measured turbulent flux of CO 2 at a given height above an ecosystem does not represent the true surface flux. Profile systems have been deployed to measure periodic storage of CO 2 below the measurement height, but have not been widely adopted. This is most likely due to the additional expense and complexity and possibly also the perception, given that net storage over intervals exceeding 24 h is generally negligible, that these measurements are not particularly important. In this study, we used a 3-year record of net ecosystem exchange of CO 2 and simultaneous measurements of CO 2 storage to ascertain the relative contributions of turbulent CO 2 flux, storage, and advection (calculated as a residual quantity) to the nocturnal CO 2 balance and to quantify the effect of neglecting storage. The conditions at the site are in relative terms highly favourable for eddy covariance measurements, yet we found a substantial contribution (∼ 40 %) of advection to nocturnal turbulent flux underestimation. The most likely mechanism for advection is cooling-induced drainage flows, the effects of which were observed in the storage measurements. The remaining ∼ 60 % of flux underestimation was due to storage of CO 2 . We also showed that substantial underestimation of carbon uptake (approximately 80 gC m −2 a −1 , or 25 % of annual carbon uptake) arose when standard methods (u * filtering) of nocturnal flux correction were implemented in the absence of storage estimates. These biases were reduced to approximately 40-45 gC m −2 a −1 when the filter was applied over the entire diel period, but they were nonetheless large relative to quantifiable uncertainties in the data. Neglect of storage also distorted the relationships between the CO 2 exchange processes (respiration and photosynthesis) and their key controls (light and temperature respectively). We conclude that the addition of storage measurements to eddy covariance sites with all but the lowest measurement heights should be a high priority for the flux measurement community.

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Rates of Litter Decomposition and Soil Respiration in Relation to Soil Temperature and Water in Different-Aged Pinus massoniana Forests in the Three Gorges Reservoir Area, China

Cited by 61 publications

References 65 publications

Influence of Climate and Local Habitat Characteristics on Carabid Beetle Abundance and Diversity in Northern Chinese Steppes

Influence of Climate and Local Habitat Characteristics on Carabid Beetle Abundance and Diversity in Northern Chinese Steppes

Soil organic carbon content and stocks in an age-sequence of Metasequoia glyptostroboides plantations in coastal area, East China

Interactions between nocturnal turbulent flux, storage and advection at an “ideal” eucalypt woodland site

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