Ecological Stoichiometric Characteristics of Two Typical Plantations in the Karst Ecosystem of Southwestern China

Pang, Danbo; Wang, Genzhu; Li, Guijing; Sun, Yonglei; Li, Hui; Zhou, Jinxing

doi:10.3390/f9020056

Cited by 28 publications

(23 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…PRE may largely depend on P availability in soils [13,48]. For example, a negative correlation between PRE and soil P was found in planted forests [27,33,49]. Those results suggest that NRE and PRE are differentially regulated by climate and soil nutrient availability.…”

Section: Nutrient Resorption Patterns In Planted Forestsmentioning

confidence: 73%

See 1 more Smart Citation

Nitrogen and Phosphorus Resorption in Planted Forests Worldwide

Jiang

Geng

et al. 2019

Forests

View full text Add to dashboard Cite

Nutrient resorption from senescing leaves is one of the plants’ essential nutrient conservation strategies. Parameters associated with resorption are important nutrient-cycling constraints for accurate predictions of long-term primary productivity in forest ecosystems. However, we know little about the spatial patterns and drivers of leaf nutrient resorption in planted forests worldwide. By synthesizing results of 146 studies, we explored nitrogen (N) and phosphorus (P) resorption efficiency (NRE and PRE) among climate zones and tree functional types, as well as the factors that play dominant roles in nutrient resorption in plantations globally. Our results showed that the mean NRE and PRE were 58.98% ± 0.53% and 60.21% ± 0.77%, respectively. NRE significantly increased from tropical to boreal zones, while PRE did not significantly differ among climate zones, suggesting differential impacts of climates on NRE and PRE. Plant functional types exert a strong influence on nutrient resorption. Conifer trees had higher PRE than broadleaf trees, reflecting the adaptation of the coniferous trees to oligotrophic habitats. Deciduous trees had lower PRE than evergreen trees that are commonly planted in P-limited low latitudes and have long leaf longevity with high nutrient use efficiency. While non-N-fixing trees had higher NRE than N-fixing trees, the PRE of non-N-fixing trees was lower than that of N-fixing trees, indicating significant impact of the N-fixing ability on the resorption of N and P. Our multivariate regression analyses showed that variations in NRE were mainly regulated by climates (mean annual precipitation and latitude), while variations in PRE were dominantly controlled by green leaf nutrient concentrations (N and P). Our results, in general, suggest that the predicted global warming and changed precipitation regimes may profoundly affect N cycling in planted forests. In addition, green leaf nutrient concentrations may be good indicators for PRE in planted forests.

show abstract

Section: Nutrient Resorption Patterns In Planted Forestsmentioning

confidence: 73%

“…than for the broadleaf Eucalyptus maideni F. Muell. [33]. Much uncertainty still surrounds the global patterns of nutrient resorption efficiency of plantations across different climate zones and functional groups.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen and Phosphorus Resorption in Planted Forests Worldwide

Jiang

Geng

et al. 2019

Forests

View full text Add to dashboard Cite

show abstract

“…Sample plots were selected to represent local vegetation types (Pinus Yunnanensis plantation forestland, secondary forestland, and natural grassland) and growth conditions and have relatively consistent site conditions (e.g., elevation, slope position, and slope). Secondary and plantation forests with a stable soil structure and reduced disturbance were selected [33]. The recovery time of the three kinds of woodlands was more than 20 years.…”

Section: Dyeing Experimentsmentioning

confidence: 99%

“…Among them, the dyeing tracer method has become the most widely used preferential flow research method because it can visually and clearly reflect the region through the dyeing water flows. As a dye tracer, Brilliant Blue can visually show the distribution of non-uniform flow (preferential flow) in soil [33].…”

Section: Introductionmentioning

confidence: 99%

Effects of Grass and Forests and the Infiltration Amount on Preferential Flow in Karst Regions of China

Kan

Cheng

et al. 2019

Water

View full text Add to dashboard Cite

Preferential flow is an important water infiltration phenomenon in karst regions. The response of preferential flow to vegetation restoration requires urgent investigation due to the special soil structure of karst regions. In order to study the effect of vegetation restoration on water movement in karst regions, four kinds of ponded water infiltration experiments were carried out in Pinus Yunnanensis plantation forestland, secondary forestland, and natural grassland. A brilliant blue dyeing experiment was conducted to visualize the distribution of water infiltration in soil (a total of 150 stained images from vertical soil slices). Results showed that the average depth of matrix flow in natural grassland was approximately six times those in plantation and secondary forestlands. An increase in matrix flow will have a negative effect on the development of preferential flow. Water transported in preferential flow paths affects the distribution of nutrients and organic matter in the soil. However, preferential flow in grassland can promote the accumulation of available nutrients, and preferential flow in plantations can inhibit the loss of organic matter. Preferential flow in grasslands and forest plantations is less than that in native forests soils. Preferential flow increases the percolation of water in soils. The effect is that preferential flow can obstructs water uptake by the roots under low rainfall conditions, and decreases surface runoff before soil saturation under high rainfall conditions. In the process of nutrient element migration, preferential flow has a good contribution, which is conducive to the migration and accumulation of elements required for surface vegetation growth. The contribution of preferential flow needs to be considered in studies on vegetation restoration planning and land degradation.

show abstract

“…Patterns of leaf stoichiometry play a vital role in studying biological nutrient dynamics, biological symbiosis relationship, microbial nutrition, judgment of restrictive elements, consumer-driven nutrient cycle, and global C, N, P biogeochemical cycles [1][2][3][4][5]. The mechanisms of leaf stoichiometry in forests and their relationship to the environment conditions have attracted the attention of many scholars in recent years [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Leaf Nitrogen and Phosphorus Stoichiometry of Cyclocarya paliurus across China

Liu

Wang

et al. 2018

Forests

View full text Add to dashboard Cite

Leaf stoichiometry (nitrogen (N), phosphorus (P) and N:P ratio) is not only important for studying nutrient composition in forests, but also reflects plant biochemical adaptation to geographic and climate conditions. However, patterns of leaf stoichiometry and controlling factors are still unclear for most species. In this study, we determined leaf N and P stoichiometry and their relationship with soil properties, geographic and climate variables for Cyclocarya paliurus based on a nation-wide dataset from 30 natural populations in China. The mean values of N and P concentrations and N:P ratios were 9.57 mg g−1, 0.91 mg g−1 and 10.51, respectively, indicating that both leaf N and P concentrations in C. paliurus forests were lower than those of China and the global flora, and almost all populations were limited in N concentration. We found significant differences in leaf N and P concentrations and N:P ratios among the sampled C. paliurus populations. However, there were no significant correlations between soil properties (including organic C, total N and P concentrations) and leaf stoichiometry. The pattern of variation in leaf N concentration across the populations was positively correlated with latitude (24.46° N–32.42° N), but negatively correlated with mean annual temperature (MAT); meanwhile, leaf N concentration and N:P ratios were negatively correlated with mean temperature in January (MTmin) and mean annual frost-free period (MAF). Together, these results suggested that temperature-physiological stoichiometry with a latitudinal trend hold true at both global and regional levels. In addition, the relationships between leaf stoichiometry and climate variables provided information on how leaf stoichiometry of this species may respond to climate change.

show abstract

Ecological Stoichiometric Characteristics of Two Typical Plantations in the Karst Ecosystem of Southwestern China

Cited by 28 publications

References 53 publications

Nitrogen and Phosphorus Resorption in Planted Forests Worldwide

Nitrogen and Phosphorus Resorption in Planted Forests Worldwide

Effects of Grass and Forests and the Infiltration Amount on Preferential Flow in Karst Regions of China

Leaf Nitrogen and Phosphorus Stoichiometry of Cyclocarya paliurus across China

Contact Info

Product

Resources

About