Xin Song
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View article: Functionally dissimilar neighbors increase tree water use efficiency through enhancement in leaf phosphorus concentration
Functionally dissimilar neighbors increase tree water use efficiency through enhancement in leaf phosphorus concentration Open
Water use efficiency (WUE) is central to the global cycles of water and carbon. However, whether increasing tree diversity in plantation can increase WUE remain poorly understood. Here, we conduct a forest biodiversity experiment with 32 t…
View article: Environmental, Physiological and Biochemical Processes Determining the Oxygen Isotope Ratio of Tree-Ring Cellulose
Environmental, Physiological and Biochemical Processes Determining the Oxygen Isotope Ratio of Tree-Ring Cellulose Open
Analysis of the oxygen isotope ratioof tree-ring cellulose (δ 18 O cell ) is a promising tool for reconstructingpast climatic variations and their influence on terrestrial ecosystems, but control mechanisms of δ 18 O cell are multi-faceted…
View article: Mesophyll conductance exerts a significant limitation on photosynthesis during light induction
Mesophyll conductance exerts a significant limitation on photosynthesis during light induction Open
Summary Past studies have established mesophyll diffusion conductance to CO 2 ( g m ) as a variable and significant limitation to plant photosynthesis under steady‐state conditions. However, the role of g m in influencing photosynthesis ( …
View article: Combining Heat Stress with Pre-Existing Drought Exacerbated the Effects on Chlorophyll Fluorescence Rise Kinetics in Four Contrasting Plant Species
Combining Heat Stress with Pre-Existing Drought Exacerbated the Effects on Chlorophyll Fluorescence Rise Kinetics in Four Contrasting Plant Species Open
Although drought and high temperature are two main factors affecting crop productivity and forest vegetation dynamics in many areas worldwide, little work has been done to describe the effects of heat combined with pre-existing drought on …
View article: Reply to Evaristo et al.: Strong evidence for the need of correcting extraction bias in an early study of ecohydrological separation
Reply to Evaristo et al.: Strong evidence for the need of correcting extraction bias in an early study of ecohydrological separation Open
Micro-nano plastics originating from the prevalent usage of plastics have raised increasingly alarming concerns worldwide. However, there remains a fundamental knowledge gap in nanoplastics because of the lack of effective analytical ...Pl…
View article: Reply to Zhao: The demonstrated magnitude of artifact during stem water extraction signals a clear need for deuterium correction
Reply to Zhao: The demonstrated magnitude of artifact during stem water extraction signals a clear need for deuterium correction Open
Official COVID-19 mortality statistics have not fully captured deaths attributable to SARS-CoV-2 infection in the United States. While some excess deaths were likely related to pandemic health care interruptions and socioeconomic disruptio…
View article: Stem water cryogenic extraction biases estimation in deuterium isotope composition of plant source water
Stem water cryogenic extraction biases estimation in deuterium isotope composition of plant source water Open
Significance Stem xylem uptake and transport of plant source water is widely considered a critical component of the global water cycle. The deuterium signature of cryogenically extracted plant stem water (δ 2 H stem_CVD ) provides a useful…
View article: Author response for "Leaf Transition from Heterotrophy to Autotrophy is Recorded in the Intraleaf C, H and O Isotope Patterns of Leaf Organic Matter"
Author response for "Leaf Transition from Heterotrophy to Autotrophy is Recorded in the Intraleaf C, H and O Isotope Patterns of Leaf Organic Matter" Open
View article: Plant's‐eye view of temperature governs elevational distributions
Plant's‐eye view of temperature governs elevational distributions Open
Explaining species geographic distributions by macroclimate variables is the most common approach for getting mechanistic insights into large‐scale diversity patterns and range shifts. However, species' traits influencing biophysical proce…
View article: The role of leaf water potential in the temperature response of mesophyll conductance
The role of leaf water potential in the temperature response of mesophyll conductance Open
Summary Variation in temperature ( T ) is usually accompanied by changes in leaf water potential (Ψ leaf ), which may influence mesophyll conductance ( g m ). However, the effects of Ψ leaf on g m have not yet been considered in models of …
View article: Empirical and model-based estimates of spatial and temporal variations in net primary productivity in semi-arid grasslands of Northern China
Empirical and model-based estimates of spatial and temporal variations in net primary productivity in semi-arid grasslands of Northern China Open
Spatiotemporal variations in net primary productivity (NPP) reflect the dynamics of water and carbon in the biosphere, and are often closely related to temperature and precipitation. We used the ecosystem model known as the Carnegie-Ames-S…
View article: Empirical and model-based estimates of spatial and temporalvariations in net primary productivity in semi-arid grasslands ofNorthern China
Empirical and model-based estimates of spatial and temporalvariations in net primary productivity in semi-arid grasslands ofNorthern China Open
Spatiotemporal variations in net primary productivity (NPP) of vegetation offer insights to surface water and carbon dynamics, and are closely related to temperature and precipitation. We employed the Carnegie-Ames-Stanford Approach ecosys…
View article: Leaf vein fraction influences the Péclet effect and <sup>18</sup>O enrichment in leaf water
Leaf vein fraction influences the Péclet effect and <sup>18</sup>O enrichment in leaf water Open
The process of evaporation results in the fractionation of water isotopes such that the lighter 16 O isotope preferentially escapes the gas phase leaving the heavier 18 O isotope to accumulate at the sites of evaporation. This applies to t…
View article: Leaf water oxygen isotope measurement by direct equilibration
Leaf water oxygen isotope measurement by direct equilibration Open
Summary The oxygen isotope composition of leaf water imparts a signal to a range of molecules in the atmosphere and biosphere, but has been notoriously difficult to measure in studies requiring a large number of samples as a consequence of…
View article: Divergent variations in concentrations of chemical elements among shrub organs in a temperate desert
Divergent variations in concentrations of chemical elements among shrub organs in a temperate desert Open
Desert shrubs, a dominant component of desert ecosystems, need to maintain sufficient levels of nutrients in their different organs to ensure operation of various physiological functions for the purpose of survival and reproduction. In the…
View article: Stable isotopes in leaf water of terrestrial plants
Stable isotopes in leaf water of terrestrial plants Open
Leaf water contains naturally occurring stable isotopes of oxygen and hydrogen in abundances that vary spatially and temporally. When sufficiently understood, these can be harnessed for a wide range of applications. Here, we review the cur…
View article: Modelling non‐steady‐state isotope enrichment of leaf water in a gas‐exchange cuvette environment
Modelling non‐steady‐state isotope enrichment of leaf water in a gas‐exchange cuvette environment Open
The combined use of a gas‐exchange system and laser‐based isotope measurement is a tool of growing interest in plant ecophysiological studies, owing to its relevance for assessing isotopic variability in leaf water and/or transpiration und…
View article: Observed relationships between leaf H218O Peclet effective length and leaf hydraulic conductance reflect assumptions in Craig-Gordon model calculations
Observed relationships between leaf H218O Peclet effective length and leaf hydraulic conductance reflect assumptions in Craig-Gordon model calculations Open
Stable oxygen isotope techniques may be a useful tool to investigate the pathways of water movement within leaves. However, implementation of such methods is limited due to uncertainty in the effective path length (L) for the Péclet effect…