Plant Water Use Strategy in Response to Spatial and Temporal Variation in Precipitation Patterns in China: A Stable Isotope Analysis

Zhao, Ying; Wang, Li

doi:10.3390/f9030123

Cited by 24 publications

(18 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As shown in Figure 3c, for the same type of plant, the slope of the PWL and the LEL of trees were 3.66 and 1.83, respectively, and the intercepts were −39.23% and −30.37% ; the slopes of the PWL and the LEL of shrubs were 4.23 and 1.70, respectively, and the intercepts were −37.67% and −30.04% ; the slope of the PWL and the LEL of herbs were 2.94 and 2.00, respectively, and the intercepts were −36.19% and −27.11% . A smaller slope indicates a stronger non-equilibrium kinetic fractionation process, due to evaporation [7]. We also compared the isotopic composition of xylem water and leaf water of different types of plants.…”

Section: Isotopic Composition Of Plant Xylem Water and Leaf Watermentioning

confidence: 99%

“…The stable isotopic composition of precipitation can be used to deduce the regional water vapor sources, sub-cloud secondary evaporation, and water vapor recycling [4][5][6]. Furthermore, comparisons with the isotopic composition of different water bodies, like soil water, river water, and plant water, can help us to understand the recharge relationship between them, as well as the precipitation infiltration mechanism at the regional and local scale [7,8].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Stable Isotopic Composition of Different Water Bodies at the Soil–Plant–Atmosphere Continuum (SPAC) of the Western Loess Plateau, China

Che

Zhang

Argiriou

et al. 2019

Water

View full text Add to dashboard Cite

Understanding the isotopic composition and interrelations of different water bodies at the soil–plant–atmosphere continuum (SPAC) is crucial to reveal the processes and mechanisms of regional water cycles. Rainfall, river water, plant, and soil samples from Lanzhou City, China, were collected from April to October 2016. The hydrogen (δ2H) and oxygen (δ18O) of the local precipitation, river water, soil water, plant xylem water, and leaf water were determined. We found that trees mainly uptake the middle (30–60 cm) and deep (60–100 cm) layer soil water during the growing season, and the shrubs mainly uptake the middle soil water. All herbs uptake the shallow soil water (0–30 cm) during the growing season. The δ18O of shallow soil water was found to be isotopic-enriched because of evaporation and exhibited a decline from the shallow soil layer towards the deeper layer. The variation of δ18O and soil water content (SWC) was remarkable in shallow soil, which was mainly due to evaporation and precipitation infiltration, while water in the middle and deep layer was less affected by these phenomena.

show abstract

Section: Isotopic Composition Of Plant Xylem Water and Leaf Watermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Stable Isotopic Composition of Different Water Bodies at the Soil–Plant–Atmosphere Continuum (SPAC) of the Western Loess Plateau, China

Che

Zhang

Argiriou

et al. 2019

Water

View full text Add to dashboard Cite

show abstract

“…In many cases, the primary source of plant transpiration is soil water extracted from different depths by vegetation through roots (Asbjornsen et al, ; Gardner & Ehlig, ). Plants can access shallow and deep soil water, as well as groundwater with a tendency to prioritize the use of stable and continuous water sources (Zhao & Wang, ), at least in regions where some sources are continuously available. Several studies based on an isotope approach and focusing on the identification of different water sources accessed by plants have been conducted at individual sites in many regions of the world and on different plant species (e.g., to name a few recent studies, Allen, Kirchner, Braun, Siegwolf, & Goldsmith, ; Chi, Zhou, Yang, Li, & Zheng, ; Dubbert, Caldeira, Dubbert, & Werner, ; Evaristo et al, ; Nie et al, ; Oerter, Siebert, Bowling, & Bowen, ; Qiu et al, ).…”

Section: Introductionmentioning

confidence: 99%

Depth distribution of soil water sourced by plants at the global scale: A new direct inference approach

et al. 2020

View full text Add to dashboard Cite

The depth distribution of soil water contributions to plant water uptake is poorly known. Here we evaluate the main water sources used by plants at the global scale and the effect of climate and plant groups on water uptake variability and depth distribution. The global meta‐analysis is based on isotope data (δ2H and δ18O) extracted from 65 peer‐reviewed papers published between 1990 and 2017. We applied a new direct inference method to quantify the overlap between xylem water and soil water sources used by plants. The median overlap between xylem water and soil water at different depths varied between 28% and 100%, but they were generally >50%. The shallow (0‐10 cm) soil water overlap with xylem water was largest in cold regions (100% ± 0%) and lowest at tropical sites (about 28%). Conversely, the median overlap between xylem water and deep soil water was largest in the arid and the tropical zones (>75%) and much smaller in the temperate and cold zones. Our results suggest that the isotopic composition of xylem water reflects mostly the signature of shallow soil water (<30 cm) in the cold and the temperate zones, whereas in the arid and the tropical zones, plants appear to exploit water in deeper soil layers. Our novel, simple statistically‐based direct inference method performed well in determining these differences in water sources, and can be applied more widely to isotope‐based plant water uptake studies.

show abstract

“…It is an unstable process [3,4]. The vegetation and the planting patterns also play an important role in the global water cycle [5,6]. The rainfed Weibei Tableland on the Loess Plateau is a typical dry farming area where soil water content (SWC) is a useful indicator in such a water-limited region [7].…”

Section: Introductionmentioning

confidence: 99%

The Soil Water Condition of a Typical Agroforestry System under the Policy of Northwest China

Zhang

Wang

2018

Forests

Self Cite

View full text Add to dashboard Cite

The number of mixed cropland—apple orchard system has gradually increased in the Changwu Tableland region of the Loess Plateau, China. However, the soil water content (SWC) is not sufficient to maintain the sustainable development of apple trees in this agroforestry system. It is unclear whether the growing fruit trees would compete with crops for soil water. To systematically analyze the temporal and spatial distribution of soil moisture and to understand the effect of orchard hydrology in that cropland, the SWC was measured at different depths at different locations on cropland and in an apple orchard. The results show that: (1) The SWC of each soil layer in the cropland (0–20, 20–60, 60–100, 100–200, 200–300 cm) is higher than that of the orchard. The soil moisture changes dramatically in the 0–200 cm soil layer. (2) As the soil moisture monitoring distance from the apple orchard increases, the SWC gradually increases, the loss of soil water storage gradually decreases, and the drying effect gradually disappears. This is related to the different distribution ranges of the roots of apple trees and crops. Therefore, the government should control the proportion of the orchard and cropland, and then adjust the planting period of the orchard in the appropriate range to keep the green use of water in the region.

show abstract

Plant Water Use Strategy in Response to Spatial and Temporal Variation in Precipitation Patterns in China: A Stable Isotope Analysis

Cited by 24 publications

References 60 publications

The Stable Isotopic Composition of Different Water Bodies at the Soil–Plant–Atmosphere Continuum (SPAC) of the Western Loess Plateau, China

The Stable Isotopic Composition of Different Water Bodies at the Soil–Plant–Atmosphere Continuum (SPAC) of the Western Loess Plateau, China

Depth distribution of soil water sourced by plants at the global scale: A new direct inference approach

The Soil Water Condition of a Typical Agroforestry System under the Policy of Northwest China

Contact Info

Product

Resources

About