Coupling the water use of Populus euphratica and Tamarix ramosissima and evapotranspiration partitioning in a desert riparian forest ecosystem

Sun, Huifeng; Wang, Pei; Chen, Qi; Zhang, David; Xing, Yuhua

doi:10.1016/j.agrformet.2022.109064

Cited by 7 publications

(6 citation statements)

References 43 publications

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“…Average height and species abundance were the highest at 10.26 m groundwater depth, and it may be due to the soils at 10.26 m groundwater depth having better soil conditions. Because previous studies have reported that plant communities are tightly coupled with hydrological processes, the ideal groundwater depth for plant growth is not the lowest groundwater table ( Gorai et al., 2010 ; Zhu et al., 2012 ; Sun et al., 2020 ; Bai et al., 2021 ; Sun et al., 2022 ). Wang obtained different results and demonstrated that the growth and abundance of vegetation communities will decrease at groundwater depths greater than 6 m due to herb vegetation that could hardly exist ( Wang et al., 2021c ).…”

Section: Discussionmentioning

confidence: 99%

Impact of deeper groundwater depth on vegetation and soil in semi-arid region of eastern China

et al. 2023

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IntroductionUnderstanding the impact of deep groundwater depth on vegetation communities and soil in sand dunes with different underground water tables is essential for ecological restoration and the conservation of groundwater. Furthermore, this understanding is critical for determining the threshold value of groundwater depth that ensures the survival of vegetation.MethodThis paper was conducted in a semi-arid region in eastern China, and the effects of deep groundwater depth (6.25 m, 10.61 m, and 15.26 m) on vegetation communities and soil properties (0–200 cm) across three dune types (mobile, semi-fixed, and fixed dunes) were evaluated in a sand ecosystem in the Horqin Sandy Land.ResultsFor vegetation community, variations in the same species are more significant at different groundwater depths. For soil properties, groundwater depth negatively influences soil moisture, total carbon, total nitrogen, available nitrogen, available phosphorus concentrations, and soil pH. Besides, groundwater depth also significantly affected organic carbon and available potassium concentrations. In addition, herb species were mainly distributed in areas with lower groundwater depth, yet arbor and shrub species were sparsely distributed in places with deeper groundwater depth.DiscussionAs arbor and shrub species are key drivers of ecosystem sustainability, the adaptation of these dominant species to increasing groundwater depth may alleviate the negative effects of increasing groundwater depth; however, restrictions on this adaptation were exceeded at deeper groundwater depth.

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Section: Discussionmentioning

confidence: 99%

Impact of deeper groundwater depth on vegetation and soil in semi-arid region of eastern China

et al. 2023

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“…The desert riparian ecosystem, primarily situated along the floodplains of Central Asian rivers, plays a pivotal role in biodiversity conservation and serves as a protective bulwark against desertification, serving as an ecological refuge (Cole et al, 2020;Sun et al, 2022) [1,2]. The land use and land cover (LULC) type of a desert riparian ecosystem typically encompasses arboreal forests, shrubberies, and grassland, which regularly undergo dynamic rotations and changes [3].…”

Section: Introductionmentioning

confidence: 99%

Increased Humidity Improved Desert Riparian Ecosystems in the Tarim River Basin, Northwest China, from 1990 to 2020

Guo,

Zhu,

Tang

et al. 2023

Sustainability

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Land use and land cover change (LULCC), along with the conversion of natural ecosystem cover into farmland, poses significant ecological challenges for desert riparian ecosystems. The Tarim River Basin (TRB), home to the world’s largest and most densely distributed and well-preserved desert riparian ecosystem, remains exceptionally susceptible to climate change. However, our understanding of the role of climatic factors (mean annual temperature (MAT); mean temperature during the warmest month (MWMT); relative humidity in September, October, and November (RH_SON); and the annual heat–moisture index (AHM)) in driving pattern changes in these ecosystems remains limited. To address this gap, we employed a transfer matrix approach coupled with geographically weighted regression models to conduct an extensive analysis of LULCC trends and their driving factors within the TRB from 1990 to 2020. The 30-year dataset on LULCC provided invaluable insights, revealing that the proliferation of farmland and shrubberies has precipitated the decline of arbor forests and grassland expanses. Furthermore, this expansion of farmland and shrubberies has resulted in heightened ecosystem fragmentation, particularly notable between 2005 and 2010. Our assessment indicates that artificial ecosystems are gradually transitioning back into natural states, encompassing 8.24% of the total area, chiefly attributed to the expanding shrubbery regions. Additionally, in-depth scrutiny of the impacts of climatic factors on ecosystem structure unveiled that moisture exerts the most pronounced influence on ecosystem patterns, followed by air moisture content during the growing season, while temperature exerts a relatively lesser impact. Overall, this study contributes to the realization of SDG 13 (Climate Action) and SDG 15 (Life on Land) by informing conservation efforts and sustainable land management practices in dryland desert riparian ecosystems.

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“…It is a forest ecosystem with relatively single species in desert environment. They play an important role in wind prevention and sand fixation and maintaining the balance and stability of ecosystems in arid areas (Keyimu et al, 2018;Sun et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Effect evaluation of ecological water conveyance in Tarim River Basin, China

Jiao

Wang

Ling

et al. 2022

Front. Environ. Sci.

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Ecological water conveyance is an important way to promote the restoration of degraded ecosystems in arid watersheds. However, there are few previous research results on how to quantitatively evaluate the effect of ecological water conveyance on ecological restoration. In this regard, this paper selects the Tarim River Basin as a typical area, analyzing the changes of desert riparian vegetation and hydrological elements, constructing a watershed ecological environment quality evaluation system, and comprehensively evaluating the ecological water conveyance effect of the damaged desert forest ecosystem. The conclusion showed that the proportion of the pixel area with an upward trend of Fractional Vegetation Cover (FVC) from 2000 to 2021 is as high as 84.3%. The plant diversity index in the ecological water conveyance area showed the characteristics of first obvious increase and then stable. The main body of groundwater depth showed an upward trend, and the Temperature Vegetation Dryness Index (TVDI) showed a downward trend of pixel area accounting for 57.0%, which indicated that ecological water conveyance had played a positive role in groundwater recharge and ecological restoration along the Tarim River. The ecological environment quality of the river basin showed a trend of transition from low-grade to high-grade, and the area with excellent ecological quality had increased from 4,635.50 km2 in 2000 to 12,335.0 km2 in 2021. The above research provides important scientific reference for the protection and restoration of vegetation degradation in arid watersheds.

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Coupling the water use of Populus euphratica and Tamarix ramosissima and evapotranspiration partitioning in a desert riparian forest ecosystem

Cited by 7 publications

References 43 publications

Impact of deeper groundwater depth on vegetation and soil in semi-arid region of eastern China

Impact of deeper groundwater depth on vegetation and soil in semi-arid region of eastern China

Increased Humidity Improved Desert Riparian Ecosystems in the Tarim River Basin, Northwest China, from 1990 to 2020

Effect evaluation of ecological water conveyance in Tarim River Basin, China

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