Is salinity the main ecological factor that influences foliar nutrient resorption of desert plants in a hyper-arid environment?

Wang, Lilong; Zhang, Xinfang; Xu, Shuang

doi:10.1186/s12870-020-02680-1

Cited by 13 publications

(5 citation statements)

References 49 publications

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“…As Moore had pointed out that it is too much of a good thing [ 1 ] , t he increased N deposition can change the nutrient and moisture status of the soil [ 2 , 3 ], alter nutrient cycle of ecosystems [ 4 ], facilitate the growth of nitrophilic plants [ 5 , 6 ], deteriorate biological diversity [ 7 , 8 ], even alter community structure, composition and function of terrestrial ecosystems [ 5 , 7 , 9 – 11 ]. These effects are more likely to be found in some N-limited terrestrial ecosystems such as vegetation in arid environment [ 9 , 12 – 14 ].…”

Section: Introductionmentioning

confidence: 99%

“…Generally, plant nutrient resorption is associated with plant functional forms (for examples, legume and non-legume) [ 17 , 18 ], and strongly influenced by nutrient availability [ 19 ]. Symbiotic N fixation broadens potential N resources and generally increases N absorption, which results in stable N concentration and N resorption in legumes [ 14 , 17 , 18 ]. Nutrient resorption patterns can also be altered by soil nutrient availability, although the divergent results have been found based on either inter- or intra-species studies [ 5 , 16 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

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Grazing exclusion had greater effects than nitrogen addition on soil and plant community in a desert steppe, Northwest of China

Wang

et al. 2022

BMC Plant Biol

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Background The impacts of increasing nitrogen (N) deposition and overgrazing on terrestrial ecosystems have been continuously hot issues. Grazing exclusion, aimed at restoration of grassland ecosystem function and service, has been extensively applied, and considered a rapid and effective vegetation restoration method. However, the synthetic effects of exclosure and N deposition on plant and community characteristics have rarely been studied. Here, a 4-year field experiment of N addition and exclusion treatment had been conducted in the desert steppe dominated by Alhagi sparsifolia and Lycium ruthenicum in northwest of China, and the responses of soil characteristics, plant nutrition and plant community to the treatments had been analyzed. Results The grazing exclusion significantly increased total N concentration in the surface soil (0-20 cm), and increased plant height, coverage (P < 0.05) and aboveground biomass. Specifically, A. sparsifolia recovered faster both in individual and community levels than L. ruthenicum did after exclusion. There was no difference in response to N addition gradients between the two plants. Conclusions Our findings suggest that it is exclusion rather than N addition that has greater impacts on soil properties and plant community in desert steppe. Present N deposition level has no effect on plant community of desert steppe based on short-term experimental treatments.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Grazing exclusion had greater effects than nitrogen addition on soil and plant community in a desert steppe, Northwest of China

Wang

et al. 2022

BMC Plant Biol

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“…Studies ( Wang et al, 2020 ) have shown that increased soil salinity-induced osmotic and ionic stress can limit nutrient uptake by plants. This is also one of the important factors reducing the H. ammodendron population.…”

Section: Discussionmentioning

confidence: 99%

Great gerbil burrowing-induced microbial diversity shapes the rhizosphere soil microenvironments of Haloxylon ammodendron in temperate deserts

et al. 2022

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In the Gurbantunggut Desert of northwest China, the main habitat of Rhombomys opimus (great gerbil) is under the thickets of Haloxylon ammodendron, the main construction species. In the long-term coexistence, continuous gerbil activities (burrowing, defecating, and gnawing) limited the growth of H. ammodendron, affected the root microenvironment under the H. ammodendron forest, and weakened the desert ecosystem. However, there is a lack of general understanding about the response of desert soil microhabitats to such gerbil disturbance. Accordingly, this study examined the effects of different intensities of gerbil disturbance (none, mild, moderate, or severe disturbances) on soil nutrients content and used high-throughput sequencing to explore the change in diversity and structure of microbial communities (bacteria and fungi) in H. ammodendron rhizosphere at different soil depths (0–20, 20–40, and 40–60 cm). In the arid desert ecosystem, compared with the soil fungal community, the alpha diversity of the soil bacterial community was significantly affected by gerbil disturbance. Meanwhile, both soil depth and gerbil disturbance significantly impacted the beta diversity and relative abundance of soil bacterial and fungal communities. In addition, gerbil disturbance significantly altered the soil characteristics affecting the distribution and composition of soil microbial communities in H. ammodendron rhizosphere, especially the soil bacterial community. This survey provides evidence that remold impact of gerbil disturbance on soil microenvironment of H. ammodendron rhizosphere in desert ecosystems in northwest China, which helps to further understand the potential correlations with changes in the microbial community at a regional scale.

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“…By blocking sodium uptake, encouraging the absorption of K, Ca, and nitrate ions, boosting the exocytosis of Cl − , and causing the synthesis of anti-salt compounds, Ca can improve plant salt resistance [35]. As crucial osmoregulatory components, potassium (K) and sodium (Na) aid desert plants in their tolerance to both drought and salinity stress [36]. The grouping and structure of plant groups can be revealed by analyzing the variance of plant leaf features in desert settings.…”

Section: Introductionmentioning

confidence: 99%

Interspecific Integration of Chemical Traits in Desert Plant Leaves with Variations in Soil Water and Salinity Habitats

Yang,

Zhang,

Song

et al. 2023

Forests

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Understanding the relationship between soil environmental conditions and the interspecific integration of plant traits might shed light on how plants adapt to their environment. In order to clarify the adaptation strategies of desert plants in the various habitats, this study calculated interspecific trait integration (ITI) and plant trait networks (PTN) by selecting plants from high water-salinity habitat (HSM) with salt stress and low water-salinity habitat (LSM) with drought stress in the Ebinur Lake region. Eight different phytochemical traits were taken into consideration, including carbon (C), nitrogen (N), phosphorus (P), sulfur (S), potassium (K), calcium (Ca), sodium (Na), and magnesium (Mg). Six soil factors were chosen, including soil pH, water content (SVWC), electrical conductivity (EC), soil nitrogen (N), phosphorus (P), and potassium (K). The results obtained are shown below: (1) the relationship between plant leaf chemical traits was closer in HSM than in LSM, and the correlation between C and other leaf chemical traits was significant in HSM and insignificant in LSM; (2) the correlations between soil factors and ITI were not statistically significant; however, in both soil water-salinity habitats, the strength of fit between SVWC and ITI was the greatest, while the strength of fit between EC and ITI was the smallest; and (3) according to the PTN, C and Ca are the two most central traits for the growth of desert leaf chemical plants in Ebinur Lake, which is consistent with the results of the PCA. Coordination of plant leaf traits along water-salinity gradients involves many different combinations of traits, and the use of ITI and PTN can quantify the complex relationships between multiple traits to a greater extent, highlighting the multivariate mechanisms of plant response and adaptation to soil habitats. This information will help expand and optimize our ability to observe and predict desert plant responses to habitat change, providing powerful insights for assessing desert plant survival strategies.

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Is salinity the main ecological factor that influences foliar nutrient resorption of desert plants in a hyper-arid environment?

Cited by 13 publications

References 49 publications

Grazing exclusion had greater effects than nitrogen addition on soil and plant community in a desert steppe, Northwest of China

Grazing exclusion had greater effects than nitrogen addition on soil and plant community in a desert steppe, Northwest of China

Great gerbil burrowing-induced microbial diversity shapes the rhizosphere soil microenvironments of Haloxylon ammodendron in temperate deserts

Interspecific Integration of Chemical Traits in Desert Plant Leaves with Variations in Soil Water and Salinity Habitats

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