Global predictions of primary soil salinization under changing climate in the 21st century

Hassani, Amirhossein; Azapagic, Adisa; Shokri, Nima

doi:10.1038/s41467-021-26907-3

Cited by 291 publications

(156 citation statements)

References 99 publications

Supporting

Mentioning

111

Contrasting

Order By: Relevance

“…In addition, 50% of the global lands are desert, where agriculture is impossible unless irrigated. However, irrigation brings other serious problems including further soil salinization (Hassani et al, 2021) and groundwater depletion (Pokhrel et al, 2021). Moreover, pests and diseases force farmers to lose 26% of their annual production (Cerda et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Genome sequence of 12 Vigna species as a knowledge base of stress tolerance and resistance

Naito

Wakatake

Shibata

et al. 2022

Preprint

View full text Add to dashboard Cite

Harnessing plant genetic resources including wild plants enables exploitation of agronomically unfavorable lands to secure food in the future. The genus Vigna, family Fabaceae, consists of many species of such kind, as they are often adapted to harsh environments including marine beach, arid sandy soil, acidic soil, limestone karst and marshes. Here we report long-read assemblies of 12 Vigna species, achieving 95% or higher BUSCO scores. The comparative analyses discovered a new class of WUSCHEL-related homeobox (WOX) transcription factor superfamily that are incorporated into LTR retrotransposons and have dramatically amplified in some species of the genus Vigna. Except WOX transcription factors, however, gene contents are highly conserved among Vigna species with few copy number variations. On the other hand, transcriptome data provided some insights that transcriptional alterations played more important roles in evolution of stress tolerance in the genus Vigna. The whole genome sequences presented in this study will facilitate understanding genetic mechanisms of stress tolerance and application for developing new crops that are adapted to unfavorable environments.

show abstract

Section: Introductionmentioning

confidence: 99%

Genome sequence of 12 Vigna species as a knowledge base of stress tolerance and resistance

Naito

Wakatake

Shibata

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Soil salinization is a serious global problem as saline soil severely impacts crop productivity. It has been predicted that problems associated with soil salinity will increase in many parts of the world due to climate change [ 1 ]. The effects of soil salinity are aggravated in plants in response to high temperatures due to evapotranspiration, specifically in semiarid and arid regions.…”

Section: Introductionmentioning

confidence: 99%

Deciphering Molecular Mechanisms Involved in Salinity Tolerance in Guar (Cyamopsis tetragonoloba (L.) Taub.) Using Transcriptome Analyses

Sandhu

Dueñas

Ferreira

et al. 2022

Plants

View full text Add to dashboard Cite

Guar is a commercially important legume crop known for guar gum. Guar is tolerant to various abiotic stresses, but the mechanisms involved in its salinity tolerance are not well established. This study aimed to understand molecular mechanisms of salinity tolerance in guar. RNA sequencing (RNA-Seq) was employed to study the leaf and root transcriptomes of salt-tolerant (Matador) and salt-sensitive (PI 340261) guar genotypes under control and salinity. Our analyses identified a total of 296,114 unigenes assembled from 527 million clean reads. Transcriptome analysis revealed that the gene expression differences were more pronounced between salinity treatments than between genotypes. Differentially expressed genes associated with stress-signaling pathways, transporters, chromatin remodeling, microRNA biogenesis, and translational machinery play critical roles in guar salinity tolerance. Genes associated with several transporter families that were differentially expressed during salinity included ABC, MFS, GPH, and P-ATPase. Furthermore, genes encoding transcription factors/regulators belonging to several families, including SNF2, C2H2, bHLH, C3H, and MYB were differentially expressed in response to salinity. This study revealed the importance of various biological pathways during salinity stress and identified several candidate genes that may be used to develop salt-tolerant guar genotypes that might be suitable for cultivation in marginal soils with moderate to high salinity or using degraded water.

show abstract

“…Saline soils cover an area of 3.97 × 10 6 km 2 , accounting for about 3.10% of the total land area of the world [12]. Soil salinization is regarded as a predominant land degradation threat, which exerts a significant impact on the provisioning, regulating, supporting, and cultural services of ecosystems, leading to a reduction in soil fertility, production, stability, and biodiversity [14][15][16]. Thus, many soil salinization management practices have been taken into practice in salt-affected soil all over the world to enhance the ecosystem services of both croplands and degraded natural ecosystems.…”

Section: Introductionmentioning

confidence: 99%

“…Numerous researchers have proved that the combination of site-level soil measurements, remote sensing data, and machine learning models can enable cost-effective mapping of the spatio-temporal distribution of soil salinity from local to global scales [15,[22][23][24][25][26]. The advantages of remote sensing data make it possible to directly observe the dynamics of soil surface salinity at various scales and resolutions [26,27].…”

Section: Introductionmentioning

confidence: 99%

The Role of Soil Salinization in Shaping the Spatio-Temporal Patterns of Soil Organic Carbon Stock

Zhang

Liu

et al. 2022

Remote Sensing

View full text Add to dashboard Cite

Soil salinization is closely related to land degradation, and it is supposed to exert a significant negative effect on soil organic carbon (SOC) stock dynamics. This effect and its mechanism have been examined at site and transect scales in previous studies while over a large spatial extent, the salinity-induced changes in SOC stock over space and time have been less quantified, especially by machine learning and remote sensing techniques. The main focus of this study is to answer the following question: to what extent can soil salinity exert an additional effect on SOC stock over time at a larger spatial scale? Thus, we employed the extreme gradient boosting models (XGBoost) combined with field site-level measurements from 433 sites and 41 static and time-varying environmental covariates to construct methods capable of quantifying the salinity-induced SOC changes in a typical inland river basin of China between the 1990s and 2020s. Results showed that the XGBoost models performed well in predicting the soil electrical conductivity (EC) and SOC stock at 0–20 cm, with the R2 value reaching 0.85 and 0.81, respectively. SOC stock was found to vary significantly with increasing soil salinity following an exponential decay function (R2 = 0.27), and salinity sensitivity analysis showed that soils in oasis were expected to experience the largest carbon loss (−137.78 g m−2), which was about 4.84, 14.37, and 25.95 times higher than that in the saline, bare, and sandy land, respectively, if the soil salinity increased by 100%. In addition, the decrease in the soil salinity (−0.32 dS m−1) from the 1990s to the 2020s was estimated to enhance the SOC stock by 0.015 kg m−2, which contributed an additional 10% increase to the total SOC stock enhancement. Overall, the proposed methods can be applied for quantification of the direction and size of the salinity effect on SOC stock changes in other salt-affected regions. Our results also suggest that the role of soil salinization should not be neglected in SOC changes projection, and soil salinization control measures should be further taken into practice to enhance soil carbon sequestration in arid inland river basins.

show abstract

Global predictions of primary soil salinization under changing climate in the 21st century

Cited by 291 publications

References 99 publications

Genome sequence of 12 Vigna species as a knowledge base of stress tolerance and resistance

Genome sequence of 12 Vigna species as a knowledge base of stress tolerance and resistance

Deciphering Molecular Mechanisms Involved in Salinity Tolerance in Guar (Cyamopsis tetragonoloba (L.) Taub.) Using Transcriptome Analyses

The Role of Soil Salinization in Shaping the Spatio-Temporal Patterns of Soil Organic Carbon Stock

Contact Info

Product

Resources

About