Soil moisture nanosensors

Umasankareswari, T.; Dharshana, V.; Saravanadevi, K.; Dorothy, R.; Sasilatha, T.; Nguyen, Tuan Anh; Rajendran, Susai

doi:10.1016/b978-0-12-824554-5.00019-7

Cited by 6 publications

(3 citation statements)

References 29 publications

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“…8 b). This indicates that the plant is adapted to low soil moisture content 64 . In semi-arid environments, coarse-textured soils like loam, clay loam and sandy clay allow water to infiltrate better during rainy season and plants with extensive root systems, such as H. forskaolii , can access this stored water during dry season 63 .…”

Section: Discussionmentioning

confidence: 91%

Projecting the impact of climate change on honey bee plant habitat distribution in Northern Ethiopia

Gebremedhn,

Gebrewahid,

Haile

et al. 2024

Sci Rep

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Climate change significantly affects the diversity, growth, and survival of indigenous plant species thereby influencing the nutrition, health and productivity of honey bees (Apis mellifera). Hypoestes forskaolii (Vahl) is one of the major honey bee plant species in Ethiopia’s Tigray region. It is rich in pollen and nectar that typically provides white honey, which fetches a premium price in both local and inter-national markets. Despite its socio-economic and apicultural significance, the distribution of H. forskaolii has been declining, raising concerns regarding its conservation efforts. However, there is limited knowledge on how environmental and climatic factors affect its current distribution and response to future climate change. The study investigates the current and projected (the 2030s, 2050s, 2070s, and 2090s) habitat distributions of H. forskaolii under three future climate change scenarios (ssp126, ssp245, and ssp585) using the Maximum Entropy Model (MaxEnt). The results show that land use (50.1%), agro-ecology (28%), precipitation during the Driest Quarter (11.2%) and soil texture (6.1%) predominantly influence the distribution of H. forskaolii, collectively explaining 95.4% of the model's predictive power. Habitats rich in evergreen trees and mosaic herbaceous with good vegetation cover are identified as the most suitable for H. forskaolii. The spatial distribution of H. forskaolii is concentrated in the highlands and mid-highlands of the eastern and southern parts of Tigray, characterized by a colder temperature. Across the three climate change scenarios, the size of suitable habitat for H. forskaolii is projected to decrease over the four time periods studied. Predictions under the ssp585 scenario reveal alarming results, indicating a substantial decrease in the suitable habitat for H. forskaolii from 4.26% in the 2030s to 19.09% in the 2090s. Therefore, given the challenges posed by climate change, research efforts should focus on identifying and evaluating new technologies that can help the H. forskaolii species in adapting and mitigating the effects of climate change.

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Section: Discussionmentioning

confidence: 91%

Projecting the impact of climate change on honey bee plant habitat distribution in Northern Ethiopia

Gebremedhn,

Gebrewahid,

Haile

et al. 2024

Sci Rep

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“…The CEC is an indicator of the potential of the soil to serve agricultural use and normally has values dependent on soil mineralogy and mainly on the OM in tropical soils (Raij, 1983). Low CEC values indicate that the soil retains few exchangeable bases, increasing the need for fertilization (Umasankareswari et al, 2022). Thus, we highlight the importance of preserving or improving OM to allow sufficient conditions for CEC, favoring soil fertility, and minimizing the need for agricultural inputs.…”

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confidence: 97%

“…This is particularly relevant in the Amazon, which experiences intense rainfall and high temperatures. The CEC is directly influenced by clay and OM, as they form negative electrical charges in the soil and provide higher CEC values (Umasankareswari et al, 2022). This intricate correlation is of great importance for the sustainability of production systems, as inadequate management of these soils invariably results in their degradation.…”

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confidence: 99%

Fertility and carbon stock in pasture and forest environments in the Southern Amazon

Silva,

S. Oliveira-Júnior

et al. 2024

Rev. bras. eng. agríc. ambient.

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Inadequate management of pasture soils in the Amazon has resulted in a predominance of degraded pastures. Considering the natural characteristics of this region can favor more appropriate strategies for sustainability, the objective of this study was to evaluate the differences in the chemical and physical attributes of pasture and forest soils in the Southern Amazon and to identify the most sensitive attributes of their fertility. Additionally, this study suggests appropriate management practices for sustainable pastures. Soil samples from the 0 to 0.20 m layer were analyzed to determine pH, exchangeable bases (calcium, magnesium, and potassium), exchangeable aluminum, potential acidity, phosphorus, organic carbon, bulk density, and texture. Pasture soils had a higher pH, calcium content, and bulk density than forest soils. However, the pasture soils had lower phosphorus and organic matter content. The soil organic carbon stocks were also lower in pasture soils, with levels 0.8 to 12 Mg ha-1 lower than in forest soils. The fertility attributes most sensitive to soil management in these pastures were phosphorus, pH, organic carbon, and bulk density. The lack of nutrients and soil and water conservation practices have contributed to the degradation of these pastures. Therefore, the recommended management for these pastures should aim to improve the organic matter content, reduce compaction, and replenish and cycle nutrients.

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Recent Advances in Integrating 1D Nanomaterials into Chemiresistive Gas Sensor Devices

Lin

Kilani

Mao

2023

Adv Materials Technologies

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There is rapid growth in the global gas sensor market driven by new regulations for industrial emission control and residential environments and increasing demand for portable devices. Nanosensors promise to be the next generation gas sensors for the direct detection of chemical species due to their ultrahigh sensitivity, fast response, ultralow weight, and low power consumption. However, transitioning nanosensors from basic research or prototype projects to commercial products encounters two major technical challenges: difficulty in scale up and inability to demonstrate real‐world use in changing humidity and temperature conditions. The advances in addressing these two technical challenges in recent literature are surveyed. The most common 1D nanomaterials in R&D for gas sensing, metal oxides, and carbon nanotubes, as well as less common metal nanowires and psudo‐1D crystals made from charge‐transfer complexes (CTCs) are included. This review delves into the specifics of each of these 1D nanomaterials for gas sensing applications, their synthesis and deposition, sensing performance, and commercial development in the last 5 years. It highlights the scalability of one‐step electrodeposition of CTC nanowires on prefabricated electrodes, at room temperature, and from solution in making gas nanosensors.

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Soil moisture nanosensors

Cited by 6 publications

References 29 publications

Projecting the impact of climate change on honey bee plant habitat distribution in Northern Ethiopia

Projecting the impact of climate change on honey bee plant habitat distribution in Northern Ethiopia

Fertility and carbon stock in pasture and forest environments in the Southern Amazon

Recent Advances in Integrating 1D Nanomaterials into Chemiresistive Gas Sensor Devices

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