Degraded land detection by soil particle composition derived from multispectral remote sensing data in the Otindag Sandy Lands of China

Wu, Jian; Li, Zengyuan; Gao, Zhong‐Hua; Wang, Bengyu; Bai, Lei; Sun, Bin; Li, Changlong; Ding, Xiangyuan

doi:10.1016/j.geoderma.2014.11.011

Cited by 25 publications

(13 citation statements)

References 13 publications

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“…The soil texture referred to the size and proportion of mineral particles in the soil. It has an important influence on the physio-chemical properties, the aeration, water holding capacity, and fertilizer conservation of soils [28]. The main components of all soil were silt and clay (Table 1), accounting for more than 80% of soil texture.…”

Section: Effect Of Leonardite Addition On Soil Texture Morphology and Mineral Compositionmentioning

confidence: 99%

Effects of leonardite on the coastal saline soil improvement

Wang

Lü

et al. 2020

Chemistry and Ecology

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This study investigated the influence of leonardite on coastal saline soil YX1 (very slightly saline), YX2 (slightly saline) and YX3(strongly saline) with 0/10/30/50 g/kg addition dosage during the 81-day incubation. Changes of pH, electrical conductivity, soil texture, micromorphology, functional groups and mineral constituents of soil were discussed. Results showed that the application of leonardite enhanced the urea hydrolysis, increased the activities of urease and phosphatase in the coastal saline soil. The urease and phosphatase activity reached the maximum on the 8th incubation day. Leonardite raised C and N content in the soil colloid as well as the C/N value. However, leonardite had limited effects on the soil texture and mineral components during the incubation period. The application of leonardite would promote the activity of soil micro-organisms and relative enzyme to improve the soil ecosystem. It could benefit the amelioration of coastal saline soil, and provide the theoretical direction for agricultural production.

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Section: Effect Of Leonardite Addition On Soil Texture Morphology and Mineral Compositionmentioning

confidence: 99%

Effects of leonardite on the coastal saline soil improvement

Wang

Lü

et al. 2020

Chemistry and Ecology

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“…Remote Sensing technologies have been widely adopted to investigate and understand the changes of soil properties, for example, soil organic matter content (Kumar et al, 2017, Mirzaee et al, 2016 and soil texture (da Silva Chagas et al, 2016, Wu et al, 2015, further improving the capability of remote sensing in desertification detection. However, Remote Sensing technology is subject to inaccuracy.…”

Section: Insert Table 5 Herementioning

confidence: 99%

Desertification and its control along the route of China’s “Belt and Road Initiative”: A critical review

Zang

Chan

et al. 2020

Preprint

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The "Belt and Road Initiative" (BRI) was anticipated in 2013 to promote socioeconomic development and cooperation across countries in Asia, Europe, Africa and worldwide. Rapid land-use changes and infrastructure developments driven by the BRI program are expected in the coming decades. These anthropogenic effects are likely to exaggerate the process of de-vegetation, deforestation, accelerating desertification, which is one of the major threats to the BRI region. This manuscript studied the desertification facts (i.e. spatiotemporal pattern, impacts and impacting factors) and investigated key aspects for desertification control (i.e. mitigation and evaluation methods) in the BRI countries via an extensive review of literature. We found that desertification has been prevalent in the BRI countries, predominantly in C Asia, but quantitative assessment of desertification is yet fully understood. This review illustrated that desertification was driven by climatic dryness and mis-land-use/management activities, but their relative importance has yet been (quantitatively) assessed along the BRI countries. Given the negative impacts of desertification, these BRI countries have ratified the UN Convention to Combat Desertification (UNCCD) to reduce negative impacts. The implementation of desertification mitigation programmes are currently still lacking. We argued that desertification is usually evaluated via four type of approaches, including quantitative approaches, indirect detection, direct observation and biophysical measurement (e.g. vegetation growth). Future research should be applied by considering the research scope and data availability. Overall, we conclude that BRI countries should carry out transboundary control on desertification. Otherwise, this issue is likely to extend further imminent developments under the foremost BRI program.

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“…Recently, Ouerghemmi et al (2016) developed a semi-blind source separation method to separate vegetation spectra from soil spectra in order to retrieve the clay content over semi-vegetated surfaces. Wu et al (2015) classified degraded land based on the silt content with the multispectral BJ-1 satellite. Similarly, Zhai et al (2006) classified soil textural differences by soil spectra.…”

Section: The Remote Sensing Contribution To Ecohydrological Scalingmentioning

confidence: 99%

Upscaling Issues in Ecohydrological Observations

Vereecken¹,

Pachepsky²,

Bogena³

et al. 2017

Observation and Measurement

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Ecohydrological processes are strongly controlled by complex interactions between the subsurface or vadose zone, the vegetation, and the atmosphere. Upscaling of ecohydrological processes requires an understanding of the fundamental processes and states controlling water-related fluxes in vegetation and soils as well as the characterization of the inherent spatial variability occurring in these systems from the local to the catchment scale and beyond. In this chapter we address upscaling of soil water processes and hydraulic properties in the vadose zone, the upscaling of soil water-plant processes, the use of data assimilation

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Degraded land detection by soil particle composition derived from multispectral remote sensing data in the Otindag Sandy Lands of China

Cited by 25 publications

References 13 publications

Effects of leonardite on the coastal saline soil improvement

Effects of leonardite on the coastal saline soil improvement

Desertification and its control along the route of China’s “Belt and Road Initiative”: A critical review

Upscaling Issues in Ecohydrological Observations

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