The suitability of using leaf area index to quantify soil loss under vegetation cover

WenTai, Zhang; Dong-sheng, YU; Shi, Xuezheng; Wang, Hongjie; Gu, Zhen; Zhang, Xiangyan; Tan, Man-Zhi

doi:10.1007/s11629-011-1121-z

Cited by 26 publications

(21 citation statements)

References 34 publications

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“…Soil and water loss might still exist even under economic and secondary forest coverage (Zhang et al, 2011). Heavy grazing is the ultimate reason for grassland degradation.…”

Section: Vegetation Degradationmentioning

confidence: 99%

Characteristics of water erosion and conservation practice in arid regions of Central Asia: Xinjiang, China as an example

Zhang

Zhou

Feng

et al. 2015

International Soil and Water Conservation Research

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Located in the inland arid area of Central Asia and northwest China, Xinjiang has recently received heightened concerns over soil water erosion, which is highly related with the sustainable utilization of barren soil and limited water resources. Data from the national soil erosion survey of China (1985-2011) and Xinjiang statistical yearbook (2000 was used to analyze the trend, intensity, and serious soil water erosion regions. Results showed that the water erosion area in Xinjiang was 87.6×10 3 km 2 in 2011, mainly distributed in the Ili river valley and the northern and southern Tian Mountain. Soil erosion gradient was generally slight and the average erosion modulus was 2184 t/(km 2 ·a). During the last 26 years, the water erosion area in Xinjiang decreased by 23.2%, whereas the intensity was still increasing. The driving factors from large to small impact included: population boom and human activities> vegetation degradation> rainfall and climate change> topography and soil erodibility> tectonics movement. Soil water erosion resulted in eco-environmental and socioeconomic losses, such as destroying farmland and grassland, triggering floods, sedimentation of reservoirs, damaging transportation and irrigation facilities, and aggravating poverty. A landscape ecological design approach is suggested for integrated control of soil erosion. Currently, an average of 2.07×10 3 km 2 of formerly eroded area is conserved each year. This study highlighted the importance and longevity of soil and water conservation efforts in Xinjiang, and offered some suggestions on ecological restoration and combating desertification in arid regions of Central Asia.

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“…Soil and water loss might still exist even under economic and secondary forest coverage (Zhang et al, 2011). Heavy grazing is the ultimate reason for grassland degradation.…”

Section: Vegetation Degradationmentioning

confidence: 99%

Characteristics of water erosion and conservation practice in arid regions of Central Asia: Xinjiang, China as an example

Zhang

Zhou

Feng

et al. 2015

International Soil and Water Conservation Research

Self Cite

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“…). These relationships may indicated that increasing rainfall and vegetation cover are beneficial for soil genesis, and high vegetation fractional coverage could prevent soil from eroding ( Zhang et al, ). This explanation is further reinforced by the negative relationships between gravel fractional coverage and vegetation fractional coverage, as well as between gravel fractional coverage and mean annual precipitation.…”

Section: Resultsmentioning

confidence: 99%

“…Vegetation fractional coverage and gravel fractional coverage were measured by counting green and dark pixels, respectively. Average gravel diameter at the ground surface was estimated by comparison with a 1 m long line from the digitized photograph ( Zhang et al., ).…”

Section: Methodsmentioning

confidence: 99%

Estimating effective soil depth at regional scales: Legacy maps versus environmental covariates

Zhang

Sheng

et al. 2017

J. Plant Nutr. Soil Sci.

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Soil depth reflects the quantity and ecosystem service functions of soil resources. However, there is no universal standard to measure soil depth at present, and digital soil mapping approaches for predicting soil depth at the regional scale remain immature. Using observation of soil profile morphology, we compared the soil depth nomenclatures from the World Reference Base for Soil Resources, Chinese Soil Taxonomy, and Soil Taxonomy. For this study, shallow soils were defined as those with an effective soil depth < 100 cm. Based on legacy data and field soil survey, the spatial distribution of shallow soils in Xinjiang, China, and the main controlling environmental factors were explored. Results showed that shallow soils in Xinjiang are mainly distributed in high altitude regions such as the Tian Mountains. At the regional scale, significant correlations were observed between soil depth and climate factors, as well as between soil depth and vegetation fractional coverage. Contrary to previous conclusions at small spatial scales, terrain attributes could not explain soil depth variation at the regional scale. This study addressed knowledge gaps on soil depth prediction at regional scales while elucidating climate‐vegetation‐soil coevolution.

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“…[78] Various inorganic fillers such as nanoparticles (SiO 2 , [ [81] SiC, [40e] AlOOH, [82] and TPA [38b] ), nanotubes (ZrO 2 NT, [33b] CNT, [67,69,70] and Ce 2 Zr 2 O 7 NT [33c] ), nanosheets (GO, [71,72,83] SBA-15, [78] and g-C 3 N 4 [65,66] ) and microporous silicate (Engelhard titanosilicate-10 [68] and AMH-3 [63] ) have been used to modify the hydrocarbon-based membranes. Inorganic fillers are normally distributed in hydrophilic regions and can interact with sulfonic acid groups.…”

Section: Wwwadvsustainsyscommentioning

confidence: 99%

The Structure–Activity Relationship in Membranes for Vanadium Redox Flow Batteries

Jiang

Xiang

et al. 2019

Advanced Sustainable Systems

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IntroductionWith the rapid increase of consumption of fossil fuels and the consequent environment pollution, there is an urgent need for the development and effective utilization of renewable energy sources like wind, solar, biomass, etc. However, these renewable energy sources are intermittent in nature, leading to the conflict between the seasonal and unstable electricity generation and requirement of the continuous and stable power supply for the end application. Thereby, energy storage Vanadium redox flow batteries (VRFBs) are regarded as one of the most promising electrochemical technologies for grid-connected renewable energy storage systems. The performance of VRFBs, however, strongly depends on the membrane, one of the key components of VRFBs with critical dual functions of promotion of diffusion of active species (H + , H 3 O + , SO 4 2−, or SO 4 H − ) and inhibition of crossover of vanadium ions. This is intrinsically related to the microstructure of membranes. For example, large and connected ionic clusters or pores in membranes are favorable for the ion transfer, but detrimental to the ion selectivity. While small and isolated hydrophilic ion clusters or pores suppress the water uptake and ion transfer, the decreased swelling ratio would enhance chemical stability of membrane. Thus, comprehensive strategies are required to realize the optimal balance between the ion selectivity, proton conductivity, and chemical stability. This review focuses on the effects of microstructure of membranes on the ion transfer and the chemical stability, including introduction of the rigid groups, electron-withdrawing groups, and hydrophobic backbones, are reviewed. The prospect of the development of membranes with high ion selectivity and high-performance VRFBs is discussed.

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The suitability of using leaf area index to quantify soil loss under vegetation cover

Cited by 26 publications

References 34 publications

Characteristics of water erosion and conservation practice in arid regions of Central Asia: Xinjiang, China as an example

Characteristics of water erosion and conservation practice in arid regions of Central Asia: Xinjiang, China as an example

Estimating effective soil depth at regional scales: Legacy maps versus environmental covariates

The Structure–Activity Relationship in Membranes for Vanadium Redox Flow Batteries

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