Effects of vegetation restoration on local microclimate on the Loess Plateau

Wang, Chenxi; Liang, Wenju; Yan, Juan; Jing-bo, Zhao; Zhang, Wei‐Bin; Li, Xiaofei

doi:10.1007/s11442-022-1948-y

Cited by 23 publications

(10 citation statements)

References 72 publications

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“…A series of 25 combinations of 5 rainfall intensities (60, 84, 108, 132, 156 mm h -1 ) and 5 slope gradients (0°, 5°, 10°, 15°, 25°) were tested. The rainfall intensities (I) conformed to rainfall characteristics of the Loess Plateau (Jiao et al, 1999;Qu et al, 2022;Wang et al, 2022).…”

Section: Measurementsmentioning

confidence: 66%

Effective soil particle size distributions and critical size of enrichment/depletion in splash erosion for loessial soil

Qi,

Cheng,

Liu

et al. 2023

J. Geogr. Sci.

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Effective soil particle size composition can more realistically reflect the particle size sorting process of erosion. To reveal the individual contributions of rainfall intensity and slope to splash erosion, and to distinguish the enrichment ratio of each size and the critical size in splash, loessial soil collected on the Loess Plateau in May 2019 was tested under different rainfall intensities (60, 84, 108, 132, 156 mm h -1 ) and slopes (0°, 5°, 10°, 15°, 20°). The results demonstrated that 99% of splash mass was concentrated in 0-0.4 m. Rainfall intensity was the major factor for splash according to the raindrop generation mode by rainfall simulator nozzles. The contributions of rainfall intensity to splash erosion were 82.72% and 93.24%, respectively in upslope and downslope direction. The mass percentages of effective clay and effective silt were positively correlated with rainfall intensity, while the mass percentages of effective very fine sand and effective fine sand were negatively correlated with rainfall intensity. Opposite to effective very fine sand, the mass percentages of effective clay significantly decreased with increasing distance. Rainfall intensity had significant effects on enrichment ratios, positively for effective clay and effective silt and negatively for effective very fine sand and effective fine sand. The critical effective particle size in splash for loessial soil was 50 µm.

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Section: Measurementsmentioning

confidence: 66%

Effective soil particle size distributions and critical size of enrichment/depletion in splash erosion for loessial soil

Qi,

Cheng,

Liu

et al. 2023

J. Geogr. Sci.

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show abstract

“…FVC is influenced by the climate, solar radiation, CO 2 concentration, human activities, topography, etc., with temperature and precipitation playing the most critical roles [70]. Climate change is an internal factor driving vegetation change, whereas human activities is an external factor, variations in land use induced by human activities, such as agriculture and urbanization, are important factors affecting the spatial patterns of vegetation [23], and the significance of human activities on vegetation change can no longer be underestimated [21,24].…”

Section: Spatial and Temporal Evolution Characteristics Of The Fvc Un...mentioning

confidence: 99%

Spatio-Temporal Patterns and Driving Factors of Vegetation Change in the Pan-Third Pole Region

Yang

2022

Remote Sensing

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The Pan-Third Pole (PTP) region, one of the areas with the most intense global warming, has seen substantial changes in vegetation cover. Based on the GIMMS NDVI3g and meteorological dataset from 1982 to 2015, this study evaluated the spatio-temporal variation in fractional vegetation coverage (FVC) by using linear regression analysis, standard deviation, correlation coefficient, and multiple linear regression residuals to explore its response mechanism to climate change and human activities. The findings showed that: (1) the FVC was progressively improved, with a linear trend of 0.003•10a−1. (2) The largest proportion of the contribution to FVC change was found in the unchanged area (39.29%), followed by the obvious improvement (23.83%) and the mild improvement area (13.53%). (3) The impact of both climate change and human activities is dual in FVC changes, and human activities are increasing. (4) The FVC was positively correlated with temperature and precipitation, with a stronger correlation with temperature, and the climate trend was warm and humid. The findings of the study serve to understand the impacts of climate change and human activities on the dynamic changes in the FVC and provide a scientific foundation for ecological conservation and sustainable economic development in the PTP region.

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“…With climate change, regional responses, and regional human-earth coupling, terrestrial ecosystems are experiencing considerable change (Forzieri et al, 2017;Piao et al, 2020). As a crucial part of ecosystems worldwide, the functions of vegetation are to change the surface conditions, regulate local microclimate, adjust the global carbon balance, and reflect regional human activities (Eastman et al, 2013;Sun et al, 2015;Qu et al, 2020;Wang et al, 2022). Changes in vegetation cover are the direct result of the ecological environment.…”

Section: Introductionmentioning

confidence: 99%

Impacts of climate change and anthropogenic activities on the normalized difference vegetation index of desertified areas in northern China

et al. 2023

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Vegetation plays a key role in maintaining ecosystem stability, promoting biodiversity conservation, serving as windbreaks, and facilitating sand fixation in deserts. Based on the Moderate Resolution Imaging Spectroradiometer Normalized Difference Vegetation Index (MODIS NDVI) and climate data, a Theil-Sen median trend analysis combined with the Mann-Kendall test and partial correlation and residual analyses were employed to explore spatiotemporal patterns of vegetation dynamics and key drivers in the Badain Jaran and Tengger deserts and Mu Us Sandy Land. Data were collected during the growing season between 2001 and 2020. Further analyses quantified the relative contribution of climate variation and anthropogenic activities to NDVI changes. Results revealed a predominantly increasing trend for average NDVI. The spread of average annual NDVI and growth trends of the vegetation were determined to be influenced by spatial differences. The area with improved vegetation was greater than that of the degraded region. Climate variability and human activities were driving forces controlling vegetation cover changes, and their effects on vegetation dynamics varied by region. The response of vegetation dynamics was stronger for precipitation than temperature, indicating that precipitation was the main climate variable influencing the NDVI changes. The relative role of human activities was responsible for > 70% of the changes, demonstrating that human activities were the main driving factor of the NDVI changes. The implementation of ecological engineering is a key driver of increased vegetation coverage and has improved regional environmental quality. These results enhance our knowledge regarding NDVI change affected by climate variation and human activities and can provide future theoretical guidance for ecological restoration in arid areas.

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Effects of vegetation restoration on local microclimate on the Loess Plateau

Cited by 23 publications

References 72 publications

Effective soil particle size distributions and critical size of enrichment/depletion in splash erosion for loessial soil

Effective soil particle size distributions and critical size of enrichment/depletion in splash erosion for loessial soil

Spatio-Temporal Patterns and Driving Factors of Vegetation Change in the Pan-Third Pole Region

Impacts of climate change and anthropogenic activities on the normalized difference vegetation index of desertified areas in northern China

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