The effect of land cover/vegetation on soil water dynamic in the hilly area of the loess plateau, China

Chen, Liding; Huang, Zhilong; Gong, Jianhua; Fu, Bojie; Huang, Yilong

doi:10.1016/j.catena.2006.08.007

Cited by 313 publications

(192 citation statements)

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“…Effect of land cover type on soil moisture Many of the factors that influence the spatial and temporal variances of soil moisture have been studied previously (Qiu et al 2001aFu et al 2003;Lin et al 2006;Brocca et al 2007Brocca et al , 2008Chen et al 2007). In this revegetated area, the different land cover types were the main control on moisture distributions.…”

Section: Discussionmentioning

confidence: 98%

“…In turn, different land cover types affect the mutually interacting hydrologic processes, especially infiltration and evapotranspiration Wang et al 2012;Wang et al 2013), resulting in various characteristics of soil moisture dynamics (Qiu et al 2001a. Chen et al (2007) evaluated the relationship between land cover types and soil moisture dynamics in the Loess Plateau area for five vegetation types and found that soil water loss occurred during the growing season, and the moisture was not fully replenished from rainfall during the rainy season. The soil moisture content for land covered by different vegetation types in the semiarid area of the Loess Plateau has been well studied and documented during the past few decades (Qiu et al 2001a;Fu et al 2003;Chen et al 2007;Wang et al 2012Wang et al , 2013.…”

Section: Introductionmentioning

confidence: 99%

“…Chen et al (2007) evaluated the relationship between land cover types and soil moisture dynamics in the Loess Plateau area for five vegetation types and found that soil water loss occurred during the growing season, and the moisture was not fully replenished from rainfall during the rainy season. The soil moisture content for land covered by different vegetation types in the semiarid area of the Loess Plateau has been well studied and documented during the past few decades (Qiu et al 2001a;Fu et al 2003;Chen et al 2007;Wang et al 2012Wang et al , 2013. The studies have indicated that bare soils usually have higher soil moisture content than vegetated soils, and that annual crops and grasses have higher soil moisture content than forests .…”

Section: Introductionmentioning

confidence: 99%

“…Qiu et al (2001b) and Fu et al (2003) suggested that the timeaveraged soil moisture content can be classified into either a decreasing, waving, or increasing type. Chen et al (2007) discovered four patterns of vertical profile distribution (inclined I-shape, near L-shape, L-shape, and near I-shape) according to the integrated functions of transpiration, soil evaporation, and rainfall. These different vertical profiles directly determined the spatiotemporal dynamic characteristics of different layers of moisture and indirectly determined the average moisture content.…”

Section: Introductionmentioning

confidence: 99%

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Linking the soil moisture distribution pattern to dynamic processes along slope transects in the Loess Plateau, China

Wang

Gao

et al. 2015

Environ Monit Assess

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Soil moisture pulses are a prerequisite for other land surface pulses at various spatiotemporal scales in arid and semi-arid areas. The temporal dynamics and profile variability of soil moisture in relation to land cover combinations were studied along five slopes transect on the Loess Plateau during the rainy season of 2011. Within the 3 months of the growing season coupled with the rainy season, all of the soil moisture was replenished in the area, proving that a type stability exists between different land cover soil moisture levels. Land cover combinations disturbed the trend determined by topography and increased soil moisture variability in space and time. The stability of soil moisture resulting from the dynamic processes could produce stable patterns on the slopes. The relationships between the mean soil moisture and vertical standard deviation (SD) and coefficient of variation (CV) were more complex, largely due to the fact that different land cover types had distinctive vertical patterns of soil moisture. The spatial SD of each layer had a positive correlation and the spatial CV exhibited a negative correlation with the increase in mean soil moisture. The soil moisture stability implies that sampling comparisons in this area can be conducted at different times to accurately compare different land use types.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Linking the soil moisture distribution pattern to dynamic processes along slope transects in the Loess Plateau, China

Wang

Gao

et al. 2015

Environ Monit Assess

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“…As a result, patterns of land cover and land use have been changed greatly, and the natural landscapes have been fragmented also. Since the 1970s, roads and rural buildings have expanded, especially around farmland or at the verge of gullies, which not only wasted large amounts of land resources, but also caused heavy soil erosion (Chen et al 2007b). Therefore, those unique characteristics make this region an appropriate place to explore the relationship between roads and buildings with environmental variables.…”

Section: Introductionmentioning

confidence: 99%

The changes of densities and patterns of roads and rural buildings: a case study on Dongzhi Yuan of the Loess Plateau, China

Wang

2009

Environ Monit Assess

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Roads and buildings are considered as primary causes of rural landscape changes. In this study, linear regression models were used to analyze the dynamic influences of environmental factors and variables on roads and rural buildings from 1979 to 2005 in Dongzhi Yuan (tableland) of the Loess Plateau, China. The relationship between roads and rural buildings and their effects on Dongzhi Yuan are discussed also. The results showed that three environmental factors (topography, land cover, and development level) explained roads better than rural buildings referring densities and patterns. The environmental variables significantly related to roads have decreased, whereas those related to rural buildings

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Excessive Afforestation and Soil Drying on China's Loess Plateau

et al. 2018

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Afforestation and deforestation as human disturbances to vegetation have profound impacts on ecohydrological processes influencing both water and carbon cycles and ecosystem sustainability. Since 1999, large‐scale revegetation activities such as “Grain‐to‐Green Program” have been implemented across China's Loess Plateau. However, negative ecohydrological consequences, including streamflow decline and soil drying have emerged. Here we estimate the equilibrium vegetation cover over the Loess Plateau based on an ecohydrological model and assess the water balance under the equilibrium and actual vegetation cover over the past decade. Results show that the current vegetation cover (0.48 on average) has already exceeded the climate‐defined equilibrium vegetation cover (0.43 on average) in many parts of the Loess Plateau, especially in the middle‐to‐east regions. This indicates a widespread overplanting, which is found to primarily responsible for soil drying in the area. Additionally, both the equilibrium vegetation cover and soil moisture tend to decrease under future (i.e., 2011–2050) climate scenarios due to declined atmospheric water supply (i.e., precipitation) and increased atmospheric water demand (i.e., potential evapotranspiration). Our findings suggest that further revegetation on the Loess Plateau should be applied with caution. To maintain a sustainable ecohydrological environment in the region, a revegetation threshold is urgently needed to guide future revegetation activities.

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The effect of land cover/vegetation on soil water dynamic in the hilly area of the loess plateau, China

Cited by 313 publications

References 18 publications

Linking the soil moisture distribution pattern to dynamic processes along slope transects in the Loess Plateau, China

Linking the soil moisture distribution pattern to dynamic processes along slope transects in the Loess Plateau, China

The changes of densities and patterns of roads and rural buildings: a case study on Dongzhi Yuan of the Loess Plateau, China

Excessive Afforestation and Soil Drying on China's Loess Plateau

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