Vegetation patterns influence on soil microbial biomass and functional diversity in a hilly area of the Loess Plateau, China

Hu, Chanjuan; Fu, Bojie; Li, Guohua; Jin, Tiantian; Guo, Lei

doi:10.1007/s11368-010-0209-3

Cited by 43 publications

(20 citation statements)

References 43 publications

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“…The many native and cultivated plant species distributed in a mosaic fashion in the Yangjuangou catchment all have different morphological characteristics (Hu et al, 2010), soil water use efficiencies , soil nutrient and conservation effects (Fu et al, 2009;Wang et al, 2010), and soil moisture inputs. Understanding of these factors provides the basis for predicting the hydrological characteristics of hill slopes, catchments and other topographic features occupied by combinations of these plant species.…”

Section: Differences In Soil Moisture and Infiltration Among Land Covmentioning

confidence: 99%

Responses of soil moisture in different land cover types to rainfall events in a re-vegetation catchment area of the Loess Plateau, China

Wang

Gao

et al. 2013

CATENA

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a b s t r a c t a r t i c l e i n f oImplementation of the Grain-for-Green project has resulted in significantly increased vegetative cover on the Loess Plateau of China during the past few decades. The plant communities influence soil moisture recharge and usage processes, particularly the input process, which is directly related to transformation of the limited precipitation into available soil water in the semi-arid Loess Plateau. A study to measure soil moisture dynamics of typical land cover types associated with precipitation events was conducted in a re-vegetated catchment area. Smart probes were inserted at 6 different depths below the ground surface under grass (Andropogon), subshrub (Artemisia scoparia), shrub (Spiraea pubescens), tree (Robinia pseudoacacia), and crop (Zea mays) vegetation to record volumetric soil moisture at 10-minute intervals for a period of 60 days during the growing season in 2011. The advance of the wetting front and total accumulated infiltrated water were measured. The rainfall events were sporadic with widely different intensities, and the soil moisture was replenished mainly by 3-4 heavy precipitation events during July and August. The mean soil moisture content profiles of the 5 vegetation types can be ordered as crop > grass > subshrub> tree> shrub and this relationship displayed time stability. The different land cover types clearly influenced the water infiltration and water input amounts in the re-vegetated area. The subshrub site showed the highest total infiltration amount (164 mm) with precipitation (227 mm) during the study period. The grass site had an infiltration amount of 156 mm. The tree site had a total precipitation of 154 mm and an infiltration amount of 97 mm. The infiltration amount was 136 mm for the shrub site and was the lowest (83 mm) for the crop site. Natural grasses displayed a rapid infiltration rate and the wetting front was able to reach a greater depth.

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Section: Differences In Soil Moisture and Infiltration Among Land Covmentioning

confidence: 99%

Responses of soil moisture in different land cover types to rainfall events in a re-vegetation catchment area of the Loess Plateau, China

Wang

Gao

et al. 2013

CATENA

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186

122

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“…The average annual precipitation is 550 mm, and most of the precipitation occurs between July and September. The soil is classified as Calcaric Cambisols, is readily susceptible to soil erosion, and has a texture ranging from fine silt to silt (Fu et al, 2000;Hu et al, 2010).…”

Section: Study Areamentioning

confidence: 99%

“…Soil microbial biomass carbon (Cmic) was also studied. The detailed methods and results of soil physicochemical and microbial properties were presented in Hu et al (2010).…”

Section: Analysis Of Soil Physicochemical and Microbial Propertiesmentioning

confidence: 99%

Soil carbon stock and flux in plantation forest and grassland ecosystems in Loess Plateau, China

Li²,

Fu³

et al. 2014

Chin. Geogr. Sci.

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Abstract:Carbon sequestration occurs when cultivated soils are re-vegetated. In the hilly area of the Loess Plateau, China, black locust (Robinia pseudoacacia) plantation forest and grassland were the two main vegetation types used to mitigate soil and water loss after cultivation abandonment. The purpose of this study was to compare the soil carbon stock and flux of these two types of vegetation which restored for 25 years. The experiment was conducted in Yangjuangou catchment in Yan′an City, Shaanxi Province, China. Two adjacent slopes were chosen for this study. Six sample sites were spaced every 35-45 m from summit to toe slope along the hill slope, and each sample site contained three sampling plots. Soil organic carbon and related physicochemical properties in the surface soil layer (0-10 cm and 10-20 cm) were measured based on soil sampling and laboratory analysis, and the soil carbon dioxide (CO 2 ) emissions and environmental factors were measured in the same sample sites simultaneously. Results indicated that in general, a higher soil carbon stock was found in the black locust plantation forest than that in grassland throughout the hill slope. Meanwhile, significant differences in the soil carbon stock were observed between these two vegetation types in the upper slope at soil depth 0-10 cm and lower slope at soil depth 10-20 cm. The average daily values of the soil CO 2 emissions were 1.27 mol/(m 2 ·s) and 1.39 mol/(m 2 ·s) for forest and grassland, respectively. The soil carbon flux in forest covered areas was higher in spring and less variation was detected between different seasons, while the highest carbon flux was found in grassland in summer, which was about three times higher than that in autumn and spring. From the carbon sequestration point of view, black locust plantation forest on hill slopes might be better than grassland because of a higher soil carbon stock and lower carbon flux.

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“…Vegetation plays a key role in the flow of matter and energy among the pedosphere, hydrosphere and atmosphere [1,2]. Vegetation change has been and will be a key issue in global changes involving terrestrial ecosystems as it is sensitive to climate change [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…The primary objectives of our study were (1) to characterize the vegetation changes within our study area from 2000 to 2016; (2) to analyze the relationships between climate change, the permafrost environment, vegetation growth and human activities; and (3) to quantify the impacts from different factors to the vegetation changes and determine the spatial scales of these impacts.…”

Section: Introductionmentioning

confidence: 99%

Vegetation Changes along the Qinghai-Tibet Plateau Engineering Corridor Since 2000 Induced by Climate Change and Human Activities

2018

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Abstract:The Qinghai-Tibet (QT) Plateau Engineering Corridor is located in the hinterland of the QT Plateau, which is highly sensitive to global climate change. Climate change causes permafrost degradation, which subsequently affects vegetation growth. This study focused on the vegetation dynamics and their relationships with climate change and human activities in the region surrounding the QT Plateau Engineering Corridor. The vegetation changes were inferred by applying trend analysis, the Mann-Kendall trend test and abrupt change analysis. Six key regions, each containing 40 nested quadrats that ranged in size from 500 × 500 m to 20 × 20 km, were selected to determine the spatial scales of the impacts from different factors. Cumulative growing season integrated enhanced vegetation index (CGSIEVI) values were calculated for each of the nested quadrats of different sizes to indicate the overall vegetation state over the entire year at different spatial scales. The impacts from human activities, a sudden increase in precipitation and permafrost degradation were quantified at different spatial scales using the CGSIEVI values and meteorological data based on the double mass curve method. Three conclusions were derived. First, the vegetation displayed a significant increasing trend over 23.6% of the study area. The areas displaying increases were mainly distributed in the Hoh Xil. Of the area where the vegetation displayed a significant decreasing trend, 72.4% was made up of alpine meadows. Second, more vegetation, especially the alpine meadows, has begun to degenerate or experience more rapid degradation since 2007 due to permafrost degradation and overgrazing. Finally, an active layer depth of 3 m to 3.2 m represents a limiting depth for alpine meadows.

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Vegetation patterns influence on soil microbial biomass and functional diversity in a hilly area of the Loess Plateau, China

Cited by 43 publications

References 43 publications

Responses of soil moisture in different land cover types to rainfall events in a re-vegetation catchment area of the Loess Plateau, China

Responses of soil moisture in different land cover types to rainfall events in a re-vegetation catchment area of the Loess Plateau, China

Soil carbon stock and flux in plantation forest and grassland ecosystems in Loess Plateau, China

Vegetation Changes along the Qinghai-Tibet Plateau Engineering Corridor Since 2000 Induced by Climate Change and Human Activities

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