Effects of different grassland restoration approaches on soil properties in the southeastern Horqin sandy land, northern China

Ji-you, Yuan; Ouyang, Zhiyun; Zheng, Hua; Xu, Weihua

doi:10.1016/j.apsoil.2012.04.003

Cited by 38 publications

(26 citation statements)

References 31 publications

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“…The soil particle size distribution revealed that grazing exclusion led to greater silt and clay content, and lower sand content under non-grazed grasslands Mofidi et al, 2013). In addition, grassland with grazing exclusion has higher water-holding capacity, total porosity and infiltration rates; consequently, soil moisture is higher in non-grazed grassland (Yuan et al, 2012;Haynes et al, 2014). In general, soil physical properties improved after grazing exclusion due to natural amelioration of the soil structure.…”

Section: Published By Copernicus Publications On Behalf Of the Europementioning

confidence: 89%

“…For instance, soil bulk density (BD) was found to be lower in grazing exclusion grassland compared to freely grazed grassland due to the elimination of soil trampling by livestock (Gao et al, 2011), as well as the increase of root biomass accumulation (Yuan et al, 2012). The soil particle size distribution revealed that grazing exclusion led to greater silt and clay content, and lower sand content under non-grazed grasslands Mofidi et al, 2013).…”

Section: Published By Copernicus Publications On Behalf Of the Europementioning

confidence: 99%

“…Soil BD was slightly lower in the GE plots compared to FG plots of the alpine grassland in Tibet. The elimination of soil trampling by livestock -as well as the high organic matter content, high soil silt and clay content, and the presence of extensive shallowroot systems in the grazing exclusion areas -contributed to a decrease in soil BD (Su et al, 2005;Yuan et al, 2012). It was found that the soil pH was lower in non-grazed rangelands compared with grazed rangelands probably because of the addition of livestock urine, which increased soil pH largely due to the hydrolysis of urine urea in grazed grassland (Raiesi and Riahi, 2014).…”

Section: Effect Of Grazing Exclusion On Soil Propertiesmentioning

confidence: 99%

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Short-term grazing exclusion has no impact on soil properties and nutrients of degraded alpine grassland in Tibet, China

et al. 2015

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Abstract. Since the 1980s, alpine grasslands have been seriously degraded on the Tibetan Plateau. Grazing exclusion by fencing has been widely adopted to restore degraded grasslands. To clarify the effect of grazing exclusion on soil quality, we investigated soil properties and nutrients by comparing free-grazing (FG) and grazing exclusion (GE) grasslands in Tibet. Soil properties -including soil bulk density, pH, particle size distributions, and proportion of aggregatesshowed no significant difference between FG and GE plots.

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Section: Published By Copernicus Publications On Behalf Of the Europementioning

confidence: 89%

Section: Published By Copernicus Publications On Behalf Of the Europementioning

confidence: 99%

Section: Effect Of Grazing Exclusion On Soil Propertiesmentioning

confidence: 99%

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Short-term grazing exclusion has no impact on soil properties and nutrients of degraded alpine grassland in Tibet, China

et al. 2015

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“…The mean annual precipitation is 452 mm with more than 60% occurring between June and September, and the mean annual evaporation is 1780 mm [31]. The mean annual temperature is 6.2 • C; the coldest month is January, which has an average of −16.2 • C; and the hottest month is July, which has an average temperature of 23.8 • C. The average annual frost-free period is 150 days [28,32]. The soil is an aeolian sandy soil with a typical composition of 90.9% sand, 5.0% silt, and 4.1% clay, which developed from sandy parent material through the action of wind and is characterized by coarse texture and loose structure [28,33,34].…”

Section: Introductionmentioning

confidence: 99%

“…The mean annual temperature is 6.2 • C; the coldest month is January, which has an average of −16.2 • C; and the hottest month is July, which has an average temperature of 23.8 • C. The average annual frost-free period is 150 days [28,32]. The soil is an aeolian sandy soil with a typical composition of 90.9% sand, 5.0% silt, and 4.1% clay, which developed from sandy parent material through the action of wind and is characterized by coarse texture and loose structure [28,33,34]. The soil total organic carbon (TOC), total nitrogen (TN) and total P (TP) concentration at 0-15 cm are 4.35-5.22 g·kg −1 , 300-346 mg·kg −1 , and 125-149 mg·kg −1 , respectively.…”

Section: Introductionmentioning

confidence: 99%

Experimental Manipulation of Precipitation Affects Soil Nitrogen Availability in Semiarid Mongolian Pine (Pinus sylvestris var. mongolica) Plantation

Fan

et al. 2017

Water

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Expected changes in precipitation over large regions of the world under global climate change will have profound effects on terrestrial ecosystems in arid and semiarid regions. To explore how changes in the amount of precipitation in the growing season would affect soil nitrogen (N) availability in a semiarid ecosystem, we established rainout shelters and irrigation systems by simulating 30% reduced (DRY) and 30% increased precipitation (WET) relative to natural precipitation (Control) to measure some key soil process properties for two growing seasons in a nutrient-poor Mongolian pine (P. sylvestris var. mongolica) plantation. Both WET and DRY treatments significantly affected monthly soil inorganic nitrogen concentrations, which showed a higher inorganic N under DRY than Control in each month and lower in WET than Control. Monthly soil microbial biomass N content was reduced by DRY and raised by WET treatments. The results indicated the asynchrony of the availability of soil moisture and soil nutrients in Mongolian pine plantations at the Horqin Sandy Lands in Northeast China. Water limited plant growth in Mongolian pine plantations when precipitation decreased, and nitrogen limitation became increasingly important when precipitation increased. Accumulation of N in microbial biomass is an important mechanism for N cycling in this ecosystem. To effectively manage Mongolian pine plantations, it is advised that evapotranspiration is minimized when precipitation decreases and that there is an increase in soil N availability by protecting litterfall when precipitation increases.

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Grazing enhances soil nutrient effects: Trade‐offs between aboveground and belowground biomass in alpine grasslands of the Tibetan Plateau

2017

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Understanding the impact of grazing patterns on grassland production is of fundamental importance for grassland conservation and management. The objective of this study is to obtain an understanding of the trade‐offs between aboveground biomass and belowground biomass, which are influenced by environmental factors in free grazing (FG) and grazing exclusion (GE) alpine grasslands on the Tibetan Plateau. We explored the relationships between the trade‐off and environmental factors using correlation analysis, a generalized additive model and a structural equation model, and then found that the key factors that determine trade‐off showed differences in FG and GE grasslands and that the final structural equation modeling result explained that 96% (path coefficient = 0.96) and 65% (path coefficient = 0.65) of the variations in the trade‐off were due to FG or GE classifications, respectively. The results demonstrated that soil organic carbon, soil carbon/soil nitrogen, and soil available nitrogen affect the trade‐off between aboveground and belowground biomass in FG grasslands more obviously than in GE grasslands. However, the effects of growing season temperature on the trade‐off were insignificant, −0.218 and −0.181 in FG and GE grasslands, respectively. FG increased the soil bulk density, which resulted in an alteration in the soil pore size distribution and a greater resistance to root penetration. In addition, FG affected the level of soil nutrition, which will affect the nitrogen mineralization of decomposition and absorption, as well as the root biomass. Consequently, this study can provide guidance to improve the quality of grassland.

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Effects of different grassland restoration approaches on soil properties in the southeastern Horqin sandy land, northern China

Cited by 38 publications

References 31 publications

Short-term grazing exclusion has no impact on soil properties and nutrients of degraded alpine grassland in Tibet, China

Short-term grazing exclusion has no impact on soil properties and nutrients of degraded alpine grassland in Tibet, China

Experimental Manipulation of Precipitation Affects Soil Nitrogen Availability in Semiarid Mongolian Pine (Pinus sylvestris var. mongolica) Plantation

Grazing enhances soil nutrient effects: Trade‐offs between aboveground and belowground biomass in alpine grasslands of the Tibetan Plateau

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