Effects of Land-Use Change on Soil Organic Carbon and Nitrogen

Jafarian, Zeinab; Kavian, Ataollah

doi:10.1080/00103624.2013.741949

Cited by 33 publications

(23 citation statements)

References 24 publications

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“…It demonstrates that soil aggregate stability of forest converted from farmland was better than slope cropland and it would help to maintain soil stability. The results were similar with Jafarian and Kaviana (2012). Zheng et al (2011b) also reported that the conversion of cropland to forestland improved soil structure and nutrient.…”

Section: Resultssupporting

confidence: 81%

Soil structure and carbon distribution in subsoil affected by vegetation restoration

Zhao

Han

Yang

et al. 2014

Plant Soil Environ.

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The depth of sampling is an important factor for evaluating soil stability. The objective of this study was to test soil aggregate particle-size fractions and soil organic carbon (SOC) in water-stable aggregate by vegetation restoration through 0-60 cm soil profile. We collected soil samples in 30 years old Robinia psendoacacia (Rr); Platycladus orientalis (Po); Pinus tabulaeformis (Pt); abandoned land (Ab), and slope cropland (Sc), which were separated into > 2, 2-1, 1-0.25, 0.25-0.053, and < 0.053 mm fractions. The > 0.25 mm water-stable aggregates (WSA) and mean weight diameter (MWD) were calculated in 0-60 cm soil depth. Results showed that soil aggregate fractions (> 0.25 mm) of four vegetation types were significantly (P < 0.05) higher in 40-60 cm soil depth under Po, Pt, and Ab compared with Sc and the SOC distribution in macro-aggregates (> 0.25 mm) under Rr, Po, Pt, and Ab was higher more than 37.7, 92.4, 92.5, 79.1%, respectively in 40-60 cm compared with Sc additionally, > 0.25 mm WSA and MWD was significantly higher in Pt soil in 20-40 cm, 40-60 cm soil depth (P < 0.05). The results demonstrated that soil stability was enhanced and SOC content was increased after converting slope cropland to forest, especially under Pt forest that greatly influenced the subsoil.

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Section: Resultssupporting

confidence: 81%

Soil structure and carbon distribution in subsoil affected by vegetation restoration

Zhao

Han

Yang

et al. 2014

Plant Soil Environ.

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“…A number of studies reported on the influence of livestock grazing on the amount of soil organic carbon (SOC) [4]. Observation from this study demonstrated a significantly decreased in SOC with increased grazing pressure in the montane forest of Mount Kilimanjaro.…”

Section: The Effect Of Livestock Grazing On Soil Organic Carbon (Soc)mentioning

confidence: 71%

“…The impacts of livestock grazing on total soil N storage have been reported through a number of studies ( [4] [38]). The percentage total nitrogen (N) responded negatively with increased livestock grazing gradients such that soils from moderate and heavily grazed areas in the montane forest were significantly lower than in the least and ungrazed areas.…”

Section: The Effect Of Livestock Grazing On the Total Soil Nitrogenmentioning

confidence: 99%

“…The use of natural habitat for livestock production has caused serious degradation of ecosystems worldwide [3]. This is because of the human population pressure associated with increased in the land-use changes that affect soil properties [4]. The recent land use change from pasture to cropland in Longido District has caused scarcity of pasture and consequently increased the encroachment in montane forests through livestock grazing [5].…”

Section: Introductionmentioning

confidence: 99%

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The Impact of Livestock Grazing on Soil Characteristics in Mount Kilimanjaro, Tanzania

Mligo¹

2015

GEP

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Livestock grazing is an anthropogenic disturbance on the soil properties in montane forests of the northern slopes of Mount Kilimanjaro. It was determined the effect of livestock grazing on SOC, N, CEC, SAS, SFD and P in the montane forest. Forty plots were randomly established for collection of soil samples. Data showed livestock grazing decreased the accumulation of SOC and consequently negatively affected the natural pattern of N, P, SFD, CEC and SAS. An opposing pattern of available soil phosphorus was interpreted that the nutrient pool retained in plant tissues particularly in the long-lived trees, which were absent in heavily grazed area. The observed positive correlation between SOC with TN and CEC implies the livestock grazing impacts on the former negatively affected the later soil parameters. Low fungal density in degraded parts of the montane forest indicates that they are sensitive to the current land use change. Based on the observation from this study, it can be regarded that excessive livestock grazing has a long-term negative ramification for soil conservation in montane forest. An important decision has to be sought off with regard to the conservation management of soil characteristics of the montane forest in Kilimanjaro Mountain.

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“…Recent studies claim that land use changes are one of the most important factors that affect surface water characteristics and soil fertility [6][7][8]. During the last decades, land use changes and water quality of rainwater harvesting systems have been associated with population growth, urban development, intensive agricultural activities, degradation of pastures and deforestation [9,10].…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Spatiotemporal Effects of Land Use Changes on Runoff and Nitrate Loads in the Talar River

Kavian

Mohammadi

Gholami

et al. 2018

Water

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This research surveyed the effects of land use changes on flow nitrate pollution in the Talar River (northern Iran), using Landsat images of 1991 and 2013 and the Soil and Water Assessment Tool (SWAT). The results indicated that forest areas decreased by 14.9% and irrigated crops, dry land farming areas, range lands and residential areas increased by 46.8%, 31.1%, 4.7% and 17.5%, respectively. To calibrate and validate the studied period, the Nash Sutcliffe model efficiency (NSE) and coefficient of determination (R 2 ) were applied, ranging from 0.57 to 0.75 and from 0.62 to 0.76 for flow simulation and 0.84 and 0.63 and 0.75 and 0.83 for nitrate simulation, respectively. The results of land use scenarios indicated that respective water flow and nitrate loads increased by 34. 4% and 42.2% in 1991-2013 and may even increase by 42.3% and 55.9% in the simulated period of 2013-2050 in all sub-basins. It is likely that the main reason for these results was due to the increase in agricultural activities and the decrease in forestry areas. Our findings showed the useful combination of modelling techniques (land cover changes and SWAT) to develop valuable maps able to design correct land management plans and nature-based solutions for water quality of runoff water harvesting systems in the future.

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Effects of Land-Use Change on Soil Organic Carbon and Nitrogen

Cited by 33 publications

References 24 publications

Soil structure and carbon distribution in subsoil affected by vegetation restoration

Soil structure and carbon distribution in subsoil affected by vegetation restoration

The Impact of Livestock Grazing on Soil Characteristics in Mount Kilimanjaro, Tanzania

Assessment of the Spatiotemporal Effects of Land Use Changes on Runoff and Nitrate Loads in the Talar River

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