HUBUNGAN STOK KARBON TANAH DAN SUHU PERMUKAAN PADA BEBERAPA PENGGUNAAN LAHAN DI NAGARI PADANG LAWEH KABUPATEN SIJUNJUNG

The content of soil C-organic is strongly influenced by land management. Plants tend to increase soil organic C-stock, however an increase in soil temperature can increase the rate of decomposition of soil organic matter which will reduce soil organic C-stock. The aim of the study is to look at the relationship of soil organic carbon stock (SOCS) with changes in soil surface temperature. The study was conducted using a survey method consisting of 5 stages, namely preparation, pre-survey, main survey, soil analysis in the laboratory and data processing. Soil sampling is done by purposive random sampling under several land units (LU). LU is limited by the order of the soil, slope, and land use. Based on the land unit map, we found 14 land units in the study area. Soil samples were taken at a depth of 0-20 cm. Surface temperature measurements are carried out directly in the field using a room temperature thermometer. The parameters analyzed are organic-C, organic particulate-C, and bulk density (BD). The research data were processed statistically using simple linear regression equations. The results showed that the measurement of rice field surface temperature had the highest temperature of 34 0C, and rubber plantations had the lowest temperature of 28 0C. Organic-C affects soil BD, the higher the value of organic-C, the lower the BD value. The highest carbon stock was found in soil unit 10 with rubber plantations with a slope of 8-15%, 41 kg m-2 and decreased with increasing slope. The difference in the value of SOCS in rice fields is influenced by land management, because there is no return of crops residue in the form of straw to the ground. The results of the regression analysis showed that surface temperature did not have a significant effect on the SOCS value.Keywords : carbon stock, land use, Padang Laweh

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Effect of deforestation and subsequent land use management on soil carbon stocks in the South American Chaco

SOIL ◽

10.5194/soil-4-251-2018 ◽

2018 ◽

Vol 4 (4) ◽

pp. 251-257 ◽

Cited By ~ 5

Author(s):

Natalia Andrea Osinaga ◽

Carina Rosa Álvarez ◽

Miguel Angel Taboada

Keyword(s):

Land Use ◽

Land Use Change ◽

Warm Season ◽

Continuous Cropping ◽

Soil Organic C ◽

Organic C ◽

Soil C ◽

C Stocks ◽

C Stock ◽

The Impact

Abstract. The subhumid Chaco region of Argentina, originally covered by dry sclerophyll forest, has been subjected to clearing since the end of the 1970s and replacement of the forest by no-till farming. Land use changes produced a decrease in aboveground carbon (C) stored in forests, but little is known about the impact on soil organic C stocks. The aim of this study was to evaluate soil C stocks and C fractions up to 1 m depth in soils under different land use: <10-year continuous cropping, >20-year continuous cropping, warm-season grass pasture and native forest in 32 sites distributed over the Chaco region. The organic C stock content up to 1 m depth expressed as equivalent mass varied as follows: forest (119.3 Mg ha−1) > pasture (87.9 Mg ha−1) > continuous cropping (71.9 and 77.3 Mg ha−1), with no impact of the number of years under cropping. The coarse particle fraction (2000–212 µm) at 0–5 and 5–20 cm depth layers was the most sensitive organic carbon fraction to land use change. Resistant carbon (<53 µm) was the main organic matter fraction in all sample categories except in the forest. Organic C stock, its quality and its distribution in the profile were responsive to land use change. The conversion of the Chaco forest to crops was associated with a decrease of organic C stock up to 1 m depth and with the decrease of the labile fraction. The permanent pastures of warm-season grasses allowed higher C stocks to be sustained than cropping systems and so could be considered a sustainable land use system in terms of soil C preservation. As soil organic C losses were not restricted to the first few centimetres of the soil, the development of models that would allow the estimation of soil organic C changes in depth would be useful to evaluate the impact of land use change on C stocks with greater precision.

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Calculating Organic Carbon Stock from Forest Soils

Notulae Botanicae Horti Agrobotanici Cluj-Napoca ◽

10.15835/nbha43210141 ◽

2015 ◽

Vol 43 (2) ◽

pp. 568-575 ◽

Cited By ~ 3

Author(s):

Lucian Constantin DINCĂ ◽

Maria DINCĂ ◽

Diana VASILE ◽

Gheorghe SPÂRCHEZ ◽

Liviu HOLONEC

Keyword(s):

Organic Carbon ◽

Forest Soils ◽

Soil Type ◽

Carbon Stock ◽

Correlation Coefficients ◽

Soil Bulk Density ◽

Regression Equations ◽

Organic C ◽

C Stock ◽

Organic Carbon Stock

The organic carbon stock (SOC) (t/ha) was calculated in different approaches in order to enhance the differences among methods and their utility regarding specific studies. Using data obtained in Romania (2000-2012) from 4,500 profiles and 9,523 soil horizons, the organic carbon stock was calculated for the main forest soils (18 types) using three different methods: 1) on pedogenetical horizons, by soil bulk density and depth class/horizon thickness; 2) by soil type and standard depths; 3) using regression equations between the quantity of organic C and harvesting depths. Even though the same data were used, the differences between the values of C stock obtained from the three methods were relatively high. The first method led to an overvaluation of the C stock. The differences between methods 1 and 2 were high (and reached 33% for andosol), while the differences between methods 2 and 3 were smaller (a maximum of 23% for rendzic leptosol). The differences between methods 2 and 3 were significantly lower especially for andosol, arenosol and vertisol. A thorough analysis of all three methods concluded that the best method to evaluate the organic C stock was to distribute the obtained values on the following standard depths: 0 - 10 cm; 10 - 20 cm; 20 - 40 cm; > 40 cm. For each soil type, a correlation between the quantity of organic C and the sample harvesting depth was also established. These correlations were significant for all types of soil; however, lower correlation coefficients were registered for rendzic leptosol, haplic podzol and fluvisol.

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Historical and simulated ecosystem carbon dynamics in Ghana: land use, management, and climate

Biogeosciences Discussions ◽

10.5194/bgd-5-2343-2008 ◽

2008 ◽

Vol 5 (3) ◽

pp. 2343-2368 ◽

Cited By ~ 1

Author(s):

Z. Tan ◽

L. L. Tieszen ◽

E. Tachie-Obeng ◽

S. Liu ◽

A. M. Dieye

Keyword(s):

Climate Change ◽

Land Use ◽

Crop Production ◽

Fertilization Rate ◽

N Fertilization ◽

Land Use Management ◽

Soil Organic C ◽

Organic C ◽

Ecosystem Carbon ◽

C Stock

Abstract. We used the General Ensemble biogeochemical Modeling System (GEMS) to simulate responses of natural and managed ecosystems to changes in land use, management, and climate for a forest/savanna transitional zone in central Ghana. Model results show that deforestation for crop production during the last century resulted in a substantial reduction in ecosystem carbon (C) stock from 135.4 Mg C ha−1 in 1900 to 77.0 Mg C ha−1 in 2000, and in soil organic C stock within the top 20 cm of soil from 26.6 Mg C ha−1 to 21.2 Mg C ha−1. If no land use change takes place from 2000 through 2100, low and high climate change scenarios (increase in temperature and decrease in precipitation over time) will result in losses of soil organic C stock by 19% and 25%, respectively. A low nitrogen (N) fertilization rate is the principal constraint on current crop production. An increase in N fertilization under the low climate change scenario would increase crop yield by 14% with 30 kg N ha−1 and by 38% with 60 kg N ha−1, leading to an increase in the average soil C stock by 12% and 29%, respectively, in all cropland by 2100. The results suggest that the climate changes in the future from current climate conditions will not necessarily become a determinant control on ecosystem C fluxes and crop production, while a reasonable N fertilization rate is critical to achieve food security and agricultural sustainability in the study area through the 21st century, and current cropping systems could be optimized to make full use of the rainfall resource.

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Distribution of carbon stocks in drainage areas on peatlands of Sungai Tohor Village, Meranti Islands District, Indonesia

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d221149 ◽

2021 ◽

Vol 22 (11) ◽

Author(s):

Sinta Haryati Silviana ◽

BAMBANG HERO SAHARJO ◽

SIGIT SUTIKNO

Keyword(s):

Land Use ◽

Carbon Stock ◽

Ecological Impact ◽

Ghg Emissions ◽

Carbon Stocks ◽

Secondary Forests ◽

Observation Distance ◽

Burnt Area ◽

Rubber Plantations ◽

C Stock

Abstract. Silviana SH, Saharjo BH, Sutikno S. 2021. Distribution of carbon stocks in drainage areas on peatlands of Sungai Tohor Village, Meranti Islands District, Indonesia. Biodiversitas 22: 5106-5114. Peatland ecosystems provide a variety of environmental services and biodiversity with their ability to store and absorb carbon. The increase of land clearing followed by the construction of drainage or canal has resulted in the degradation of peatlands and is prone to fire incidences. Canal construction, whether we realize it or not, has a negative ecological impact on the in situ (local) environment, namely land degradation and subsidence, as well as a wider (global) impact in the form of loss of carbon stocks, increased GHG emissions that can trigger global warming. This study aims to identify the distribution of carbon in the area where drainage is made where the distribution of carbon stock in starting at a distance of 10 m, 50 m, 100 m, 250 m, and 350 m from the canal. The study was conducted on the community plantations including unburned areas (rubber plantations and secondary forests) and burned areas. The influence of land use and drainage development on carbon stock distribution is rarely known. The results showed a decrease in C-Stock with a decrease in drainage distance. The quantity of carbon stock in secondary forests ranged from 13.275 ton ha-1 - 24.839 ton ha-1, Burnt Area-1 ranged from 6.995 ton ha-1 - 11.59 ton ha-1, and Burnt Area 2 ranged from 4.677 ton ha-1 - 12.580 ton ha-1. In contrast, rubber plantations had higher C-stock in the initial observation distance, around 9.064 ton ha-1 - 11.805 ton ha-1, which may be due to intensive land use near the canal.

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Impact of Land-Use Change on Carbon Stocks in Meadow Steppe of Northeast China

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.108.262 ◽

2011 ◽

Vol 108 ◽

pp. 262-268 ◽

Cited By ~ 1

Author(s):

Pei Yong Lian ◽

De Hui Zeng ◽

Jin Ye Liu ◽

Fan Ding ◽

Zhi Wei Wu

Keyword(s):

Land Use ◽

Aboveground Biomass ◽

Northeast China ◽

Carbon Stock ◽

Primary Objective ◽

Meadow Steppe ◽

Organic C ◽

C Storage ◽

Land Use Types ◽

The Impact

An improved understanding of changes in carbon storage of terrestrial ecosystems is very important for assessing the impacts of increasing atmospheric CO2 concentration and climate change on the terrestrial biosphere. Accurately predicting terrestrial carbon (C) storage requires understanding the carbon stock, because it helps us understand how ecosystems would respond to natural and anthropogenic disturbances under different management strategies. We investigated organic C storage in aboveground biomass, litter, roots, and soil organic matter (SOM) in five land-use types (i.e. artificial pasture, AP; natural meadow, NM; corn plantation, CP; temperate savanna, TS; and bush wood, BW) in meadow steppe of Northeast China. The primary objective of this study was to ascertain the impact of different land-use types on the carbon stock. The total C storage (including C stored in aboveground biomass, litter, roots, and 0–100-cm soil layers) did not significantly differ between one and another type among the five pairs (P>0.05), with the exception of AP2-BW pair. The total C storage changes in value varying from 5958.09 g C m-2 for plot NM2 to 11922.87 g C m-2 for plot CP1. The C stored in the aboveground biomass was less than 1177.96 g C m-2, accounting for negligible amounts (<1% of the total) of total C storage in the ecosystem except corn plantation. The amount of C stored in SOM accounted for less than 85% of the total C storage in TS, AP2, and NM3, and the C stored in litter was very low (<1.5%), compared to other pools in the ecosystem. The amount of C stored in the roots varied from 0 g C m-2 for plot BW, CP1, and CP2 to 2032.32 g C m-2 for plot NM3, and it accounted for less than 20% of C storage in the grassland.

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Distribution of soil organic C, N and P in three adjacent land use patterns in the northern Loess Plateau, China

Biogeochemistry ◽

10.1007/s10533-009-9350-8 ◽

2009 ◽

Vol 96 (1-3) ◽

pp. 149-162 ◽

Cited By ~ 69

Author(s):

Xiaorong Wei ◽

Mingan Shao ◽

Xiaoli Fu ◽

Robert Horton ◽

Yong Li ◽

...

Keyword(s):

Land Use ◽

Loess Plateau ◽

Soil Organic C ◽

Land Use Patterns ◽

Organic C ◽

Use Patterns

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Carbon stock in the solum of some coarse-textured soils under secondary forest, grassland fallow, and bare footpath in the derived savanna of south-eastern Nigeria

Soil Research ◽

10.1071/sr11096 ◽

2012 ◽

Vol 50 (2) ◽

pp. 157 ◽

Cited By ~ 4

Author(s):

S. E. Obalum ◽

Y. Watanabe ◽

C. A. Igwe ◽

M. E. Obi ◽

T. Wakatsuki

Keyword(s):

Carbon Stock ◽

Secondary Forest ◽

Terrestrial Ecosystems ◽

C Sequestration ◽

Management Options ◽

Organic C ◽

South Eastern ◽

Derived Savanna ◽

C Stock ◽

Relative Potential

Quantitative data on carbon stock (C stock) in and beyond the topsoil (0–30 cm) under natural terrestrial ecosystems in West African savanna could provide information about their relative potential, and management options, for C sequestration, but these data are still scanty in the region. In selected locations (Nsukka, Obimo, and Ibagwa-aka) in the derived savanna zone of south-eastern Nigeria, secondary forest (SFT), grassland fallow (GLF), and bare footpath (BFP) were sampled from the topsoils (0–30 cm) and subsoils (30–60 cm) in triplicate. The soils are generally sandy, with low (1.4–13.8%) mean silt content. Mean bulk density ranged from 1.30 to 1.83 Mg/m3. The soils were acidic (pHwater 4.0–4.8) and low in organic C (0.10–1.14%). There was a consistent trend in C stock (SFT > GLF > BFP) in the topsoil, whereas only higher values in SFT than BFP were consistent in the subsoil. In both soil layers, the scale of the differences among the land-cover types was location-specific. Values of C stock were higher in the topsoil than subsoil, except for GLF and BFP at Obimo due to recent bush burning. Irrespective of location, the mean topsoil–subsoil values under SFT, GLF, and BFP were 45.7–30.6, 27.7–25.8, and 19.0–18.8 Mg/ha, respectively. Soil structural stability, indexed as the ratio of organic matter to silt + clay, explained roughly 61 and 89% of the variability in C stock of topsoils and subsoils, respectively. These results should benefit the planning of C sequestration projects in savanna agroecosystems of West Africa.

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Soil carbon stock in different land-use systems in the hilly terrain of Mizoram, Northeast India

Journal of Applied and Natural Science ◽

10.31018/jans.v13i2.2615 ◽

2021 ◽

Vol 13 (2) ◽

pp. 723-728

Author(s):

Chowlani Manpoong ◽

Wapongnungsang ◽

S. K. Tripathi

Keyword(s):

Land Use ◽

Soil Carbon ◽

Carbon Stock ◽

Northeast India ◽

Rubber Plantation ◽

Land Uses ◽

Hilly Terrain ◽

Soil Carbon Stock ◽

C Stock ◽

Tephrosia Candida

Soil carbon is one of the most affected variables to land-use change in tropics. The soil carbon flux plays a major role in regulating microbial activities and nutrient distribution in soil. This study aimed to evaluate the soil carbon stock in various land uses at different depths in the hilly terrain of Mizoram, Northeast India. Soil samples at 0-10 cm, 10-20 cm and 20-30 cm soil depths were collected from Rubber plantation (RP), Oil palm plantation (OPP), Teak plantation (TP), Bamboo Forest (BF), 5 years fallow (5YF), 10 years fallow (10YF), Tephrosia candida plantation (TCP), Horticulture garden (HORT), Homegarden (HG) and Natural forest (NF). Soil carbon stock varied significantly (p <0.05) across the land uses and depths. The soil under Tephrosia candida stand had significantly (p <0.05) higher values of C stock (73.66 Mg ha-1) which may be due to high biomass, dense vegetative cover and high C in root exudates. The minimum C stock estimated in Horticulture garden (43.28 Mg ha-1) is probably due to reduced soil organic matter. Soil carbon stock in Homegarden, Teak plantation, Bamboo forest and Rubber plantation ranged from 46.82 Mg ha-1 to 59.34 Mg ha-1 whereas 5 years and 10 years fallow land, Natural forest and Oil palm plantation ranged from 61.35 Mg ha-1 to 73.35 Mg ha-1. The study indicated that the land use change in the mountainous region significantly affected the carbon stock in the soil. A proper land use management strategies to increase the soil organic matter is recommended to enhance the carbon stock in this region.

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Mixture-effects on tree biomass production and soil organic C quality in a temperate plantation forest

10.5194/egusphere-egu21-11964 ◽

2021 ◽

Author(s):

Iftekhar Ahmed ◽

Andrew Smith ◽

Douglas Godbold

Keyword(s):

Biomass Production ◽

Soil Organic C ◽

Organic C ◽

Soil C ◽

Mixture Effects ◽

Mixed Litter ◽

Species Mixture ◽

C Stock ◽

Fast Growing Species ◽

Recalcitrant C

Forest restoration and afforestation on degraded lands are receiving tremendous research efforts globally as a climate change mitigation option. There is a growing interest in mixed species plantation to ensure sustainable ecosystem services and biodiversity. However, successful mixture of achieving these potential benefits is rare. We studied the polyculture of two pioneer fast growing species (i.e. B. pendula, &#160;and A. glutinosa- of which A. glutinosa is N-fixing) and one shed tolerant species with slow juvenile growth (i.e. F. sylvatica) to examine the effects of species mixture on biomass production and quality of soil organic C stock following the replacement series approach. Standing woody biomass in polyculture demonstrated no over-yielding, presumably due to concurrent impacts of suppression of F sylvatica by two fast growing species and competitive reduction benefits in A. glutinosa. Similarly, standing fine root biomass production and turnover showed no significant mixture effect. &#160;Although the quantity of soil organic C stock was unaffected by tree mixture, the vertical distribution of biodegradable C fractions was differed between mono and polyculture stands, &#160;most probably due to slow decay rate of mixed litter. We found that species mixture decreased soil C lability in the upper soil layers, and increased recalcitrant C &#160;in deep soil (>40 cm) that has enormous potential for long-term sequestration. We concluded that contrasting growth responses can result in no biomass over-yielding in polyculture stands but the mixed litter can affect soil C quality.Key words: Mixture effects, Tree polyculture, biomass, over-yielding, C quality, recalcitrant C

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