... irrigated with water containing low carbonates The soil inorganic carbon occurs in carbonate minerals in two forms, i.e calcium carbonate (CaCO3) and dolomite (MgCO3) In tropical highly weathered ... larger than in other terrestrial ecosystems (Schlesinger, 1991) In addition peat often plays a major role in the C Carbon sequestration in grasslands grassland/rangeland, involving internal nutrient ... harvesting intensity and soil drainage Current trends in forest management may support (reduced drainage) as well as compromise (e.g whole-tree harvesting) SOC sequestration Carbon sequestration in
Ngày tải lên: 02/07/2020, 23:34
... considered a useful soil health indicator since it is involved in maintaining important ecosystem functions in soil including organic carbon (C) accumulation, infiltration capacity, movement ... cropping cycles the changes in soil organic carbon pools due to the addition of pulses in an upland maize-based cropping system in Inceptisols of Indo-Gangetic plains The outcome of the inclusion ... potential sinks of carbon dioxide because of the large quantities of carbon dioxide currently sequestered in these pools and their capacities to continue taking up carbon dioxide Photosynthesizing vegetation
Ngày tải lên: 27/09/2020, 15:28
Biomass and carbon sequestration prediction models for acacia mangium willd plantations in thai nguyen province, viet nam
... within the mineral organic soil; 4) Dead wood refers to all non-living woody biomass not contained in the litter, either standing, lying on the ground, or in the soil Deadwood includes wood lying ... mechanism for mitigating global warming (Husch et al., 2003) Estimation of carbon sequestration in forest ecosystems should include measurements in all relevant carbon sinks (Brown 1999; Brown ... and Carbon Sequestration of Forest Ecosystems 18 Studies on Biomass and Carbon Sequestration in the World 23 Studies on Biomass and Carbon Sequestration in Vietnam 27 Studies on Biomass and Carbon
Ngày tải lên: 15/10/2018, 11:51
Soil organic carbon, carbon sequestration, soil microbial biomass carbon and nitrogen and soil enzymatic activity as influenced by conservation agriculture in pigeonpea and soybean
... major role in maintaining balance between global carbon cycle through sequestration of atmospheric carbon as soil organic carbon Soils store about three times as much carbon as the terrestrial ... reactive N in fumigated soil - Ninhydrin reactive N in unfumigated soil MBC g of soil = - x 24 Weight of soil sample Ninhydrin reactive N in fumigated soil - Ninhydrin reactive N in unfumigated ... to fine tilth In conservation tillage plots, minimum tillage for crop residue incorporation with rotovater two months before sowing and no tillage plots maintained with crop residue shredding
Ngày tải lên: 15/05/2020, 12:13
Determining forest carbon sequestration capacity by remote sensing – GIS combined with quick measurement method (Case study in Que Phong district, Nghe An province)
... paper is available online at http://stdb.hnue.edu.vn DETERMINING FOREST CARBON SEQUESTRATION CAPACITY BY REMOTE SENSING – GIS COMBINED WITH QUICK MEASUREMENT METHOD (CASE STUDY IN QUE PHONG DISTRICT, ... evaluated by determining biomass of forests In this study, we used the remote sensing method for mapping biomass [10] that associated with field survey, for determining the carbon absorption capacity ... of vegetation and carbon sequestration in this area The vegetation index of the area was determined by ENVI 5.0 software as shown in Table 1 Results show that the NDVI index in the study area
Ngày tải lên: 22/05/2020, 01:47
Toward optimal soil organic carbon sequestration and soil physical properties with effects of conservation tillage, organic and synthetic fertilizers under RWCS in an inceptisol: A review
... NPK+FYM (44.4%) maintained a proportionately higher amount of soil C in passive pools With an increase in the dose of fertilization, on average, C allocation into passive pool was increased (33.0, ... organic materials even in the sub-soil The mean pro-file SOC concentration increased from 2.2 g kg-1 in F1 to 4.4 g kg–1 in F4 However, no increase in SOC concentration was observed in treatment F2 ... is a meager variation in structural indices due to paddy rice straw incorporation but influences the soil hydro-physical environment in rice–rice system in clayey soil It increased the hydraulic
Ngày tải lên: 28/09/2020, 17:26
Biomass and carbon sequestration prediction models for acacia mangium willd plantations in thai nguyen province viet nam
... within the mineral organic soil; 4) Dead wood refers to all non-living woody biomass not contained in the litter, either standing, lying on the ground, or in the soil Deadwood includes wood lying ... mechanism for mitigating global warming (Husch et al., 2003) Estimation of carbon sequestration in forest ecosystems should include measurements in all relevant carbon sinks (Brown 1999; Brown ... and Carbon Sequestration of Forest Ecosystems 18 Studies on Biomass and Carbon Sequestration in the World 23 Studies on Biomass and Carbon Sequestration in Vietnam 27 Studies on Biomass and Carbon
Ngày tải lên: 26/03/2021, 09:03
Biomass and carbon sequestration prediction models for acacia mangium willd plantations in thai nguyen province viet nam
... within the mineral organic soil; 4) Dead wood refers to all non-living woody biomass not contained in the litter, either standing, lying on the ground, or in the soil Deadwood includes wood lying ... mechanism for mitigating global warming (Husch et al., 2003) Estimation of carbon sequestration in forest ecosystems should include measurements in all relevant carbon sinks (Brown 1999; Brown ... and Carbon Sequestration of Forest Ecosystems 18 Studies on Biomass and Carbon Sequestration in the World 23 Studies on Biomass and Carbon Sequestration in Vietnam 27 Studies on Biomass and Carbon
Ngày tải lên: 30/03/2021, 11:38
Biomass and carbon sequestration prediction models for acacia mangium willd plantations in thai nguyen province, viet nam
... within the mineral organic soil; 4) Dead wood refers to all non-living woody biomass not contained in the litter, either standing, lying on the ground, or in the soil Deadwood includes wood lying ... mechanism for mitigating global warming (Husch et al., 2003) Estimation of carbon sequestration in forest ecosystems should include measurements in all relevant carbon sinks (Brown 1999; Brown ... and Carbon Sequestration of Forest Ecosystems 18 Studies on Biomass and Carbon Sequestration in the World 23 Studies on Biomass and Carbon Sequestration in Vietnam 27 Studies on Biomass and Carbon
Ngày tải lên: 05/10/2023, 15:19
THE EFFECT OF REFORESTATION ON THE CARBON SEQUESTRATION CAPACITY OF A DEGRADED DRYLAND IN BINH THUAN, VIETNAM
... consist mainly in the reduction of vegetation cover, leading to an increase in soil erosion by wind and water resulting in a displacement of material and to CO2 emissions (Houerou, 1996; Mensching, ... Thang in Binh Thuan Province, Vietnam, with location of sampling plots: NF - Natural forest, P - Plantation, BL - Barren land The study area is located in Bac Binh district, Binh Thuan province, in ... following a study in a degraded A mangium stand in Indonesia (Syahrinudin, 2005) For the A indica site the ratio was set to 0.27 derived from a study about root biomass at a research farm in India
Ngày tải lên: 07/05/2024, 03:30
00051000977 Analysis of blue carbon sequestration potential in mangrove ecosystems A case study in Tien Lang, Hai Phong
... are among the most efficient carbon sequestration systems, storing carbon in both above-ground biomass and soil, with Blue Carbon playing a critical role in mitigating climate change (Donato et ... converted to carbon stocks using a carbon fraction of 0.47 following IPCC (2006) guidelines Soil Organic Carbon (SOC) stock was determined using Loss on Ignition (LOI) and Walkley-Black methods in accordance ... relying solely on generalized root-to-shoot ratios BGC was calculated by converting BGB to carbon stock, assuming a carbon content of 47%, in line with IPCC (2006) guidelines for forest carbon
Ngày tải lên: 14/09/2025, 02:48
Báo cáo hóa học: " Influence of grazing and precipitation on ecosystem carbon cycling in a mixed-grass prairie" potx
... during the wet summer; however, NEE did not differ between grazing treatments in the dry summer These results indicate that grazing intensity and precipitation interact to influence carbon cycling ... important than grazing intensity in grassland carbon cycling (e.g., Risch and Frank 2006) However, we did find interac-tive effects of grazing intensity × pastures and years on ecosystem carbon fluxes ... Average carbon fluxes underscored the large interannual differences in our study (Figure 6) Average NEE was negative (losing carbon) for all three grazing treatments in 2002, but was positive in 2003
Ngày tải lên: 20/06/2014, 23:20
Báo cáo lâm nghiệp: "Carbon accumulation in Finland’s forests 1922–2004 – an estimate obtained by combination of forest inventory data with modelling of biomass, litter and soil" potx
... 6Figure 7 Average carbon budget of Finland’s forests in the 1990s(carbon fluxes and annual changes in the carbon stocks (in parenthe-ses) in kg/m2/year, carbon stocks in kg/m2) remained in the results ... Forest inventory data The NFI has been conducted in Finland nine times so far (Fig 1), each time requiring three to nine years to inventory the entire coun-try The first NFI in 1921–1924 was a line ... man-agement that aimed at increasing the potential of sustainable timber harvests by increasing the GS of trees The striking in-crease in the level of tree growth since the 1970’s (Fig 1) was
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Forest and shrubland canopy carbon uptake in relation to foliage nitrogen concentration and leaf area index: a modelling analysis" ppt
... electron transport in all layers When L was increased by 50% in the model, this increased the shaded leaf fraction in all layers in both canopies Increasing Na by 50% increased A in the top layers ... the Dacrydium site (Fig 3) In contrast, εgross increased, but non-linearly, with increasing foliage nitrogen concentration Changing L resulted in a linear effect on integrated foliage respiration, ... Further, the combined effects of increases in self-shading, and rates of night-time respiration associated with increased foliage area [42], may result in only small increases in net carbon uptake
Ngày tải lên: 08/08/2014, 00:22
Carbon Sequestration in Forest Ecosystems pot
... of the remaining existing forests in maintaining the global carbon cycle cannot be understated By bringing current knowledge on carbon sequestration in forest ecosystems together in one place, ... not certain whether natural C sinks in forests will strengthen through increase in uptake of CO2 as the planet warms (Kintisch 2009) 1.4 Carbon Sequestration The rate of increase in atmospheric ... CO2 (Schlesinger 2006) Thus, C sequestration in forest ecosystem in the following Chapters refers to sequestration of atmospheric CO2 in organic compounds which results in increasing pools of...
Ngày tải lên: 28/03/2014, 10:20
Carbon sequestration in sub-tropical soils under rubber plantations in north-east India potx
... of litter-fall on decreasing compaction was greatest on surface soil Conclusions…… The COX stock increased linearly in surface soil compared to a non-linear increase in subsurface soil However, ... plantations were raised as a secondary forest in the Indian state of Tripura since 1975 to improve degraded lands, generate income for locals, and meet increasing demand for rubber It is expected that ... However, both CNOX and CT stocks increased quadratically over time Summing the C content over soil depth, the profile-wise accumulation of various C fractions increased non-linearly over time Thanks...
Ngày tải lên: 31/03/2014, 09:21
carbon sequestration in agricultural soils a multidisciplinary approach to innovative methods
... • • • • Increase in average temperature in Europe Decrease in rainfall in Southern Europe Increase in rainfall in Northern Europe Possible increase in the frequency of heavy rainfall events across ... compounds in soil The MESCOSAGR project was intended to field prove the validity of this innovative technology in order to introduce it as a routine agronomic practice to enhance carbon sequestration in ... tackling climate change issues is now being acknowledged both under a strategic (i.e., in policy making) and practical standpoint The Kyoto Protocol highlights that carbon sequestration in agricultural...
Ngày tải lên: 29/05/2014, 14:41
Green chimney localized carbon sequestration in closed environment
... environmental reason, such as helping to maintain food security and secure land tenure in developing countries, increasing farm income, restoring and maintaining above-ground and below-ground ... animals, and mankind to live, the level of GHG in the atmosphere has significantly increased since the pre industrial time causing a rise in the Earth’s temperature For instance: carbon dioxide ... term Carbon sequestration by soil due to reduction in CH4 soil sink Furthermore, using soil in the study would result in a complex system of photobioreactor, thus requiring complex modeling and...
Ngày tải lên: 07/10/2015, 10:10
Green chimney localized carbon sequestration in closed environment
... environmental reason, such as helping to maintain food security and secure land tenure in developing countries, increasing farm income, restoring and maintaining above-ground and below-ground ... animals, and mankind to live, the level of GHG in the atmosphere has significantly increased since the pre industrial time causing a rise in the Earth’s temperature For instance: carbon dioxide ... term Carbon sequestration by soil due to reduction in CH4 soil sink Furthermore, using soil in the study would result in a complex system of photobioreactor, thus requiring complex modeling and...
Ngày tải lên: 13/10/2015, 15:54
A Study on the Optimum Backwashing Method applied to Activated Carbon Process in Waterworks
... study selected basins(2 reactivated, spent carbon basins, and virgin carbon basin) of granular activated carbon from 24 ones in the M water purification plant in Daegu; tried to find out the optimum ... backwashing before backwashing backwashing before backwashing Air wash 0min 0 0 Air wash 2min 30 44 22 28 Air wash 4min 34 48 30 38 Air wash 6min 36 48 31 41 Air wash 8min 36 48 32 48 Air wash 10min ... spent carbon has a little more flowing-out germs than reactivated or virgin carbon does; it's desirable to make the backwashing date in spent carbon earlier than in activated or virgin carbon...
Ngày tải lên: 05/09/2013, 08:40