soil carbon sequestration in dryland farming systems

... 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, ... Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com) Foreword Carbon (C) sequestration in forest ecosystems has become an important issue both in ... 17 17 The Natural Dynamic of Carbon in Forest Ecosystems 2.1 Carbon Input into Forest Ecosystems 2.1.1 Carbon Assimilation 2.1.2 Influx of Gaseous Carbon Compounds 2.1.3...

Ngày tải lên: 28/03/2014, 10:20

... significantly decreased soil compaction The beneficial effects of litter-fall on decreasing compaction was greatest on surface soil Conclusions…… The COX stock increased linearly in surface soil compared ... surface soil compared to a non-linear increase in subsurface soil However, both CNOX and CT stocks increased quadratically over time Summing the C content over soil depth, the profile-wise accumulation ... 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...

Ngày tải lên: 31/03/2014, 09:21

... • • • • 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 ... to agricultural soils within organic farming practices, very few data are present in the literature up to now on its capacity for a net sequestration of organic carbon in soil Soils under maize ... 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...

Ngày tải lên: 29/05/2014, 14:41

... products in Portugal [10] indicate that they may be a carbon sink, provided that new products are additional to the existing ones In this study, carbon sequestration in wood products in Portugal ... stock-change approach, carbon sequestration is estimated as the sum of the change in carbon stocks in forest and the change in carbon stocks in wood products consumed in the country In the atmospheric-flow ... The change in carbon stocks in wood products was calculated as the difference between carbon contained in wood products consumed in a reference year, not decaying in that year, and inherited emissions...

Ngày tải lên: 08/08/2014, 00:22

... resulting in elevated soil moisture only in the immediate days following a rain event, limiting the access of organisms to resources that may be available in the soil or maintaining them in periods ... a pulse, including: seasonal precipitation affects initial soil moisture; inter-annual variation in pulses (pulse history) influencing soil resources; soil texture alters water infiltration and ... affect carbon cycling in soils at different temporal scales A primary goal of this research is to generate data to be used in predictive modeling exercises of soil respiration in water limited ecosystems...

Ngày tải lên: 13/11/2014, 09:11

... 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 ... 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 ... 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...

Ngày tải lên: 07/10/2015, 10:10

... 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 ... 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 ... 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...

Ngày tải lên: 13/10/2015, 15:54

... agricultural soils can increase binding sites or even act as a sink for trace metals already present in soil, reducing metal concentration in the soil solution, despite the biosolids having higher ... waste recycling in periurban and intensive agriculture in south-east Asia" in Ha Tay and Vinh Phuc provinces, carried out in a collaboration between CSIRO and NISF We would like to kindly thank ... a fertilizer significantly increased TOC and Ntot in the soils The organic matter in biosolids increases the ability of soil to retain water The biosolids treatment involved application of 7-63...

Ngày tải lên: 05/03/2014, 16:20

... arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan and valine (NRC, 1993) 2.5.2 Lysine requirement Lysine requirement values for fish are shown in ... various farming systems of fresh water fish culture existing in Vietnam, including household pond culture, rice cum fish, the integration of fish culture with livestock farming and cropping - VAC ... potential for improving fish productivity and reducing feed costs in smallholder fish farming systems in Central Vietnam, by improving the existing feeding practices By reducing the proportions...

Ngày tải lên: 13/03/2014, 19:19

... from  industrial  activities  in the urban areas [4, 20]. In Nam Dinh, the soil samples  were  taken  in the  fields  where  the  DANIDA‐IWMI  project  on  wastewater  reuse  in agriculture in Vietnam was carried out [20].  ... had significantly increased both TOC and Ntot  in soils.  This  finding  is  in agreement  with  previous studies where wastewater irrigation  had  been  shown  to  increase  soil organic  C  ... the  Nam  Dinh  site,  irrigation  using  wastewater  started  in the  1980s  as  a  result  of  increasing  urbanisation.  The  sewage  mainly  comprises  domestic  water  but  also  includes ...

Ngày tải lên: 14/03/2014, 15:20

... organic farming systems is the health of the soil P K DELATE which nitrogen-containing materials (e.g., manure, yard waste, or kitchen Naturally mined waste) are mixed with a carbon- containing source ... being incorporated into biologically active soil organic matter The 15 percent increase in water stable aggregation (Table 1) also suggests the slight increase in soil organic matter was beginning ... their origin Leaving plant residue from the previous year’s crop can increase the level of soil carbon sequestration in organic fields farming are all management practices that can enhance carbon...

Ngày tải lên: 20/04/2014, 17:43

... thinking Because of the synthesis impairment, acetylcholine is decreased in the neurons in the Alzheimer disease brain, leading to the incapability of learning, memory, and thinking Providing ... considered for obtaining desired treatment effects The studied ways of CNT administration include oral and injections such as subcutaneous injection, abdominal injection, and intravenous injection There ... targeting of carbon nanotubes in mice Nat Nanotechnol 2007, 2:47-52 56 Liu Z, Tabakman S, Welsher K, Dai H: Carbon nanotubes in biology and medicine in vitro and in vivo detection, imaging and...

Ngày tải lên: 20/06/2014, 22:20

... _ 1 Institute Information Project Name Improving traditional integrated farming systems (VAC) - a new livelihood option for poor farmers in the coastal communities Vietnamese Institution ... two provinces 5.3 Capacity Building A capacity building initiative has commenced at CEDMA The transfer of technology in the area of water recirculating systems in aquaculture, nutrient cycling across ... survey has been conducted to collect the base line information on the economic status of farmers participating in traditional VAC farming systems in two selected districts of Vietnam The staff...

Ngày tải lên: 21/06/2014, 04:20

... not defined Institute Information Project Name Improving traditional integrated farming systems (VAC) - a new livelihood option for poor farmers in the coastal communities Vietnamese Institution ... the income base to sustain livelihoods of poor coastal farmers in the Central provinces This objective is to be achieved by improving the productivity of the existing traditional farming systems ... questionnaire and interviewing of existing farming communities who are participating in the traditional VAC systems; selection of 20 households/farms to demonstrate improved VAC practices; drafting of action...

Ngày tải lên: 21/06/2014, 04:20

... efficiency while minimizing costs Figure 3: Photographs of training activities in Ha Tinh Meetings in Nghe An There are demonstration sites in this province One site was developed in 2008 for eel ... disseminated to local extension workers, the households of modified VAC systems and other interesting farming households Training/workshop Workshop in Hue The purpose of this workshop was to introduce ... 11  Institute Information Project Name Improving traditional integrated farming systems (VAC) - a new livelihood option for poor farmers in the coastal communities Vietnamese Institution...

Ngày tải lên: 21/06/2014, 04:20

... to manure, away from strong and direct sunlight and in an area not prone to flooding The container floor plays an important role in maintaining the quality of the culture medium It is suggested ... biofiltration to the system stocking of a high valued fish species is recommended • Inclusion of a biofilter is most suitable for systems nursing fry and fingerlings A biofilter improves water ... operating costs and aquaculture production status 2.1 Establishment costs (investment) Initial establishment for the system including tanks for fish, water storage and filtration, is presented in...

Ngày tải lên: 21/06/2014, 04:20

... in Quang Tri and in Nghe An province) and the rest were built in the second year (2009) (3 in Hue, in Quang Binh, in Ha Tinh, in Nghe An, and in Thanh Hoa) See Appendix for the final economic analysis ... were introduced into integrated systems that is, snake head fish (in demonstration sites), frog (in sites), soft-shell turtle (in sites), grouper fingerlings (in sites), white eel and goby (in ... not defined.  Institute Information Project Name Improving traditional integrated farming systems (VAC) - a new livelihood option for poor farmers in the coastal communities Vietnamese Institution...

Ngày tải lên: 21/06/2014, 04:20

... culture period in the three demonstrations in Thanh Hoa, Ha Tinh and Quang Tri These were 5.22, 4.75 and 6.14 respectively In the beginning of the production cycle, that is from fingerling to 300 ... culture of snakehead in tanks eliminated the notion that aquaculture is only possible in ponds Farmers now have evidence that they can include aquaculture into their integrated farming system with ... estimation of input (consisting of tanks depreciation, fingerlings, feed), operation cost (pumping and labor costs), and the value of output presented by total production (from selling in markets,...

Ngày tải lên: 22/06/2014, 13:20

... (Rh) resulting from decomposition were calculated using the Yasso dynamic soil carbon model [36] This model simulates cycling of carbon in upland forest soils to a depth of m in mineral soil Yasso ... carbon per forested area in forests remaining as forests and an expanded forested area (see Fig 1) Carbon accumulated mainly in the biomass of trees, Carbon sink of Finland’s forests Figure Carbon ... Carbon fluxes in Finland’s forests between 1922 and 2004 Figure Average carbon budget of Finland’s forests in the 1990s (carbon fluxes and annual changes in the carbon stocks (in parentheses) in...

Ngày tải lên: 07/08/2014, 16:20

... photosynthate allocation [3], and on soil microclimate [2] In addition, interactions between species in mixed stands have been reported in some instances [40], which might aect soil respiration Table I Mean ... weighing Sub-samples were oven-dried at 65 C during 48 h in order to convert fresh weight into dry weight 2.4 Extraction of ne roots Root sampling was conducted in October and November 2004 in ... of the mineral soil as well as the gas diusion within it In all the sub-plots and for all moisture modalities, soil temperature and volumetric soil water content were measured hourly, using probes...

Ngày tải lên: 07/08/2014, 16:20