نتایج جستجو برای: organic carbon (oc) storage

تعداد نتایج: 629858  

Journal: :journal of rangeland science 2012
maedeh yousefian khadijeh mahdavi mohammad mahdavi reza tamartash

livestock grazing is one of the most important kinds of land usage that has a high potential to decrease or increase carbon storage in rangeland ecosystem. this research was investigated the effects of enclosure on soil carbon storage in a rangeland with dominant plants of artemisia aucheri. hence, two rangelands of enclosure (shahtappeh-chah mahmood) and no enclosure (chiro) were chosen in sem...

Khadijeh Mahdavi, Maedeh Yousefian Mohammad Mahdavi, Reza Tamartash

Livestock grazing is one of the most important kinds of land usage that has a high potential to decrease or increase carbon storage in rangeland ecosystem. This research was investigated the effects of enclosure on soil carbon storage in a rangeland with dominant plants of Artemisia aucheri. Hence, two rangelands of enclosure (Shahtappeh-Chah Mahmood) and no enclosure (Chiro) were chosen in Sem...

2013
Jens Strauss Lutz Schirrmeister Guido Grosse Sebastian Wetterich Mathias Ulrich Ulrike Herzschuh Hans-Wolfgang Hubberten

[1] Estimates for circumpolar permafrost organic carbon (OC) storage suggest that this pool contains twice the amount of current atmospheric carbon. The Yedoma region sequestered substantial quantities of OC and is unique because its deep OC, which was incorporated into permafrost during ice age conditions. Rapid inclusion of labile organic matter into permafrost halted decomposition and result...

2017
Guangcheng Chen Muhammad Husni Azkab Gail L. Chmura Shunyang Chen Pramudji Sastrosuwondo Zhiyuan Ma I. Wayan Eka Dharmawan Xijie Yin Bin Chen

Mangrove forests have the potential to export carbon to adjacent ecosystems but whether mangrove-derived organic carbon (OC) would enhance the soil OC storage in seagrass meadows adjacent to mangroves is unclear. In this study we examine the potential for the contribution of mangrove OC to seagrass soils on the coast of North Sulawesi, Indonesia. We found that seagrass meadows adjacent to mangr...

Journal: :PloS one 2016
Ding Wen Nianpeng He Jinjing Zhang

Grazing exclusion (GE) has been deemed as an important approach to enhance the soil carbon storage of semiarid grasslands in China; however, it remains unclear how different organic carbon (OC) components in soils vary with the duration of GE. Here, we observed the changing trends of different OC components in soils with increased GE duration in five grassland succession series plots, ranging f...

2012
Jill L. Edmondson Zoe G. Davies Nicola McHugh Kevin J. Gaston Jonathan R. Leake

Urbanization is widely presumed to degrade ecosystem services, but empirical evidence is now challenging these assumptions. We report the first city-wide organic carbon (OC) budget for vegetation and soils, including under impervious surfaces. Urban soil OC storage was significantly greater than in regional agricultural land at equivalent soil depths, however there was no significant difference...

Journal: :تحقیقات آب و خاک ایران 0
ابراهیم مقیسه دانشجوی دکتری، دانشگاه تهران و بورسیه پژوهشگاه علوم و فنون هسته ای احمد حیدری استادیار، دانشگاه تهران محمد قنادی مراغه استاد، پژوهشگاه علوم و فنون هسته ای حسن توفیقی دانشیار، دانشگاه تهران فریدون سرمدیان دانشیار، دانشگاه تهران مصطفی کریمیان اقبال دانشیار، دانشگاه تربیت مدرس

an important part of carbon cycling is carried out in the soil making land use changes, including changes in forestlands, affect soc storage and consequently co2 flux into the atmosphere.the aims followed in this investigation were to study the impacts of conversion of deciduous forests to coniferous ones and deforested land to rangelands, on some of the soil physicochemical properties, organic...

2016
X. M. Yang C. F. Drury W. D. Reynolds J. Y. Yang

We test the common assumption that organic carbon (OC) storage occurs on sand-sized soil particles only after the OC storage capacity on silt- and clay-sized particles is saturated. Soil samples from a Brookston clay loam in Southwestern Ontario were analysed for the OC concentrations in bulk soil, and on the clay (<2 μm), silt (2-53 μm) and sand (53-2000 μm) particle size fractions. The OC con...

2017
Daniel S Collins Alexandros Avdis Peter A Allison Howard D Johnson Jon Hill Matthew D Piggott Meor H Amir Hassan Abdul Razak Damit

Modern mangroves are among the most carbon-rich biomes on Earth, but their long-term (≥106 years) impact on the global carbon cycle is unknown. The extent, productivity and preservation of mangroves are controlled by the interplay of tectonics, global sea level and sedimentation, including tide, wave and fluvial processes. The impact of these processes on mangrove-bearing successions in the Oli...

Journal: :Global change biology 2015
Martin Wiesmeier Sam Munro Frauke Barthold Markus Steffens Peter Schad Ingrid Kögel-Knabner

Organic carbon (OC) sequestration in degraded semi-arid environments by improved soil management is assumed to contribute substantially to climate change mitigation. However, information about the soil organic carbon (SOC) sequestration potential in steppe soils and their current saturation status remains unknown. In this study, we estimated the OC storage capacity of semi-arid grassland soils ...

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