نتایج جستجو برای: parameters soil storage

تعداد نتایج: 915704  

2002
Matthias C. Rillig Sara F. Wright Christopher B. Field

Despite the importance of arbuscular mycorrhizae to the functioning of terrestrial ecosystems (e.g. nutrient uptake, soil aggregation), and the increasing evidence of global warming, responses of arbuscular mycorrhizal fungi (AMF) to climate warming are poorly understood. In a field experiment using infrared heaters, we found effects of warming on AMF after one growing season in an annual grass...

Journal: :Scientific reports 2016
Xiaolin Dou Ping He Ping Zhu Wei Zhou

Effects of different fertilizers on organic carbon (C) storage and turnover of soil fractions remains unclear. We combined soil fractionation with isotope analyses to examine soil organic carbon (SOC) dynamics after 25 years of fertilization. Five types of soil samples including the initial level (CK) and four fertilization treatments (inorganic nitrogen fertilizer, N; balanced inorganic fertil...

2014
Zhimin Du Yan Xie Liqun Hu Longxing Hu Shendong Xu Daoxin Li Gongfang Wang Jinmin Fu

Grassland managements can affect carbon (C) and nitrogen (N) storage in grassland ecosystems with consequent feedbacks to climate change. We investigated the impacts of compound fertilization and clipping on grass biomass, plant and soil (0-20 cm depth) C, N storage, plant and soil C: N ratios, soil microbial activity and diversity, and C, N sequestration rates in grassland in situ in the Natio...

2015
D. H. Mao Z. M. Wang L. Li Z. H. Miao W. H. Ma C. C. Song C. Y. Ren M. M. Jia

The accurate estimation of soil organic carbon (SOC) storage and determination of its pattern-controlling factors is critical to understanding the ecosystem carbon cycle and ensuring ecological security. The Sanjiang Plain, an important grain production base in China, is typical of ecosystems, yet its SOC storage and pattern has not been fully investigated because of insufficient soil investiga...

2012
Yan JIAO Zhu XU JiaoHong ZHAO WenZhu YANG

Land use change significantly influences soil properties. There is little information available on the long-term effects of post-reclamation from grassland to cropland on soil properties. We compared soil carbon (C) and nitrogen (N) storage and related soil properties in a 50-year cultivation chronosequence of grassland in the agro-pastoral ecotone of Inner Mongolia. Field surveys on land use c...

2003
Haibin Wu Zhengtang Guo Changhui Peng

[1] Surface soils hold the largest terrestrial organic carbon pool, although estimates of the world’s soil organic carbon storage remain controversial, largely due to spatial data gaps or insufficient data density. In this study, spatial distribution and storage of soil organic carbon in China are estimated using the published data from 34,411 soil profiles investigated during China’s second na...

Journal: :desert 2011
kh mahdavi a. sanadgol h. azarnivand s. babaei kafaki m. jafari

increasing level of carbon dioxide co2 due to industrial activity is primarily cause of global warming. planting artoplex lentiformis can help to reduce atmospheric co2 buildup partly replacing use of fuels and by carbon storage. the objective of this study was to determine the effects of row spacing on carbon storage. a split- plot design with three replications included three row spacing (2×2...

2011
A. B. Smith

Accurate prediction of soil moisture in a land surface model (LSM) is critical in improving land surface and atmosphere interactions in the atmospheric general circulation models used in numerical weather prediction and global climate models. Gravity is a relatively new source of remotely sensed data, available since the launch of the twin Gravity Recovery And Climate Experiment (GRACE) satelli...

2014
Amanda G. DelVecchia John F. Bruno Larry Benninger Marc Alperin Ovik Banerjee Juan de Dios Morales

Mangroves can capture and store organic carbon and their protection and therefore their restoration is a component of climate change mitigation. However, there are few empirical measurements of long-term carbon storage in mangroves or of how storage varies across environmental gradients. The context dependency of this process combined with geographically limited field sampling has made it diffi...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Jerry M Melillo Sarah Butler Jennifer Johnson Jacqueline Mohan Paul Steudler Heidi Lux Elizabeth Burrows Francis Bowles Rose Smith Lindsay Scott Chelsea Vario Troy Hill Andrew Burton Yu-Mei Zhou Jim Tang

Soil warming has the potential to alter both soil and plant processes that affect carbon storage in forest ecosystems. We have quantified these effects in a large, long-term (7-y) soil-warming study in a deciduous forest in New England. Soil warming has resulted in carbon losses from the soil and stimulated carbon gains in the woody tissue of trees. The warming-enhanced decay of soil organic ma...

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