نتایج جستجو برای: soil organic carbon

تعداد نتایج: 600682  

2014
L. Gianfreda P. Burgos E. Madejón F. Cabrera

A 3-year field experiment on a sandy soi] supporting a strawberry crop was carried out to study the effects of the application of three organic residues (AC, olive mill wastewater sludge compos!; MWC, municipal solid waste compost; and PW, paper mill waste) on organic matler content, enzymatic activities, and available heavy metals. Significant increases in organic carbon content (total organic...

2006
X. Liu X. Zhang G. Ding

Soil organic carbon (SOC) is the most often reported attribute and is chosen as the most important indicator of soil quality and agricultural sustainability. In this review, we summarized how cultivation, crop rotation, residue and tillage management, fertilization and monoculture affect soil quality, soil organic matter (SOM) and carbon transformation. The results confirm that SOM is not only ...

Journal: :تحقیقات آب و خاک ایران 0
مریم اوسط کارشناس ارشد، دانشکده مهندسی و فناوری کشاورزی احمد حیدری استادیار، دانشکده مهندسی و فناوری کشاورزی فریدون سرمدیان دانشیار، دانشکده مهندسی و فناوری کشاورزی

balance among different fractions of a carbon sources is of paramount importance in maintenance of very important in soil quality and environmental health. on the other hand, rapid growth of world population, degradation of agricultural soils, along with release of greenhouse gasses are some of the main challenges of the 21st century. the aim of this study was to investigate the extent of chang...

Journal: :مدیریت خاک و تولید پایدار 0
رضا کریمی دانشگاه شهرکرد محمدحسن صالحی دانشگاه شهرکرد زهره مصلح دانشگاه شهرکرد

this study was conducted to investigate the impact of land use change on some of carbon components in safashahr area, fars province. four land uses (destroyed rangeland, agricultural land, new and old apple orchard) were selected. sampling was done randomly from two depths (0-20 and 20-50 cm) of each land use. particulate organic matter (pom) and extractable carbohydrate by hot water were measu...

Journal: :journal of rangeland science 2016
hossein tavakoli

climate change due to increasing the level of greenhouse gases including co2 is the main environmental issue of the world in the new century. one of the effective way for reducing atmospheric co2 is carbon sequestration by plants and soils. a vast area of iran has desert condition with special adapted plant species in which can be devoted for carbon sequestration. hammada salicornica as a shrub...

2015
J. A. M. MOORE J. JIANG W. M. POST A. T. CLASSEN

Carbon cycle models often lack explicit belowground organism activity, yet belowground organisms regulate carbon storage and release in soil. Ectomycorrhizal fungi are important players in the carbon cycle because they are a conduit into soil for carbon assimilated by the plant. It is hypothesized that ectomycorrhizal fungi can also be active decomposers when plant carbon allocation to fungi is...

2017
Inés E. García de Salamone

The productive capacity of soils is directly associated with their organic matter content which is the main reservoir of organic carbon and main source of nutrients for plants (Grandy et al., 2006; Studdert et al. 1997; Sisti et al., 2004; Urquiaga et al., 2004). A sustained increase in the concentration of organic carbon is needed to establish a land management system where the degradation of ...

The aim of this study was to produce mulch by combining natural mineral and organic substances in order to reach soil stabilization and improve soil physical and mechanical properties in Koopal area. The effects of organic mulch (at 3 levels of O1: combination of 1% sugarcane bagasse biochar+0.5% gum Arabic+0.5% gelatin; O2: combination of 3% sugarcane bagasse biochar+1% gum Arabic+1% gelatin; ...

2015
Huimin Xiang Lingling Zhang Dazhi Wen Eric J. Jokela

In order to evaluate the dynamics of carbon storage during forest succession and explore the significance of water relations and soil stability in forest environments, a study was conducted in 2011. This study investigated the dynamics of soil organic carbon (SOC) fractions and its protection through aggregation along the successional forests. An experiment in South China examined pine forest (...

Journal: :Journal of environmental quality 2001
B U Ugwuegbu S O Prasher D Ahmad P Dutilleul

The prospect of using wastewater containing high loads of soluble organic matter (OM) for removing residual agricultural chemicals (fertilizer, pesticide, or herbicide) in farm soil, although promising, could have adverse effects on soil agricultural quality as a result of development of redoximorphic features in the soil profile. In this study, the effect of organic carbon supplement for biore...

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