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SOIL CARBON CHECK: A TOOL FOR MONITORING AND GUIDING SOIL CARBON SEQUESTRATION IN FARMER FIELDS

《农业科学与工程前沿(英文)》 2023年 第10卷 第2期   页码 248-261 doi: 10.15302/J-FASE-2023499

摘要:

● Establishment of a rapid tool for monitoring soil carbon sequestration in farmer fields.

关键词: 4 per 1000 initiative     carbon sequestration     climate action     farmer fields     SDG13     soil organic carbon     soil testing    

SOIL ORGANIC CARBON SEQUESTRATION MATTERS BUT IS NO PANACEA FOR CARBON-NEUTRAL AGRICULTURE

《农业科学与工程前沿(英文)》 2023年 第10卷 第2期   页码 281-284 doi: 10.15302/J-FASE-2022470

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Managing soil quality for humanity and the planet

Rattan LAL

《农业科学与工程前沿(英文)》 2020年 第7卷 第3期   页码 251-253 doi: 10.15302/J-FASE-2020329

摘要:

Rather than a human-centric, the basic strategy of achieving Sustainable Development Goals must be focused on restoring and sustaining planetary processes. The urgency of meeting the demands of the humanity must be reconciled with the necessity of enhancing the environment. Increasing and restoring soil organic matter content of the degraded and depleted soils is critical to strengthening planetary processes.

关键词: soil quality     humanity     planet     climate change     soil carbon sequestration     food and nutritional security    

我国草地的固碳功能

高树琴,赵霞,方精云

《中国工程科学》 2016年 第18卷 第1期   页码 73-79 doi: 10.15302/J-SSCAE-2016.01.010

摘要:

本文通过综述当前我国草地碳库的研究成果,并利用1982—2011年的遥感影像,估算出我国草地生态系统碳库约为31.2 PgC,其中96 %储存于土壤中。由于我国草地类型多样,分布地域广阔,造成草地植被碳密度分布的空间异质性很高。内蒙古是草地植被碳库最大的省份,其次是西藏和青海,六大牧区的植被碳库占全国草地植被碳库总量的71 %。然而,我国90 %的天然草地发生不同程度的退化,采取有效的人工管理措施和实施重大的生态建设工程,均对草地碳库的恢复具有明显的作用,说明我国草地有很大的碳汇潜力。

关键词: 草地     植被碳储量     土壤碳储量     草地退化     固碳潜力    

MICROBIAL NECROMASS WITHIN AGGREGATES STABILIZES PHYSICALLY-PROTECTED C RESPONSE TO CROPLAND MANAGEMENT

《农业科学与工程前沿(英文)》 2023年 第10卷 第2期   页码 198-209 doi: 10.15302/J-FASE-2023498

摘要:

● The contribution of fungal necromass C to SOC increased with aggregate sizes.

关键词: cropland management     microbial necromass     soil aggregates     soil carbon sequestration     soil organic matter    

Cattle manure biochar and earthworm interactively affected CO and NO emissions in agricultural and forest soils: Observation of a distinct difference

《环境科学与工程前沿(英文)》 2022年 第16卷 第3期 doi: 10.1007/s11783-021-1473-8

摘要:

• Earthworms increase CO2 and N2O emissions in agricultural and forest soil.

关键词: Carbon sequestration     Forest soil     Cattle manure biochar     Greenhouse gas emissions     Soil fauna    

ECOLOGICAL EFFECTS OF NITROGEN DEPOSITION ON URBAN FORESTS: AN OVERVIEW

《农业科学与工程前沿(英文)》 2022年 第9卷 第3期   页码 445-456 doi: 10.15302/J-FASE-2021429

摘要:

● Patterns and effects of N deposition on urban forests are reviewed.

关键词: biodiversity     carbon sequestration     nitrogen deposition     nutrient imbalance     soil acidification     urban forest    

Carbon dioxide sequestration in petrochemical industries with the aim of reduction in greenhouse gas

Maryam Takht Ravanchi, Saeed Sahebdelfar, Farnaz Tahriri Zangeneh

《化学科学与工程前沿(英文)》 2011年 第5卷 第2期   页码 173-178 doi: 10.1007/s11705-010-0562-1

摘要: The mitigation of greenhouse gas emissions to acceptable levels is arguably the greatest environmental challenge these days. Vast utilization of fossil fuels and forest destruction are main causes of CO increase in the atmosphere. Carbon dioxide sequestration that consists of separation, transportation and utilization or storage of CO , is one way for reduction of its emission, in which the most costly section is separation. Different methods can be used for carbon dioxide separation such as absorption, membrane separation, adsorption and cryogenic distillation. Economic, technical and environmental issues should be considered in selection of the technology for particular application. Carbon dioxide concentration, temperature, pressure and flow rate are influential operating parameters in the selection of the appropriate separation method. Nowadays, absorption is the worldwide industrial separation method. New researches are focused on developing new stable solvents and efficient column configuration with suitable internals to minimize pressure drop. Membrane separation and adsorption (PSA type) are other long-term alternatives that can increase separation efficiency and decrease separation cost. The level of energy consumption in various separation methods are in the order: chemical absorption>physical absorption>membrane separation. Because of high investment costs, current separation technologies are suitable for large concentrated sources. In the present paper, different processes for carbon dioxide separation are investigated and compared. Available technologies and commercial plants for CO sequestration are provided.

关键词: carbon dioxide     greenhouse effect     separation     membrane     absorption     adsorption    

A stepwise process for carbon dioxide sequestration using magnesium silicates

Johan FAGERLUND, Experience NDUAGU, Ron ZEVENHOVEN, Inês ROMÃO,

《化学科学与工程前沿(英文)》 2010年 第4卷 第2期   页码 133-141 doi: 10.1007/s11705-009-0259-5

摘要: This work involves the production of magnesium in the form of Mg(OH) from serpentinite rock (nickel mine tailing) material followed by conversion into MgCO using a pressurised fluidised bed (PFB) reactor operating at 400°C–600°C and pressures up to 2.85MPa. Our approach is rooted in the thermodynamic fact that the reaction between Mg(OH) and gaseous CO forming MgCO and water releases significant amounts of heat. The main problem is, however, the chemical kinetics; the reaction is slow and has to be accelerated in order to be used in an economically viable process for large-scale (~1Mt/a) CO sequestration. We have constructed a lab-scale PFB reactor test-setup for optimising the carbonation reaction. At high enough temperatures and conversion levels the reaction should provide the heat for the proceeding Mg(OH) production step, making the overall process energy neutral. So far we have been able to achieve a conversion degree of 26% at 500°C and 2.85MPa after 30min (particle size 125–212μm). In this paper the test facility and our latest results and progress on CO mineral carbonation are summarised. Also, the possible integration of the iron as a feedstock for iron and steel production will be briefly addressed. An interesting side-effect of this carbon dioxide capture and storage (CCS) route is that significant amounts of iron are obtained from the serpentinite rock material. This is released during the Mg(OH) production and can be of great interest to the iron- and steel producing sector, which at the same time is Finland’s largest CO producer.

关键词: carbonation reaction     reactor     producer     large-scale     process    

从绿色化学的角度提高石油采收率——通过二氧化碳泡沫进行封存 Perspective

Jennifer A. Clark, Erik E. Santiso

《工程(英文)》 2018年 第4卷 第3期   页码 336-342 doi: 10.1016/j.eng.2018.05.006

摘要:

通过二氧化碳(CO2)驱油来提高石油采收率(EOR),这作为一种经济上可行的碳封存方法受到了相当大的关注,并且最近许多研究都集中在开发增强的CO2发泡添加剂上。然而,人们对这些添加剂在泄漏事件中潜在的长期环境影响知之甚少,并且考虑到在典型的CO2 EOR操作中注入添加剂的量,其对环境的影响可能是深远的。本文概述了表面活性剂和表面活性剂/基于纳米颗粒的二氧化碳发泡体系的最新发展情况,重点介绍了CO2泡沫泄漏可能对环境造成的影响。所研究的大多数表面活性剂在油藏条件下不可能降解,并且它们的释放可能对野生动物造成严重的负面影响。随着近来添加剂使用(如非离子表面活性剂、纳米颗粒和其他化学品)的进展,可能不再允许使用苛刻的阴离子表面活性剂。本文讨论了生产泡沫系统的最新进展,并着重介绍了开发环境友好型CO2 EOR方法的可能策略。

关键词: 表面活性剂     纳米粒子     碳封存     提高石油采收率    

Carbon payments in the Guanzhong–Tianshui region to control land degradation

Zixiang ZHOU, Yufeng ZOU

《农业科学与工程前沿(英文)》 2017年 第4卷 第2期   页码 246-253 doi: 10.15302/J-FASE-2017144

摘要: Carbon trading and carbon offset markets are potential policy options for mitigating greenhouse gas emissions and climate change. A price on carbon is expected to generate demand for carbon offsets. In a market-based framework, the carbon price should be high enough to compensate for opportunity costs. We studied a highly-modified agricultural system in the Guanzhong–Tianshui economic region of China that is typical of many temperate agricultural zones in western China. We quantified the economic returns from agriculture and from carbon plantings (both monoculture and ecological plantings) under five carbon-price scenarios. The mean carbon sequestration is 34 Mg·hm ·a , and the average annual payment increased to 1146 CNY·hm at a medium carbon price of 50 CNY·Mg CO . Thus, areas of high priority for conservation and restoration may be restored relatively cheaply in the presence of a carbon market. Overall, however, less carbon is sequestered by ecological plantings (i.e., mixed native trees and shrubs) compared to agriculture.

关键词: carbon-price     carbon sequestration     economic returns     Guanzhong–Tianshui economic region     net present value    

A systemic review of hydrogen supply chain in energy transition

《能源前沿(英文)》 2023年 第17卷 第1期   页码 102-122 doi: 10.1007/s11708-023-0861-0

摘要: Targeting the net-zero emission (NZE) by 2050, the hydrogen industry is drastically developing in recent years. However, the technologies of hydrogen upstream production, midstream transportation and storage, and downstream utilization are facing obstacles. In this paper, the development of hydrogen industry from the production, transportation and storage, and sustainable economic development perspectives were reviewed. The current challenges and future outlooks were summarized consequently. In the upstream, blue hydrogen is dominating the current hydrogen supply, and an implementation of carbon capture and sequestration (CCS) can raise its cost by 30%. To achieve an economic feasibility, green hydrogen needs to reduce its cost by 75% to approximately 2 /kg at the large scale. The research progress in the midterm sector is still in a preliminary stage, where experimental and theoretical investigations need to be conducted in addressing the impact of embrittlement, contamination, and flammability so that they could provide a solid support for material selection and large-scale feasibility studies. In the downstream utilization, blue hydrogen will be used in producing value-added chemicals in the short-term. Over the long-term, green hydrogen will dominate the market owing to its high energy intensity and zero carbon intensity which provides a promising option for energy storage. Technologies in the hydrogen industry require a comprehensive understanding of their economic and environmental benefits over the whole life cycle in supporting operators and policymakers.

关键词: hydrogen production     hydrogen transportation and storage     hydrogen economy     carbon capture and sequestration (CCS)     technology assessment    

Soil health: model programs in the USA

C. Wayne HONEYCUTT, Cristine L.S. MORGAN, Pipa ELIAS, Michael DOANE, John MESKO, Rob MYERS, LaKisha ODOM, Bianca MOEBIUS-CLUNE, Ron NICHOLS

《农业科学与工程前沿(英文)》 2020年 第7卷 第3期   页码 356-361 doi: 10.15302/J-FASE-2020340

摘要:

Population growth, increasing drought, and natural resources degradation are significant global issues. Fortunately, management practices to improve soil health can address many of these issues in ways that are both good for the farmer and the environment. In 2012, the United States Department of Agriculture (USDA) Natural Resources Conservation Service initiated its “Unlock the Secrets in the Soil” campaign to assist farmers and ranchers with adopting soil health systems. Other notable efforts at the federal level include research and education projects by USDA Agricultural Research Service, National Institute of Food and Agriculture, and Sustainable Agriculture Research and Education program. The importance of improving soil health is also recognized far beyond federal government programs. The Soil Health Institute, a nonprofit charity, was established to safeguard and enhance the vitality and productivity of soil through scientific research and adoption. Crop commodity organizations are promoting soil health, such as the Soil Health Partnership. The Nature Conservancy is helping companies and private landowners incorporate soil health into their sustainability efforts. Such efforts are supported by the Foundation for Food and Agriculture Research, as well as by some of the leading global food companies such as General Mills. These are just a few of the many efforts to improve soil health in the USA. The significance of the expanding global population, natural resource challenges, and responsibilities to current and future generations truly make enhancing soil health a global imperative.

关键词: carbon sequestration     climate change     environmental quality     farmer programs     water quality    

Simulation of soil carbon changes due to land use change in urban areas in China

Cui HAO, Jo SMITH, Jiahua ZHANG, Weiqing MENG, Hongyuan LI

《环境科学与工程前沿(英文)》 2013年 第7卷 第2期   页码 255-266 doi: 10.1007/s11783-013-0485-4

摘要: Land use change can have a strong impact on soil carbon dynamics and carbon stocks in urban areas. Due to rapid urbanization, large areas of land have been paved, and other areas have undergone rapid land use change. Evaluation of the impact of urbanization on carbon dynamics and carbon stock (30 cm) has become an issue of urgent concern. The soil carbon dynamics, due to rapid land use change in Tianjin Binhai New Area of China, have been simulated in this paper using the RothC model. Because this area is saline, a modified version of RothC that includes a salt rate modifier provided more accurate simulations than the original model. The conversion to urban green land was not accurately simulated by either of the models because of the undefined changes in soil and plant conditions. According to the model, changes of arable to grassland resulted in a decline in soil carbon stocks, and changes of grassland to forest and grassland to arable resulted in increased soil carbon stocks in this area. Across the whole area simulated, the total carbon stocks in 2010 had decreased due to land use change by 6.5% from the 1979 value. By 2050, a further decrease of 21.9% is expected according to the 2050 plan for land use and the continuing losses from the soils due to previous land use changes.

关键词: land use change     soil carbon     RothC     urban area    

Effects of mulching for water conservation on soil carbon, nitrogen and biological properties

Xiaomin PI, Tongxun ZHANG, Benhua SUN, Quanhong CUI, Yun GUO, Mingxia GAO, Hao FENG, David W. HOPKINS

《农业科学与工程前沿(英文)》 2017年 第4卷 第2期   页码 146-154 doi: 10.15302/J-FASE-2017136

摘要: The effect of mulching with straw, white plastic film and black plastic film for improving soil water storage and on the soil properties was examined in a wheat-maize rotation system on Loess soil in northwestern China. All the mulches improved the water storage to some extent and led to warmer soils. However, the organic C and total N contents of the soils declined significantly under the mulches, particularly the plastic film mulches, and this could have long-term detrimental effects on soil quality and the sustainability of the some mulching practices.

关键词: biomass     carbon     mulch     nitrogen     plastic films     soil     straw     water storage    

标题 作者 时间 类型 操作

SOIL CARBON CHECK: A TOOL FOR MONITORING AND GUIDING SOIL CARBON SEQUESTRATION IN FARMER FIELDS

期刊论文

SOIL ORGANIC CARBON SEQUESTRATION MATTERS BUT IS NO PANACEA FOR CARBON-NEUTRAL AGRICULTURE

期刊论文

Managing soil quality for humanity and the planet

Rattan LAL

期刊论文

我国草地的固碳功能

高树琴,赵霞,方精云

期刊论文

MICROBIAL NECROMASS WITHIN AGGREGATES STABILIZES PHYSICALLY-PROTECTED C RESPONSE TO CROPLAND MANAGEMENT

期刊论文

Cattle manure biochar and earthworm interactively affected CO and NO emissions in agricultural and forest soils: Observation of a distinct difference

期刊论文

ECOLOGICAL EFFECTS OF NITROGEN DEPOSITION ON URBAN FORESTS: AN OVERVIEW

期刊论文

Carbon dioxide sequestration in petrochemical industries with the aim of reduction in greenhouse gas

Maryam Takht Ravanchi, Saeed Sahebdelfar, Farnaz Tahriri Zangeneh

期刊论文

A stepwise process for carbon dioxide sequestration using magnesium silicates

Johan FAGERLUND, Experience NDUAGU, Ron ZEVENHOVEN, Inês ROMÃO,

期刊论文

从绿色化学的角度提高石油采收率——通过二氧化碳泡沫进行封存

Jennifer A. Clark, Erik E. Santiso

期刊论文

Carbon payments in the Guanzhong–Tianshui region to control land degradation

Zixiang ZHOU, Yufeng ZOU

期刊论文

A systemic review of hydrogen supply chain in energy transition

期刊论文

Soil health: model programs in the USA

C. Wayne HONEYCUTT, Cristine L.S. MORGAN, Pipa ELIAS, Michael DOANE, John MESKO, Rob MYERS, LaKisha ODOM, Bianca MOEBIUS-CLUNE, Ron NICHOLS

期刊论文

Simulation of soil carbon changes due to land use change in urban areas in China

Cui HAO, Jo SMITH, Jiahua ZHANG, Weiqing MENG, Hongyuan LI

期刊论文

Effects of mulching for water conservation on soil carbon, nitrogen and biological properties

Xiaomin PI, Tongxun ZHANG, Benhua SUN, Quanhong CUI, Yun GUO, Mingxia GAO, Hao FENG, David W. HOPKINS

期刊论文