Andreas Wilkes
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View article: Uncertainty Analysis Supports Prioritization of Greenhouse Gas Inventory Improvement in Indonesia’s Livestock Sector
Uncertainty Analysis Supports Prioritization of Greenhouse Gas Inventory Improvement in Indonesia’s Livestock Sector Open
Accurate estimation of greenhouse gas (GHG) emissions from the livestock sector is essential for informing climate policies and fulfilling international reporting obligations. However, uncertainties in emission factors and activity data ca…
View article: Enteric Methane Emission Estimates for Cattle in Zambia from 1994 to 2022 Using the IPCC Tier 2 Approach
Enteric Methane Emission Estimates for Cattle in Zambia from 1994 to 2022 Using the IPCC Tier 2 Approach Open
Agriculture is a significant contributor to greenhouse gas (GHG) emissions, with enteric methane (EntCH4) from cattle production being a major source. In Zambia, cattle play a critical role in rural livelihoods and food security, yet the c…
View article: Enteric Methane Emission Estimates for Cattle in Zambia from 1994-2022 Using the IPCC Tier 2 Approach
Enteric Methane Emission Estimates for Cattle in Zambia from 1994-2022 Using the IPCC Tier 2 Approach Open
Agriculture is a significant contributor to greenhouse gas (GHG) emissions, with enteric methane (EntCH4) from cattle production being a major source. In Zambia, cattle play a critical role in rural livelihoods and food security, yet the c…
View article: Sustainable Restoration of Typical Degraded Grasslands: An Evaluation of Ecological Benefits from Bio-Organic Fertilizer Applications
Sustainable Restoration of Typical Degraded Grasslands: An Evaluation of Ecological Benefits from Bio-Organic Fertilizer Applications Open
To investigate the effects of restoration measures on degraded grasslands in the typical steppe of Inner Mongolia, two restoration treatments—enclosure (EN) and enclosure with additional bio-organic fertilizer application (EF)—were establi…
View article: Community-based breeding programs and animal health interventions in the extensive production system of Ethiopia: a political economy and stakeholder analysis
Community-based breeding programs and animal health interventions in the extensive production system of Ethiopia: a political economy and stakeholder analysis Open
The aim of this study was to identify potential institutions, their contributions, and linkages among them for the successful implementation of Community-Based Breeding Programs (CBBP) and Animal Health Interventions (AHI) in Ethiopia. Sta…
View article: Marginal abatement cost curves of climate-smart agricultural practices to mitigate greenhouse gas emissions from smallholder dairy farms in Kenya
Marginal abatement cost curves of climate-smart agricultural practices to mitigate greenhouse gas emissions from smallholder dairy farms in Kenya Open
View article: Environmental and food security implications of livestock abortions and calf mortality: a case study in Kenya and Tanzania
Environmental and food security implications of livestock abortions and calf mortality: a case study in Kenya and Tanzania Open
This study investigates the environmental and food security implications of livestock abortions and calf mortality in Tanzanian dairy systems and Kenyan beef systems by utilizing data from previously published studies. The environmental im…
View article: Comparison of Tier 1 and 2 methodologies for estimating intake and enteric methane emission factors from smallholder cattle systems in Africa: a case study from Ethiopia
Comparison of Tier 1 and 2 methodologies for estimating intake and enteric methane emission factors from smallholder cattle systems in Africa: a case study from Ethiopia Open
Considering the potential environmental impact of livestock production and the significance of accurate estimation methods, it is crucial to assess the differences between various methodologies. The study compared the gross energy intake (…
View article: Litter accumulation suppresses grass production but facilitates shrub expansion in a long‐term fenced grassland
Litter accumulation suppresses grass production but facilitates shrub expansion in a long‐term fenced grassland Open
Shrub expansion is increasing in grasslands worldwide and has profound effects on biodiversity and ecosystem functions. Shrub expansion has primarily been explained by extrinsic factors such as climate change and human activities, yet the …
View article: Comparative Analysis of Tier 1 and 2 Methodologies for Estimating Enteric Methane Emission Factors from Sheep in Smallholder Systems in Africa: A Case Study from Ethiopia
Comparative Analysis of Tier 1 and 2 Methodologies for Estimating Enteric Methane Emission Factors from Sheep in Smallholder Systems in Africa: A Case Study from Ethiopia Open
View article: Marginal abatement cost curves of climate-smart agricultural practices to mitigate greenhouse gas emissions from smallholder dairy farms in Kenya
Marginal abatement cost curves of climate-smart agricultural practices to mitigate greenhouse gas emissions from smallholder dairy farms in Kenya Open
While livestock play a vital role in supporting livelihoods of many people in Africa, they are also a major source of greenhouse gas emissions (GHG). An increasing population coupled with growing demand for livestock products means that th…
View article: Optimization of Extraction Process and Dynamic Changes in Triterpenoids of Lactuca indica from Different Medicinal Parts and Growth Periods
Optimization of Extraction Process and Dynamic Changes in Triterpenoids of Lactuca indica from Different Medicinal Parts and Growth Periods Open
In this study, the triterpenoids in the leaves of Lactuca indica L.cv. Mengzao (LIM) were extracted via microwave-assisted ethanol extraction, and the optimum extraction conditions for triterpenoids were determined through single-factor ex…
View article: The contribution of livestock to climate change mitigation: a perspective from a low-income country
The contribution of livestock to climate change mitigation: a perspective from a low-income country Open
The livestock sector in low- and middle-income countries could contribute significantly to reduce the rate of growth and/or the level of greenhouse gas (GHG) emissions required to achieve the 1.5 °C target of the Paris Agreement. Yet, the …
View article: Grazing effects on total carbon and nitrogen content of wind-eroded soils in desert steppe
Grazing effects on total carbon and nitrogen content of wind-eroded soils in desert steppe Open
A high stocking rate can intensify wind erosion in grasslands, and strong wind can carry away soil surface particles and their nutrients, which leads to soil barrenness. In this research, the dust flux, total carbon (TC) and total nitrogen…
View article: Accuracy of enteric methane emission models for cattle in sub-Saharan Africa: status quo and the way forward
Accuracy of enteric methane emission models for cattle in sub-Saharan Africa: status quo and the way forward Open
Cattle emit over 65% of enteric methane (CH4) in sub-Saharan Africa (SSA), making them the focus of many mitigation strategies targeting livestock emissions. Since measured feed intake data are sparse, emission factors for enteric CH4 (EFC…
View article: Research Progress on Greenhouse Gas Emissions From Livestock in Sub-Saharan Africa Falls Short of National Inventory Ambitions
Research Progress on Greenhouse Gas Emissions From Livestock in Sub-Saharan Africa Falls Short of National Inventory Ambitions Open
Livestock are an important source of livelihoods in agricultural systems in sub-Saharan Africa (SSA), while also being the largest source of national greenhouse gas (GHG) emissions in most African countries. As a consequence, there is a cr…
View article: Toward a sustainable grassland ecosystem worldwide
Toward a sustainable grassland ecosystem worldwide Open
Globally, grasslands, covering about 40% of the Earth's land area, are vital for supporting important ecosystem functions, services, and livelihoods of millions of humans. Currently, grassland degradation is a major threat to the maintenan…
View article: Precipitation and soil microbial community influence plant response to warming and N addition in a desert steppe
Precipitation and soil microbial community influence plant response to warming and N addition in a desert steppe Open
Aims Global environmental changes are known to affect terrestrial ecosystems. However, how plants and soil microorganisms respond to warming and nitrogen deposition in a desert steppe with strong seasonal drought remains largely unexplored…
View article: Limitations of using simple indicators for evaluating agricultural emission reductions at farm level — evidence from Kenyan smallholder dairy production
Limitations of using simple indicators for evaluating agricultural emission reductions at farm level — evidence from Kenyan smallholder dairy production Open
National-scale carbon footprints of livestock production are commonly computed from a set of production system characteristics that serve as inputs for greenhouse gas (GHG) emission models. We evaluated the feasibility of using such equati…
View article: Financing climate change mitigation in agriculture: assessment of investment cases
Financing climate change mitigation in agriculture: assessment of investment cases Open
More than one-quarter of the world’s greenhouse gas emissions come from agriculture, forestry, and land-use change. As with other sectors of the economy, agriculture should also contribute to meeting countries’ emission reduction targets. …
View article: Making trees count: Measurement and reporting of agroforestry under the UNFCCC
Making trees count: Measurement and reporting of agroforestry under the UNFCCC Open
This dataset categorizes the ambition and commitments to use agroforestry in the 1st Nationally Determined Contributions (NDCs), National Communications, and other climate policies. The dataset was derived from key word searches and evalua…
View article: Options for improved livestock activity data collection and management to support measurement, reporting and verification (MRV) in Ethiopia
Options for improved livestock activity data collection and management to support measurement, reporting and verification (MRV) in Ethiopia Open
To complement an ongoing CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS) project ‘Enhancing capacities for MRV of sustainable livestock action in East Africa (Kenya and Ethiopia)’, which is implemented by UN…
View article: Piloting innovations for improved data collection and management to support livestock monitoring, reporting, and verification (MRV) of greenhouse gas emissions in Ethiopia
Piloting innovations for improved data collection and management to support livestock monitoring, reporting, and verification (MRV) of greenhouse gas emissions in Ethiopia Open
To complement an ongoing CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS) project ‘Enhancing capacities for MRV of sustainable livestock action in East Africa (Kenya and Ethiopia),’ which is implemented by UN…
View article: Livestock Greenhouse Gas Emissions in Ethiopia by region: a graphic summary
Livestock Greenhouse Gas Emissions in Ethiopia by region: a graphic summary Open
This report is based on the Inventory of GHG emissions from cattle, sheep, and goats in Ethiopia (1994-2018) calculated using the IPCC Tier 2 approach approved by the Ministry of Agriculture (Wilkes et al., 2020). That national inventory r…
View article: Market Costs and Financing Options for Grassland Carbon Sequestration: Empirical and Modelling Evidence From Qinghai, China
Market Costs and Financing Options for Grassland Carbon Sequestration: Empirical and Modelling Evidence From Qinghai, China Open
Asia’s grasslands provide livelihoods for some of the region’s poorest people. Widespread grassland degradation reduces the resilience and returns to herding livelihoods. Reversing degradation and conserving grasslands could not only impro…
View article: A framework for identifying country-specific MRV improvement needs in the livestock sector: Lessons from Kenya, Ethiopia and Nigeria
A framework for identifying country-specific MRV improvement needs in the livestock sector: Lessons from Kenya, Ethiopia and Nigeria Open
The working paper presents a framework for assessing country-specific needs, opportunities and priorities for improving measurement, reporting and verification (MRV) of livestock greenhouse gas (GHG) emissions and emission reductions. The …
View article: Inventory of greenhouse gas emissions from cattle, sheep and goats in Ethiopia (1994-2018) calculated using the IPCC Tier 2 approach
Inventory of greenhouse gas emissions from cattle, sheep and goats in Ethiopia (1994-2018) calculated using the IPCC Tier 2 approach Open
Livestock production is an important source of incomes and livelihoods for the rural population in Ethiopia, and is also an important contributor to greenhouse gas (GHG) emissions. Ethiopia’s GHG profile is dominated by emissions from the …
View article: Mitigation options and finance for transition to low-emissions dairy in Kenya
Mitigation options and finance for transition to low-emissions dairy in Kenya Open
This paper presents potential of low-emission dairy production, investment options, and financial mechanisms in Kenya’s dairy sub-sector to better support its necessary transition and enhance contribution to national greenhouse gas (GHG) e…
View article: The Livestock Sub-sector in Kenya’s NDC: A scoping of gaps and priorities
The Livestock Sub-sector in Kenya’s NDC: A scoping of gaps and priorities Open
Under the Paris Agreement, countries should update their Nationally Determined Contribution (NDC) every five years, with progressive ambition in each new submission. Kenya plans to review and revise its NDC in June 2020. The State Departme…
View article: Reconsidering the efficiency of grazing exclusion using fences on the Tibetan Plateau
Reconsidering the efficiency of grazing exclusion using fences on the Tibetan Plateau Open
Grazing exclusion using fences is a key policy being applied by the Chinese government to rehabilitate degraded grasslands on the Tibetan Plateau (TP) and elsewhere. However, there is a limited understanding of the effects of grazing exclu…