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Post fire ground vegetation development over 25 years
2021
Freimane, L., Latvian State Forest Research Inst. Silava, Salaspils (Latvia);Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia) | Caksa, L., Latvian State Forest Research Inst. Silava, Salaspils (Latvia);Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia) | Karklina, A., Latvian State Forest Research Inst. Silava, Salaspils (Latvia) | Elferts, D., Latvian State Forest Research Inst. Silava, Salaspils (Latvia);University of Latvia, Riga (Latvia) | Berzina, B., University of Latvia, Riga (Latvia)
Fire has been a part of natural disturbance regime in boreal and to some extent also hemiboreal forests, affecting soil and light conditions, seedbanks, trees and ground vegetation. The most significant factors affecting occurrence, severity and size of forest fires are anthropogenic, weather and the environment, all of which are changing due to human-caused climate change. This paper discusses medium term (25 years) vegetation development in five different biotopes after fire disturbance. Sample plots were established in Slitere Reserve (now National park) in north-western Latvia on areas affected by large fire in 1992. Data were collected in 1993, 2002 and 2017. The aim of the study was to characterize the regeneration and succession of ground vegetation after the fire. In 1993, species such as bog-rosemary (C) were observed in the ground vegetation a year after the fire. In 2002 liverworts appeared, indicating that the bog has acquired more stable and wetter conditions, but in 2017, liverwort mosses were no longer present and the percentage cover of Rubus chamaemorus decreased significantly and Calluna vulgaris, sphagnum sp., and Betula pendula were present in large quantities in the bog. Comparing these studied years, it can be concluded that all these years the biotopes and species have continuously developed and are regenerating.
Show more [+] Less [-]Soil carbon stock in fertilized forest stands with mineral soils
2021
Karklina, I., Latvian State Forest Research Inst. Silava, Salaspils (Latvia);University of Latvia, Riga (Latvia) | Lazdins, A., Latvian State Forest Research Inst. Silava, Salaspils (Latvia) | Butlers, A., Latvian State Forest Research Inst. Silava, Salaspils (Latvia) | Stola, J., Latvian State Forest Research Inst. Silava, Salaspils (Latvia);University of Latvia, Riga (Latvia) | Zvaigzne, Z.A., Latvian State Forest Research Inst. Silava, Salaspils (Latvia) | Purvina, D., Latvian State Forest Research Inst. Silava, Salaspils (Latvia)
Forest mineral soil is one of the terrestrial carbon pools, and changes in forest management practices can affect the carbon stock in forest soil. The purpose of the study is to estimate temporal fertilization impact on mineral soil organic carbon stock, depending on fertilizers applied, forest stand type, different dominant tree species of the stands. Coniferous and birch forest stands with mineral soil in the central and eastern part of Latvia were selected for the experiment. The fertilizers used were wood ash and nitrogen containing mineral fertilizer. No significant differences in organic carbon stock in O horizon were detected 2–5 years after fertilization. A tendency of smaller organic carbon stock in upper mineral soil layers (0–10 cm, 10–20 cm) was found in most part of objects. Significantly smaller organic carbon stock was found in upper mineral soil layers (0–10 cm and 10–20 cm) in birch stands with wet mineral soil treated with ammonium nitrate if compared to the control plots, possibly due to a different soil moisture regime of forest stands. The positive and significant correlations between soil organic carbon and nitrogen stocks were found in most part of the objects.
Show more [+] Less [-]The International Fund for Agricultural Development's 2021 Rural Development Report cites A4NH evidence in its analysis of opportunities for transforming food systems
2021
CGIAR Research Program on Agriculture for Nutrition and Health
The 2021 report draws on research funded by A4NH on food system transformation and promising consumer- and food-environment- oriented policy options to include in the food systems transformation agenda in low- and middle income countries. It provides analysis to inform policies, programs and investments to promote inclusive food system transformation.
Show more [+] Less [-]Workshop: Priority Setting for Nationally Determined Contributions (NDC) - Implementation Plan in Rice Production
2021
International Rice Research Institute
26 March 2021, Ha Noi, Vietnam — the Ministry of Agriculture and Rural Development (MARD) held the first workshop in support of planning the implementation of Vietnam's Nationally Determined Contribution (NDC) in the rice sector. Aiming at setting priorities for NDC implementation in rice production, the workshop highlighted different NDC scenarios to reduce greenhouse gas (GHG) emissions while gaining economic, social, and environmental benefits sustainably.
Show more [+] Less [-]Transformation of the rural economy
2021
Otsuka, Keijiro | Zhang, Xiaobo
The chapter examines whether contract farming confers benefits primarily to large farmers in practice and how we may be able to make smallholders significantly better off by introducing new profitable crops and livestock products. More often than not, agriculture does not provide ample employment opportunities, largely due to land constraints on production expansion. One solution is to develop nonfarm sectors so as to provide more lucrative employment opportunities, in which working members of farm households increasingly find jobs. The chapter demonstrates the critical importance of increasing nonfarm income to improve the income of rural households and examines the roles of infrastructure and human capital in raising nonfarm income.
Show more [+] Less [-]The Ministry of Agriculture and Rural Development incorporated more A4NH evidence in implementation of nutrition-sensitive agriculture approaches in Viet Nam as part of their National Action Plan for Zero Hunger
2021
CGIAR Research Program on Agriculture for Nutrition and Health
In 2021, the Ministry of Agriculture and Rural Development started implementing A4NH-informed nutrition-sensitive agriculture approaches in 11 provinces as part of their Zero Hunger initiative.
Show more [+] Less [-]The Ministry of Agriculture and Rural Development incorporated A4NH evidence in implementation of nutrition-sensitive agriculture approaches in Viet Nam as part of their National Action Plan for Zero Hunger
2021
CGIAR Research Program on Agriculture for Nutrition and Health
The Ministry of Agriculture and Rural Development (MARD) implemented A4NH-informed nutrition-sensitive agriculture approaches in 11 provinces in Viet Nam as part of their Zero Hunger initiative. The food systems framework, developed by A4NH researchers, was included in the training materials for provincial staff. In addition, A4NH-informed training materials were approved by MARD as key resources for implementation. These contributions were possible because the A4NH Country Coordinator is an invited member of the Zero Hunger technical group and approval committees.
Show more [+] Less [-]Rethinking agrifood systems for the post-COVID world
2021
Fan, Shenggen; Chen, Kevin Z.; Si, Wei; Swinnen, Johan | http://orcid.org/0000-0002-2658-4863 Fan, Shenggen; http://orcid.org/0000-0001-7927-4132 Chen, Kevin; https://orcid.org/0000-0002-8650-1978 Swinnen, Johan
The outbreak of the COVID-19 pandemic in early 2020 has caused a global public health crisis. It has also severely damaged the world’s agrifood systems. Before the pandemic, agrifood systems were already vulnerable to many threats, including climate change, frequent extreme weather events, degradation of natural resources, economic slowdown, and regional conflicts (Fan, Wei, and Zhang 2020; Chen et al. 2020). The number of undernourished people worldwide had been increasing for five consecutive years to 690 million in 2019. More than 135 million people in 55 countries and territories were facing acute hunger, 144 million children younger than five were stunted, and 47 million children were wasted (FSIN 2020; FAO et al. 2020). The pandemic has increased poverty for the first time in 22 years—about 100 million more people have fallen into extreme poverty (FAO 2021b). Moreover, an additional 130 million people are threatened by acute severe food insecurity during the pandemic (WFP 2020a). A recent study has shown that the total number of children affected by stunting could increase by 2.8 million because of the pandemic (World Bank 2021). At the same time, the number of children experiencing wasting could increase by 6.7 million (UNICEF 2020; WFP 2020b). The livelihoods of vulnerable groups such as smallholder farmers, women, and migrant workers are threatened as they face losing jobs and incomes (FAO 2021b). Without effective measures, 840 million people in the world could face undernourishment and suffer from hunger by 2030, far from the “zero hunger” of the UN Sustainable Development Goals (IFPRI 2021b). As vaccines are gradually deployed globally, the pandemic is expected to be under control to some extent by the end of 2021. But we should not simply recover from the crisis; it is time to rethink how to build back better to achieve green, low-carbon, healthier, inclusive, and more resilient food systems. | Non-PR | IFPRI4; 3 Building Inclusive and Efficient Markets, Trade Systems, and Food Industry; DCA | DSGD
Show more [+] Less [-]Shifting Chinese diets for a win-win of health and the environment
2021
Sheng, Fangfang; Gao, Haixiu; Fan, Shenggen; Chen, Kevin Z.; Zhang, Yumei; Zhu, Chen; Zhao, Qiran | http://orcid.org/0000-0001-7927-4132 Chen, Kevin; http://orcid.org/0000-0002-2658-4863 Fan, Shenggen
With rapid improvements in agricultural productivity and residents’ income, China has made remarkable advances in reducing hunger and malnutrition, as well as quality improvements in residents’ diets, witnessed by the progressively increasing consumption of fruits, eggs, aquatic products, and milk. However, new health and environmental challenges also arise alongside China’s dietary transition. Specifically, overweight and obesity have become increasingly prominent, and the incidence of diet-related chronic diseases has been on the rise. Among all these trends, the significant increase in meat consumption not only led to nutrition and health challenges, but also imposed intense pressure on resources and the environment. There are significant gaps between the current diet of Chinese residents and the recommended diets of the Chinese Dietary Guidelines and the EATLancet Commission. The current Chinese diet is mainly composed of grains, dominated by refined rice and noodles, insufficient coarse food grains, excessive meat, and insufficient consumption of whole grains, fruits, legumes, and milk. Incidence and mortality from diet-related chronic diseases in China would be significantly reduced if the “healthy diet” recommendations of the Chinese Dietary Guidelines, EAT-Lancet, Mediterranean and flexitarian (or low meat) diets were adopted. Deaths in China would be reduced by 1.15 million by 2030 if the population were following the Chinese Dietary Guidelines, or 1.8 million by shifting to the EAT-Lancet diet. At the same time, such a shift would significantly lower greenhouse gas emissions. Simulation results show that greenhouse gas emissions from agricultural activities would be reduced by 146-202 million metric tons if residents adopted one of the healthy diets, and by 60-116 million metric tons compared with food consumption at the 2020 level. The flexitarian diet would reduce greenhouse gas emissions the most. | Non-PR | IFPRI4; 3 Building Inclusive and Efficient Markets, Trade Systems, and Food Industry; DCA | DSGD
Show more [+] Less [-]Transforming agrifood systems to achieve China’s 2060 carbon neutrality goal
2021
Zhang, Yumei; Fan, Shenggen; Chen, Kevin Z.; Feng, Xiaolong; Zhang, Xiangyang; Bai, Zhaohai; Wang, Xiaoxi | http://orcid.org/0000-0001-7927-4132 Chen, Kevin; http://orcid.org/0000-0002-2658-4863 Fan, Shenggen
During recent decades, agriculture has developed rapidly in China, ensuring food security and enriching residents’ diets. At the same time, greenhouse gas (GHG) emissions from the country’s agrifood systems have increased by only 16 percent in the past two decades and fell for two consecutive years in 2017 and 2018. The proportion of GHG emissions in the country’s food systems to the total GHG emissions dropped from 18.7 percent in 1997 to 8.2 percent in 2018. GHG emissions from the Chinese agrifood systems should not be ignored, neverthless. In 2018, GHG emissions from agrifood systems was still as high as 1.09 billion tons CO2eq1. While ensuring food security as the national top priority, measures such as improving agricultural technologies, reducing food loss and waste, and shifting dietary patterns must be adopted to reduce GHG emissions from agrifood systems. Improvements in agricultural technologies are the most effective standalone measures, but the combined three measures above have the most significant effect on GHG emission reduction. Projections show that the combined three measures can redcue GHG emissions by 47 percent in 2060 from the 2020 level. Land use, land use change, and forestry (LULUCF) play a key role as a carbon sink. The carbon sequestration from LULUCF was around 1.1 billion tons CO2eq in 2014. It can increase to 1.6 billion tons of CO2eq per year in 2060, thus LULUCF could completely offset GHG emissions from agrifood systems and still have a surplus capacity to sequester nearly 1 billion additional tons of CO2eq per year, well above the current level of net sequestration,contributing to overall carbon neutrality of China. | Non-PR | IFPRI4; 3 Building Inclusive and Efficient Markets, Trade Systems, and Food Industry; DCA | DSGD
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