Information Analysis

Search Information Analysis

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1244. Impact of Soil Health on Crop Yield and Nitrogen Use Efficiency

More than 120 million tons of nitrogen fertilizer are applied annually to support food production for a world population of 8 billion people, causing serious environmental problems such as deterioration of air and water quality, ecosystem health, and climate stability. Increasing nitrogen use efficiency (NUE) to improve crop yields while simultaneously curbing excess nitrogen in the environment is essential for the sustainability of the planet. A study published in Nature Food integrated high-resolution global data on soil, climate, and field management practices to systematically evaluate the impact of soil health on agricultural productivity and showed that soil health management is important to achieve both food security and environmental sustainability.
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1243. From JIRCAS Southeast Asia Liaison Office #8: What to eat on Thai New Year?

Thai New Year is called "Songkran Festival" and is a national holiday from April 13th to 15th. It is also known as the "Water Festival" and people celebrate the New Year by splashing water on each other. Did you know that there are traditional dishes to eat during Songkran?
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1242. Bridging the Gap Between Science and Policy

The role of food systems science is more necessary than ever in policy formulation to rapidly respond to challenges such as climate change, conflict, biodiversity loss, and hunger. However, for many policymakers, applying science often seems problematic due to a lack of appropriate data and information, as well as clarity and practicality. As part of its efforts to connect science to policy, CGIAR, the world's largest global agricultural innovation network, has released a guide for decision makers on using food systems science.
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1241. Earth Day 2025

The artificial modification of nature accompanied by the destruction of biodiversity can impair the functions of ecosystems that support the Earth. Earth Day, celebrated on April 22, provides an opportunity to raise awareness and encourage action on various environmental crises facing the planet.
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1240. Discussion on overshoot

Many countries and companies have climate goals aimed at the Paris Agreement targets, but it is considered almost inevitable that global warming will exceed 1.5°C. Based on a review paper, we introduce the concept of "overshoot", i.e., a trajectory of global warming that exceeds the 1.5°C warming limit for a certain period of time but returns to below that limit within a certain period of time.
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1239. The JIRCAS Open House will be held in person for the first time in six years!

Tomorrow, Saturday, April 19, 2025, researchers who travel around the world to conduct research will be at the booth to introduce their research. This is a rare opportunity to talk to cutting-edge researchers, so please feel free to come and talk to us.
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1238. Global warming increases the duration of marine heatwaves

Marine heatwaves are extreme weather events characterized by persistent warm ocean waters that severely impact marine life. These events have become more intense, longer, and more frequent as a result of anthropogenic global warming. A paper published in the Proceedings of the National Academy of Sciences (PNAS) on April 14 showed that global warming has tripled the number of days per year that the ocean experiences extreme surface heat conditions.
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1237. Social Dimensions of Climate Change Impacts

The poorest and most vulnerable people tend to be the most affected by extreme weather events, even though they have the least to do with causing climate change. A World Bank study that discusses the relationship between climate change and global patterns of inequality.
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1236. Diet for Healthy Aging

The world is rapidly aging, and the spread of non-communicable diseases caused by unhealthy diets will further strain the health system, so promoting healthy diets is a global priority. A recent paper published in Nature Medicine examined follow-up data for up to 30 years and suggested that dietary patterns high in plant foods and moderate amounts of healthy animal foods may promote healthy aging.
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1235. March 2025 Was the Second Warmest March on Record

According to the EU's Copernicus Climate Change Service, March 2025 was the second warmest March on record globally, with temperatures 1.60°C above pre-industrial levels. Arctic sea ice also recorded its lowest monthly March extent in 47 years of satellite records, standing 6% below average.
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1234. From JIRCAS Southeast Asia Liaison Office #7: "Khao mak"

In Japan, amazake is called "drinkable intravenous drip" and is said to have beauty benefits. In fact, there is amazake in Thailand called "Khao mak"
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1233. The Futures of Climate Modeling

The paper "The futures of climate modeling" published in npj Climate and Atmospheric Science examines the current state of climate modeling and proposes future divergent paths for incremental change using various tools.
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1232. Feasibility of Nature-Based Solutions

Nature-based solutions offer promising opportunities, especially for vulnerable countries facing the double burden of climate change impacts and food system inefficiencies, and are expected to provide a pathway for global food system transformation. However, their technical feasibility and economic viability are highly context-dependent, and therefore require appropriate incentives and policy conditions to promote adoption.
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1231. Impacts of Anthropogenic Activities on Biodiversity

Changes in biodiversity pose significant threats to human societies at local and global scales, highlighting the urgent need to understand the impacts of anthropogenic activities on ecosystems. The paper published in Nature comprehensively analyzed published papers and quantified anthropogenic impacts on biodiversity across several spatial scales, from local to global, evaluating whether anthropogenically impacted sites are more similar to each other (homogenization) or different (differentiation) than reference sites, and examining changes in species composition.
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1230. World Food Price Index for March 2025 

The Food and Agriculture Organization of the United Nations (FAO) released the World Food Price Trends on April 4. The value for March 2025 averaged 127.1 points, almost unchanged from February. Declines in the cereal and sugar price indexes offset increases in the meat and vegetable oil price indexes, and the dairy price index was stable. Overall, the price index was 6.9% higher than the same level a year ago, but 20.7% lower than the peak in March 2022.
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1229. Permanent Changes in the Global Water Cycle

How global warming will affect the global water cycle (the continuous movement of water between the Earth and the atmosphere) is also an important issue for water resource management and weather forecasting. A paper published in Science magazine presented evidence of a permanent decrease in terrestrial water storage under current climate change by integrating multiple global geophysical datasets. The evidence suggests that the decrease in soil moisture may be irreversible due to prolonged drought conditions and reduced precipitation in certain regions.
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1228. Climate and Carbon Cycle Feedback Interactions May Significantly Accelerate Global Warming

Due to efforts to decarbonize the global economy, global anthropogenic emissions are diverging from the most extreme emission scenarios. Meanwhile, a paper published in Environmental Research Letters made a long-term prediction for the next 1,000 years and pointed out that taking into account climate, such as melting permafrost, and the carbon cycle feedback loop, including methane, could lead to a temperature rise significantly above the 2°C threshold.
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1227. What we can learn from historical writings (Takaragawa’s Newsletter vol. 6)

JIRCAS is a research organisation responsible for a series of research and development activities ranging from technological development to demonstration and social application in developing countries and other regions facing difficulties in the agriculture, forestry and fisheries industries. In each of these regions, production problems specific to each region arise, and it is necessary to find a way to solve these problems with flexible and innovative research ideas. Such ideas can actually be inspired by past practices at actual production sites. In this report, the importance of learning from historical documents, which contain a collection of local knowledge from the Edo era, is highlighted through a literature survey on sugarcane production in the Shikoku region.
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1226. Impact of Climate Change on Cherry Blossom Flowering

Long-term records of the flowering season observed at the distribution limit of a species are useful for understanding the impact of climate change on the flowering season and for developing flowering prediction models. In particular, in temperate regions, the timing of cherry blossom flowering is said to be determined by the balance between exposure to cold (low temperature requirement) for releasing dormancy and the heat requirement for flower bud growth. On the other hand, if an abnormally warm winter like last year or weather conditions with large daily temperature fluctuations like this year become the norm, it may become more difficult to predict cherry blossom flowering.
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1225. Farm Management Consulting for Farmers in Africa

In Africa, technical cooperation is being carried out in various fields, and while much of this has been successful in increasing the productivity and income of specific agricultural products, research has revealed that they have not necessarily increased total farm income and livelihoods. We decided to develop a new “farm management diagnostic tool” for Africa and tested it in Mozambique, resulting in successfully increasing the income of many farmers.