High-resolution spatial maps to assess climate-related shocks

30.11.2022 288 views

ICRISAT scientists in collaboration with the Asian Development Bank (ADB) have developed high-resolution spatial maps that enable cropland mapping for insurance claims and agriculture policy decision-making on targeting regenerative agriculture (RA).

"Agricultural insurance is becoming one of the fastest-growing markets globally. For farmers to cope with crop loss, stabilizing farm incomes through insurance payoffs can help reduce poverty. Spatial mapping is a quicker and efficient tool for guiding agriculture policy makers to minimize climate risks," said Dr Arvind Kumar, Deputy Director General-Research, ICRISAT.

Physical ground surveys are a laborious process and often require an army of surveyors to validate the effects of floods and drought. ICRISAT scientists in collaboration with the ADB developed spatial maps for South Asia to assess croplands, crop type and crop intensity data. South Asia accounts for 1.9 billion people, constituting almost 25% of the world’s population, 87% of which are smallholder farmers.

Insurance companies and government agencies require high-quality satellite imagery to monitor and map floods/droughts and other climatic conditions to make the claims process more accurate and efficient. ‚Äč

"In addition to crop insurance, spatial maps can also be used as potential tools to target regenerative agriculture. Crop type mapping can also better guide where and in what systems regenerative agriculture can be deployed," said Dr ML Jat, Research Program Director, Resilient Farm and Food Systems, ICRISAT.

Higher resolution:

To this end, ICRISAT scientists have produced three distinct spatial maps for South Asia with a spatial resolution of 30 m, which is much higher to get finer details of cropland for food and water security assessments. Currently, these factors are evaluated using mainly coarse-resolution (250–1000 m) remote sensing data.

“The high spatial resolution data would enable cropland assessment, modelling, mapping, and monitoring for South Asia, which is home to nearly two billion people and 230 million hectares of net cropland area. Subsequently, the data would help generate various development models for accurate monitoring and decision-making for the entire region,” said Murali Krishna Gumma, Principal Scientist and Cluster Leader – Geospatial Sciences and Big Data at ICRISAT.

The team developed three spatial maps for South Asia for the year 2014-15 to support food and water security assessments and management. The three distinct spatial maps would assess irrigated versus rainfed croplands, crop types or crop dominance and cropping intensity i.e., the number of times a crop is grown on the same plot of land in a year.

Source - https://www.directionsmag.com

03.02.2023

Spain - Almeria's yellow melon production is decreasing

The cold has slowed down Almeria's horticultural production after a whole cycle that could be defined as exhausting for plants. "The high autumn and winter temperatures weakened the plants and advanced all the crops.

03.02.2023

Canada - The fight against ginseng replant disease

Amy Shi knows her enemy. Now she must learn to defeat it. A plant pathologist specializing in ginseng, Shi’s battleground is deep in the soil, where a fungal pathogen known as Ilyonectria mors-panacis is dead set on rotting the root of what was once Ontario’s most lucrative export crop.

03.02.2023

USA - Strengthening sorghum against a worldwide fungal threat

A gene discovered by a team of Agricultural Research Service (ARS) and Purdue University scientists could help fortify the defenses of sorghum to anthracnose, a disease of the cereal grain crop that can inflict yield losses of up to 50 percent.

03.02.2023

Spain - The damage would be much greater if these frosts had happened a month from now

The intense cold in Spain over the past two weeks, with several nights of sub-zero temperatures, is taking its toll on several crops in the Murcia region, mainly stone fruit and field vegetables.

03.02.2023

Uzbekistan - Harvest of early onions is largely delayed and may be lower than expected

The consequences of the weather anomalies in January for the Central Asian onion market are not limited to the loss of last year’s crop stocks, the subsequent sharp rise in prices, and a series of bans on onion exports from almost all countries of the region.

03.02.2023

USA - SLO County farms suffer millions in losses from storms

When the big January storm hit on the 9th and 10th of the month, Alford’s fields of cabbage flooded and disappeared under a new lake of water from the half-a-foot of rain that overwhelmed debris-clogged drainage ditches.

03.02.2023

UK - Weather outlook for winter cropping

Although recently we have been discussing and analysing how weather all over the globe has been impacting our cereal and oilseed prices, how has UK weather been for our domestic winter crops?

03.02.2023

USA - Farmers suffer losses as Salinas Valley fields flood

Salinas Valley was initially spared the worst of the damage as storms battered California last month. But then the Salinas River overflowed its banks Jan. 10, breaching berms and levees.