{"id":2310,"date":"2026-09-27T01:14:00","date_gmt":"2026-09-26T16:14:00","guid":{"rendered":"https:\/\/onepress.co.kr\/index.php\/briefing\/2026-09-27-dryland-boom-bust-en\/"},"modified":"2026-09-27T01:14:00","modified_gmt":"2026-09-26T16:14:00","slug":"2026-09-27-dryland-boom-bust-en","status":"publish","type":"briefing","link":"https:\/\/onepress.co.kr\/index.php\/briefing\/2026-09-27-dryland-boom-bust-en\/","title":{"rendered":"About 82% of greening drylands also became more variable year to year"},"content":{"rendered":"

2026-09-27 01:14 KST<\/strong><\/p>\n

Researchers analysed both the long trend and annual variability of leaf area index. Wet-year highs rose while dry-year lows declined across broad areas.<\/p>\n

Drylands cover about 40% of land and support more than two billion people, making bad-year losses especially relevant to rain-fed farming and grazing.<\/p>\n

Why averages hide the problem<\/h2>\n

A greener decade is not necessarily a steadier decade. Extra growth in wet, high-CO2 years may create more tissue to maintain when the next drought arrives.<\/p>\n

What 13 models missed<\/h2>\n

None of 13 leading global vegetation models captured the observed rise in annual variability. Long-range productivity projections therefore omit an important source of uncertainty.<\/p>\n

\"About
This AI-generated image explains the topic; it is not a photograph of an actual event, observation or field site.<\/figcaption><\/figure>\n

What 82% measures<\/h2>\n

It is the share of analysed dryland area with rising variability, not people or farms. Satellite leaf area is not complete ecosystem health and can combine shrub gains with grass losses.<\/p>\n

What still needs checking<\/h2>\n

The pattern may signal declining resilience but does not predict collapse dates. Field vegetation, soil moisture, grazing and irrigation data must connect the satellite signal to food and forage losses.<\/p>\n

Primary source and independent checks<\/h2>\n

Primary source: Nature Climate Change paper<\/a><\/p>\n

Institutional explanation: University of Arizona research release<\/a><\/p>\n

Independent check: Independent bibliographic check<\/a><\/p>\n

Read in other languages<\/h2>\n

\ud55c\uad6d\uc5b4<\/a> \u00b7 English<\/a> \u00b7 Espa\u00f1ol<\/a> \u00b7 \u65e5\u672c\u8a9e<\/a> \u00b7 Ti\u1ebfng Vi\u1ec7t<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Satellite records from 1982\u20132020 show that about 82% of global drylands greened on average while year-to-year vegetation swings widened. This does not mean 82% has desertified or will soon collapse; it describes a larger gap between good and bad years.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-2310","briefing","type-briefing","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/briefing\/2310","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/briefing"}],"about":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/types\/briefing"}],"wp:attachment":[{"href":"https:\/\/onepress.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=2310"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}