This drought-hardy desert shrub is migrating west as climate warms
Zhao H, Liu X, Li P, Luo X, Liu J
Climate Adaptation
If you garden in a dry or sandy spot, this shrub's ability to thrive on precipitation as low as 350-400mm a year and tolerate steep, poor soils makes it a model for picking tough, climate-resilient plants for erosion-prone land.
Researchers used location records and a computer model to figure out exactly what conditions a hardy little shrub called Caragana microphylla needs to survive, things like rainfall, slope, and soil chemistry. They found it already covers a huge swath of northern China, but as the climate keeps changing, the best habitat for it will shift westward, sometimes by hundreds of kilometers within a few decades.
Key Findings
Current suitable habitat covers 3.329 million km2, about 34.7% of China, concentrated in northern regions
Five factors (annual precipitation, slope, coldest-quarter precipitation, topsoil calcium carbonate, and temperature seasonality) account for 67.6% of habitat suitability
Higher-emission scenarios expand suitable area versus low-emission ones, with the distribution center shifting up to 448.51 km westward by 2050 under one scenario
chevron_right Technical Summary
Scientists mapped where a tough shrub called Caragana microphylla can grow across China now and in the future, finding its suitable habitat currently covers over a third of the country but will shift westward as the climate warms.
Abstract Preview
Original paper
Potential distribution study of Caragana microphylla in China based on MaxEnt modeling.
Climate, soil factors, and topography play a decisive role in the spatial distribution of species. Predicting the potential distribution of Caragana microphylla Lam. over time is of great significa...
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