دورية أكاديمية
Impact of Climate on the Global Capacity for Enhanced Rock Weathering on Croplands
| العنوان: | Impact of Climate on the Global Capacity for Enhanced Rock Weathering on Croplands |
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| المؤلفون: | Seung H. Baek, Yoshiki Kanzaki, Juan M. Lora, Noah Planavsky, Christopher T. Reinhard, Shuang Zhang |
| المصدر: | Earth's Future, Vol 11, Iss 8, Pp n/a-n/a (2023) |
| بيانات النشر: | Wiley, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Environmental sciences LCC:Ecology |
| مصطلحات موضوعية: | enhanced rock weathering, carbon dioxide removal, climate change, cropland, Environmental sciences, GE1-350, Ecology, QH540-549.5 |
| الوصف: | Abstract Enhanced rock weathering (ERW) on croplands has emerged as an economically and ecologically promising negative emissions technology. However, estimated total carbon sequestration potential from ERW on croplands and its potential sensitivity to climate conditions requires further understanding. Here we combine 1‐D reactive transport modeling with climate model experiments to simulate ERW on ∼1,000 agricultural sites globally. Applying a fixed rate of 10 tons of basalt dust per hectare on these sites sequesters 64 gigatons of CO2 over a 75‐year period; when extrapolated to all agricultural land, ERW sequesters 217 gigatons of CO2 over the same time interval. However, we find that a significant fraction of applied basalt does not weather even on a multidecadal timescale, indicating the need to optimize application strategies for cost effectiveness. We find that ERW becomes modestly more effective with global warming and predict that the payback period for a given ERW deployment is significantly shorter in hot and humid environments currently coinciding with relatively low per‐capita incomes. These results provide strong impetus for investment in agricultural reform in developing economies and highlight an additional potential co‐benefit of ERW. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2328-4277 |
| Relation: | https://doaj.org/toc/2328-4277 |
| DOI: | 10.1029/2023EF003698 |
| URL الوصول: | https://doaj.org/article/480325290def44ffbc3fd30cdd2af326 |
| رقم الأكسشن: | edsdoj.480325290def44ffbc3fd30cdd2af326 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 23284277 |
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| DOI: | 10.1029/2023EF003698 |