Limits of agricultural greenhouse gas calculators to predict soil N2O and CH4 fluxes in tropical agriculture
Demand for tools to rapidly assess greenhouse gas impacts from policy and technological change in the agricultural sector has catalyzed the development of ‘GHG calculators’— simple accounting approaches that use a mix of emission factors and empirical models to calculate GHG emissions with minimal i...
| Main Authors: | , , , , , , , , , , , , , |
|---|---|
| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Springer
2016
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/74313 |
| _version_ | 1855525850452066304 |
|---|---|
| author | Richards, Meryl B. Metzel, Ruth Chirinda, Ngonidzashe Ly, Proyuth Nyamadzawo, George Vu, Quynh Duong Neergaard, Andreas de Oelofse, Myles Wollenberg, Eva Karoline Keller, Emma Malin, Daniella Olesen, Jørgen E. Hillier, Jonathan Rosenstock, Todd S. |
| author_browse | Chirinda, Ngonidzashe Hillier, Jonathan Keller, Emma Ly, Proyuth Malin, Daniella Metzel, Ruth Neergaard, Andreas de Nyamadzawo, George Oelofse, Myles Olesen, Jørgen E. Richards, Meryl B. Rosenstock, Todd S. Vu, Quynh Duong Wollenberg, Eva Karoline |
| author_facet | Richards, Meryl B. Metzel, Ruth Chirinda, Ngonidzashe Ly, Proyuth Nyamadzawo, George Vu, Quynh Duong Neergaard, Andreas de Oelofse, Myles Wollenberg, Eva Karoline Keller, Emma Malin, Daniella Olesen, Jørgen E. Hillier, Jonathan Rosenstock, Todd S. |
| author_sort | Richards, Meryl B. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Demand for tools to rapidly assess greenhouse gas impacts from policy and technological change in the agricultural sector has catalyzed the development of ‘GHG calculators’— simple accounting approaches that use a mix of emission factors and empirical models to calculate GHG emissions with minimal input data. GHG calculators, however, rely on models calibrated from measurements conducted overwhelmingly under temperate, developed country conditions. Here we show that GHG calculators may poorly estimate emissions in tropical developing countries by comparing calculator predictions against measurements from Africa, Asia, and Latin America. Estimates based on GHG calculators were greater than measurements in 70% of the cases, exceeding twice the measured flux nearly half the time. For 41% of the comparisons, calculators incorrectly predicted whether emissions would increase or decrease with a change in management. These results raise concerns about applying GHG calculators to tropical farming systems and emphasize the need to broaden the scope of the underlying data. |
| format | Journal Article |
| id | CGSpace74313 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace743132025-02-20T11:27:48Z Limits of agricultural greenhouse gas calculators to predict soil N2O and CH4 fluxes in tropical agriculture Richards, Meryl B. Metzel, Ruth Chirinda, Ngonidzashe Ly, Proyuth Nyamadzawo, George Vu, Quynh Duong Neergaard, Andreas de Oelofse, Myles Wollenberg, Eva Karoline Keller, Emma Malin, Daniella Olesen, Jørgen E. Hillier, Jonathan Rosenstock, Todd S. greenhouse gas soil climate change agriculture food security mitigation Demand for tools to rapidly assess greenhouse gas impacts from policy and technological change in the agricultural sector has catalyzed the development of ‘GHG calculators’— simple accounting approaches that use a mix of emission factors and empirical models to calculate GHG emissions with minimal input data. GHG calculators, however, rely on models calibrated from measurements conducted overwhelmingly under temperate, developed country conditions. Here we show that GHG calculators may poorly estimate emissions in tropical developing countries by comparing calculator predictions against measurements from Africa, Asia, and Latin America. Estimates based on GHG calculators were greater than measurements in 70% of the cases, exceeding twice the measured flux nearly half the time. For 41% of the comparisons, calculators incorrectly predicted whether emissions would increase or decrease with a change in management. These results raise concerns about applying GHG calculators to tropical farming systems and emphasize the need to broaden the scope of the underlying data. 2016-05-20 2016-05-24T19:07:47Z 2016-05-24T19:07:47Z Journal Article https://hdl.handle.net/10568/74313 en Open Access Springer Richards MB, Metzel R, Chirinda N, Ly P, Nyamadzawo G, Vu QD, de Neergaard A, Oelofse M, Wollenberg E, Keller E, Malin D, Olesen JE, Hillier J, Rosenstock TS. 2016. Limits of agricultural greenhouse gas calculators to predict soil N20 and CH4 fluxes in tropical agriculture. Scientific Reports 6:26279. |
| spellingShingle | greenhouse gas soil climate change agriculture food security mitigation Richards, Meryl B. Metzel, Ruth Chirinda, Ngonidzashe Ly, Proyuth Nyamadzawo, George Vu, Quynh Duong Neergaard, Andreas de Oelofse, Myles Wollenberg, Eva Karoline Keller, Emma Malin, Daniella Olesen, Jørgen E. Hillier, Jonathan Rosenstock, Todd S. Limits of agricultural greenhouse gas calculators to predict soil N2O and CH4 fluxes in tropical agriculture |
| title | Limits of agricultural greenhouse gas calculators to predict soil N2O and CH4 fluxes in tropical agriculture |
| title_full | Limits of agricultural greenhouse gas calculators to predict soil N2O and CH4 fluxes in tropical agriculture |
| title_fullStr | Limits of agricultural greenhouse gas calculators to predict soil N2O and CH4 fluxes in tropical agriculture |
| title_full_unstemmed | Limits of agricultural greenhouse gas calculators to predict soil N2O and CH4 fluxes in tropical agriculture |
| title_short | Limits of agricultural greenhouse gas calculators to predict soil N2O and CH4 fluxes in tropical agriculture |
| title_sort | limits of agricultural greenhouse gas calculators to predict soil n2o and ch4 fluxes in tropical agriculture |
| topic | greenhouse gas soil climate change agriculture food security mitigation |
| url | https://hdl.handle.net/10568/74313 |
| work_keys_str_mv | AT richardsmerylb limitsofagriculturalgreenhousegascalculatorstopredictsoiln2oandch4fluxesintropicalagriculture AT metzelruth limitsofagriculturalgreenhousegascalculatorstopredictsoiln2oandch4fluxesintropicalagriculture AT chirindangonidzashe limitsofagriculturalgreenhousegascalculatorstopredictsoiln2oandch4fluxesintropicalagriculture AT lyproyuth limitsofagriculturalgreenhousegascalculatorstopredictsoiln2oandch4fluxesintropicalagriculture AT nyamadzawogeorge limitsofagriculturalgreenhousegascalculatorstopredictsoiln2oandch4fluxesintropicalagriculture AT vuquynhduong limitsofagriculturalgreenhousegascalculatorstopredictsoiln2oandch4fluxesintropicalagriculture AT neergaardandreasde limitsofagriculturalgreenhousegascalculatorstopredictsoiln2oandch4fluxesintropicalagriculture AT oelofsemyles limitsofagriculturalgreenhousegascalculatorstopredictsoiln2oandch4fluxesintropicalagriculture AT wollenbergevakaroline limitsofagriculturalgreenhousegascalculatorstopredictsoiln2oandch4fluxesintropicalagriculture AT kelleremma limitsofagriculturalgreenhousegascalculatorstopredictsoiln2oandch4fluxesintropicalagriculture AT malindaniella limitsofagriculturalgreenhousegascalculatorstopredictsoiln2oandch4fluxesintropicalagriculture AT olesenjørgene limitsofagriculturalgreenhousegascalculatorstopredictsoiln2oandch4fluxesintropicalagriculture AT hillierjonathan limitsofagriculturalgreenhousegascalculatorstopredictsoiln2oandch4fluxesintropicalagriculture AT rosenstocktodds limitsofagriculturalgreenhousegascalculatorstopredictsoiln2oandch4fluxesintropicalagriculture |