Sökning: WFRF:(Hirons Mark) > Carbon dynamics, ne...
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000 | 05078naa a2200541 4500 | |
001 | oai:lup.lub.lu.se:b45a2e6b-9a9f-439c-ace9-6a6ec77a3f43 | |
003 | SwePub | |
008 | 190704s2019 | |||||||||||000 ||eng| | |
024 | 7 | a https://lup.lub.lu.se/record/b45a2e6b-9a9f-439c-ace9-6a6ec77a3f432 URI |
024 | 7 | a https://doi.org/10.1111/gcb.146612 DOI |
040 | a (SwePub)lu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a art2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 1 | a Morel, Alexandra C.u University of Oxford,Zoological Society of London4 aut |
245 | 1 0 | a Carbon dynamics, net primary productivity and human-appropriated net primary productivity across a forest–cocoa farm landscape in West Africa |
264 | c 2019-06-06 | |
264 | 1 | b Wiley,c 2019 |
520 | a Terrestrial net primary productivity (NPP) is an important metric of ecosystem functioning; however, there are little empirical data on the NPP of human-modified ecosystems, particularly smallholder, perennial crops like cocoa (Theobroma cacao), which are extensive across the tropics. Human-appropriated NPP (HANPP) is a measure of the proportion of a natural system's NPP that has either been reduced through land-use change or harvested directly and, previously, has been calculated to estimate the scale of the human impact on the biosphere. Additionally, human modification can create shifts in NPP allocation and decomposition, with concomitant impacts on the carbon cycle. This study presents the results of 3 years of intensive monitoring of forest and smallholder cocoa farms across disturbance, management intensity, distance from forest and farm age gradients. We measured among the highest reported NPP values in tropical forest, 17.57 ± 2.1 and 17.7 ± 1.6 Mg C ha−1 year−1 for intact and logged forest, respectively; however, the average NPP of cocoa farms was still higher, 18.8 ± 2.5 Mg C ha−1 year−1, which we found was driven by cocoa pod production. We found a dramatic shift in litterfall residence times, where cocoa leaves decomposed more slowly than forest leaves and shade tree litterfall decomposed considerably faster, indicating significant changes in rates of nutrient cycling. The average HANPP value for all cocoa farms was 2.1 ± 1.1 Mg C ha−1 year−1; however, depending on the density of shade trees, it ranged from −4.6 to 5.2 Mg C ha−1 year−1. Therefore, rather than being related to cocoa yield, HANPP was reduced by maintaining higher shade levels. Across our monitored farms, 18.9% of farm NPP was harvested (i.e., whole cocoa pods) and only 1.1% (i.e., cocoa beans) was removed from the system, suggesting that the scale of HANPP in smallholder cocoa agroforestry systems is relatively small. | |
650 | 7 | a LANTBRUKSVETENSKAPERx Lantbruksvetenskap, skogsbruk och fiskex Skogsvetenskap0 (SwePub)401042 hsv//swe |
650 | 7 | a AGRICULTURAL SCIENCESx Agriculture, Forestry and Fisheriesx Forest Science0 (SwePub)401042 hsv//eng |
650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskap0 (SwePub)1052 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciences0 (SwePub)1052 hsv//eng |
653 | a carbon cycling | |
653 | a Ghana | |
653 | a HANPP | |
653 | a net primary productivity | |
653 | a smallholder | |
653 | a Theobroma cacao | |
700 | 1 | a Adu Sasu, Michaelu Nature Conservation Research Centre (NCRC Ghana)4 aut |
700 | 1 | a Adu-Bredu, Stephenu Forestry Research Institute of Ghana (FORIG)4 aut |
700 | 1 | a Quaye, Marvinu Nature Conservation Research Centre (NCRC Ghana)4 aut |
700 | 1 | a Moore, Christineu University of Oxford4 aut |
700 | 1 | a Ashley Asare, Rebeccau Nature Conservation Research Centre (NCRC Ghana)4 aut |
700 | 1 | a Mason, Johnu Nature Conservation Research Centre (NCRC Ghana)4 aut |
700 | 1 | a Hirons, Marku University of Oxford4 aut |
700 | 1 | a McDermott, Constance L.u University of Oxford4 aut |
700 | 1 | a Robinson, Elizabeth J.Z.u University of Reading4 aut |
700 | 1 | a Boyd, Emilyu Lund University,Lunds universitet,LUCSUS,Samhällsvetenskapliga institutioner och centrumbildningar,Samhällsvetenskapliga fakulteten,LUCSUS (Lund University Centre for Sustainability Studies),Departments of Administrative, Economic and Social Sciences,Faculty of Social Sciences4 aut0 (Swepub:lu)em6237bo |
700 | 1 | a Norris, Kenu Zoological Society of London4 aut |
700 | 1 | a Malhi, Yadvinderu University of Oxford4 aut |
710 | 2 | a University of Oxfordb Zoological Society of London4 org |
773 | 0 | t Global Change Biologyd : Wileyg 25:8, s. 2661-2677q 25:8<2661-2677x 1354-1013x 1365-2486 |
856 | 4 | u http://dx.doi.org/10.1111/gcb.14661y FULLTEXT |
856 | 4 | u https://ora.ox.ac.uk/objects/uuid:08f2ac1f-112c-4f37-a80d-54f80058dcdc/download_file?safe_filename=Morel%2520et%2520al%2520Carbon%2520dynamics.pdf&file_format=application%2Fpdf&type_of_work=Journal+article |
856 | 4 8 | u https://lup.lub.lu.se/record/b45a2e6b-9a9f-439c-ace9-6a6ec77a3f43 |
856 | 4 8 | u https://doi.org/10.1111/gcb.14661 |
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