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EFEKTIVITAS WAKTU PENGAMBILAN DAN PENGUKURAN CONTOH GAS RUMAH KACA PADA PENGELOLAAN AIR DI LAHAN SAWAH Anggri Hervani; A. Wiharjaka
Widyariset Vol 17, No 2 (2014): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (631.279 KB) | DOI: 10.14203/widyariset.17.2.2014.227-232

Abstract

The agricultural sector is one of the greenhouse gases (GHG) sources and sinks. Inventory of GHG emis­ sionsintheagriculturalsectorisdonebyapplyingtheprincipleof  measurable,reportable,verifiableorMRV, thusGHGmeasurement resultsarenotbiasedorunder/overestimate, reliable,andcheaper.The researchaimedto assess the most effective retrieval sampling time and measurement of greenhouse gas at different water manage­ mentsinricefield.Thefirstfactortreatmentwasthemanagementofirrigationwaterintheformsofcontinuous andintermittentirrigationusingarandomizedblockdesignwhichwasreplicatedthreetimes.Thesecondfactor treatmentwasthegassamplingtimeat6–7,9–10,12–13,15–16,and18–19.ObserveddatawasCO andCH fluxes.TheresultsshowedthatintermittentirrigationcouldreduceCH emissionsmorethan27%comparedto continuousirrigation.BasedonPearsoncorrelationvalue,samplingtimeandmeasurementofCO andCH were the most effective at 15–16 with correlation values of 0.901 and 0.984, respectively.
EFEKTIVITAS WAKTU PENGAMBILAN DAN PENGUKURAN CONTOH GAS RUMAH KACA PADA PENGELOLAAN AIR DI LAHAN SAWAH Anggri Hervani; A. Wiharjaka
Widyariset Vol 17, No 2 (2014): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (631.279 KB) | DOI: 10.14203/widyariset.17.2.2014.227-232

Abstract

The agricultural sector is one of the greenhouse gases (GHG) sources and sinks. Inventory of GHG emis­ sionsintheagriculturalsectorisdonebyapplyingtheprincipleof  measurable,reportable,verifiableorMRV, thusGHGmeasurement resultsarenotbiasedorunder/overestimate, reliable,andcheaper.The researchaimedto assess the most effective retrieval sampling time and measurement of greenhouse gas at different water manage­ mentsinricefield.Thefirstfactortreatmentwasthemanagementofirrigationwaterintheformsofcontinuous andintermittentirrigationusingarandomizedblockdesignwhichwasreplicatedthreetimes.Thesecondfactor treatmentwasthegassamplingtimeat6–7,9–10,12–13,15–16,and18–19.ObserveddatawasCO andCH fluxes.TheresultsshowedthatintermittentirrigationcouldreduceCH emissionsmorethan27%comparedto continuousirrigation.BasedonPearsoncorrelationvalue,samplingtimeandmeasurementofCO andCH were the most effective at 15–16 with correlation values of 0.901 and 0.984, respectively.
Co-Authors A. Wiharjaka