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All Journal Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Caraka Tani: Journal of Sustainable Agriculture
. Suwardi . Suwardi
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Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering

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Dinamika Vegetasi Mangrove Holosen Daerah Semarang Berdasarkan bukti Palinologi Setijadi, Rachmad; Suwardi, Suwardi; Suedy, Sri Widodo Agung
Dinamika Rekayasa Vol 6, No 1 (2010): Dinamika Rekayasa - Februari 2010
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2010.6.1.28

Abstract

Palynological evidences (pollen and spores) have been used to study mangrove diversity and vegetation fluctuation at coastal  zone sites at Muktiharja, Kemijen Semarang , province of Central Java. Data was collected in April 2nd to April 17th 2006 following transect method, for sediments sampling used surface subsurface sampling method (depth in 25cm). Pollen preparation used Acetolysis method. The result showed that mangrove forest in the coastal zone of Muktiharja, Kemijen Semarang was dominated by Rhizophoarceae pollen type (included Rhizophora genus : Rhizophora mucronata, Rhizophora stylosa dan Rhizophora apiculata). Vegetation of mangrove forrest in this bay was fluctuated which terrestrial climate was influenced in this mangrove forrest.
Assessing N2O Emissions from Tropical Crop Cultivation in Mineral and Peatland Soils: A Review Suwardi Suwardi; Darmawan Darmawan; Gunawan Djajakirana; Basuki Sumawinata; Nourma Al Viandari
Caraka Tani: Journal of Sustainable Agriculture Vol 38, No 2 (2023): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v38i2.75235

Abstract

Nitrous oxide (N2O) emissions from agricultural activities contribute significantly to global warming. Understanding the factors influencing N2O emissions is crucial for developing effective mitigation strategies. This review assesses N2O emissions from various crops cultivated in tropical mineral and peatland soils, providing insights into the impact of land use, fertilization practices and rainfall on N2O fluxes. Field measurements of N2O fluxes were conducted in agricultural fields growing corn, peanuts, and cassava in Bogor Regency, West Java Province, as well as in peatland areas with Acacia plantations and natural primary forests in Bengkalis Regency, Riau Province. The study assesses the total N2O fluxes for each crop and land type, revealing significant variations in N2O emissions among different crops and land uses. Peatland areas exhibit higher emissions compared to mineral soils, emphasizing the need for targeted mitigation measures in these ecosystems. The findings highlight the importance of considering the type and age of land use when evaluating N2O emissions. Land management practices, such as fertilizer use and soil disturbance, emerge as critical factors affecting N2O emissions. Improper fertilizer application and excessive soil disturbance can lead to increased N2O emissions, underscoring the necessity for careful N fertilizer management and conservation tillage techniques.
Co-Authors Basuki Sumawinata Darmawan Darmawan Gunawan Djajakirana Nourma Al Viandari Rachmad Setijadi, Rachmad Sri Widodo Agung Suedy