Soil Changes Associated with Imperata cylindrica Grassland Conversion in Indonesia

Handayani, Iin; Prawito, Priyono; Ihsan, Mahya

doi:10.3923/ijss.2012.61.70

Cited by 13 publications

(9 citation statements)

References 16 publications

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“…Higher values of bulk density in Gulmarg Meadow site may be attributed to reduction in organic matter decomposition due to increase in temperature and humidity following deforestation and cultivation (Haji Abbasi, 1997). Lower values of bulk density may be due to presence of high organic matter content at Drung forest site and Gulmarg forest site because organic matter had a significant effect on the bulk density of soils (Handayani et al, 2012). Within the two depths, bulk density increased with the increase in depth, which may be attributed to the corresponding decrease in organic matter with depth and mixing with mineral material in the profile (Schulp, 2008).…”

Section: Bulk Densitymentioning

confidence: 89%

Assessment of Soil Organic Carbon Stock of Temperate Coniferous Forests in Northern Kashmir

2015

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Soil organic carbon (SOC) estimation in temperate forests of the Himalaya is important to estimate their contribution to regional, national and global carbon stocks. Physico chemical properties of soil were quantified to assess soil organic carbon density (SOC) and SOC CO 2 mitigation density at two soil depths (0-10 and 10-20 cms) under temperate forest in the Northern region of Kashmir Himalayas India. The results indicate that conductance, moisture content, organic carbon and organic matter were significantly higher while as pH and bulk

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Section: Bulk Densitymentioning

confidence: 89%

Assessment of Soil Organic Carbon Stock of Temperate Coniferous Forests in Northern Kashmir

2015

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“…Particulate organic C positively correlates to dry weight of the plant, N concentration and N uptake by cassava plant (Widjanarko et al, 2012). Differences in SOC fractions in Ultisols (silty loam) on various land uses were reported by Handayani et al, (2012). The data on Table 2 shows that the lowest content of total SOC is found in cassava land, while the highest is in agroforestry.…”

Section: Effect Of Land Use and Management Practices On Soil Organic mentioning

confidence: 99%

“…Soil organic carbon (SOC) constitutes both a source and sink for nutrients (Bationo et al, 2007) and determines soil fertility, productivity, sustainability of agriculture ecosystem (Craswell and Lefroy, 2001) and also represents the potential stabilization or degradation of the soil resource by different land management (Handayani et al, 2012). Soil organic matter (SOM) consists of about 45-60% of its mass as SOC (Lal, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…This relates to SOM input and decomposition process occurring in different environments. Practices in conservational soil tillage, such as no-tillage (Quincke et al, 2007), organic farming and agroforestry (Handayani et al, 2012) can ameliorate SOM and other soil properties. High rainfall and temperature in tropical rainforest enable the addition of soil organic C (SOC) from plant debris and roots which are accompanied with high decomposition rate by microorganisms (Kursten and Burschel, 1993).…”

Section: Introductionmentioning

confidence: 99%

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Dynamics of Soil Organic Carbon Fractions Under Different Land Management in Wet Tropical Areas

Ermadani

Hermansah

Yulnafatmawita

et al. 2018

J.Sol

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Karbon (C) organik tanah yang merupakan bagian utama dari bahan organik tanah mengalami penurunan sebagai akibat perubahan-perubahan penggunaan lahan dari kondisi alami menjadi lahan-lahan pertanian. Penurunan C organik tanah menjadi semakin besar karena masukan bahan organik yang rendah dan bila penurunan ini. berlangsung terus menerus maka pada akhirnya menyebabkan degradasi tanah. Artikel ini membahas peranan, dekomposisi dan struktur dari bahan organik tanah dalam hubungannya dengan dinamika fraksi C organik tanah pada pengelolaan lahan yang berbeda di daerah tropis basah. Perubahan penggunaan dan pengelolaan lahan menyebabkan terjadinya perubahan C organik total dan fraksi-fraksi C organik labil dan stabil tanah. Beberapa penelitian telah menunjukkan bahwa fraksi C organik labil seperti C organik partikulat lebih responsif terhadap perubahan-perubahan dari pengelolaan tanah dan merupakan suatu indikator yang sensitif dari kualitas tanah. Disamping itu fraksi C organik stabil seperti asam humat yang mengalami perubahan karena praktek-praktek pengelolaan tanah dapat digunakan untuk menilai kapasitas potensial tanah sebagai penyimpan karbon. Perubahan-perubahan penggunaan lahan dan pengelolaan tanah mempunyai pengaruh negatif dan positif terhadap C organik total, fraksi C organik labil (C organik partikulat) dan fraksi C organik stabil (asam humat). Praktek-praktek pengelolaan yang dapat mempertahankan dan memperbaiki fraksi-fraksi C organik tanah meliputi sistem agroforestri, aplikasi pupuk organik, mulsa dan pengembalian sisa tanaman ke dalam tanah. Fraksi C organik partikulat dan asam humat menunjukkan perubahan-perubahan yang lebih besar dibandingkan C organik total akibat perubahan-perubahan penggunaan lahan dan praktek-praktek pengelolaan tanah di daerah tropis basah.Key words : Fraksi C organik, penggunaan lahan, tropis basah

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“…Conversion of Imperata spp. grassland to farms (legume fields, agroforestry, and cassava fields) in mollisols of Indonesia, increased the soil porosity by 7%, soil organic carbon (SOC) by 6%, and total nitrogen by 18% (Handayani et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Land Use Conversion and Soil Properties in a Lowland Tropical Landscape of Papua New Guinea

George

Killur

Cornelio

2013

jtfm

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Land use conversion affects natural soil processes and can potentially decrease soils productivity. A representative area was selected to study the effects of land use conversion in Unitech Campus, Southeastern lowlands of Papua New Guinea (PNG). Area selected for the study was once covered by tropical rainforest and has been subjected to various land use types over time. Representative soil samples were collected under 4 main land use types (secondary forest, plantation forest, grassland, and agricultural garden) at 2 depths (0-0.15 m and 0.15-0.30 m) with 3 replicates per land use. Soil bulk density, water infiltration rate, and cumulative water infiltration values were significantly greater (p < 0.05) under grasslands than under secondary and plantation forests. Among soil chemical properties, extractable potassium content and pH showed significant differences (p < 0.05) among the land uses, pH values increased upon conversion of forested lands to grassland or agricultural gardens. Conversion of secondary forests into grasslands or agricultural gardens leads to depletion of Bray's phosphorus and extractable potassium. Tree-based land uses were optimum due to better nutrient cycling conditions and lower bulk density compared to grassland and agricultural garden despite the low pH conditions and lower water infiltration.

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Soil Changes Associated with Imperata cylindrica Grassland Conversion in Indonesia

Cited by 13 publications

References 16 publications

Assessment of Soil Organic Carbon Stock of Temperate Coniferous Forests in Northern Kashmir

Assessment of Soil Organic Carbon Stock of Temperate Coniferous Forests in Northern Kashmir

Dynamics of Soil Organic Carbon Fractions Under Different Land Management in Wet Tropical Areas

Land Use Conversion and Soil Properties in a Lowland Tropical Landscape of Papua New Guinea

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