Salam, Abdul Kadir (1999) Perubahan Ketersediaan Unsur Hara Mikro Kelompok Logam Berat Akibat Alih Fungsi Lahan di Lampung Barat. Lingkungan dan Pembangnan, 19 (3). pp. 176-183. ISSN 0216-2717

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Abstract

Forest conversion is suggested to change some physical and chemical properties of soils including the availabilities of heavy metal micronutrients. This research was to study the changes in heavy metal micronutrient availabilities caused by land use conversion from forest to plantation and cultivated lands. Soil samples were taken from 3 locations (Bukit Ringgis, Sekincau, and Tri Mulya) in West Lampung, each of which comprised four land-uses, i.e. primary forest, secondary forest, coffee plantation, and intensive cultivated land. Availabilities of Cu, Zn, and Fe were in general higher in the primary forest and/or secondary forest than those in coffee plantation and cultivated land. This phenomenon indicates that land-use conversion from forest to other land-uses lowered the availabilities of heavy metal micronutrients. The availability of Mn in Tri Mulya was higher in forest than those in coffee plantation and cultivated land, but lower in forest than those in coffee plantation and cultivated land in Bukit Ringgis and Sekincau. This phenomenon indicates that Mn released through soil weathering in coffee plantation and cultivated lands in Bukit Ringgis and Sekincau was adsorbed by soil labile fractions while those on Tri Mulya was leached out, precipitated, or strongly adsorbed by soil solids. With a few exceptions, the changes in available heavy metal micronutrients were correlated with the changes in soil CEC, organic C, and total N.

Item Type: Article
Uncontrolled Keywords: Forest, Heavy Metals, Land-Use Conversion, Micronutrients
Subjects: S Agriculture > S Agriculture (General)
Divisions: Fakultas Pertanian (FP) > Prodi Ilmu Tanah
Depositing User: Abdul Kadir Salam
Date Deposited: 26 Apr 2018 03:58
Last Modified: 26 Apr 2018 03:58
URI: http://repository.lppm.unila.ac.id/id/eprint/6472

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