The Impact of Nickel Mining on Soil Properties and Growth of Two Fast-Growing Tropical Trees Species

Opencast nickel mining is common in natural forests of Indonesia. However, rehabilitation of postmining degraded land is difficult. We investigated the effect of opencast nickel mining on soil chemical properties and the growth of two fast-growing tropical tree species, Falcataria moluccana and Albi...

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Bibliographic Details
Published in:International journal of forestry research 2020, Vol.2020 (2020), p.1-9
Main Authors: Tawaraya, Keitaro, Sato, Takumi, Turjaman, Maman, Prematuri, Ricksy
Format: Article
Language:English
Subjects:
Agroforestry
Biodiversity
Calcium
Carbon/nitrogen ratio
Cation exchange
Cation exchanging
Chemical properties
Dry weight
Environmental economics
Falcataria moluccana
Forest soils
Forests
Laboratories
Mining
Nickel
Nitrogen
Open pit mining
pH effects
Phosphorus
Rehabilitation
Seedlings
Seeds
Sodium
Soil chemistry
Soil fertility
Soil investigations
Soil pH
Soil properties
Soils
Species
Trees
Weight
Wood
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Summary:Opencast nickel mining is common in natural forests of Indonesia. However, rehabilitation of postmining degraded land is difficult. We investigated the effect of opencast nickel mining on soil chemical properties and the growth of two fast-growing tropical tree species, Falcataria moluccana and Albizia saman. Soil was collected from post-nickel mining land and a nearby natural forest. Soil pH, available phosphorus (P) concentration, total carbon (TC) and total nitrogen (TN) concentration, C/N ratio, cation exchange capacity (CEC), and exchangeable K, Na, Mg, Ca, Fe, and Ni concentrations were determined. Falcataria moluccana and A. saman were then grown in the collected soils for 15 weeks in a greenhouse. Shoot height and shoot and root dry weights of the seedlings were measured. The post--nickel mining soils TN, TC, available P, CEC, and exchangeable Ca and Na concentrations decreased by 98%, 93%, 11%, 62%, 85%, and 74%, respectively, in comparison with the natural forest soils. The pH of postmining soil was higher than natural forest soil. Shoot dry weight of F. moluccana seedlings grown in postmining soil was significantly (P
ISSN:1687-9368
1687-9376
DOI:10.1155/2020/8837590