Effect of acid soil properties on soil erosion at a dumping site in an open-pit coal mine, Indonesia

H. Shimada, S. Matsumoto, A. Hamanaka, T. Sasaoka, G. J. Kusuma

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Soil erosion which easily progresses due to heavy rain in the tropical climate is a serious issue for mined-land reclamation in Indonesia since it causes plant death. Moreover, acidifi-cation of soils occurs because of sulfide minerals in mining area. The physical properties of soils are changed by the acidification of soils according to previous studies. Thus, since the erosion rate of soils greatly depends on physical characteristics of soils, the relation between the change of physical properties of soils caused by soil acidification and soil erosion has to be considered for erosion control in mining area. In this study, physical properties of the soil samples in which the soil-pH was adjusted with H2SO4 were measured, followed by the artificial rainfall test with the samples in order to understand the effect of acidification of soils on erosion rate. The results showed that the decrease of cohesive strength among soil particles caused by the decline of consistency limit with soil acidification resulted in the increase of erosion rate. Hence, soil acidi-fication should also be prevented with the measures against soil erosion for successful mined-land reclamation. Based on DPSIR model and considered previous studies and realities, this essay chooses a typical case, Wu’an, in order to build an ecological security evaluation system. With reference to relevant standards, eco-logical security level was determined. There is a want of developmental driver of urban system, pressure of habitat overload and obviously insufficient social response. In order to get out of “resource curse”, Wu’an should make the innovation-driven improvement and increase the investment in environmental protection.

Original languageEnglish
Title of host publicationLand Reclamation in Ecological Fragile Areas - Proceedings of the 2nd International Symposium on Land Reclamation and Ecological Restoration, LRER 2017
EditorsZhenqi Hu
PublisherCRC Press/Balkema
Pages239-244
Number of pages6
ISBN (Print)9781138051034
DOIs
Publication statusPublished - Jan 1 2017
Externally publishedYes
Event2nd International Symposium on Land Reclamation and Ecological Restoration, LRER 2017 - Xi’an, China
Duration: Oct 20 2017Oct 23 2017

Publication series

NameLand Reclamation in Ecological Fragile Areas - Proceedings of the 2nd International Symposium on Land Reclamation and Ecological Restoration, LRER 2017

Other

Other2nd International Symposium on Land Reclamation and Ecological Restoration, LRER 2017
CountryChina
CityXi’an
Period10/20/1710/23/17

All Science Journal Classification (ASJC) codes

  • Management, Monitoring, Policy and Law
  • Environmental Engineering
  • Pollution
  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Shimada, H., Matsumoto, S., Hamanaka, A., Sasaoka, T., & Kusuma, G. J. (2017). Effect of acid soil properties on soil erosion at a dumping site in an open-pit coal mine, Indonesia. In Z. Hu (Ed.), Land Reclamation in Ecological Fragile Areas - Proceedings of the 2nd International Symposium on Land Reclamation and Ecological Restoration, LRER 2017 (pp. 239-244). (Land Reclamation in Ecological Fragile Areas - Proceedings of the 2nd International Symposium on Land Reclamation and Ecological Restoration, LRER 2017). CRC Press/Balkema. https://doi.org/10.1201/9781315166582-51