The potency of Cassia siamea as phytostabilization in post-mining land reclamation

Abstract

Revegetation for reclamation is a strategic effort to overcome the negative impacts of coal mining. The growth of reclaimed vegetation has a positive impact in reducing soil density so that it is suitable for the growth of food plants, and also can increase the content of soil organic matter. One of the efforts to restore the function of post-mining land is by planting legumes, one of the species is Cassia siamea (C. siamea). The method used is a literature study. Literature searches were using the Google Scholar, Research Gate, and Science Direct databases. From the results of a literature search, C. siamea can accumulate heavy metals as phytostabilization by reduces the mobility and presence of pollutants in the soil by accumulating the metallic trace elements (MTE) into the roots. These plants produce proline, a substance that is produced when drought occurs so that the inside of the plant does not suffer from differences in water concentrations. C. siamea can restore and improve the physical and chemical properties of the soil to become more fertile and rich in nutrients with Legume-Rhizobia Symbiosis and also has a high RMSI (> 0.500), this value is preferable for reclamation of post-mining land.