Studi Erosi Tanah pada Areal Penelitian Tanam Rumpang di PT Intracawood Manufacturing

Abstract

Suatu fenomena alam yang mengakibatkan pengikisan tanah disebabkan faktor-faktor diantaranya iklim, topografi, vegetasi, tanah, dan manusia. Tanam Rumpang Tebang Rumpang (TRTR) merupakan salah satu sistem Silvikultur dengan teknik meniru proses suksesi dan permudaan alam di hutan alam yang masih terus dikembangkan. TRTR merupakan upaya yang dapat diterapkan untuk mengembalikan produktivitas areal hutan alam yang tidak berpotensi dan mengembalikan fungsi lahan hutan yang mengalami degradasi. Penelitian ini bertujuan untuk mengetahui tingkat erosi tanah dengan sistem TRTR pada kondisi areal hutan alam, jalur tebas, dan jalur tanam. Hasil penelitian menunjukan bahwa areal blok tanpa perlakuan memiliki nilai berat tanah tererosi terbesar. Hasil uji statistik menunjukan bahwa besarnya erosi di blok areal rumpang yang diberi perlakuan tidak berbeda nyata terhadap besarnya erosi di blok areal rumpang tanpa perlakuan, besarnya erosi di blok areal rumpang yang diberi perlakuan tidak berbeda nyata terhadap besarnya erosi di hutan alam, dan besarnya erosi di blok areal rumpang tanpa perlakuan berbeda nyata terhadap besarnya erosi di hutan alam.

A natural phenomenon that results in soil erosion due to factors including climate, topography, vegetation, soil, and humans. Gap Planting and Gap Cutting (TRTR) is one of the silviculture systems using techniques that mimic the process of succession and natural regeneration in natural forests that are still being developed. TRTR is an effort that can be applied to restore the productivity of natural forest areas that have no potential and restore the function of degraded forest land. This study aims to determine the level of soil erosion with the TRTR system in the condition of natural forest areas, slash lanes, and planting lanes. The results showed that the block area without treatment had the largest eroded soil weight value. Statistical test results showed that the amount of erosion in the treated block was not significantly different from the amount of erosion in the block area without treatment, the amount of erosion in the treated block area was not significantly different from the amount of erosion in the natural forest, and the amount of erosion in the block area without treatment was significantly different from the amount of erosion in the natural forest.