XIV WORLD FORESTRY CONGRESS, Durban, South Africa, 7-11 September 2015 Logged over forest recovery projection based on standing stock and soil physical aspects Agus Setiawan 1 , Endang Suhendang 2 , Farida Herry Susanty 3 1 Lecturer at Regional Education and Training Center in Samarinda, agussetiawan.bdksmd@gmail.com 2 Lecturer at Bogor Agricultural University, e_suhendang@yahoo.com 3 Researcher at Dipterocarps Research Center, fhususanty@gmail.com Abstract The development of logged stands recovery will lead to stability conditions stands in line with the succession process at all times. The time required will vary depending on the characteristics of the initial stand, the intensity of disturbance and stand dynamics based on the ability of biological forest itself. The purpose of this research is to determine the projection of logged over of natural forests recovery by the ability of the forest itself. They are standing stock and the soil’s physical aspects. The research was conducted on the concession area in East Kutai Regency, East Kalimantan, Indonesia. Data collecting for stands based on census inventory with diameter limit 10 cm that conducted by build temporary plots covering such data: species and diameter/circumference at breast height. Measurement of soil physical data based on penetration resistance using a pocket penetrometer and soil sample cylinder at the landing site, primary skidding trails and secondary skidding trails. Data collection for the stand and soil conditions covering area condition of 4, 8 and 26 years after logging and primary forest. Based on regression analysis, the projected recovery of logged-over forest based on conditions close to primary forest. The projection of recovery based stand density aspect was at 28 years after logging, while based on basal area aspects required at 46 years. Projected recovery penetration resistance on landing requires a period of 27 years, whereas the primary skid trails require 26 years as well as the secondary skid trails require a shorter period of 24 years after logging. Stand condition and soil’s physical at the logged over forest have a different tendency time required to recover or to be close to the primary forest conditions, so its implicated the need of silviculture technique, especially to accelerate the recovery of stand on logged forest. Keywords: recovery, density, basal area, petenetration resistance, logged over Introduction, scope and main objectives Logging activities in tropical forests, although only a few trees that be harvested, but its impact will be widespread for the forest, not only for the stand but also for the environment (Whitmore 1990). Some elements of the forest is changing after the logging, include the canopy structure, composition of the standing stock, and the rate of mortality and the rate of growth (Silva et al. 1995). After the logging, forest stay at the vary in structure, stand density, the rate of mortality and the rate of ingrowth. These aspects are the main input variables in various population analysis of forest stands and in describing the dynamics of tropical forests (Lewis et al. 2004). Indrawan (2000) said that logging activities will result a change in the balance of forest ecosystems, so directly and indirectly with these changes will affect the structure and species composition of the forest stand. Forest recovery after logging activities will take place gradually through the process of secondary succession. Smith and Nichols (2005) said that the recovery growth of forest stands running over time. Further, be said that this forest recovery process may not be able to achieve the same condition as the original forest conditions, but at least will be achieved the forest stands that in a equilibrium dynamic with its environment. Tropical forest after logging operations will able to recover to the