%0 Journal Article
%T An Evaluation of the Effects of Rehabilitation Practiced in Coal Mining Spoils in Korea: 2. An Evaluation Based on the Physicochemical Properties of Soil
%A Lee
%A Chang-Seok
%A Yong-Chan Cho
%A Hyun-Chul Shin
%A Seon-Mi Lee
%J Journal of Ecology and Field Biology
%D 2008
%I 
%X The effectiveness of rehabilitation programs for coal mining spoils in Samcheok, Jeongsun, andMungyung were evaluated based on the physicochemical properties of soil in the rehabilitated areas. These spoilswere reclaimed by introducing plants such as black locust (Robinia pseudoacacia), pitch pine (Pinus rigida), birch(Betula platyphylla var. japonica), alder (Alnus hirsuta), bush clover (Lespedeza cyrtobotrya), and grass (Loliumperenne) in planting beds covered with forest soil. In the surface soil, the pH, organic matter, total N, availableP, and exchangeable Ca showed significant changes over the years after reclamation. The pH and exchangeableCa content decreased exponentially over time, whereas organic matter increased linearly and total N and availableP increased exponentially. Changes in the physicochemical properties of subsurface soils displayed a differentpattern. There were significant changes over time in the organic matter, available P, and exchangeable Ca andMg contents of the soil. Organic matter increased logarithmically with years since rehabilitation and available Pincreased exponentially. Meanwhile, exchangeable Ca decreased exponentially, and Mg decreased logarithmically.The changes in the subsurface soil were not as dramatic as those in the surface soil. This result suggests thatthe ameliorating effects of the establishment and growth of plants more pronounced on the surface soil layer.Stand ordination data showed different relationships with time since rehabilitation in the early and later stages ofthe rehabilitation process. In the early stages of rehabilitation, stands tended to be arranged in the order ofreclamation age. However, in the later stages, there was not a clear relationship between reclamation age andvegetation characteristics. This result suggests that soil amelioration is required for the early stages, after whichan autogenic effect becomes more prominent as the vegetation becomes better established.
%K Autogenic effect
%K Coal mining spoils
%K Physicochemical properties
%K Rehabilitation
%K Soil
%U http://ocean.kisti.re.kr/is/mv/showPDF_ocean.jsp?method=download&pYear=2008&koi=KISTI1.1003%2FJNL.JAKO200814364028075&sp=23&CN1=JAKO200814364028075&poid=kesk&kojic=STHHCL&sVnc=v31n1&sFree=