Researching Of Effective Land Reclamation Model And Effect Of Haizhou Strip Mine Waste Dump

In order to manage and improve mining area’s bad ecology environment effectively and then use abandoned soil resource deeply, this article make Haizhou opencast waste dump as experimental zone, through analysis of prediction of water and soil loss; dividing of site type and site quality; engineering reclamation matching technology; key technology and model of ecological remediation; evaluation of reclamation effect, our conclusions are that:(1) Bring up a series of controlling technology according to opencast waste dump slope, these technologies are consist of designing of slope shaping; management of slope; arrangement of draining system; work of slope stability. Bring up three pieces of advice according to opencast waste dump engineering reclamation, they are plane management engineering; soil dressing engineering; water and soil conservation biology engineering.(2)Conclude two kinds of practical improvement technologies according to ecological remediation of waste dump, they are plane immature soil curing quickly and slope rock weathering quickly. This article also build three models of ecological remediation which can improve regeneration capacity and stability of mining area ecology system, they are arrangement of eternal forest land vegetation; arrangement model of farmland vegetation and arrangement model of rock and soil slope vegetation. (3)This article also bring up opencast waste dump soil reclamation synthetical technology matching system which can suitable to opencast environment perfectly.(4)The researching show that quality of soil which have process reclamation is more and more good by time move, after five years the soil almost as good the soil which never experienced fail process, there will have different effect arising from different plants after reclamation, pasture and aspen are good for improvement of soil quality but cultivating and needle-leaved trees are not. (5)This article also build evaluation index system of evaluation of opencast reclamation soil quality, and evaluate opencast reclamation soil quality according to this system of index. The index system consists nine items which come from chemical and physical character of soil. In process of evaluation this article use method of fuzzy mathematics to compute membership of every index and use index pulsing method to compute synthetical index of soil then get quality of soil. (6)This article also build short and long time soil reclamation using technology system and goal through researching of reclamation effect of opencast waste dump and this achievement should basis of realization of mining area sustainable development.