Method for comprehensively configuring mountain, river, forest, field, lake and grassland in eolian sand zone by considering mining subsidence

Abstract

The invention discloses a method for comprehensively configuring mountain, river, forest, field, lake and grassland in an eolian sand zone by considering mining subsidence; the method is characterizedby firstly, constructing a related element relationship of a mountain-river-forest-field-lake-grassland life community in the aeolian sand zone based on a niche theory; secondly, comprehensively configuring mountain, river, forest, field, lake and grassland in the eolian sand zone under mining subsidence, to be specific, (1) predicting the influence of mining subsidence on terrain, and (2) predicting the influence of mining subsidence on underground phreatic level; and carrying out the following specific steps of (1) transplanting trees, (2) stripping and utilizing a soil seed bank, (3) pretreating sunken wetlands, (4) restoring vegetation, and (5) developing arable lands. According to the method, distribution law of mining subsidence in the aeolian sand zone is taken as basis, the nichetheory is taken as guidance, the desertification control is taken as a purpose, the ecological elements of mountain, river, forest, field, lake and grassland in the control zone are optimally configured, and the improvement and promotion on the ecological environment of a coal mining subsidence land in the aeolian sand zone are enhanced. The method is applicable to the treatment of damaged lands caused by coal seam mining of Salawusu formation aquifers on the surface in Maowusu sandy land regions in northern Shaanxi.

Description

technical field [0001] The invention relates to a new method for controlling coal mining subsidence in aeolian sand area in the west. Background technique [0002] With the westward shift of my country's energy resource strategy, the western region is becoming an important coal production base. A large number of coal resources are located in the aeolian sand landform type area. The ecological environment in the aeolian sandy area is fragile, and the surface subsidence caused by coal mining will lead to changes in the surrounding shallow soil water, which will affect the growth of vegetation and intensify the desertification process. Over the years, the treatment of coal mining subsidence areas has mainly focused on the damaged local areas, treating the head when it hurts and treating the foot when the foot hurts, lacking a systematic view. This model obviously cannot meet the requirements of "overall protection, system repair, and comprehensive management". The management...

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