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- W2369219637 abstract "Ground subsidence and its effects on environment have been the core content of ecological and environmental assessment in coal mining area. Although there are researches on these topics, the results and methods show some uncertainties and few involves forecast analysis. This paper forecasts the status of ground subsidence using ground subsidence forecasting mathematical model and classifies the heavy or slight influencing areas based on the degree of destructions of landscape. Based on remote sensing (RS) and geographical information system (GIS), this paper overlays the existing state map of the vegetation landscape and the map of the influenced areas. The influence of mining on environment is analyzed by comparison of the landscape patterns before and after ground subsidence in Dongda Mine of Jincheng, Shanxi Province. The results showed that: 1) in heavy influencing areas, there are some collapse or crack structure such as basin, saddle and wave etc. Soil erosion leads to obvious change in spatial distribution of soil nutrients. The environment near the collapse or crack areas worsens and becomes the source of nutrient loss. It is very difficult for the vegetation to recover in these areas. In nutrient_rich areas, the vegetation succession performs rapidly. Proper artificial disturbance can accelerate the recovery paces of the regional environment. 2) After the ground subsidence, the vegetation landscape is broken up and isolated severely. With the changes of landform and soil in space, the vegetation begins to perform a new round of succession. Because the degraded vegetation type, Bothrichloa ischaemum_Thymus mongolicus community, will decrease, and the internal ecological function of the sub_dominance landscape is not quite affected, it is helpful to biodiversity and sub_dominance landscape succession. However, there is a linear relationship between the isolation of heavy influencing areas and the resulting patches, the obstacle for species to move from one patch to another in heavy influencing areas is obvious. Therefore, we should place more emphases on environmental conservation in coal mining area. On this basis, it is feasible to guide vegetation succession along the direction of Bothrichloa ischaemum_Thymus mongolicus community-Bothrichloa ischaemum_Themeda japonica community-bush-broad_leaved forest." @default.
- W2369219637 created "2016-06-24" @default.
- W2369219637 creator A5033184348 @default.
- W2369219637 date "2006-01-01" @default.
- W2369219637 modified "2023-09-25" @default.
- W2369219637 title "ASSESSMENT OF SUBSIDENCE IMPACT ON VEGETATION LANDSCAPE IN COAL MINING AREA—A CASE STUDY OF DONGDA MINE IN JINCHENG CITY, SHANXI PROVINCE" @default.
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