Tianjin Ji County Mountain Former Area Pick Sand Hollow For The Influence Of Ecological Environment Investigation Research

This paper with Tianjin Ji former county mountain area mine jumping pit is research area, is taking mining the distribution of jumping pit of present situation and the information of present situation of type, vegetation type, hydrogeology condition and pollutive source as foundation, through the investigation of open country , combination is indoor to analyse and test , for studying area ecological environment have been affected level and the underground problem of water pollution discuss. The ecological environment of this investigation research result and research area affects more serious, underground water water quality because of mining jumping pit since pollution gets threat, major reason the influence of being sand hollow for soil vegetation greater, now, the most sand hollows is in wasted state or simple reply Ken state, it is serious that vegetation is short of to lose. Since soil structural damage is serious , , base rock naked dew, therefore do not suit farmland recovery. Pick the protection performance damage of sand hollow for underground water greatly, especially in sand hollow expose underground water after, water quality is easy to suffer pollution very much. Now, the pollutive scope of the most sand hollow is not very confined nearby sand hollow and around. Now is caused into sand hollow pollutive underground water with the major contaminant of mineral water is each kind of enterprise to sand hollow emission sewage , stack rubbish etc. not use reasonably to cause, preliminary find out major contaminant is 3-N , C1-, heavy metal and hardness etc., in some underground waters nearby sand hollow contaminant individual index reach IV kind or V kind of water quality, comprehensive appraisement is more bad or extreme difference. At the same time phenol, cyanogen, mercury, chromium and arsenic have Jian happen , with the density of phenol highest reach underground water III kind of standard density, though, absolute density is not high , but has pollutive uptrend. Now in district, pollutive source is more, shallow-layer underground water and north deeply layer mineral water different level suffer pollution, the channel of pollution is relatively complex from way. Water quality is simulated to show , pollute tape development major along current direction, at the same time in lateral on occur proliferation. If not eliminate with measure, is existing to pick the pollutive source of sand hollow, will enlarge further along with the underground scope of water pollution of time that prolongs district.