绿色科技
綠色科技
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LVSE DASHIJIU
2012年
11期
175-177
,共3页
根际环境%污染土壤%根系%根系分泌物%细菌%茵根真菌%土壤动物
根際環境%汙染土壤%根繫%根繫分泌物%細菌%茵根真菌%土壤動物
근제배경%오염토양%근계%근계분비물%세균%인근진균%토양동물
rhizosphere environment%contaminated soil%root%root secretions%bacteria%mycorrhizal fungi%soilfauna177
指出了根际环境是根系和土壤相互耦合的生态和环境界面,对根际环境在污染修复过程中的研究成为当前土壤学和土壤生态学研究中的一个重要课题。总结了根际环境内根系和根系分泌物对污染土壤中重金属,有机污染物的吸收、降解、固定的生态功能;根际环境内的细菌对污染土壤中重金属,有机污染物的吸附、氧化一还原以及趋化性作用;根际环境内的菌根真菌对污染土壤中重金属,有机污染物的吸收、屏障及螯合作用;根际环境内的土壤动物对污染土壤中重金属,有机污染物的破碎、分解、消化和富集作用,并探讨了应该加深的研究方向。
指齣瞭根際環境是根繫和土壤相互耦閤的生態和環境界麵,對根際環境在汙染脩複過程中的研究成為噹前土壤學和土壤生態學研究中的一箇重要課題。總結瞭根際環境內根繫和根繫分泌物對汙染土壤中重金屬,有機汙染物的吸收、降解、固定的生態功能;根際環境內的細菌對汙染土壤中重金屬,有機汙染物的吸附、氧化一還原以及趨化性作用;根際環境內的菌根真菌對汙染土壤中重金屬,有機汙染物的吸收、屏障及螯閤作用;根際環境內的土壤動物對汙染土壤中重金屬,有機汙染物的破碎、分解、消化和富集作用,併探討瞭應該加深的研究方嚮。
지출료근제배경시근계화토양상호우합적생태화배경계면,대근제배경재오염수복과정중적연구성위당전토양학화토양생태학연구중적일개중요과제。총결료근제배경내근계화근계분비물대오염토양중중금속,유궤오염물적흡수、강해、고정적생태공능;근제배경내적세균대오염토양중중금속,유궤오염물적흡부、양화일환원이급추화성작용;근제배경내적균근진균대오염토양중중금속,유궤오염물적흡수、병장급오합작용;근제배경내적토양동물대오염토양중중금속,유궤오염물적파쇄、분해、소화화부집작용,병탐토료응해가심적연구방향。
The rhizosphere is an important environmental interface, and plays an extremely important role in the bioremediation of contaminated soil, thus,it become a hot topic in the current soil and environmental sci- ence. This article firstly discusses the absorption, degradation, fixation ecological functions of plant roots and root exudates to remedy contaminated soils, accumulate and solidify heavy metals, and absorb and degrade or- ganic pollutants in rhizosphere. And then it analyzes the adsorption, oxidation--reduction and chemotaxis functions of bacteria to remedy the heavy mentals and organic pollutants in contaminated soils in the rhizo- sphere environment. Moreover,it also introduces the absorption barriers and chelation functions of mycorrhi- zal fungi in the rhizosphere environment. Finally,it discusses the crushing, decomposition, digestion and en- richment functions of the soil fauna in the rhizosphere. Besides, the article also points out the directions of fu- ture research.