RESEARCH PROGRESS ON RESPONSE OF PLANT ROOT EXUDATES TO POLLUTION STRESS The regional ecological risk assessment of the Dongting Lake watershed Transfer and transformation of PAHs in the hydrological process of camphor forest ecosystem Characteristics of nitrous oxide (N2O) emission from a headstream in the upper Taihu Lake Basin Identification of critical source areas: an efficient way for agricultural non-point source pollution control Eco-toxicological effects of germanium stress on rice(Oryza sativa L.) and their critical value Water-environment effects of industry structure in Taihu Lake Basin in Jiangsu Province The environmental and economic influence of coal-electricity integration exploitation in the Xilingol League Effects of Pb on growth, heavy metals accumulation and chloroplast ultrastructure of Iris lactea var. Chinensis Study on the Sterilization Methods in Tissue Culture of Italian Ryegrass Seed Explant