Study on the Inhibitive Potential of PAM Against Water Bodies Eutrophication
The intraannual distribution and interannual variation of total nitrogen (TN), total phosphorus (TP), chlorophyll a (chla), permanganate index (CODMn) and transparency (SD) measured at five major monitoring points in Changshouhu Lake area indicate that the water body eutrophication phenomenon there has the tendency to exacerbate. At the same time, the soil erosion and nutrition loss tests with and without PAM treatment carried out at Linfeng Town inside Changshouhu Lake area indicate that PAM can effectively inhibit soil and soil nutrition loss, and compared with control plots where no PAM is applied, the treatment with PAM decreases the degree of soil erosion, nitrogen loss and phosphorus loss for 46.1％, 24.3％ and 21.6％ respectively. Finally, through the comparison between the estimated comprehensive nutritional index under extended PAM application conditions and the calculated index under actually measured conditions, we concluded that PAM has strong inhibitive potential against eutrophication of water bodies. However, the collection of data needs further improvement, and the research to PAM under different spatial scales should be carried out, so as to better quantify and evaluate the control effect of PAM on water bodies eutrophication.
PAM eutrophication nitrogen (N) phosphorus (P) soil erosion nutrient loss
X. Y. Chen J. Zhou C. F. Wei W. Q. Chai C. Y. Miao
College of Resources and Environment Southwest University Chongqing 400716, China School of Geography Beijing Normal University Beijing 100875, China
国际会议
上海
英文
3065-3070
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）