Cu and Zn pollution and soil enzyme activities in sewage irrigation area near smeltery

Abstract

Abstract: This paper studied the Cu and Zn status in soil and rice plant as well as the soil enzyme activities in the sewage irrigation area near a smeltery.The results showed that the soils near the smeltery were polluted.The soil total and extractable Cu contents at the distance of 100 m were 182.45 and 81.91 mg穔g^-1,respectively,9.3 and 34 times higher than the control.The Cu concentration in different parts of rice was in order of root>leaf and stem>grain,while the Zn concentration was in order of leaf and stem>root>grain.Zn was more mobile than Cu which was likely to accumulate in rice root.It was considered that root could act as a barrier which retarded the upwards transport of Cu and protected the above ground parts of rice from toxication.The Cu contents of rice stem and leaf had a significant correlation with soil Cu contents in the sewage irrigation area.Among the three test enzymes,urease was the most sensitive one to Cu,and its activity had a significant correlation with soil Cu content.Therefore,it is feasible to use soil urease activity as an indicator of soil Cu pollution in sewage irrigation area near the smeltery.

Key words: Soil-rice system, Heavy metal, Soil enzyme

CLC Number:

WANG Guanglin, WANG Lilong, WANG Yupeng, LIU Dengyi . Cu and Zn pollution and soil enzyme activities in sewage irrigation area near smeltery[J]. Chinese Journal of Applied Ecology, 2005, 16(2): 328-332.

References

[1] Chen H-M(陈怀满), Chen N-C(陈能场), Chen Y-X(陈英旭), et al. 1996. Heaw Mettal Pollution in Soil-Plant System. Beijing:Science Press. 182～192,288～292(in Chinese)
[2] Guan S-Y (关松荫). 1987. Soil Enzymology and Its Research Methods. Beijing:Agricultural Press. 1～46,274～340 (in Chinese)
[3] He W-X(和文祥), Chen H-M(陈会明), Feng G-Y(冯贵颖), et al. 2000. Study on enzyme index in soil pllluted by mercury,chromium and arsenic. Acta Sci Circ(环境科学学报), 20 (3):338～343(in Chinese)
[4] He W-X(和文祥), Zhu M-E(朱多莪), Zhang Y-P(张一平).2000. Recent advance in relationship of soil enzymes and heavy metals. Soil Environ Sci(土壤与环境), 9(2):139～142 (in Chinese)
[5] He W-X(和文祥), Ma A-S(马爱生),Wu Y-J(武永军), et al.2004. Effect of arsenic on soil urease activity. Chin J Appl Ecol (应用生态学报), 15(5):895～898(in Chinese)
[6] Jia J-W(贾继文), Nie J-H(聂俊华), Li X-H(李絮花), et al.2001.Study on the relationship between the soil physical-chemical properties and soil enzymatic activity of plastic greenhouse. J Shandong Agric Univ(Nat Sci)(山东农业大学学报·自然科学版),32(4):427～432 (in Chinese)
[7] Li B-W(李博文), Liu Q-S(刘树庆). 2000. Relations between enzymatic activities and contents of Cadmium, Zinc and Lead in meadow cinnamon soil of heavy metal compound plllution. J Jilin Agric Sci (吉林农业科学), 25 (1):38～41 (in Chinese)
[8] Nanjing Agricultural College. 1980. Soil Agric-Chemical analysis.Beijing:Agricultural Press. 104～227 (in Chinese)
[9] Nanjing Institute of Soil Science, Academia Sinica. 1978. Soil Physical-Chemical Analysis. Shanghai:Shanghai Science and Technology Press. 68～361(in Chinese)
[10] Shi C-Q(史长青). 1995. Effect of heavy metal pollution on paddy soil enzyme activities. Chin J Soil Sci (土壤通报), 26(1):34～35(in Chinese)
[11] Teng Y(滕应),HuangC-Y(黄昌勇),Long J(龙键),et al.2003. Studies on soil enzymatic activities in areas contaminated by tailings from Cu mine. Chin J Appl Ecol (应用生态学报), 14(11):1976～1980 (in Chinese)
[12] Veratraete W, Voets JP. 1977. Soil microbial and biochemical characteristics in relation to soil management and fertility. Soil Biol Biochem, 9:253～258
[13] Wang X(王新), Wu Y-Y(吴燕玉). 1998. Study on absorptive property of different crops to the compound pollution of heavy metals. Agro-Envion Prot (农业环境保护), 17(5):193～196(in Chinese)
[14] Wang Y-B(王友保), Zhang L(张莉), Liu D-Y(刘登义). 2003.Relationship among soil enzyme activities, vegetation state, and soil chemical properties of coal cinder yard. Chin J Appl Ecol (应用生态学报), 14(1):110～112(in Chinese)
[15] Wang X-R (王晓蓉). 1998. Environmental Chemistry. Nanjing:Nanjing University Press. 225(in Chinese)
[16] Xu J-L(许嘉琳), Yang J-R(杨居荣). 1995. Heavy Metals in Land Ecosystem. Beijing:China Environmental Science Press. 157～206(in Chinese)
[17] Yin J(尹君),Gao R-T(高如泰),Liu W-J(刘文菊),et al.1999. Soil enzymatic activities and Cd pollution assessment in soil.Agro-Environ Prot (农业环境保护), 18 (3):130～132 (in Chinese)
[18] Yuan G-L(袁光林), Ma R-X(马瑞霞), Liu X-F(刘绣芬), et al.1998. Effects of allelochemicals on uricase activity. Environ Sci (环境科学), 19(2):55～57(in Chinese)
[19] Zhang N-M(张乃明). 1999. The present situation and prospect of research on heavy melt pollution in soil-plant systems. Adv Environ Sci(环境科学进民展),8(4):30～33(in Chinese)
[20] Zhou L-K(周礼恺), Zhang Z-M(张志明), Cao C-J(曹承锦), et al. 1985. Heavy metal pollution and enzymatic activity of soil. Acta Sci Circ(环境科学学报), 5(2):176～183(in Chinese)
[21] Zhou Q-X(周启星). 1995. Ecology of Combined Pollution. Beijing:China Environmental Science Press. 5～6(in Chinese)
[22] Zu Y-Q(祖艳群), Li Y(李元).2003. Phytoremediation technology of soil polluted by heavy metals. Yunnan Environ Sci(云南环境科学), 22(supp.):58～61(in Chinese)