Fertility, heavy metal pollution characteristics of river sediment and the risk assessment in Hainan Island
LIU Yongjie, HU Zhenhua, LIU Yongbing, LI Xiang, WANG Jiajia, LUO Nan, HONG Wenliang
1. Forestry College of Shanxi Agricultural University, 030801, Taigu, Shanxi, China; 2. Environmental Protection Research Institute of Light Industry, Beijing Key Lab of Industrial Contamination and Remediation, 100089, Beijing, China; 3. Haikou City Major Land Arrangement Project Leading Group Office, 570312, Haikou, China
Abstract：[Background] It is pointed in the governmental document of "Water Pollution Control Action Plan" that the water sediment after dredging and disposal, could directly eliminate the phenomenon of black smelly water. The dredged sediment utilization is the main way of land use, ecological restoration materials, construction materials, sewage treatment, etc. Hainan is a unique volcanic tropical island in China, nutrients and heavy metals in sediments formed by unique soil parent material have become the academic research priorities, and the reuse of river sediment can solve the problem of insufficient exogenous soil in land ecological remediation project. Characterization and evaluation is an important prerequisite for sediment resource utilization. In order to understand the characteristics of river sediment in the tropical basalt area of Hainan Island and the possibility of resource utilization, comprehensive and detailed understanding of river sediment heavy metal pollution status, nutrient level and ecological risk, for the river sediment dredging and subsequent resource disposal, is of great significance. [Methods] The typical river pond Tangliutang was selected as the research object, and the typical section distribution point in August 2015 was used. The heavy metals and fertility of 52 sediment samples were tested and evaluated by different evaluation methods. Data was statistically processed by SPSS 22. [Results] 1) According to the index of soil nutrient grading in the second national soil survey, the total nitrogen content in the sediment reached grade Ⅰ, the contents of total phosphorus, total potassium and organic matter were in grade Ⅱ, and the CEC (Cation Exchange Capacity) reached grade Ⅳ. The gray relational index of each fertility index was higher than that in the control area, which indicated that the nutrient of river sediment was fine. 2) Standard "Environmental Quality Evaluation Standards for Farmland of Edible Agricultural Products" (HJ 332-2006) was used to evaluate the heavy metal pollution of the sediment. The main pollutants were Cd and Hg, Cd exceeded the standard by 14% with 65.4% samples, and Hg exceeded the standard by 11% with 59.6% samples. 3) The evaluation results of geo-accumulative pollution index and comprehensive geo-accumulative pollution index (Icgeo) showed that the main pollutants in the river sediment were Cd and Hg, while the river sediment was moderate pollution. 4) The evaluation of potential ecological risk index showed that Hg was the most important potential ecological risk factor. The sediment was at the level of "slight ecological hazard" according to comprehensive potential ecological risk index ERI. [Conclusions] Under the situation of above results. Whether or not the sediment can be applied in land reuse is up to each practical case, for instance, it can be used for forest restoration but not for rice planting. This study provides a scientific basis and technical support for the ecological reconstruction and soil resource utilization of dredged sediment in the major land rehabilitation project of Nandu River ndu River in Hainan Province.
刘永杰1, 胡振华1, 刘永兵2, 李翔2, 王佳佳2, 罗楠2, 洪文良3. 海南岛河流底泥肥力和重金属污染特征及其风险评价[J]. 中国水土保持科学, 2017, 15(3): 131-138.
LIU Yongjie, HU Zhenhua, LIU Yongbing, LI Xiang, WANG Jiajia, LUO Nan, HONG Wenliang. Fertility, heavy metal pollution characteristics of river sediment and the risk assessment in Hainan Island. SSWC, 2017, 15(3): 131-138.
KORENTAJER L. Review of the agricultural use of sewage sludge. Benefits and potential hazards[J]. Research, 1991, 17(3):189.
[2]
周立祥, 胡霭堂, 胡忠明. 厌氧消化污泥化学组成及其环境化学性质[J]. 植物营养与肥料学报, 1997, 3(2):176. ZHOU Lixiang, HU Aitang, HU Zhongming. The composition and characteristics of anaerobically digested sludge[J]. Plant Nutrition and Fertilize Science, 1997,3(2):176.
[3]
刘永兵, 李翔, 刘永杰, 等. 土地整治中底泥质耕作层土壤的构建方法及应用效果[J]. 农业工程学报, 2015, 31(9):242. LIU Yongbing, LI Xiang, LIUYongjie,et al. Construction method and application effect on tillage layer soil by sediment in land consolidation engineering[J]. Transactions of the Chinese Society of Agricultural Engineering,2015, 31(9):242.
[4]
薄录吉, 王德建, 颜晓, 等. 底泥环保资源化利用及其风险评价[J]. 土壤通报, 2013, 44(4):1017. BO Luji,WANG Dejian,YAN Xiao,et al. Environmental resource utilization and risk assessment of dredged sediments:a review[J].Chinese Journal of Soil Science,2013,44(4):1017.
[5]
李翔, 刘永兵, 程言君, 等. 稳定化处理对底泥利用后土壤重金属形态及蔬菜重金属含的影响[J]. 农业环境科学学报, 2016, 35(7):1278. LI Xiang,LIU Yongbing,CHENG Yanjun,et al. Effects of stabilization on soil heavy metal fractions and vegetable heavy metal content under amendment with dredged river sediments[J]. Journal of Agro-Environment Science,2016,35(7):1278.
[6]
刘永兵, 贾斌, 李翔, 等. 海南省南渡江新坡河塘底泥养分状况及重金属污染评价[J]. 农业工程学报, 2013, 29(3):213. LIU Yongbing,JIA Bin,LI Xiang,et al. Characteristic of nutrients and evaluation of heavy metal contamination on sediments among Xinpo pond, Nandu river in Hainan province[J].Transactions of the Chinese Society of Agricultural Engineering,2013,29(3):213.
[7]
张文慧, 许秋瑾, 胡小贞,等. 山美水库沉积物重金属污染状况及风险评价[J]. 环境科学研究,2016,29(7):1006. ZHANG Wenhui,XU Qiujin,HU Xiaozhen,et al. Pollution and potential ecological risk of heavy metals in sediment of Shanmei reservoir[J]. Research of Environmental Sciences, 2016,29(7):1006.
[8]
MULLER G. Index of geoaccumulation in sediments of the Rhine River[J]. Geojournal, 1969, 2(3):108.
[9]
HAKANSON L. An ecological risk index for aquatic pollution control:a sedimentological approach[J]. Water Research, 1980, 14(8):975.
[10]
霍文毅, 黄风茹. 河流颗粒物重金属污染评价方法比较研究[J]. 地理科学, 1997, 17(1):81. HUO Wenyi, HUANG Fengru. Comparative study on evaluation method of heavy metals pollution in river particulate matter[J].Scientia Geographica Sinica,1997,17(1):81.
[11]
滕彦国, 庹先国, 倪师军, 等. 应用地质累积指数评价沉积物中重金属污染:选择地球学背景的影响[J]. 环境科学与技术, 2002, 25(2):7. TENG Yanguo,TUO Xianguo, NI Shijun,et al. Applying geo-accumulation index to assess heavy metal pollution in sediment:influence of different geochemical background[J].Environmental Science and Technology, 2002,25(2):7.
[12]
王天阳, 王国祥. 昆承湖沉积物中重金属及营养元素的污染特征[J]. 环境科学研究, 2008, 21(1):51. WANG Tianyang,WANG Guoxiang. Research on pollution characteristics of nutriment elements and heavy metals in sediment of Lake Kuncheng[J]. Research of Environmental Sciences, 2008,21(1):51.
[13]
徐争启, 倪师军, 庹先国, 等. 潜在生态危害指数法评价中重金属毒性系数计算[J]. 环境科学与技术, 2008, 31(2):112. XU Zhengqi,NI Shijun,TUO Xianguo,et al. Calculation of heavy metals' toxicity coefficient in the evaluation of potential ecological risk index[J].Environmental Science and Technology, 2008,31(2):112.
[14]
PENG J F, SONG Y H, PENG Y, et al. The remediation of heavy metals contaminated sediment[J]. Journal of Hazardous Materials, 2009, 161(2-3):633.
[15]
成刚, 张远, 高宏, 等. 白龟山水库规划区污染特征及潜在生态风险评价[J]. 环境科学研究, 2010, 23(4):452. CHENG Gang, ZHANG Yuan, GAO Hong,et al. Contamination characteristics and potential ecological risk assessment of planning areas in Baiguishan Reservior[J]. Research of Environmental Sciences, 2010,23(4):452.
[16]
向志民, 何敏. 蒿类半灌木牧草质量分析[J]. 草业科学, 2000, 17(1):13. XIANG Zhiming, HE Min. Quantitative analysis of sagebrush[J].Pratacultural Science, 2000,17(1):13.
[17]
中国环境监测总站.中国土壤元素背景值[M].北京:中国环境科学出版社,1990:1. China Environmental Monitoring Station. Chinese soil element background value[M]. Beijing:China Environmental Science Press, 1990:1.
[18]
王兴仁, 陈新平, 张福锁, 等. 施肥模型在我国推荐施肥中的应用[J]. 植物营养与肥料学报, 1998, 4(1):67. WANG Xingren, CHEN Xinping, ZHANG Fusuo, et al.Application of fertilization model for fertilizer recommendation in China[J]. Plant Nutrition and Fertilizer Science,1998,4(1):67.
[19]
范青慈. 青海莎草科植物主要几种牧草质量分析[J]. 草业与畜牧, 2002(4):37. FAN Qingci. Quality analysis of several main grass species in Cyperaceae from Qinghai[J].Prataculture And Animal Husbandry, 2002(4):37.
[20]
GAILEY F A, LLOYD O L L. Grass and surface soils as monitors of atmospheric metal pollution in Central Scotland[J]. Water, Air, & Soil Pollution, 1985, 24(1):1.
[21]
高宏岩, 施海燕, 王剑红, 等. 甘肃禾本科饲用植物11个属的牧草质量分析:简报[J].草业学报, 2008, 17(1):140. GAO Hongyan, SHI Haiyan, WANG Jianzhong, et al. Quantitative analysis of 11 genera of Gramineae forage plants in Gansu[J].Acta Prataculturae Sinica,2008,17(1):140.
[22]
赵业婷, 常庆瑞, 李志鹏, 等. 1983-2009年西安市郊区耕地土壤有机质空间特征与变化[J]. 农业工程学报, 2013, 29(2):132. ZHAO Yeting,CHANG Qingrui,LI Zhipeng, et al.Spatial characteristics and changes of soil organic matter for cultivated land in suburban area of Xi'an from 1983 to 2009[J]. Transactions of the Chinese Society of Agricultural Engineering,2013,29(2):132.
2017, Vol. 15 
