[1]黄顺生,许伟伟,何培良,等.江苏省淮安市典型湿地底泥营养盐分布特征及污染评价[J].华东地质,2023,44(03):323-332.[doi:10.16788/j.hddz.32-1865/P.2023.03.008]
　HUANG Shunsheng,XU Weiwei,HE Peiliang,et al.Distribution characteristics and pollution evaluation of nutrient salts in typical wetland sediment in Huai’an, Jiangsu Province[J].East China Geology,2023,44(03):323-332.[doi:10.16788/j.hddz.32-1865/P.2023.03.008]
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江苏省淮安市典型湿地底泥营养盐分布特征及污染评价()
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《华东地质》[ISSN:2096-1871/CN:32-1865/P]

卷:
44
期数:
2023年03期
页码:
323-332
栏目:
长江经济带资源与环境专辑
出版日期:
2023-09-28

文章信息/Info

Title:
Distribution characteristics and pollution evaluation of nutrient salts in typical wetland sediment in Huai’an, Jiangsu Province
作者:
黄顺生1; 2;  许伟伟1; 2;  何培良3;  周强1; 2;  李文博1; 2;  贺新星1; 2
1. 自然资源部国土(耕地)生态监测与修复工程技术创新中心, 江苏 南京 210018;
2. 江苏省地质调查研究院, 江苏 南京 210018;
3. 河北省地质工程勘查院, 河北 保定 071051
Author(s):
HUANG Shunsheng1; 2;  XU Weiwei1; 2;  HE Peiliang3;  ZHOU Qiang1; 2;  LI Wenbo1; 2;  HE Xinxing1; 2
1. Technology Innovation Center for Ecological Monitoring & Restoration Project on Land(Arable), Ministry of Natural Resources, Nanjing 210018 Jiangsu, China;
2. Geological Survey of Jiangsu Province, Nanjing 210018 Jiangsu, China;
3. Hebei Geological Engineering Exploration Institute, Baoding 071051 Hebei, China
关键词:
湿地底泥; 营养盐; 污染评价; 江苏淮安
Keywords:
wetland sediment; nutrient salts; pollution evaluation; Huai’an;  Jiangsu Province
分类号:
X82X524
DOI:
10.16788/j.hddz.32-1865/P.2023.03.008
摘要:
江苏淮安具有丰富的湿地资源。文章基于区内典型湿地底泥调查结果,开展营养盐含量特征及污染评价研究。结果表明:湿地底泥总氮、总磷、有机质含量分别为0.26~6.51 g/kg、0.36~3.98 g/kg、0.52％~10.17％,具有较大变异性;总体来看,公园池塘、湖泊底泥的营养盐含量最高,沟渠、水产养殖场底泥中营养盐含量次之,河流水系沉积物中营养盐含量最低。湿地底泥有机碳、总氮、总磷含量之间均呈显著正相关,反映它们的来源、迁移转换过程具有一定的相似性。其中,湖泊底泥C/N平均值(8.6)较小,有机物主要来源于湖泊内水生藻类植物;公园池塘、河流、沟渠、水产养殖场底泥具有较大的C/N平均值(9.9~11.9),有机物来源主要受陆源物质影响。底泥中有机氮、有机指数和污染指数的评价结果显示,研究区底泥受到不同程度的污染,成因与区内畜禽养殖、农田施肥等农业活动密切相关。建议推进研究区畜禽养殖污染和粪污资源化利用,实施科学施肥,减少化肥使用量。
Abstract:
There is abundant wetland resource in Huai’an, Jiangsu Province. The distribution characteristics and pollution evaluation of nutrient salts in typical wetland sediment in the study area have been analyzed, and the results show that the concentration of total nitrogen, total phosphorus, and organic matter has wide range between 0.26~6.51 g/kg, 0.36~3.98 g/kg, 0.52％~10.17％ respectively, indicating great spatial variability of the nutrient salts. Overall, park ponds and lakes have the highest contents of nutrient salts, followed by ditches and aquaculture farms, and rivers have the lowest contents of nutrient salts. There are significant positive correlations among the contents of organic matter, total nitrogen, and total phosphorus in wetland sediment, which implies a certain similarity in their sources, migration and transformation processes. The lake sediments have relatively lower ratios of C/N (8.6) and their organic matters mainly sourced from aquatic algae and plants. However, sediments in park ponds, rivers, ditches and aquaculture farms have much higher mean ratios of C/N (9.9~11.9) and their organic matters are mainly affected by terrestrial materials in origin. The evaluation results of organic nitrogen, organic index, and pollution index on nutrient salts in sediments are relatively consistent, which implies that the wetland sediment in the study area have been polluted to some extent, closely associated with the local agricultural activities such as livestock and poultry breeding and farmland fertilization. It is suggested to promote resource utilization by transforming the waste of livestock and poultry breeding into fertilizers, so as to implement scientific fertilization and reduce the usage of chemical fertilizers in the study area.

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备注/Memo

备注/Memo:
收稿日期:2023-4-13;改回日期:2023-7-7。
基金项目:江苏省地质勘查专项资金"江淮生态经济区核心地带(淮安)地质调查(编号:苏财建[2018]96号)"和江苏省地质勘查资金"淮安市富硒土地详查与开发利用示范(编号:苏财资环[2022]27号)"项目联合资助。
作者简介:黄顺生,1975年生,男,正高级工程师,硕士,主要从事生态地球化学调查与评价工作。Email:geohuangss@163.com。
更新日期/Last Update: 1900-01-01