当前位置: X-MOL 学术Environ. Geochem. Health › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Characterization and distribution of different phosphorus types in the agricultural areas of Daecheong Lake Watershed, South Korea
Environmental Geochemistry and Health ( IF 4.2 ) Pub Date : 2021-05-19 , DOI: 10.1007/s10653-021-00969-0
Hyeseon Choi 1 , Nash Jett Reyes 1 , Lee-Hyung Kim 1
Affiliation  

Agricultural areas utilize various types of agrichemicals to enhance crop growth and production. As a consequence, areas treated with excessive amounts of agrichemicals become primary sources of environmental pollutants. This study was conducted to analyze the different types of phosphorus (P) in the agricultural soils in Deacheong Lake Watershed. The effects of cultivation activities in the availability of nutrients that can potentially cause eutrophication of receiving water bodies were also assessed. The total phosphorus (T–P) and phosphate (PO4-P) concentrations in the tributaries draining into the Daecheong Lake were found to be three to seven times higher than the T–P and PO4–P concentrations in Daecheong Lake. The P concentrations in the waterways exhibited significant correlations (p < 0.05) with the soil P, implying that agricultural activities may influence the water quality in Daecheong Lake. Dry field soils had higher T–P concentrations (1246.1 ± 579.9 mg/kg) as compared to paddy fields and in situ soils due to the continuous accumulation of P in the soil strata. Non-apatite inorganic phosphorus (NAI-P) was the most dominant type of P in paddy field soils, whereas organic-P had the highest fraction in dry field soils. Paddy fields can have higher potentials of contributing to eutrophication, since NAI-P is an indicator of algal-available P. T–P concentrations in agricultural soils planted with different crops follows the order: tobacco > corn > perilla > soybean > Chinese cabbage > barley > sweet potato > garlic > potato > red pepper > rice. Generally, shifts in agricultural practices can be used to assess the contribution of agricultural areas in the eutrophication potential of water bodies.



中文翻译:

韩国大清湖流域​​农业区不同磷类型特征及分布

农业区利用各种类型的农用化学品来促进作物生长和生产。因此,使用过量农用化学品处理的地区成为环境污染物的主要来源。本研究旨在分析德清湖流域农业土壤中不同类型的磷 (P)。还评估了养殖活动对可能导致受纳水体富营养化的养分有效性的影响。流入大清湖的支流中的总磷(T-P)和磷酸盐(PO 4 -P)浓度比 T-P 和 PO 4高 3 到 7 倍大清湖中的-P浓度。水道中的 P 浓度表现出显着的相关性(p < 0.05) 与土壤磷,这意味着农业活动可能会影响大清湖的水质。由于土壤层中磷的持续积累,与稻田和原位土壤相比,旱田土壤具有更高的 T-P 浓度 (1246.1 ± 579.9 mg/kg)。非磷灰石无机磷(NAI-P)是稻田土壤中最主要的磷类型,而有机磷在旱田土壤中的比例最高。由于 NAI-P 是藻类有效磷的指标,稻田可能具有更高的富营养化潜力。种植不同作物的农业土壤中 T-P 浓度的顺序为:烟草 > 玉米 > 紫苏 > 大豆 > 大白菜 >大麦>红薯>大蒜>马铃薯>红辣椒>大米。一般来说,

更新日期:2021-05-19
down
wechat
bug