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- Title
Study on the Probability Distribution of Environmental Pollution Risk Caused by Sewage Irrigation in Farmland.
- Authors
Xin Huanga; Hongliang Lib
- Abstract
The shortage of water resources is the bottleneck that restricts China's economic and social development, especially the shortage of water in agriculture is even more serious. The intensification of industrial and domestic sewage discharges has led to the pollution of the water quality in all major water areas, and as a result, agriculture faces the serious challenge of water quality-induced water shortage. Within a long period of time, irrigation of farmlands with sewage is inevitable and there will be increase but no decrease. Though a lot of research has been done on the risk of environmental pollution caused by sewage irrigation, these studies do not have a deep and quantitative analysis of the degree of environmental risk caused by irrigation of farmlands with sewage. Based on the assumption that the degree of environmental risk caused by irrigation of farmlands with sewage can be correctly reflected, this paper studies the probability distribution of environmental risk caused by irrigation of farmlands with sewage through inference, calculus and non-parametric test, and by making use of the actual data, draws the conclusion through calculation that the probability distribution of the degree of environmental risk caused by irrigation of farmlands with sewage has normal distribution (0.275, 0.015).
- Subjects
POLLUTION risk assessment; DISTRIBUTION (Probability theory); SEWAGE irrigation; WATER shortages; AGRICULTURE &; the environment
- Publication
Nature Environment & Pollution Technology, 2018, Vol 17, Issue 4, p1347
- ISSN
0972-6268
- Publication type
Article