The monitoring of the agricultural environment requires a specific plan and program. Accurately obtaining relevant environmental information from the monitoring results, the degree of importance of the instrument is self-evident, and it also depends on the completeness of the monitoring program. Include the following: monitoring items, monitoring scope, monitoring period and monitoring points. The construction and layout of agricultural environmental monitoring stations is very important.
There are many types of water environment monitoring projects, including specific pollutants emitted by various pollution sources, and routine monitoring items that reflect water quality characteristics such as temperature, p-day value, suspended solids, dissolved oxygen, COD, BODS, etc.
Water environment monitoring sampling points are laid out according to the purpose of monitoring, the location of water use and the selection of data requirements. In order to understand the self-cleaning process of surface water, the sample point should be at the cross-section of the discharge section at the upstream of the wastewater discharge outlet and the discharge section at 5h.12h.24h.48 to 100h. The sampling points of each section should be evenly distributed on the cross section. Understand the mixing of waste water at the section. The distribution of agricultural water quality monitoring should be based on the hazards of water pollution to agricultural organisms. Based on the distribution of pollution and distribution of water systems, the monitoring will focus on areas where agricultural environmental pollution is a prominent issue and important for the development of national agricultural economy, such as suburban irrigation. Wastewater and agricultural areas where there are a lot of rubbish, agricultural areas that are seriously polluted by industrial “three wastes†around the coal mining areas, high-yield agricultural areas where pesticides and chemical fertilizers are used a lot, agricultural commodity bases that are invested by the state, and agricultural production bases that earn foreign exchange. The frequency of quality monitoring shall be determined as required. To understand the changes of river water quality with the seasons, separate sampling shall be carried out during the wet season, the flat water period and the dry season, and a hydrological survey shall also be conducted. The specific sampling shall be carried out according to agricultural environmental monitoring technical specifications.
The construction of agricultural environmental monitoring stations is also beneficial for biological monitoring. In agricultural environmental monitoring, biological residue analysis has great significance in monitoring agricultural, livestock and aquatic products. In the monitoring of biological remnants, strict standardization is required for the collection, preservation, preparation and sample pretreatment of the sample. The analytical test method generally adopts a chemical or physical method for bacteriological examination. Currently, bacteria are generally used. Total monitoring method and E. coli monitoring method. In biomonitoring, the use of indicator plants to monitor air pollution is an effective method. The damage caused by air pollution to sensitive indicator plants is obvious. Through a large number of experiments, a list of pollution indicators for plant pollution and a color map of pollution damage were compiled. The hazards of environmental pollution can be analyzed according to the visible symptoms of biological pollution victims. Among the three methods of agricultural environmental monitoring, the sensitivity and reliability of biological monitoring Less than physical and chemical analysis methods, therefore. It can not replace the conventional method can only make a supplement.
There are many types of water environment monitoring projects, including specific pollutants emitted by various pollution sources, and routine monitoring items that reflect water quality characteristics such as temperature, p-day value, suspended solids, dissolved oxygen, COD, BODS, etc.
Water environment monitoring sampling points are laid out according to the purpose of monitoring, the location of water use and the selection of data requirements. In order to understand the self-cleaning process of surface water, the sample point should be at the cross-section of the discharge section at the upstream of the wastewater discharge outlet and the discharge section at 5h.12h.24h.48 to 100h. The sampling points of each section should be evenly distributed on the cross section. Understand the mixing of waste water at the section. The distribution of agricultural water quality monitoring should be based on the hazards of water pollution to agricultural organisms. Based on the distribution of pollution and distribution of water systems, the monitoring will focus on areas where agricultural environmental pollution is a prominent issue and important for the development of national agricultural economy, such as suburban irrigation. Wastewater and agricultural areas where there are a lot of rubbish, agricultural areas that are seriously polluted by industrial “three wastes†around the coal mining areas, high-yield agricultural areas where pesticides and chemical fertilizers are used a lot, agricultural commodity bases that are invested by the state, and agricultural production bases that earn foreign exchange. The frequency of quality monitoring shall be determined as required. To understand the changes of river water quality with the seasons, separate sampling shall be carried out during the wet season, the flat water period and the dry season, and a hydrological survey shall also be conducted. The specific sampling shall be carried out according to agricultural environmental monitoring technical specifications.
The construction of agricultural environmental monitoring stations is also beneficial for biological monitoring. In agricultural environmental monitoring, biological residue analysis has great significance in monitoring agricultural, livestock and aquatic products. In the monitoring of biological remnants, strict standardization is required for the collection, preservation, preparation and sample pretreatment of the sample. The analytical test method generally adopts a chemical or physical method for bacteriological examination. Currently, bacteria are generally used. Total monitoring method and E. coli monitoring method. In biomonitoring, the use of indicator plants to monitor air pollution is an effective method. The damage caused by air pollution to sensitive indicator plants is obvious. Through a large number of experiments, a list of pollution indicators for plant pollution and a color map of pollution damage were compiled. The hazards of environmental pollution can be analyzed according to the visible symptoms of biological pollution victims. Among the three methods of agricultural environmental monitoring, the sensitivity and reliability of biological monitoring Less than physical and chemical analysis methods, therefore. It can not replace the conventional method can only make a supplement.
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