1 The meaning and role of environmental monitoring The agricultural environmental monitoring is the use of the environment as a monitoring object, through the comprehensive application of physical, biological and other methods, the rational use of agricultural environmental monitoring instruments and other monitoring tools, the various substances and structures in the environment Qualitative and quantitative scientific analysis, summarizing the laws related to the environment and creating conditions for environmental protection. Environmental monitoring is to sample organisms in the environment, and conduct experimental identification of the types and contents of substances that are hazardous to the environment contained in the samples, and to study the environmental quality and structure in a specific space time. Therefore, environmental monitoring includes the following: natural environment monitoring of the atmosphere, water resources, soils, environmental monitoring of solid wastes, waste water, waste gas, waste residue, radioactivity, and noise caused by man-made waste. At the same time, environmental monitoring also has another important content that is based on the actual conditions of the environment, and establishes environmental protection projects based on environmental characteristics and existing threats. Through these projects, we can protect the environment and control pollution to achieve protection. The purpose of the environment is to provide a stable and favorable environment for the rapid development of society.
In addition, agricultural environmental monitoring is a comprehensive discipline that has emerged in recent years and provides a basis for environmental impact assessment. Therefore, environmental monitoring is the main line of environmental impact assessment, linking all aspects of environmental impact assessment. Moreover, environmental monitoring, as a comprehensive discipline, has two characteristics. On the one hand, environmental monitoring is based on statistics. It not only covers related physical sciences and chemistry, but also includes natural and social issues. Subjects, therefore, environmental monitoring is the best interpretation of the comprehensive utilization of disciplines. On the other hand, environmental monitoring mainly serves the development of society, and the social development environment provides materials for environmental monitoring. Therefore, there is an interaction between environmental monitoring and society. Environmental monitoring can obtain many data on the environment. These data are all responses to the basic conditions of the environment, including the atmosphere, rivers, noise, etc., as well as the capacity and accommodating capacity of environmental pollutants, providing data support for the formulation of environmental protection programs, and also for environmental control and management. Provides a scientific basis. The environmental impact assessment is to predict and evaluate the consequences of environmental monitoring and protection project implementation and the possible environmental risks. Now, China’s economic and social development are all in a critical period. Whether the results of environmental monitoring support environmental construction projects are reflected by the implementation effects of these projects. Whether the environmental impact assessment system can fully play its role is due to environmental monitoring. The results prove that environmental monitoring is the main link in environmental impact assessment and plays an important role in environmental impact assessment.
2 Related content of agricultural environmental impact assessment Overview We often say that the environmental impact refers to the role of human production and living activities in the environment and the changes brought about by these activities to the environment, which in turn causes people’s production and living environment. Variety. Moreover, the classification of environmental impacts according to different factors can classify environmental impacts into different categories. For example, the source of environmental impacts determines that environmental impacts can be divided into three categories: direct, indirect, and cumulative impacts. Classification is based on the nature of environmental impacts. Environmental impacts can be divided into recoverable environmental impacts and irrecoverable impacts. In addition, the environmental impact can also be classified according to source and region, but despite the different basis for classification and standards, the environmental impact is essentially the same.
The environmental impact assessment is a technology that predicts the environmental changes caused by people's activities. It integrates social development, human development and environmental changes, and has important implications for the design of related programs and projects that specify environmental protection. effect. In addition, through environmental impact assessment, it can also correctly guide important urban planning such as the division of urban functional areas and industrial locations, industrial structure adjustment, and promote the coordinated development of urban economic development and environmental protection and management, and promote the sustainable development of the city. At the same time, the environmental impact assessment can be divided into the following three levels: The first level is the impact assessment of the current status of the agricultural environment, and the evaluation of the relevant departments of the environmental impact assessment must first of all relate to the environmental status of environmental monitoring agencies and the environment. The implementation of the project is monitored, and accurate and standardized forecasting and evaluation of specific implementation details of the project are carried out under circumstances where environmental tolerance allows, and further monitoring plans are formulated. Secondly, after the stable implementation phase of the project, the monitoring of the environmentally hazardous substances generated by these projects will be used as a basis to evaluate the deep impact of the continued operation of the project on the environment and see if it is in the environment. Within the tolerance range. The second level is to predict and evaluate the environment.
This level is to be predicted based on the impact of the project after it has been carried out in the area, and it is to be accurately evaluated based on these forecast results. The last level is the follow-up evaluation of environmental impact. After the completion of the project, it will evaluate the environmental impact it produces. If the evaluation results are different from the predicted ones, the criteria and systems for evaluation shall be improved to ensure that the evaluation results are more accurate and more consistent. actual.
3 The Role of Agricultural Environmental Monitoring in Environmental Impact Assessment Environmental monitoring and environmental impact assessment are essentially similar in that they provide the basis for environmental protection and contribute greatly to the protection of the environment in China. Environmental monitoring is also used in environmental impact assessment. It also has an important role.
First, agricultural environmental monitoring provides data support for environmental impact assessment. The environmental impact assessment must be based on environmental monitoring data. Therefore, before the environmental impact assessment is conducted, the impact of the project on the environment should be monitored, including the natural implementation conditions of the project, including the monitoring of the atmosphere, water, and noise, and the determination of the project. The effective implementation can be within the allowable range of environmental safety. It also includes whether or not the project can adversely affect the environment after it is completed. That is whether the degree of acceptance of the project's implementation environment is greater than the impact of the project. The answers to these questions all need to monitor the environment, make a quantitative analysis of the environment, use accurate data to prove the impact of project implementation on the environment, and then determine whether the project is feasible. Only by obtaining accurate environmental monitoring data in the region can we accurately predict the environmental sustainability of the region and determine the feasibility of the project.
Second, agricultural environmental monitoring can supervise environmental impact assessment. Environmental monitoring is only one of the most basic methods for the supervision of environmental impact assessment. When the project is successfully completed, whether the changes brought to the environment can meet the basic requirements of the environment and whether it can bring beneficial effects to the region. Obtaining answers to these questions requires accurate environmental monitoring data to be measured, and whether the construction of the project can adversely affect the local natural environment such as the atmosphere, water, and noise, and cause environmental deterioration. All evaluation criteria are It is environmental monitoring data.
Third, the monitoring of agricultural environment is the basic link of environmental impact assessment and the main line of environmental impact assessment. Before the project construction party conducts the project construction, the environmental impact assessment department must be commissioned to conduct the evaluation. Then the evaluation department must monitor the environment of the project construction site, analyze and evaluate the monitoring data, and confirm whether the project is suitable for the area. Moreover, after a certain period of time after the completion of the project construction, it is still necessary to monitor the changes brought about by the project to the environment, and then evaluate the monitoring results to see whether the environmental monitoring results after the project construction meet the pre-construction forecast. The exhaust emission monitoring, the monitoring of waste water discharge, and the noise level monitoring of the noise after the construction of the project were respectively carried out to obtain the final results of environmental monitoring. In addition, environmental monitoring is still required for environmental changes after the project is run, and these data are used to support the structure of the environmental impact assessment. It is proved that the construction of the project does not have an adverse effect on the environment, and the implementation plan of the project can be carried out normally. .
In short, any environmental impact assessment must be based on the data provided by agricultural environmental monitoring, whether it is at the beginning of the project, the implementation process, and the completion and operation of the project. Therefore, environmental monitoring is ubiquitous in the overall environmental impact assessment. It is the main line of environmental impact assessment.
With the continuous development of the economy, environmental monitoring plays an increasingly important role in the assessment of agricultural environmental impacts. At the same time, in order to ensure the healthy development of the economy and society, we must pay more attention to the role of environmental monitoring in environmental impact assessment and protect the environment for government agencies. Provide a strong foundation.
In addition, agricultural environmental monitoring is a comprehensive discipline that has emerged in recent years and provides a basis for environmental impact assessment. Therefore, environmental monitoring is the main line of environmental impact assessment, linking all aspects of environmental impact assessment. Moreover, environmental monitoring, as a comprehensive discipline, has two characteristics. On the one hand, environmental monitoring is based on statistics. It not only covers related physical sciences and chemistry, but also includes natural and social issues. Subjects, therefore, environmental monitoring is the best interpretation of the comprehensive utilization of disciplines. On the other hand, environmental monitoring mainly serves the development of society, and the social development environment provides materials for environmental monitoring. Therefore, there is an interaction between environmental monitoring and society. Environmental monitoring can obtain many data on the environment. These data are all responses to the basic conditions of the environment, including the atmosphere, rivers, noise, etc., as well as the capacity and accommodating capacity of environmental pollutants, providing data support for the formulation of environmental protection programs, and also for environmental control and management. Provides a scientific basis. The environmental impact assessment is to predict and evaluate the consequences of environmental monitoring and protection project implementation and the possible environmental risks. Now, China’s economic and social development are all in a critical period. Whether the results of environmental monitoring support environmental construction projects are reflected by the implementation effects of these projects. Whether the environmental impact assessment system can fully play its role is due to environmental monitoring. The results prove that environmental monitoring is the main link in environmental impact assessment and plays an important role in environmental impact assessment.
2 Related content of agricultural environmental impact assessment Overview We often say that the environmental impact refers to the role of human production and living activities in the environment and the changes brought about by these activities to the environment, which in turn causes people’s production and living environment. Variety. Moreover, the classification of environmental impacts according to different factors can classify environmental impacts into different categories. For example, the source of environmental impacts determines that environmental impacts can be divided into three categories: direct, indirect, and cumulative impacts. Classification is based on the nature of environmental impacts. Environmental impacts can be divided into recoverable environmental impacts and irrecoverable impacts. In addition, the environmental impact can also be classified according to source and region, but despite the different basis for classification and standards, the environmental impact is essentially the same.
The environmental impact assessment is a technology that predicts the environmental changes caused by people's activities. It integrates social development, human development and environmental changes, and has important implications for the design of related programs and projects that specify environmental protection. effect. In addition, through environmental impact assessment, it can also correctly guide important urban planning such as the division of urban functional areas and industrial locations, industrial structure adjustment, and promote the coordinated development of urban economic development and environmental protection and management, and promote the sustainable development of the city. At the same time, the environmental impact assessment can be divided into the following three levels: The first level is the impact assessment of the current status of the agricultural environment, and the evaluation of the relevant departments of the environmental impact assessment must first of all relate to the environmental status of environmental monitoring agencies and the environment. The implementation of the project is monitored, and accurate and standardized forecasting and evaluation of specific implementation details of the project are carried out under circumstances where environmental tolerance allows, and further monitoring plans are formulated. Secondly, after the stable implementation phase of the project, the monitoring of the environmentally hazardous substances generated by these projects will be used as a basis to evaluate the deep impact of the continued operation of the project on the environment and see if it is in the environment. Within the tolerance range. The second level is to predict and evaluate the environment.
This level is to be predicted based on the impact of the project after it has been carried out in the area, and it is to be accurately evaluated based on these forecast results. The last level is the follow-up evaluation of environmental impact. After the completion of the project, it will evaluate the environmental impact it produces. If the evaluation results are different from the predicted ones, the criteria and systems for evaluation shall be improved to ensure that the evaluation results are more accurate and more consistent. actual.
3 The Role of Agricultural Environmental Monitoring in Environmental Impact Assessment Environmental monitoring and environmental impact assessment are essentially similar in that they provide the basis for environmental protection and contribute greatly to the protection of the environment in China. Environmental monitoring is also used in environmental impact assessment. It also has an important role.
First, agricultural environmental monitoring provides data support for environmental impact assessment. The environmental impact assessment must be based on environmental monitoring data. Therefore, before the environmental impact assessment is conducted, the impact of the project on the environment should be monitored, including the natural implementation conditions of the project, including the monitoring of the atmosphere, water, and noise, and the determination of the project. The effective implementation can be within the allowable range of environmental safety. It also includes whether or not the project can adversely affect the environment after it is completed. That is whether the degree of acceptance of the project's implementation environment is greater than the impact of the project. The answers to these questions all need to monitor the environment, make a quantitative analysis of the environment, use accurate data to prove the impact of project implementation on the environment, and then determine whether the project is feasible. Only by obtaining accurate environmental monitoring data in the region can we accurately predict the environmental sustainability of the region and determine the feasibility of the project.
Second, agricultural environmental monitoring can supervise environmental impact assessment. Environmental monitoring is only one of the most basic methods for the supervision of environmental impact assessment. When the project is successfully completed, whether the changes brought to the environment can meet the basic requirements of the environment and whether it can bring beneficial effects to the region. Obtaining answers to these questions requires accurate environmental monitoring data to be measured, and whether the construction of the project can adversely affect the local natural environment such as the atmosphere, water, and noise, and cause environmental deterioration. All evaluation criteria are It is environmental monitoring data.
Third, the monitoring of agricultural environment is the basic link of environmental impact assessment and the main line of environmental impact assessment. Before the project construction party conducts the project construction, the environmental impact assessment department must be commissioned to conduct the evaluation. Then the evaluation department must monitor the environment of the project construction site, analyze and evaluate the monitoring data, and confirm whether the project is suitable for the area. Moreover, after a certain period of time after the completion of the project construction, it is still necessary to monitor the changes brought about by the project to the environment, and then evaluate the monitoring results to see whether the environmental monitoring results after the project construction meet the pre-construction forecast. The exhaust emission monitoring, the monitoring of waste water discharge, and the noise level monitoring of the noise after the construction of the project were respectively carried out to obtain the final results of environmental monitoring. In addition, environmental monitoring is still required for environmental changes after the project is run, and these data are used to support the structure of the environmental impact assessment. It is proved that the construction of the project does not have an adverse effect on the environment, and the implementation plan of the project can be carried out normally. .
In short, any environmental impact assessment must be based on the data provided by agricultural environmental monitoring, whether it is at the beginning of the project, the implementation process, and the completion and operation of the project. Therefore, environmental monitoring is ubiquitous in the overall environmental impact assessment. It is the main line of environmental impact assessment.
With the continuous development of the economy, environmental monitoring plays an increasingly important role in the assessment of agricultural environmental impacts. At the same time, in order to ensure the healthy development of the economy and society, we must pay more attention to the role of environmental monitoring in environmental impact assessment and protect the environment for government agencies. Provide a strong foundation.
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Under the pressure of the ink supply pump, the ink passes through the ink pipeline from the ink tank, adjusts the pressure, viscosity and enters the spray gun. With the continuous pressure, the ink sprays out from the nozzle. When the ink passes through the nozzle, it is broken into a series of continuous, equal spacing and the same size ink droplets by the action of piezoelectric crystal, and the ink flow is sprayed. Continue to move downward and charge through the charging electrode. In the charging electrode, the ink droplets are separated from the ink line. When the ink droplet is separated from the conductive ink wire, it will instantly carry a negative charge proportional to the voltage applied by the charging electrode. By changing the voltage frequency of the charging electrode to make it the same as the breaking frequency of ink droplets, each ink droplet can be charged with a predetermined negative charge. Under the continuous pressure, the ink flow continues to move downward, passing through the middle of two deflection plates with positive and negative voltage respectively. When the charged ink droplets pass through the deflection plate, they will deflect. The degree of deflection depends on the amount of charge charged. The non-charged ink droplets do not deflect. They fly downward and flow into the recovery pipe. Finally, they return to the ink box for recycling through the recovery pipe. The charged and deflected ink droplets fall at a certain speed and angle on the object passing in front of the vertical nozzle.
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