《酸雨对中国南方地区的影响》魔法香蕉nanb

5、Findings

　　4.1.Basic Information Of The Respondent
　　200 questionnaires were distributed in the form of online questionnaires, and 188 valid questionnaires were collected after one week of survey. Among all the 188 respondents, 21 (11.2%) were undergraduates, 132 (70.2%) were graduate students. And 35 (8.6%) were teachers,and 60% of the respondents had a certain understanding of the ecological environment in southern China.

　　4.2.The Greatest Impact Object

　　Respondents were asked to choose which object he thought acid rain affected more severely. The survey result shows that 32% respondents thought land resources are the most affected, and water resources are more affected(26%) .Biological resources and buildings were moderately affected, while climate resources were the least affected,only 6% of respondents believe they will be affected.
　　4.3.More Indirectly Impact Others object

　　In this section, respondents were asked to choose which object they thought the direct harm of acid rain would further affect others. The survey results show that after acid rain pollution and direct contact with the hazard, 39% of respondents believe that contaminated land resources will further affect other objects, 37% of respondents believe that polluted water resources will further affect other objects, and less than 15% of respondents believe that polluted climate resources will indirectly affect other objects. Only a minority of respondents believed that contaminated biological resources and buildings would affect other objects, with 5% and 4% respectively.
　　4.4.The Impact of Objects Contaminated on Other Objects
　　In the bar chart, A is used to refer to the objects directly affected by acid rain, and B is used to refer to other objects further affected by objects contaminated by acid rain.
　　The abscissa of the bar chart represents the number of respondents who agree that this indirect influence exists.The ordinates of a bar chart are represented as different combinations of objects A and B.
　　Among them, A1, A2, A3, A4 are: water resources, land resources, climate resources, buildings, B1, B2, B3 are: biological resources, land resources, buildings.

　　In this section, respondents were asked to choose whether they thought that object A directly contaminated by acid rain would further affect other objects B. Almost everyone believes that water contaminated by acid rain will harm biological resources, and nearly three-quarters of respondents believe that polluted water resources will further harm land resources, and contaminated land resources will further harm biological resources. Nearly half of those surveyed believed that polluted climate resources will further affect biological resources. The remaining two combinations are considered to be untenable because the number of investigators who recognize their existence is too small, or even less than one-third.