Is there any environmental pollution problem in Dinghushan now?

The air pollution in Dinghushan tourist area is mainly caused by tourists burning incense in temples and automobile exhaust.

According to the measurement results [( 1)], this paper analyzes whether the atmospheric environment in the tourist area is the tourist peak season or the tourist low season.

The quality is obviously lower than the atmospheric environment quality in the core area. In the same tourist attraction, the pollutants in the tourist season include

The amount is higher than the corresponding content in the off-season of tourism, and the total suspended particulate matter in the atmosphere greatly exceeds the national first-class standard of total suspended particulate matter.

Quasi. For example, in tourist season, the total suspended particulate matter and lead content in tourist area (arboretum) are 1.8 respectively.

632 mg/m3 and 0.5505× 10 mg/m3.

It is 2.07 times of the total suspended particulate matter in the core area (Baiyun Temple) of 0.9002 mg/m3, and it

The lead content is 0.3250×10 [5] mg/m [3]1.69 times. Among them, the tourist area

The total suspended particulate matter is 12.4 times of the national first-class standard of total suspended particulate matter. In the off-season of tourism, tourist areas (trees

The contents of total suspended particulate matter and lead in Muyuan are 0.8259mg/m3 and 0.2333 m, respectively.

G/m [3] is 1.74 times and 1.79 times of the corresponding content in the core area (Baiyun Temple) respectively.

Among them, the total suspended particulate matter in the atmosphere of tourist areas is 9.6 times of the national first-class standard of total suspended particulate matter. atmosphere

The sulfur conversion rate also shows a similar trend. Take the tourist season as an example, the tourist area (Qingyun Temple)

The average conversion rate of atmospheric sulfur to SO [,3] is 2.902×10 [-3] mg/c.

m[2]？ D, and the core area (Baiyun Temple), the corresponding average content is 0 mg/cm [2]? d .

1.2 water pollution problem

The research result [(2)] shows that the water ring quality in Dinghushan tourist area is lower than that in tourist-free area.

Or the water ring quality of the sample plots that tourists seldom enter is poor. As shown in table 1.

Table 1 comparison of water environment quality between Dinghushan tourist area and core area [*] mg/L

Note: * Data source, press [(2)]; 1) total number of bacteria; 2) Total coliform bacteria

count

As can be seen from the table 1, compared with the core area of nature reserve, there are more bacteria and coliforms in the water of tourist area, D.

O, BOD and COD are high, indicating that tourism has caused water pollution in tourist areas.

1.3 soil environmental problems

The environmental problems faced by the soil in Dinghushan tourist area are mainly the difficulties for tourists to litter and plastic products.

The decomposed solid pollutants affect the material circulation of soil; Tourists trample on the soil structure, causing soil hardening;

The construction of tourist facilities destroyed the original structure of soil and reduced the number of biological populations, thus reducing the water content of soil.

Soil conservation capacity. After research [(2)], the soil physical properties of tourist area and core area are compared.

The former has high bulk density and specific gravity, and the roadside soil has high organic matter content. See Table 2.

In addition, because the physical properties of soil are closely related to the number of soil animals, human tourism activities will also affect animals.

Species and their biomass. Therefore, in the tourist area, the sample plots are along the roads where tourists trample and vehicles are noisy.

There are fewer animals than those far from the road. For example, the number of soil animals near the roadside at each monitoring point in the tourist area.

The ratio of the average number to the average number of soil animals far from the road is 0.84.

Table 2 Comparison of physical properties between tourist area and core area g/cm [3]

Bulk density, specific gravity and organic matter content of sampling point (%)

Tourist area1.251.62 6.5438+0

Core area 1.08 1.59 2.83

1.4 biodiversity issues

According to the long-term observation and research results of researchers in Dinghushan Nature Reserve [( 1)], protection

Some medicinal and ornamental plant and animal species in the reserve have disappeared. By 199 1 year, nature reserves were established.

In the past 35 years, 27 species groups have been decreasing and 7 species have become extinct. After a field trip

Analysis shows that the main reason for the decrease of biodiversity in Dinghushan is that tourists and nearby residents lack basic ecological and environmental awareness.

Knowledge, poor management of the tourism sector, some tourists' mountaineering activities are out of control. All these factors lead to a large number.

The act of picking exotic flowers and herbs has accelerated the extinction of rare plants, and residents near the nature reserve have always been in the forefront.

Interest, the high purchase price of the creatures in the protected area, further aggravated the destruction of biological resources.

Guo Moruo praised it as "no tea and wine for guests, and the cup is full of anemone with purple back", a specialty of Dinghushan, because

Predatory harvesting is close to extinction. Expensive precious medicinal materials such as agarwood and thorn wood rafters are also due to

Blindly cut down, endangered.