Environmental protection on March 8-9, 20 13, sandstorms swept through northwest and north China, and sandstorms and strong sandstorms appeared in some areas. The picture is

(1) The climate is d

Environmental protection on March 8-9, 20 13, sandstorms swept through northwest and north China, and sandstorms and strong sandstorms appeared in some areas. The picture is

(1) The climate is dry and the surface vegetation is scarce; Strong wind; Shayuanduo

(2) destroying crops; Land desertification: fertility decline; Affect plant growth

(3) communication

(4) Pay attention to ecological problems and participate in publicity activities for wind prevention and sand control; Carry out fundraising activities, etc. (Any answer)

(1) Dust intensity can be analyzed from the aspects of surface vegetation, wind power and sand source. Legend has it that A is a strong sandstorm area, and A is located in the Tarim Basin, which is the largest desert in China. The climate in this area is dry, the surface vegetation is scarce, the wind is strong, and there are many sand sources, so it is stronger than the dust in B and C.

(2) Dust weather can destroy farmland facilities, crops and surface vegetation, which is the decline of soil fertility, resulting in land desertification.

(3) According to the chart, the dust weather mainly occurs in the north and northwest of China, and reducing the dust hazard can be considered from two aspects: weakening the wind and increasing the surface vegetation. Northwest China is short of water resources and is not suitable for large-scale irrigation. So choose the AC option of this question.

(4) According to the chart, although Jiangsu is less affected by dust, as a middle school student, it should also bear its own responsibilities and obligations in the process of sustainable development. For example, pay attention to ecological issues and participate in publicity activities to prevent wind and sand; Carry out fundraising activities, etc.

Location of test sites This topic examines the main ecological and environmental problems and their causes; Main measures of ecological environment protection and their functions; Main eco-environmental problems in different regions of China; Personal attitude, responsibility and code of conduct in environmental protection.