高中地理能源专题（High school geographic energy topics）.docVIP

高中地理能源专题（High school geographic energy topics） High school geography brief answer series (three): energy topics The energy utilization in China mainly existing problems and development direction: The problems with A. Uneven distribution of energy areas, energy production and energy consumption areas do not match, The energy consumption per capita is low, the utilization rate of energy is low, and the energy consumption per unit output value is great, The composition of energy consumption is not reasonable, Vast rural areas still use lots of wood and straw as fuel. B. development direction of energy utilization in china: Mainly coal, the use of oil and natural gas, and actively develop hydropower, and steadily develop nuclear power, according to local conditions The development of solar energy, wind energy, methane, geothermal energy, ocean energy, etc.. The use of the characteristics of Chinas energy consumption changes: The proportion of coal declined, and the proportion of petroleum, natural gas, hydropower and nuclear power increased. Example 1: what are the environmental problems caused by coal based energy consumption structure? The discharge of harmful gases such as SO2, the formation of acid rain and fog; Emitting large amounts of CO2 gas, enhancing greenhouse effect and global warming; Producing waste residue and polluting the environment; Waste water source. Example 2: to firewood (straw) as the main energy structure and environment problems: Destruction of vegetation (deforestation), (destruction of ecological structure), causing soil erosion, land desertification and so on The straw can not be returned to the field, reducing the supply of organic fertilizer in the cultivated land, resulting in the decline of soil fertility The decrease of livestock feed is not conducive to the virtuous cycle of agricultural ecology A way to change the situation: Develop and utilize many kinds of energy according to local conditions; The construction of firewood; Improve e