(2012?Liaoning) Read the graphic material and complete the following requirements. As shown in the figure of the region of the coastal area of the annual precipitation of about 50 millimeters, the hei

(2012?Liaoning) Read the graphic material and complete the following requirements. As shown in the figure of the region of the coastal area of the annual precipitation of about 50 millimeters, the height of the snow line of the eastern mountains (1) This question examines the students to read the map as well as the ability to extract the effective information of the graphic material, based on the map of latitude, land and sea position, topography and other features, analyze the high temperature, evaporation, and is located in the southeast trade winds of the leeward slopes, and by the effect of the cold current cooling and humidity, so drought.

(2) According to the local climate drought, so the irrigation water source has groundwater; according to the information in the figure can be known: in the eastern mountains have snow and glacier distribution, so snow and ice melt water can also become irrigation water source.

(3) Favorable view: vigorously developing asparagus cultivation is conducive to increasing employment opportunities, expanding employment and increasing income, thus promoting economic development.

Disapproval: The region's climate is arid, and asparagus growth requires a lot of water, so it will lead to a greater lack of water resources in the region, hindering the development of the economy．

The answer is:

(1) in the tropics, high temperatures throughout the year, evaporation; (blocked by the eastern mountains) in the southeast trade winds of the leeward slopes of the mountains, unfavorable precipitation; (powerful) the coastal cold front of the humidity reduction effect is strong.

(2) Groundwater; snow and ice melt (river water).

(3) Viewpoint 1: asparagus cultivation should be vigorously developed. Reason: to expand employment, increase income and promote economic development．

Opinion 2: Asparagus planting should not be developed. Reason: asparagus growth water consumption, the local water resources are lacking, planting asparagus to make the local water resources more scarce.