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针对近年来在全球气候变化和人类过度放牧的影响下降水偏少、草场退化严重的现状,利用太阳能提水灌溉草场是解决干旱地区草场退化的有效途径,以青海省为例,分析了水资源与草场的匹配情况,并分别从经济效益与地下水可持续两方面论证了实施太阳能提水灌溉的可行性。结果表明,青海省实施太阳能提水灌溉的潜力很大,当降水量为350~400 mm时太阳能提水灌溉单位投入产出量最大,提水后仍可保持地下水的可持续性。该法有效可行,并可促进生态改善和当地经济发展,供借鉴。
In view of the current situation of less precipitation and serious degeneration of pasture due to global climate change and human overgrazing in recent years, it is an effective way to solve the degradation of grassland in arid areas by using solar energy to raise water for pasture degradation. Taking Qinghai Province as an example, And grassland matching situation, and respectively from the economic benefits and groundwater sustainability demonstrate the feasibility of implementing solar water-lifting irrigation. The results show that there is a great potential for solar water pumping in Qinghai Province. When the precipitation is 350-400 mm, solar water pumping unit has the largest input and output, and can maintain the sustainability of groundwater after pumping water. This law is valid and feasible, and can promote ecological improvement and local economic development for reference.