摘要
本文在对胶东半岛水保林现状调查的基础上,对水保林的效益进行了定量评估。经计算,32.4万公顷水保林(覆盖率为16.9％)产生的年经济效益为6521.3万元。其中:保护土壤肥力折价为68万元、保土拦沙效益价值为172.2万元、森林涵养水源的价值为2413.2万元、可供氧气的效益价值为3500万元和水保林林木价值367.9万元。
Based on the investigation of present situation of forest for soil and water conservation in Jiaodong Peninsula, the benefit of the forest is quantitatively estimated. It is calcula ted that 324000 ha. forest for conservation ( covering 16.9% of the land surface) can produce economic benefit of 65213000 yuan, in which the value of preserving soil fertility is 680000 yuan, the value of checking sediment output 1722000 yuan, the value of conserving water through afforestation 24132000 yuan, the value of providing oxygen 35000000 yuan and the value used as timber 3679000 yuan.
出处
《中国水土保持》
北大核心
1990年第2期36-38,共3页
Soil and Water Conservation in China
