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森林为人类提供了丰富的物质产品 ,巨大的直接经济价值有目共睹 ,但很少有人注意到其潜在的经济价值。本文通过对森林各生态指标的评价 ,从六个方面对铜梁县张家沟小流域水保林的潜在经济价值进行了较为详尽的探讨 ,计算得出张家沟流域在 1983～ 1993年 10年间所种植的 2 5 6 .6 3hm2 水保林 ,到 1993年为止为取得的潜在经济价值达 15 5 6 .6万元 ,约为直接价值的 8.5 8倍。从而证明了森林除具有直接经济价值之外 ,还具有巨大的潜在经济价值 ,并且对流域生态环境及农业生产良性发展有重大意义 ,认为任何忽视森林间接价值的做法都是不明智的。
Forests provide a rich material product to human beings, and the enormous direct economic value is obvious to all, but few people noticed its potential economic value. In this paper, the potential economic value of water and soil conservation forest in Zhangjiagou small watershed of Tongliang County is discussed in detail from six aspects of the evaluation of forest ecological indicators. The results show that in Zhangjiagou watershed in 1983 ~ 1993 10 During the year, 256,600 hm 2 of water and forest were planted. As of 1993, the potential economic value obtained reached 1,556.6 thousand yuan, which is 8.58 times of the direct value. It proves that forest has great potential economic value as well as direct economic value, and is of great significance to the ecological environment of the river basin and the healthy development of agricultural production. It is not wise to ignore any indirect value of forest.