祁连山水源涵养林综合效能的计量研究

METROLOGICAL RESEARCH ON SYNTHETICAL EFFICIENCY OF WATER CONSERVATION FOREST IN THE QILIAN MOUNTAINS

以马克思级差地租理论,建立了祁连山水源涵养林综合效能的评价模型:E=E_d+E_e+E_s;以E与生产投资I的比值为计量水源林的效能指数T,T=E/I。并以祁连山寺大隆森林生态定位研究站实测资料和社会调查数据为计量评价参数,确定其经济评价指标体系和计量系统。结果表明:祁连山水源涵养林综合效能指标为11.93;其中生态效能和社会效能分别是直接经济效能的4.51倍和6.05倍。说明祁连山水源涵养林现行的保护、发展和综合利用的经营方针是正确的。建议河西各受益部门应按水资源效能总收入的0.5％缴作水源林再生产费,以确保国民经济建设的长远发展。

The evaluation model(E=E_d+E_e+E_s) of the synthetical efficiency of water conservation forest in the Qilian mountains has been built up with the theory of Marxist differential land rent, taking the retio of E to I as the efficiency index T of water reservoir forest, T=E/I where I is production invesment. The material observed at the Qilian Mountains fix-position Research Station of Forest ecosystem and the data investigated from social are regarded as the metrological valuation parameters. The economic evaluation index and the metrological system have been determined. The results show that the index of the synthetical efficiency of water conservation forest in the Qilian Mountains is 11.93, among which ecological efficiency and social efficiency are 4.51 and 6.05 times as much as the immedinate economic efficiency respectively.We have affirmed that the management policies of protection, development and synthetical utilization are right at present, and various profitable departments in HeXi should return sum over 0.5％ of total income from water efficiency to forestry department as reproduction cost in order to ensure the long-term development of national economic construction.