JING Ke,JIAO Ju-ying.Research on the Benefits and Costs Assessment for Soil and Water Conservation——Taking Ansai County as an Example[J].Research of Soil and Water Conservation,2011,18(01):132-136.
水土保持措施与效益评价研究——以陕北安塞县为例
- Title:
- Research on the Benefits and Costs Assessment for Soil and Water Conservation——Taking Ansai County as an Example
- Keywords:
- soil and water conservation costs; soil and water conservation measurements; control aims; evaluation indexes; Ansai county
- 分类号:
- S157
- 摘要:
- 至今水土流失治理效益评价研究还处在摸索阶段，对水土保持效益类型、评价的原则、指标、方法以及不同措施效益最大化决定因素等未形成共识。基于水土保持效益具有多重性、连动性、交叉性和利弊互动性的特点，决定了效益评价程序首先是要确立治理目标，然后是评价原则、评价指标和评价方法。本文运用这一评价程序和自然环境特点，拟定了安塞县水土流失的治理目的，是在粮食自给的基础上尽量多增加经济收入和提高生态环境质量。并以此思路设计和预测了安塞县进行全面治理的水土保持措施规模及生态、经济效益和投产比，最终可达到粮食自给，林草覆盖增加到30%～40%，人均增加3 000元/a的经济收入，预计能在3～5 a内收回治理成本。
- Abstract:
- Up to now, soil and water conservation benefits assessment has remain in the beginning stage, there are still no consensus on many key issues, such as soil and water conservation benefits types, evaluation principles, indexes, methods and maximum benefit determinant factors of difference measures. Because of the multiplicity, motility, overlapping and interaction of advantages and disadvantages characters of soil and water conservation benefits, the assessment procedure should determine the aims of governance firstly, then decide the principles, indexes and measures. Based on this assessment program, according to local natural environment, this paper established controlling aims of Ansai county’s soil and water conservation, that was on the condition of food self-sufficiency, to increase economical incomes and improve environment quality as much as possibly. According to this idea, this paper designed Ansai county’s comprehensive soil and water conservation treatments scale, ecological benefits, economical benefits and input-output ratio. Adopted this design, food self-sufficiency is achievable, coverage of forest (grass) can be improved by 30%～40%, per capita income will be enhanced by 3 000 Yuan/a and it will take 3～5 years to take cost recovering.
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备注/Memo
收稿日期:2010-7-1;改回日期:2010-8-10。
基金项目:国家科技支撑计划项目“黄土高原水土流失综合治理工程关键支撑技术研究”课题“黄土高原水土流失综合防治技术研究”（2006BAD09B10-2）
作者简介:景可（1939- ），男，研究员，主要研究方向：流域侵蚀环境。E-mail：jingk@igsnrr.ac.cn