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农村水库生态补偿研究

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  摘 要:株树桥水库是湖南重要的饮用水源之一,主要供应长沙东部地区的饮用水。结合实地调查,以株树桥水库饮用水源为对象,从经济学和环境科学的角度分析水库管理,以生态补偿机制和环境经济作为切入点综合研究。目前株树桥水库面临着较大的水资源生态环境压力,经济发展限于水源保护而受到巨大制约,迫切需要启动生态补偿机制。针对株树桥水库饮用水源地面临水资源需求缺乏合理配置和有效管理,补偿方式单一、标准偏低等主要问题提出了水源地生态补偿机制,通过建立优质水权市场,健全水源地监督管理机制和依靠科技进步创新水源地的可持续发展模式。
  关键词:农村水库;生态补偿;区域影响
  中图分类号:F323.2文献标识码:A文章编号:1006-060X(2014)22-0051-03
  Ecological Compensation for Rural Reservoir with Hunan Zhushuqiao Reservoir as an Example
  PANG Shu
  (College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PRC)
  Abstract:Zhushuqiao reservoir is one of the most important drinking water source in Hunan, which is related to the safety of drinking water supply for Changsha area. Based on the field investigation, the drinking water source of Zhushuqiao reservoir was analysed in terms of management economics and environmental science point of view, and the ecological compensation mechanism and environmental economy were also taken into accounted. At present, the Zhushuqiao reservoir was facing great pressure of water resources ecological environment, and its economic development was limited to water source protection. Ecological compensation mechanism was urgently needed to start. While some questions existed in drinking water source of Zhushuqiao reservoir, such as irrational allocation of water resource demand, ineffective management, single compensation way, low compensation standard. In view of these questions, measures were put forward, such as establishingt water rights market, improving water management and mechanisms, to establish sustainable developing mode of drinking water resource.
  Key words:rural reservoir; ecological compensation; regional impact
  十八大报告中明确提出“加大自然生态系统和环境保护力度。加快水利建设,强化水、大气、土壤等污染防治”。近年来,围绕水资源生态补偿研究正逐步深入[1-4],对水资源管理区内水源生态补偿及生态补偿机制的理论、案例和具体实践都进行了有益的探索,但尚未形成科学生态补偿体系。在以往学者研究基础上,以浏阳市株树桥水库为研究对象,基于对饮用水生态补偿机制的理解,通过实地走访调查,设计最佳的生态补偿标准作为调控水资源的重要手段,探讨科学的生态补偿机制,以期为农村水库水源地生态补偿提供经验参考。
  1 浏阳株树桥水库自然地理和社会经济发展概况
  株树桥水库位于湘水一级支流浏阳河南源小溪河下游,地处浏阳市境内,是长沙市饮用水第二水源,同时也被列为一级水资源保护区。水库集雨面积564 km2,流域处于湘东暴雨区,库区多年平均流量为19.91 m3/s,多年平均径流量为6.66亿m3,是一座多年调节型水库,规模为大Ⅱ型。
  株树桥水库库区内有5个库区乡镇和库区林场以及24个行政村组。库区内共有住户2.43万户,总计人口6.97万人,其中常住居民人口2 387人,农业人口6.93万人。株树桥水库库区的水田以水稻种植为主,为单季稻,旱地主要种植蔬菜、大豆、玉米、红薯等经济作物。
  在株树桥水库库区5~10 km的范围内,分上、中、下段选取3个村进行调查,依次为张坊镇双溪村、小河乡小河村和高坪镇双江村。据调查,张坊镇辖21个村,3.1万人口,有山林2.67 hm2,耕地1 933 hm2,全镇山多谷深坡陡,自然条件垂直变化大,山林面积26 133 hm2,森林覆盖率达65%。张坊镇双溪村位于水库上段区域,耕地总面积138 hm2,总人口1 964人,人均面积为0.07 hm2;林地总面积1 740.8 hm2,人均面积0.89 hm2;水域面积

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