祁连山张掖段水电开发对区域生态环境的影响

生态学杂志

祁连山张掖段水电开发对区域生态环境的影响

桂娟^1,3,高海宁²,李宗省^1*,邹海明⁴,袁瑞丰¹

（¹中国科学院西北生态环境资源研究院（筹），内陆河流域生态水文重点实验室/甘肃省祁连山生态研究中心，兰州 730000；²河西学院，甘肃张掖 734000； 3中国科学院大学，北京 100049；⁴青海省水文与水资源勘测局直门达水文站，青海玉树 815000）

出版日期:2019-07-10 发布日期:2019-07-10

The impacts of hydropower development in Zhangye section of Qilian Mountains on regional eco-environment.

GUI Juan^1,3, GAO Hai-ning², LI Zong-xing^1*, ZOU Hai-ming⁴, YUAN Rui-feng¹

(¹Key Laboratory of Ecohydrology of Inland River Basin/Gansu Qilian Mountain Ecological Research Center in Gansu Province, Northwest Institute of Ecoenvironment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; ²Hexi University, Zhangye 734000, Gansu, China; ³University of Chinese Academy of Sciences, Beijing 100049, China; ⁴Qinghai Provincial Hydrology and Water Resources Survey Bureau, Yushu 815100, Qinghai, China).

Online:2019-07-10 Published:2019-07-10

摘要/Abstract

摘要： 2017年7月26日—8月13日，通过实地调研、样方调查、河水和土壤样品分析等方法，评估了祁连山张掖段水电站建设时间、占地面积、水电开发对水质、土壤及生态流量的影响。结果表明：祁连山自然保护区张掖段内水电站建设主要集中在2000—2008年；依据2017年统计数据计算26座水电站总占地面积为798.35 hm²，占祁连山张掖段面积（188×10⁴ hm²）的0.042%，水电工程占地面积较小；祁连山张掖段水电站建设区域内植被盖度、生物量比原生植被分别低27.14%和236.8 g·m^-2；水电站建设区域内水质、土壤状况良好，水电开发对水质、土壤的影响较小；2017年前祁连山张掖段水电开发导致生态水量下降并形成了156.76 km的减水河段。

关键词: 莱州湾, 人工鱼礁, 大型底栖动物

Abstract: From July 26 to August 13, 2017, by the methods of on thespot investigation, plot survey, and the analysis of river water and soil samples, we assessed the impacts of construction time, site area of hydropower stations, and hydropower development on water quality, soil and ecological flow in Zhangye section of Qilian Mountains Nature Reserve. The results showed that the construction of hydropower stations was mainly concentrated from 2000 to 2008. The total area for 26 hydropower stations was 798.35 hm², accounting for 0.042% of total area in study region (1.88 million hm²), which indicated that hydropower projects covered a small area. The vegetation coverage and biomass in the construction areas of the hydropower stations were 27.14% and 236.8 g·m^-2 lower than those of the original vegetation, respectively. The water quality and soil of the areas around hydropower stations were in good conditions, indicating that the water and soil were seldom affected by hydropower development. The hydropower development had led to the decrease of ecological water quantity, causing a waterreduction river section with a length of 156.76 km.

Key words: Laizhou Bay, artificial reef, macrobenthos.

桂娟,高海宁,李宗省,邹海明,袁瑞丰. 祁连山张掖段水电开发对区域生态环境的影响[J]. 生态学杂志.

GUI Juan, GAO Hai-ning, LI Zong-xing, ZOU Hai-ming, YUAN Rui-feng. The impacts of hydropower development in Zhangye section of Qilian Mountains on regional eco-environment.[J]. cje.

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