黑河中上游大型底栖动物栖息地适宜度评估

doi:10.13292/j.1000-4890.202104.010

生态学杂志 ›› 2021, Vol. 40 ›› Issue (4): 1116-1127.doi: 10.13292/j.1000-4890.202104.010

黑河中上游大型底栖动物栖息地适宜度评估

王昱^1,2,3*,左一锋¹,冯起³,李宝龙¹,孔德星¹,张昕雨¹,卢晗¹,汪双¹

(¹兰州理工大学能源与动力工程学院，兰州 730050；²兰州理工大学西部能源与环境研究中心，兰州 730050；³中国科学院西北生态环境资源研究院内陆河流域生态水文重点实验室，兰州 730000)

出版日期:2021-04-10 发布日期:2021-04-13

Assessment of macrozoobenthos habitat suitability in the upper and middle reaches of the Heihe River.

WANG Yu^1,2,3*, ZUO Yi-feng¹, FENG Qi³, LI Bao-long¹, KONG De-xing¹, ZHANG Xin-yu¹, LU Han¹, WANG Shuang¹

(¹College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China; ²Western China Energy & Environment Research Center, Lanzhou University of Technology, Lanzhou 730050, China; ³Key Laboratory of Ecohydrology of Inland River Basin, Northwest Institute Ecoenvironment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China).

Online:2021-04-10 Published:2021-04-13

摘要/Abstract

摘要： 为评估黑河中上游大型底栖动物栖息地的适宜度，选取黑河中上游优势种水蜘蛛(Argyroneta aquatica)为指示物种，从栖息地环境因子中筛选出溶解氧（DO）、水温(WT)和底质(SD)3个环境因子作为栖息地指示因子，建立栖息地适合曲线，并计算了栖息地适宜度指数(HSI)。结果表明：水蜘蛛偏好卵石质河床，其最适溶解氧(DO)浓度范围为7.21～9.17 mg·L^-1，最适水温(WT)范围为17.25～22.10 ℃；黑河中上游HSI均值为上游支流0.66、上游干流0.63、中游0.81；黑河上游支流和干流对于大型底栖动物来说处于适宜状态，中游处于最适宜状态；空间差异性分析表明，人类活动对黑河上游支流和中游大型底栖动物的栖息地几乎没有影响，但水温是制约上游支流栖息地适宜度的主要因素，而梯级水库建设对上游干流的大型底栖动物栖息地影响较大。

关键词: 黑河流域, 大型底栖动物, 栖息地, 适宜度

Abstract: We assessed the habitat suitability of macrobenthos in the upper and middle reaches of the Heihe River, with the dominant species Argyroneta aquaticaas the indicator species. Three indicator factors, including dissolved oxygen (DO), water temperature (WT), and sediment (SD), were selected from the habitat environmental factors. The habitat suitability curves of the three indicator factors were established, and the habitat suitability index (HSI) of A. aquatica at each site was calculated. The results showed that A. aquatica prefers pebble riverbeds, with the ranges of optimum dissolved oxygen (DO) concentration being 7.21-9.17 mg·L^-1, and the range of optimum water temperature (WT) being 17.25-22.10 ℃. The average HSI values in the upper and middle reaches of the Heihe River were 0.66 for the upper tributary, 0.63 for the upper mainstream, and 0.81 for the middle reaches. The upper tributary and upper mainstream reaches of Heihe River were under a suitable state, and the middle reaches were under the most suitable state for macrozoobenthos. Results of spatial variability analysis showed that human activities had little impact on the habitats of macrozoobenthos in the upper tributary and middle reaches of the Heihe River. Water temperature was the main factor restricting the habitat suitability of the upper tributary. The construction of cascade reservoir was an important factor affecting the habitat of macrozoobenthos in the upper reaches of Heihe River.

Key words: Heihe River, macrozoobenthos, habitat, suitability.

王昱, 左一锋, 冯起, 李宝龙, 孔德星, 张昕雨, 卢晗, 汪双. 黑河中上游大型底栖动物栖息地适宜度评估[J]. 生态学杂志, 2021, 40(4): 1116-1127.

WANG Yu, ZUO Yi-feng, FENG Qi, LI Bao-long, KONG De-xing, ZHANG Xin-yu, LU Han, WANG Shuang. Assessment of macrozoobenthos habitat suitability in the upper and middle reaches of the Heihe River.[J]. Chinese Journal of Ecology, 2021, 40(4): 1116-1127.

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黑河中上游大型底栖动物栖息地适宜度评估

Assessment of macrozoobenthos habitat suitability in the upper and middle reaches of the Heihe River.

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