《水生态学杂志》英文摘要写作要求

为促进与国外同行的学术交流，增加论文被国外同行检索和引用的机会，扩大期刊的国际影响力，《水生态学杂志》对论文的英文摘要做出如下要求。英文摘要不符合本要求的稿件，编辑部将在初审后退回作者重写。

1 总体要求

采用报道性摘要类型，要求摘要内容是论文内容的高度浓缩。正文字数400～500单词。摘要中不出现图、表以及参考文献序号。专业词汇准确得当。避免标点、单词拼写错误。选词多样，避免口语化，意群间衔接流畅，提高可读性。

2 题名

    准确、简洁地表述论文的内容。一般10～12个实词，第一个单词的首字母及所有实词的首字母均大写。

3 正文

3.1 内容

包括研究背景、研究目的、材料和方法、结果和结论等5部分。

3.2 时态

研究背景是不受时间影响的普遍事实，应使用一般现在时；如果是对某种研究趋势的概述，则使用现在完成时。

概述研究目的、材料和方法及结果，通常使用一般过去时。

叙述结论，通常使用一般现在时。

3.3 语态

主动语态和被动语态的选用本着自然、妥当的原则，不刻意回避或追求采用某个特定的语态。

3.4 其他

主谓一致，谓语动词在形式上要与主语的单复数对应。

专业术语首次出现要用全称并在括号中标示缩写形式。

数字表达规范。句首数字用英文；文中数字小于等于10的用英文、大于10的用阿拉伯数字，但带单位的和同一意群中的一律用阿拉伯数字（如3 g, 12 m; 6, 14, 20 cells/L; 4.28×105 - 5.17×106 cells/L; 3 orders, 6 families, 20 genera, 130 species）。

4 关键词

   与中文关键词一一对应。

为了让作者更好地理解本要求，特附英文摘要一篇作为参考。

Eutrophication Assessment and Analysis of Nutrient Loading in Hanfeng Lake

ZHENG Zhi-wei, HU Lian, ZOU Xi, PAN Xiao-jie, ZHANG Zhi-yong, WAN Cheng-yan

（Key Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan, 430079）

Abstract: Eutrophication, a serious water quality problem, has been receiving increased national and international attention. Nitrogen and phosphorous are the primary nutrients leading to eutrophication in lakes and reservoirs and, the established management goals for water quality provide impetus for the control of eutrophication. Therefore, the evaluation of eutrophication and the analysis of water resource capacity have gradually become important means for managing water resources. In 2012 and 2013, seasonal monitoring of physical and chemical parameters in the Hanfeng Lake was carried out and parameters included total nitrogen (TN), ammonia nitrogen (NH₃-N), total phosphorous (TP), transparency (SD), chemical oxygen demand (COD_Mn) and chlorophyll a（chl-a）. Samples were collected at 10 sites, located in the Nanhe area (HF1-HF4), Donghe area（HF5-HF6）and the main stem of Xiaojiang (HF7-HF10), respectively. Monitoring data during March, June, September and December of the two years were collected. A comprehensive eutrophic state index was applied to assess the trophic status, and the Vollenweider-Dillon model was used to analyze the nutrient loading and assimilation capacity of Hanfeng Lake. Results show that the water quality of Hanfeng Lake met water quality standards II-V for surface water. The mean values (range in parentheses) for TN, NH₃-N, TP, COD_Mn were 1.41 mg/L (0.76-2.24 mg/L), 0.41 mg/L (0.17- 0.95 mg/L), 0.069 mg/L (0.01-0.106 mg/L), and 4.22 mg/L (2.34-14.6 mg/L), respectively. Water quality in the Donghe area was better than in Xiaojiang and the Nanhe area, with the pollution level lowest in autumn for all three areas. In general, Hanfeng Lake is mesotrophic to slightly eutrophic, with higher nutrient levels in the Nanhe area. Total nitrogen levels were particularly high and, as a single indicator, were always in the eutrophic range, from slight, to moderate and even severe. Analysis showed that loading of COD_Mn, total nitrogen and total phosphorus in Hanfeng lake were 37335 t/a, 1643.8 t/a and 109.1 t/a, respectively. Nutrient loading should be reduced by 36% for nitrogen and by 58% for phosphorus to achieve water quality meeting Level II standards throughout Hanfeng Lake.

Key words: Hanfeng Lake; eutrophication; comprehensive assessment; nutrient loading