1) ecological basic flow
生态基流
1.
As the wetted perimeter method has the subjective shortcoming in determination of the inflection point, however, the method of maximum can determine river ecological basic flow objectively to avoid the subjectivity concerned, the probability distribution of river ecological basic flow is then studied on the basis of the wetted perimeter method.
由于湿周法在确定突变点中存在主观性的缺陷,而最大曲率法可客观的确定河流生态基流,避免了主观性。
2) basic ecological flow
生态基流
1.
In order to improve the computation of ecological compensation benefit of reservoir regulation,first,the conception and connotation of basic ecological flow compensation(BEFC) benefits of reservoirs is given in this paper.
为完善水库对生态补偿效益计算,文章首先给出水库生态基流补偿效益概念和内涵。
2.
【Result】The result of the calculating case shows that the basic ecological flow compensation benefits were 28.
【结果】2003年黄河龙羊峡和刘家峡梯级水库对花园口站非汛期的生态基流补偿效益为289。
3) ecological basic flow
生态基流量
1.
Study on the ecological basic flow in Baoji City Reach of Weihe River;
渭河宝鸡市区段河道生态基流量初步研究
2.
Conformity calculation of river ecological basic flows in the Hai He River Basin;
海河流域河流生态基流量整合计算
4) ecological basic discharge in river channel
河道生态基流量
5) base ecological flow in non-flood season
非汛期生态基流量
1.
Based on the unique characteristics of the Yellow River and previous research on its ecological water requirement, the present paper recommends that the water requirement for transport in the flood season and base ecological flow in non-flood season should be both included in the ecological water requirement.
通过分析黄河下游1958～2000年实测生态可用水,探讨生态需水量内涵,根据黄河特殊性及黄河生态需水量的研究现状,将维持和保护河流功能的黄河下游生态需水量分为汛期输运水量和非汛期生态基流量,在平滩流量输运能力最强的前提下,估算黄河下游汛期输运水量为80～120亿m3,根据实测资料估算作为黄河下游水量控制断面花园口水文站和作为河口地区水量控制断面利津水文站的非汛期生态基分别为80～100亿m3和50～60亿m3。
6) river ecosystem
河流生态
1.
By studying the essence of river life and river health and analyzing all the requirements of river itself, human and river ecosystem, it proposes the major healthy indicators of the Yellow River at present as continuous flow, free-and-safe riverbed, suitable water quality, acceptable river ecosystem and certain water supply capacity.
从河流生命和河流健康的本质出发,通过分析黄河自身、人类和河流生态系统的生存需求,认为连续的河川径流、通畅安全的水沙通道、良好的水质、良性运行的河流生态和一定的供水能力是现阶段黄河健康生命的标志,提出用低限流量、平滩流量、湿地面积等9个指示性因子具体表达健康黄河的标志,并给出了这些因子在未来不同阶段的量化指标。
2.
In order to investigate the influences of dams and water gates on the river ecosystems of the Huaihe River,the biological indexes were employed to assess the present status of river ecosystems on typical dam and water gate sections in the Huaihe River.
结果表明,大多数水库处在生态稳定的健康状态;64%的所调查评价的河流生态系统处在不健康或亚健康状态。
3.
This research result will play an key role to improve water environment and river ecosystem of Weihe River.
在对生态需水量概念及方法深入分析的基础上,应用Tennant和最枯月实测径流量多年平均值两种不同的方法,分别计算了渭河中下游林家村、魏家堡、咸阳、临潼、华县五个断面的生态基流量,并最终确定各断面维持生态环境的最低流量,这一探索对改善渭河水环境及促进河流生态系统健康具有重要意义。
补充资料：上升流生态系
上升流生态系
upwelling ecosystems
shangsheng}iu shengtoixl上升流生态系(u娜iling ecosystems)上升流是由于风、地形或其他原因使深层较冷水涌升到表层的过程。海洋的上升流区域大约只占海洋总面积的0.1%，而渔获量却占整个海洋渔获量的50%。重要的上升流区多与大西洋和太平洋亚热带东部边界流有关，如加利福尼亚海流、秘鲁海流、本格拉海流和加那利海流。中国浙江沿海和台湾浅滩也有小规模的上升流。 由于上升流把下层的营养物质带到上层，促使浮游植物的大量繁殖生长。据估计，上升流区的平均初级生产量约为300克碳/平方米·年，是沿岸区(100克碳/平方米·年)的3倍，大洋区(50克碳/平方米·年)的6倍。上升流区的浮游动物平均产量也较高，多数介于20~60毫克碳/平方米·日，为近岸海域的2倍。 上升流区的鱼产量高，也是渔业活动的主要海区，其中本格拉海流(18.36xl护吨)、秘鲁海流(12.24x1)吨)、加那利海流(8.16x IJ吨)、加利福尼亚(5.lxl06吨)。在秘鲁渔业中，鳗鱼占优势，在本格拉和加那利海流中沙丁鱼占优势，在加利福尼亚海流中鳗鱼和无须鳍占优势。秘鲁上升流的特点是秘鲁沿岸终年都存在着上升流，这也许是秘鲁鳗鱼(石i又邵.‘拟215ringe。)能演化成直接摄食浮游植物习性的原因。而另外的上升流系统呈季节性变化，因此浮游动物总是作为浮游植物和鱼类之间的营养媒介而出现。尽管近年来上升流区的渔业产量起伏多变，但上升流区还是最重要的渔业区。(陈其焕)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条