查询词典 benthon
- 与 benthon 相关的网络例句 [注：此内容来源于网络，仅供参考]
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In this paper, 13 lakes and 2 large-scale reservoirs in Wuhan were investigated, the makeup of species , dominance species and standing biomass of plankton, benthon, hydrophyte, fish and et al were carried out. And the bio-indicate method , diversity index are used to evaluate the water body.
本文对武汉市13个湖泊及2个大型水库浮游生物、底栖动物、大型水生植物、鱼类及其它生物的种类组成、优势种的鉴定及现存量的测定结果进行了分析，运用指示生物法、种多样性指数法对所调查水体进行了水质评价。
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The larger the density of the seaprotecting the greater the benthon index.
堤防在地景上的密度越大，底栖生物歧异度越大，呈现正相关。
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This research regards coastline of Taizhong, Changhua, Yulin as the background, discuss the relation among landscape index and biological index of coast plant, birds, benthon.
中文摘要本研究以台中、彰化、云林海岸线为背景，讨论土地利用的空间景观指数与海岸植物、鸟类、底栖生物的生物歧异度之间的关系。
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In order to understand the influence by the Three Gorges Project and supply basal information of estuary environment before sluice, a study was carried out on the Changjiang Estuary and its adjoining area from 1998 to 2001. This paper discussed mainly the influence by the Three Gorges Project on estuary environment of the Changjiang River. This paper analyses the hydrophysics, deposit environment, hydrochemistry, primary productivity, plankton, benthon and fishery resources of the Changjiang Estuary and its adjoining area, and further the relationship between the environment and runoff of the Changjiang Estuary.
根据调查数据，结合历史资料对三峡水库蓄水前的长江口及邻近海域水文物理、沉积环境、水化学、初级生产力、浮游生物、底栖生物和渔业资源进行了全面分析，并进一步阐明了长江口生态环境与长江入海径流量间的关系；提供了三峡水库蓄水前长江口生态与环境的基础资料，对长江口生态系统健康度作出评价，为长江口生态环境保护与可持续发展奠定了良好的基础。
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The research indicate that the aquatic ecosystem of Wuhan city lakes now is: elementary production and consumption keep high amount, and accumulate in the water bodies, then the benthon ,so much as fish's community to decline seriously, cause the main nutrients cycle and energy circulation in the system is obstructed, that means the "elementary production-elementary consumption-advanced consumption" replaced by the "elementary production-elementary consumption-analyze by itself – reproduction", this circulation of the the nutrients is unfavorable to the system.
生态系统结构研究表明武汉市湖泊水生生态系统目前所处状态：初级生产和初级消费维持较高生产量和现存量，在水体中积累，而较高层次的底栖生物乃致鱼类群落严重衰退，导致系统中主要物质和能量循环：初级生产—初级消费—高级消费受阻，代之而起的是初级生产、初级消费—自行分解—再生产的循环，不利于系统中物质转移。
- 推荐网络例句
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Do you know, i need you to come back
你知道吗，我需要你回来
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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。
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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。