The influence of environmental factors and studying community phylogeny at the metacommunity level helps to understand regional ecological processes.
环境因素的影响以及在元社区水平上研究群落系统发育有助于理解区域生态进程。
This generates an important effect on lightening wind and sand harm, improving ecological environment and raising agricultural production level.
这对减轻该区的风沙危害，改善生态环境和提高农业生产水平，都起了重要的作用。
Objective To reveal the effect of ecological environment on trueborn quality of rhizoma of Alisma orientate from molecular level.
目的从分子水平上揭示生态环境对泽泻“道地性”的影响。
The current CBA host cities are mainly at the level of provincial capitals or above, whose ecological environment is rich and diversified.
现役CBA主场城市多为副省及以上级别城市，城市生态环境丰富迥异。
When evaluated ecological water utilization level, industrial, agricultural and living water utilization and nature water utilization should be included.
在进行用水水平评价时，应该考虑工业用水、农业用水、生活用水和人类赖以生存的自然环境用水。
The water-level-fluctuating zone (WLFZ) of suburban reservoir should not only protect the water resources, but also meet the requirements of the ecological landscape.
城郊水库消涨带既要具有水源保护功能又要满足生态景观要求。
Three typos of model pond ecosystems have been designed and used to assess ecological effects of insecticide based on ecosystem level.
报道了三种模型池塘生态系统即池塘微宇宙、池塘中宇宙和模型水陆生态系统的设计、组建与应用研究结果。
Phylogenetic information also indicates the influence of environmental factors and studying community phylogeny at the metacommunity level helps to understand regional ecological processes.
另外，群落谱系结构研究还有助于探讨中性理论、密度制约假说等生态学 理论， 并预测干扰作用下的群落演化趋势。
With the enhancement of urbanization level, researches on city ecological construction is becoming hotspot gradually in global, the idea and theory are maturer and maturer.
随着城市化水平的不断提高，城市生态建设研究逐渐成为全球城市研究的热点，生态建设的思想和理论日趋成熟。
Pick Ecological system is one of the main area ecology structural and functional unit, belong to the highest level of ecology.
生态系统是生态学领域的一个主要结构和功能单位，属于生态学研究的最高层次。
The result showed that the water level changed greatly and the ecological environment was volatile.
结果发现：洪泽湖由于水位变化大，生态环境不稳定；
Forest carbon density is an important indicator reflecting the level of forest ecosystem function in ecological service and product supply.
森林植被碳密度是衡量森林生态系统服务功能和产品供给功能高低的一个重要指标。
Forest carbon density is an important indicator reflecting the level of forest ecosystem function in ecological service and product supply.
森林植被碳密度是衡量森林生态系统服务功能和产品供给功能高低的一个重要指标。
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