生态系统模型一般参数较多,且在应用时存在时空尺度问题,易产生不确定性。
There are many parameters in the ecosystem model. The variability of parameters at different space-time scales resulted in uncertainties.
应用系统论的观点建立了黑泉库区土地生态系统模型,并对系统多因子进行了定量分析。
Using systematic view, the land ecological evaluation model of Heiquan reservoir area is set up, and many factors in system are analysed quantitatively.
应用系统论的观点建立了跋山库区土地生态系统模型,并对系统多因子进行了定量分析。
Land ecological model system is set up by using systematic idea, and multi-factors are analysed quantitatively.
他的团队从超过200个海洋生态系统模型中搜集了超过68000个关于1880年至2007年的海洋单位面积鱼类数量的数据。
His team studied data from more than 200 Marine ecosystem models, which arrived at more than 68, 000 estimates of fish biomass for years ranging from 1880 to 2007.
生态系统的数学模型同样表明,多样性并不能保证生态系统的稳定性——事实上恰恰相反。
Mathematical models of ecosystems likewise suggest that diversity does not guarantee ecosystem stability—just the opposite, in fact.
数学模型也揭示了食物网可能是不稳定的,顶级肉食性动物的微小改变会对整个生态系统产生巨大影响。
Mathematical models have also revealed that food webs may be unstable, where small changes of top predators can lead to big effects throughout entire ecosystems.
业务流程模型(业务生态系统、业务流程和流对象)。
Business process models (business ecosystems, business processes, and flow objects.)
这些方法将影响数据查询速度、森林生态系统空间分析变量和模型的选择、模型尺度转换及空间分析效率。
These techniques will influence speed querying data. variables and models of spatial analyst for forest ecological system selecting. model level conversion and efficiency of spatial analyst.
在生态系统中,捕食被捕食模型具有很好研究价值。
In an ecological system, predator-prey model is well studied.
这个模型由几个模块组成,每个模块都是一个大系统,共同构成城市复合生态系统。
Each of the model lumps is a big system, and the municipal complex ecosystem is made up of them.
随着科学家的研究深入,进一步认识到多物种间相互影响的重要性,在进行渔业管理时,开始应用海洋生态系统多物种模型。
With a deeper research by scientist, the importance of the interaction of multi-species is realized. A marine ecosystem multi-species model is applied to manage fishery.
本文着重构建了城镇生态系统健康评价的指标体系和模糊评价模型,提出了评价标准。
This paper is emphasized to establish integrated assessment indexes system and fuzzy assessment model of urban ecosystem health, to suggest assessment standard.
最后,该文对水热平衡理论和研究方法、水热平衡耦合模型以及荒漠生态系统的水热结构优化模式等未来的研究方向和重点问题作了分析。
At last, the authors analyze the future research directions and research highlights, such as the theory and research methods, coupling model, and optimized water-heat structure of desert ecosystem.
P SR模型在湿地生态系统健康评价中的应用。
Application of the PSR model to the evaluation of wetland ecosystem health.
该模型包括了两个子模型,即水动力学子模型和生态系统动力学子模型。
This model includes two sub-models: one is hydrodynamic model and the other is ecosystem dynamic model.
为模拟自然界中既包含竞争关系又包含捕食-被捕食关系的生态系统,建立用常微分方程组表示的环状模型。
An annular model for chemostat was depicted by a group of ODE(ordinary differential equation) to imitate the ecosystem which included competition and predator-prey relations in nature.
因此,人们开始研究建立赤潮生态系统动力学模型。
There fore researchers begin to develop dynamic ecological models for red tides.
该理论模型明确了城市生态系统复合承载力的承载基体与承载对象及其承载作用机制。
This theoretic model shows the carrier, the carrying target and the carrying mechanism of the CCC of urban ecosystem.
确定了城市生态系统健康评价指标体系,提出了基于属性理论的城市生态系统健康属性综合评价模型。
This paper confirms urban ecosystem health assessment indicators system, and establishes attribute synthetic assessment model and methods based on the attribute theory.
选择“农业生态系统框图模型”最佳方案的统计方法,是从多种方案中,采用统计决策进行优选。
The statistical method of selecting optimum programme on the block diagram model of agricultural ecosystem is the method of using the statistical decision to seek the optimum from many pro-grammes.
随即,分析LUCC规律,并建立研究区生态系统服务功能单位价值测评模型,测算了该区域VES。
Then the principle of LUCC were analyzed, and the estimating model of ecosystem services which was used to estimate the VES in research area was constructed.
文章以厦门湾为研究区域,基于相应的评估模型,对1980~2005年该区域的围填海工程所导致的生态系统服务价值损失进行回顾性评价。
Based on related models, this paper valuated the marine ecosystem service losses caused by sea reclamation in Xiamen Bay from 1980 to 2005.
应用该系统模型,对慈溪水资源生态系统进行了优化配置。
This system model is used to optimize the allocation of Cixi water ecosystem.
海洋生态系统动力学模型与模拟研究是海洋生态学研究的最重要方面之一。
Marine ecosystem dynamical modelling and simulation study is one of the most important research fields of the marine ecology.
草地放牧系统作为生态系统重要组成部分,对其研究自然也离不开模型的应用。
Model are also used in grassland grazing systems, which are an important part of ecosystems.
针对传统评价方法中量化指标丢失信息的情况,提出应用物元模型进行城市生态系统健康评价。
Aiming at the complexion in which the information lost in index ration, the matter element method was put forward to carry on urban ecosystem health evaluation.
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。
Three typos of model pond ecosystems have been designed and used to assess ecological effects of insecticide based on ecosystem level.
这个小组设计了一个沙漠生态系统的模型那个。他们在画图。
This group is describing a project in which they create a model of eco-system, this particular group has designed a desert eco-system.
本文正是通过对自然界生态系统中植物在生长过程中所受到的环境因素影响作用的研究,提出了基于环境敏感的植物动态生长模型。
By analyzing the effect of environment on the plant in nature, the paper puts forward the model of plant development based on the environment sensitivity.
本文正是通过对自然界生态系统中植物在生长过程中所受到的环境因素影响作用的研究,提出了基于环境敏感的植物动态生长模型。
By analyzing the effect of environment on the plant in nature, the paper puts forward the model of plant development based on the environment sensitivity.
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