One tool for assessing the impact of forestry on the ecosystem is population viability analysis (PVA).
一个评估森林在生态系统中影响的工具是人类生存分析(pva)。
In this paper, we give the theorems of dynamic system as well as applications in the ecosystem and the management system by the qualitative analysis for the state equations.
本文通过对状态方程的定性分析，给出关于离散动态系统的若干定理，以及在生态系统与管理系统中的应用。
The vulnerability assessment of water resources is comprehensive analysis of water resources ecosystem, including the supply and demand of water resources.
气候变化下水资源脆弱性评估是水资源系统的综合评估，主要包括水资源供给与需求平衡的评估。
Based on detailed analysis of the advance for ecosystem service function and its value assessment, the connotation and definition of Marine ecosystem is discussed.
本文在系统分析生态系统服务功能及价值评估的研究进展基础上，探讨了海洋生态系统服务功能的内涵。
The first section of the paper has a general analysis for water resource Payment Ecosystem Service system.
论文的第一部分是对水资源生态效益补偿制度的一般分析。
Such methods were applied as ecosystem services value assessment, GIS and comparative analysis.
研究方法：生态系统服务价值评价方法、GIS技术、比较分析法。
Analysis of the brand ecosystem characteristics and operation rules as example of Ningxia dairy industry, It will have important significance to build brand ecosystem.
本文以宁夏乳制品行业为例，分析品牌生态系统的特点和运行规律，对品牌生态系统的构建与应用具有重要意义。
The paper stress on analysis dynamics of ecosystem and quantitative evaluation indexes in the process of the restoration.
并着重对其恢复过程中生态系统动态、定量化的评价指标进行了初步研究。
By the analysis on Laoche village's cultural ecosystem, researcher found that the root of inheritance decline of Tujia Brocade crafts is the unbalance of Laoche village's old cultural ecosystem.
通过对变迁前后捞车村文化生态系统的分析，本研究发现导致土家族织锦工艺传承式微的根源就在于它赖以生存的旧有文化生态系统失衡。
The structure of brand ecosystem is put forth by making an analysis of the ecological substance of the brand question. The dynamics principle of brand ecosystem is generalized.
通过分析品牌问题的生态学实质，提出品牌生态系统的结构，并就品牌生态系统的动力学机制进行了归纳。
The second chapter shows the work I do, introduces a unified of micro and macro ecosystem based energy and makes an analysis of the species characteristic.
第二章中，介绍了我所作的工作，建立了一个基于能量的描述宏观和微观的统一模型，对物种特性进行了分析。
This article first defined the supply chain commercial ecosystem and carried on the analysis to the system operation mechanism and the system structure pattern.
文章首先从供应链商业生态系统的定义开始，对系统的特征、运作机制及系统的结构模式进行了分析。
The energy analysis of agro-ecosystems from the view point of energy flow is a quantitative study on the function of agro-ecosystem, and is one of the most important aspects in agro-ecosystem study.
农业生态系统的能量分析从能流着手进行农业生态系统的功能量化分析，是农业生态系统重要的研究方法之一。
Secondly, using the AHP method, an integrated spatial analysis model for Lashihai ecosystem health study was constructed comprehensively and the 6-level assessment criterion has been established.
然后，采用层次分析方法（AHP），融合自然综合指标、人文因素指标在内的生态系统健康综合评价模型，确定6级的生态系统健康评估标准；
The main research progress in China and oversea on system analysis and modeling for rice, soybean, alfalfa and their main insect pest ecosystem is surveyed.
本文综述了水稻、大豆、苜蓿三大作物及其主要害虫的系统分析和模拟模型在国内外的主要研究成就。
By using outdoor pot-culture method combined with biological magnetic effect analysis, this paper studied the effect of soil magnetization on soil-wheat ecosystem health.
应用室外盆栽试验方法，将土壤磁效应与生物磁效应相结合，研究了磁处理土壤对土壤小麦系统健康的影响。
By using outdoor pot-culture method combined with biological magnetic effect analysis, this paper studied the effect of soil magnetization on soil-wheat ecosystem health.
应用室外盆栽试验方法，将土壤磁效应与生物磁效应相结合，研究了磁处理土壤对土壤小麦系统健康的影响。
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