您要查找的是不是:
- Regional ecological patterns 城市生态系统
- The regional ecological system is fragile. 区域生态系统脆弱。
- Regulation and rebuilding of landscape structure are the keys to redevelop the regional safe ecological pattern. 景观结构的调整和重建是构建安全的区域生态格局的关键途径。
- Four-in-one courtyard ecological pattern and its benefit analysis in Northern Shaanxi. 陕北四位一体庭院生态模式及其效益分析。
- Results Landscape scale is the right scale to assess regional ecological Security. 结果景观尺度是区域生态安全评价的适宜尺度。
- Ecological pattern on the breeding fish in high water level above land in Dafeng coastal beach. 大丰市沿海滩涂大匡围高水体养殖生态模式研究。
- The concepts and the computative measures of time and regional ecological indices were put forward. 同时提出时间生态指数和地区生态指数的概念和计算方法。
- At present, the quality of the regional ecological environment is an important issue that muse be firstly studied and resolved. 区域生态环境质量问题,是当今全人类共同面对、必须优先研究并且迫切需要解决的重大问题。
- Regional ecological security research has the macroscopic and target characteristics, and the assessment standards are relative and in development. 区域生态安全研究具有宏观性和针对性的特点,评价标准具有相对性和发展性。
- By the analysis of the tendency of regional ecological security from 1990 in Yulin, we can find that ecological security of Yulin presents a power function development. 通过对榆林市1990年以来生态安全变化趋势分析可知:榆林市的生态安全状况呈现出幂函数发展态势。
- Bamboo pulp industry is beneficial to the forest resources conservation by "substituting bamboo for wood", the mountain region ecological environ... 提出了加大投资力度、培育规模化的优质原料基地,选择优良竹种、提高造纸原料质量等加快竹浆产业发展的具体措施。
- regional ecological security pattern 区域生态安全格局
- Liaohe delta wetland's tourism exploitation is a ecological pattern which has strong ecological protection consciousness, because wetland tourism resources is vulnerable and can be easily influenced. 基于辽河三角洲湿地生态系统的脆弱性和敏感性,应采取具有强烈湿地生态保护意识的湿地旅游生态开发模式。
- Abstract:Urban wetlands have important ecological and environmental functions and aesthetic entertainment value, and cultural and historical value, and play an important role in maintaining regional ecological balance and protecting biological diversity. 摘要:城市湿地具有重要的生态和环境功能以及美学娱乐价值、文化历史价值,在维持区域生态平衡,保护生物多样性方面具有重要作用。
- From the system of evaluation system and the model of ecological security, this paper researches the goal and task for applying data mining in expert system of regional ecological security assessment. 摘要从生态安全模型与评价指标体系入手,研究了数据挖掘技术在区域生态安全评价专家系统中的应用目标与任务;
- The thesis aims to solving the problem of mode choosing and appraising in regional ecological management, using the combination method of quantitative research and qualitative research. 本论文的目的就是应用定性研究和定量研究结合的方法,解决区域生态管理的模式选择与评价问题。
- The means of seting up ecological assessment unit based on the little watershed division technology and the district unit could preferably reflect the changing trend of regional ecological quality. 基于小流域分割技术和行政单元进行生态评价单元划分评价单元的方法,较好的反映了区域生态质量变化趋势。
- Forman R T T.Some general principles of landscape and regional ecology[J].Landscape Ecology, 1995(10) 133-142. [角媛梅;肖笃宁;马明国.;河西走廊典型绿洲景观格局比较研究[J]
- Informational asymmetric was obstructer interfering with making sure the direction of the program of the regional ecology construction. 摘要信息不对称已成为区域生态建设规划中明确规划方向的障碍。
- The author suggests that the region ecologic discrepancies and the different productivity of soil CO2 is the main cause of the variability of the stalagmite carbon isotope. 作者认为,洞穴区域性生态差异与土壤CO2产率不同是导致石笋碳同位素复杂多变的主要原因。
