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甘肃省武威市荒漠化现状、成因及其防治对策 被引量:4
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作者 高志海 魏怀东 丁峰 《甘肃林业科技》 2003年第4期9-12,18,共5页
武威市土地荒漠化主要包括沿北部腾格里和巴旦吉林两大沙漠边缘的土地风蚀荒漠化、石羊河下游尾端因农田弃耕而引起的土壤次生盐渍化、武威和古浪南部祁连山中低山区的草场和耕地退化。其荒漠化成因主要是降水量少,蒸发量大,土壤以沙质... 武威市土地荒漠化主要包括沿北部腾格里和巴旦吉林两大沙漠边缘的土地风蚀荒漠化、石羊河下游尾端因农田弃耕而引起的土壤次生盐渍化、武威和古浪南部祁连山中低山区的草场和耕地退化。其荒漠化成因主要是降水量少,蒸发量大,土壤以沙质为主,植被稀少,大风天气频繁,自然生态环境系统极其脆弱等自然因素和人为破坏活动。并提出了今后荒漠化防治的几点对策。 展开更多
关键词 甘肃 武威市 荒漠化 防治对策 土地 风蚀 耕地退化 草场 自然生态环境系统 土壤
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幼儿园二十四节气课程自然环境建设的实践和应用——以广州市第二幼儿园为例 被引量:2
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作者 沈文娜 《江苏幼儿教育》 2018年第2期7-11,共5页
本文以广州市第二幼儿园为例,重点探讨支持幼儿园二十四节气课程的园内自然生态环境系统的建构和应用。广州市第二幼儿园建成了包含传统农耕体验区、城市耕读教育区、二十四节气耕读展示区以及气象体验区四大区域的'二十四节气'... 本文以广州市第二幼儿园为例,重点探讨支持幼儿园二十四节气课程的园内自然生态环境系统的建构和应用。广州市第二幼儿园建成了包含传统农耕体验区、城市耕读教育区、二十四节气耕读展示区以及气象体验区四大区域的'二十四节气'体验园,支撑二十四节气课程的建构与实施,支持幼儿通过直接感知、亲身体验、实际操作的方式来了解节气、感受节气,促进幼儿身心健康发展。 展开更多
关键词 二十四节气课程 自然生态环境系统
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Sustainable Development and the Basic Value of Natural Environment 被引量:1
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作者 Jia Zhong Li Jianhua 《Chinese Journal of Population,Resources and Environment》 2009年第1期89-93,共5页
Contrast with artificial environment, the multi-level self-organizational system of nature has great gain. Sustain-able material environment should respect nature: non-rubbish and super-cycle quality of natural ecosys... Contrast with artificial environment, the multi-level self-organizational system of nature has great gain. Sustain-able material environment should respect nature: non-rubbish and super-cycle quality of natural ecosystem offers the material source of human development, fractal structure of nature offers new field of space and information source to this high-density and information-based society, dissipative structure of nature links the new system of energy with whole ecosystem organi-cally, and life-chain regulation is the base of sustainable life environment. Nature guarantees the physical healthy environ-ment by its all-dimension healthy factor, constructs the mental healthy environment by its quality of co-ordinate and chaos, so that guarantees the whole emergence of sustainable develop-ment on the 'super-science' level. In the view of sustainable development, construction, green economy and human health are basic fields. With the concept of ecosystem regulation, we can relate these fields organically and fulfill the task of human health, welfare and sustainable development. Ecosystem regulation is the base of sustainable development's new para-digm. 展开更多
关键词 sustainable development natural environment ECOSYSTEM HEALTH SELF-ORGANIZATION
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Industrial Ecosystem and the Development of Strategic Emerging Industries 被引量:1
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作者 LiXiaohua Liu Feng 《China Economist》 2013年第6期48-57,共10页
Based on the theories of business ecosystem and national innovation system, this paper proposes a concept of industrial ecosystem. Differ from ecologists and environmentalists who regard industrial ecosystem as the na... Based on the theories of business ecosystem and national innovation system, this paper proposes a concept of industrial ecosystem. Differ from ecologists and environmentalists who regard industrial ecosystem as the natural ecosystems in which material, energy and information circulates, this paper defines industrial ecosystem as a set of factors that are vital to the development of a certain industry and their interrelationship. The industrial ecosystem consists of three sub-systems that are innovation ecosystem, production ecosystem, and application ecosystem, and subsidiary factors that include factor supply, infrastructure, socio-cultural environment, international environment and policy system. The industrial ecosystem is characterized by interdependencies, complex interactions, self-recovery and co-evolution. The development of an industry is' the result of the reaction of the whole industrial ecosystem; therefore, the competition in strategic emerging industries among countries is in essence the competition in industrial ecosystems. Those countries which are able to take the lead in setting up complete industrial ecosystem will occupy advantage in developing strategic emerging industries. Cultivating and developing strategic emerging industries requires promoting the development and coordination of the whole ecosystem. 展开更多
关键词 industrial ecosystem business ecosystem national innovation system strategic emerging industries
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Urban and Industrial Metabolism: Towards Sustainable Planning
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作者 Ma Carmen Ruiz Puente Elena Romero Arozamena 《Journal of Civil Engineering and Architecture》 2012年第2期182-188,共7页
Nowadays, urban planning supposes a key issue to promote sustainable cities' development. In the last decades, the urban growth of developed countries has caused several environmental, social and economic problems, s... Nowadays, urban planning supposes a key issue to promote sustainable cities' development. In the last decades, the urban growth of developed countries has caused several environmental, social and economic problems, such as the inefficient use of resources and infrastructures. Notwithstanding, detailed analysis of population's necessities allows decreasing these drawbacks. These enhancements can foster a more feasible development through technical sustainability criteria. Therefore, the urban metabolism study becomes an essential tool to plan a suitable management for material and energy flows. Industrial Ecology (IE) theory looks for the sustainable integration of human activities on their natural environment. It seeks mimic natural systems performance and their processes. Industrial Metabolism (IM) studies those processes which turns material and energy into products and wastes. The IE final goals aim to promote improvements in process efficiency, decreasing consumption and waste generation through flows recirculation and exchange networks of material and energy. This contribution proposes a new conceptual framework which integrates urban and industrial metabolisms as an opportunity to achieve more efficient and sustainable development. The review of national and international experiences shows the improvements achieved through metabolisms' combination based on the exchanges of residual energy and water streams. 展开更多
关键词 Urban planning urban metabolism industrial metabolism industrial ecology sustainable development.
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Development of the eco-community planning studies under the concept of low-carbon
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作者 Xina Ma 《International Journal of Technology Management》 2013年第8期119-121,共3页
Universality of low-carbon eco- city planning measures, Government regulation, as an important planning means to guide urban development urban; it is an allocation mechanism for land and space resource. Low-carbon eco... Universality of low-carbon eco- city planning measures, Government regulation, as an important planning means to guide urban development urban; it is an allocation mechanism for land and space resource. Low-carbon eco- city planning is especially important for China as it is in a state of rapid economic growth, urbanization acceleration, carbon emissions increase, ecological environment deterioration and intensifying economic transformation. During the process of low-carbon eco-city planning, we must consider the whole range of temporal and spatial distribution of the city and grasp the overall coordination system of time and space. We should regard it as a system of the entire biosphere and regulate urban according to true features of ecosystems, that is in a basically a three-dimensional, integrative compound patterns. We need consider the natural ecological system factors, technological physics factors, economic assets factors, social and cultural factors as well as various humanitarian factors among the urban system structure; consider the impact of the internal and external urban environmental systems; make them interact and influence each other and restrict each other through the planning of the urban system material flow, energy flow, information flow and capital flow; insists the evaluation basic of the healthy development of urbanization and the of exercise macro -control on the dynamic representation" of the city development, the "qualityrepresentatiou" ofthecity' s connotation and the air representation" of the city state in order to overcome the " urban disease " by development, to reduce the " urban disease " by planning, to treat the " urban disease " by management. Only by bringing the design and control into the scope of long-term planning and governing can we effectively monitor and guide the development and construction of low-carbon eco- towns. 展开更多
关键词 eco-community low-carbon ecological civilization
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Scenic Investigation and Assessment of Nature Reserves in Beijing
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作者 CAO Juan LIANG Yiren ZHANG Junhua 《Chinese Forestry Science and Technology》 2005年第4期60-67,共8页
This paper focuses on a detailed investigation and assessment by choosing seven nature reserves with SD (semantic differential). The samples are chosen from the photos obtained in the investigation, and questionnaires... This paper focuses on a detailed investigation and assessment by choosing seven nature reserves with SD (semantic differential). The samples are chosen from the photos obtained in the investigation, and questionnaires are made according to SD. Through the factor analysis of the data from questionnaires, an assessment curve of the samples is drawn, and space coordinate is concluded. The advantages and disadvantages are also discussed. 展开更多
关键词 landscape architecture nature reserve INVESTIGATION EVALUATION semantic differential factoranalysis
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