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鄂东及中南部稻田沟淤积折射出的问题及其解决建议
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作者 陈永银 唐文东 《南方农业》 2019年第5期36-37,共2页
鄂东、中南部长期种植水稻,水稻收获后稻田豁口紧闭,沟淤积严重,渍水横溢,致使大部分农田生态系统恶化。基于此,结合鄂东、中南部地区稻田沟淤积在农业生产上衍生的一系列问题进行讨论,并提出合理化的建议。
关键词 稻田沟 淤积 渍水 生态系统恶化 水稻
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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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Study on Water Pollution Control of Huaihe River and Countermeasures
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作者 Ni Tianhua Sun Ping +1 位作者 Xu Jiangang Diao Weiping 《China Standardization》 2010年第6期8-16,共9页
Huaihe River is one of three major rivers in China with a large population and developed economy. By the 1970s, the water quality of Huaihe River was deteriorating daily and more than a hundred serious pollution accid... Huaihe River is one of three major rivers in China with a large population and developed economy. By the 1970s, the water quality of Huaihe River was deteriorating daily and more than a hundred serious pollution accidents of water quality happened and caused the inestimable losses in the production, life and health of residents along the river and terribly damaged the ecological system of the river. Through the continuous large-scale treatment for more than 10 years, the deterioration of water quality in Huaihe River has been basically inhibited. Nevertheless, the water pollution in Huaihe River is, on the whole, still very serious for many reasons, including special climatic conditions, terrible lack of water resource, obsolete industrial structure and unsound management system for the river, etc. This essay deeply analyzes the rea- sons why the water pollution of Huaihe River is "chronic" and puts forward the corresponding countermeasures for how to continuously improve the water quality of the river. In the end, this essay argues that it still takes 30-50 years or even a longer period, even if every measures are implemented smoothly and strictly, to actually make the water of Huaihe River clean and gradually restore its normal ecological and environmental functions. 展开更多
关键词 Huaihe River water pollution control COUNTERMEASURES
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浑善达克的希望
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作者 张腾岳 《走近科学》 2003年第5期36-38,共3页
春雨潇潇植树忙,年复一年,公众热情不减。但专家告诉我们,我国的大面积沙地其干燥的环境根本无法支撑森林所需要的大量水分,违背自然规律密集植树可能造成生态系统的进一步恶化。人们已经习惯了将人为破坏的环境人为恢复,却往往忽... 春雨潇潇植树忙,年复一年,公众热情不减。但专家告诉我们,我国的大面积沙地其干燥的环境根本无法支撑森林所需要的大量水分,违背自然规律密集植树可能造成生态系统的进一步恶化。人们已经习惯了将人为破坏的环境人为恢复,却往往忽视了大自然的力量,“西部开发科技先行”,依靠科学家们的智慧果敢与当地政府的执着坚定。浑善达克,昔日草原民族的一方乐土,一度成为直接威胁京津地区的重要沙尘源,在今天,自己拯救了自己,又恢复了往日“风吹草低见牛羊”的景象。 展开更多
关键词 中国 沙地 生态系统恶化 内蒙古 浑善达克 治沙工程 防护林 恢复生态 草场退化
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地球的温度能降下来吗?
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作者 拉纳.福尔赫 《森林与人类》 2003年第11期36-37,共2页
关键词 地球温度 全球气候变暖 生态系统恶化 《京都协议书》 二氧化碳排放量
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Human Response to Degradation of Ecosystems 被引量:1
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作者 Krittika Roy 《Journal of Resources and Ecology》 CSCD 2016年第4期261-268,共8页
Our ecosystem provides us with essential services, most of which come without a price tag and hence are assumed to be "free gifts of nature" available in plenty. Much of the neoclassical thought and analysis was bas... Our ecosystem provides us with essential services, most of which come without a price tag and hence are assumed to be "free gifts of nature" available in plenty. Much of the neoclassical thought and analysis was based on this assumption until recently. The dynamic rise in population due to rapid industrialisation and urbanization has caused the realisation that ecosystem services are also limited. Environmental degradation is a common term used to describe the loss or impairment of ecosystem services. Migration is often a consequence of environ- mental degradation; when ecosystem services are impaired and survival comes at stake. But is the degradation of essential ecosystem services sufficient to motivate people to relocate? Through a review of literature on migration and environmental degradation, this paper strives to answer the above question along with exploring ways how monitoring the deterioration of the environment on time can spare human inhabitants of any ecosystem the pains of migration in search of better means of survival and sustenance. 展开更多
关键词 MIGRATION environmental degradation ecosystem services survival sustenance
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