期刊文献+
共找到4篇文章
< 1 >
每页显示 20 50 100
新疆艾比湖流域生态环境保护修复治理的基本思路及对策 被引量:2
1
作者 雷小牛 李宏健 +4 位作者 刘艳红 许文强 唐虎 巴音查汗 张新利 《水利发展研究》 2023年第5期38-48,共11页
新疆艾比湖流域作为山水林田湖草沙生命共同体的典型,是相互依存相互影响的生态系统,在北疆甚至全国影响深远。稳定河湖格局是保护艾比湖流域水环境的基础与核心。文章从艾比湖水面面积、需水量、水质,湖滨湿地面积、需水量、甘家湖需... 新疆艾比湖流域作为山水林田湖草沙生命共同体的典型,是相互依存相互影响的生态系统,在北疆甚至全国影响深远。稳定河湖格局是保护艾比湖流域水环境的基础与核心。文章从艾比湖水面面积、需水量、水质,湖滨湿地面积、需水量、甘家湖需水量等核心指标和落实政策综合管理等方面对艾比湖流域生态环境整体保护、系统修复、综合治理提出基本思路及对策。实现生态环境修复的整体性、系统性、科学性、可操作性和长效机制,夯实社会稳定和长治久安总目标的社会基础。 展开更多
关键词 艾比湖流域 生态环境 保护修复治理 新疆维吾尔自治区
下载PDF
废弃露天矿山生态保护修复治理技术
2
作者 闫东飞 《中文科技期刊数据库(文摘版)工程技术》 2023年第4期77-79,共3页
伴随社会经济的整体提升,人们对于各类矿物的需求量逐渐增加,这也是采矿活动日益频繁的主要原因。而随着矿物的采掘殆尽,原本采矿活动频繁的矿山区域逐渐冷清,遗留下了诸多废弃露天矿山,其对周边的地形地貌、生态环境造成了严重影响,所... 伴随社会经济的整体提升,人们对于各类矿物的需求量逐渐增加,这也是采矿活动日益频繁的主要原因。而随着矿物的采掘殆尽,原本采矿活动频繁的矿山区域逐渐冷清,遗留下了诸多废弃露天矿山,其对周边的地形地貌、生态环境造成了严重影响,所带来的生态经济损失无法估量。为此,针对此种情况,选择并及时落实相应的生态保护修复治理措施极为关键。文章以某地区为例,首先分析了废弃露天矿山所带来的主要地质环境问题,并从多个角度阐述了生态保护修复治理技术应用要点,希望能够为同行业工作者提供一些帮助。 展开更多
关键词 废弃露天矿山 地质环境问题 生态保护修复治理技术
下载PDF
Nutrient-enhanced n-alkanes biodegradation and succession of bacterial communities
3
作者 SUN Yanyu WANG Hui +3 位作者 I LI Junde WANG Bin QI Cancan HU Xiaoke 《Journal of Oceanology and Limnology》 SCIE CAS CSCD 2018年第4期1294-1303,共10页
Bioremediation, is an effective and environment-friendly method of cleaning up crude oil pollution after an oil spill. However, the in situ bioremediation of crude oil is usually inhibited by deficiency of inorganic n... Bioremediation, is an effective and environment-friendly method of cleaning up crude oil pollution after an oil spill. However, the in situ bioremediation of crude oil is usually inhibited by deficiency of inorganic nutrients. To understand the effects of nutrient addition on the bioremediation of crude oil and the succession of bacterial communities during process of bioremediation, microcosms containing oilcontaminated sediments were constructed and biodegradation of crude oil was assessed based on the depletion of different ingredients. We used two culture-independent methods, denaturing gradient gel electrophoresis and a 16 S rRNA gene based clone library, to analyze the succession of bacterial communities. The results suggested n-alkanes were degraded after 30 days and that nutrient amendments significantly improved the efficiency of their biodegradation. Moreover, oil contamination and nutrient amendments could dramatically change bacterial community structures. Lower diversity was detected after being contaminated with oil. For instance, bacterial clones affiliated with the phylum Armatimonadetes, Firmicutes, Gemmatimonadetes, and Planctomycetes and the class Deltaproteobacteria and Epsilonproteobacteria could not be identified after 30 days of incubation with crude oil. However, "professional hydrocarbonocastic bacteria" became abundant in samples treated with oil during the bioremediation period, while these clones were almost completely absent from the control plots. Interestingly, bioinformatics analysis showed that even when dramatic differences in oil biodegradation efficiency were observed, bacterial communities in the plots with nutrient amendments were not significantly different from those in plots treated with oil alone. These findings indicated that nutrient amendments could stimulate the process of biodegradation but had less impact on bacterial communities. Overall, nutrient amendments might be able to stimulate the growth of n-alkane degrading bacteria. 展开更多
关键词 BIOREMEDIATION nutrient-enhanced bacterial communities N-ALKANE
下载PDF
Research on Ecological Protection and Restoration Measures in Altay Region based on the Coupling Perspective of the Mountains-Rivers-Forests-Farmlands-Lakes-Grasslands System 被引量:9
4
作者 LI Yi LIU Yujie +3 位作者 ZHANG Qiang ZHU Sufeng LIU Hao LIU Shufang 《Journal of Resources and Ecology》 CSCD 2021年第6期791-800,共10页
The adoption of both Nature-based Solutions(NbS)and a system perspective is a hot issue and an area in which there is much room for improvement in ecological protection and restoration.The study takes Altay region as ... The adoption of both Nature-based Solutions(NbS)and a system perspective is a hot issue and an area in which there is much room for improvement in ecological protection and restoration.The study takes Altay region as an example,an area located in Xinjiang,China,which is an important ecological corridor of the national key functional area and the core area of the Belt and Road but has a fragile ecological environment and needs much enhancement in ecological protection and restoration.Guided by the concept of"mountains-rivers-forestsfarmlands-lakes-grasslands(MRFFLG)system is a life community",the coupling relationship of the various MRFFLG elements,the main ecological environmental problems and the integrated countermeasures for protection and restoration in Altay region have been analyzed in this study.The study shows that Altay region has a typical meta-ecosystem of mountain,oasis,and desert,and the connections by rivers and lakes make the ecosystem links within the region much closer.The interweaving of resource-environmental-ecological issues of the aquatic ecosystem,degradation of the quality of terrestrial ecosystems such as forests,grasslands and farmlands,the increased ecosystem fragmentation and ecological risks are the major ecological environmental issues in this region.This study takes the improvement of the ecosystem health and function in Altay region as the core goal of regional ecological protection and restoration.First,we establish a zoning governance pattern from the perspective of ecosystem integrity;second,we design governance strategies for different zones with the goal of synergistic improvements in the ecosystem functions;and finally,we clarify the key engineering tasks in different zones from the perspective of ecosystem services.Ecological conservation and restoration of the MRFFLG system is a prime example of the application and development of NbS in China.This paper constructs an analytical framework for identifying regional life communities,diagnosing ecological protection and restoration of zoning problems,and proposing classified solutions for ecological protection tasks for the protection of the MRFFLG system.This research will enrich the theory and technology for the protection and restoration of MRFFLG systems,and provide guidance for the practice of ecological protection and restoration in Altay region. 展开更多
关键词 mountains-rivers-forests-farmlands-lakes-grasslands life community coupling relationships ecological protection and restoration systematic management Altay region
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部