全文获取类型
收费全文 | 391篇 |
免费 | 2篇 |
国内免费 | 9篇 |
专业分类
废物处理 | 1篇 |
环保管理 | 115篇 |
综合类 | 43篇 |
基础理论 | 144篇 |
污染及防治 | 41篇 |
评价与监测 | 21篇 |
社会与环境 | 22篇 |
灾害及防治 | 15篇 |
出版年
2024年 | 1篇 |
2023年 | 4篇 |
2022年 | 6篇 |
2021年 | 7篇 |
2020年 | 2篇 |
2019年 | 2篇 |
2018年 | 1篇 |
2017年 | 6篇 |
2016年 | 11篇 |
2015年 | 3篇 |
2014年 | 4篇 |
2013年 | 17篇 |
2012年 | 12篇 |
2011年 | 20篇 |
2010年 | 10篇 |
2009年 | 22篇 |
2008年 | 44篇 |
2007年 | 33篇 |
2006年 | 14篇 |
2005年 | 12篇 |
2004年 | 19篇 |
2003年 | 17篇 |
2002年 | 9篇 |
2001年 | 15篇 |
2000年 | 17篇 |
1999年 | 14篇 |
1998年 | 11篇 |
1997年 | 6篇 |
1996年 | 13篇 |
1995年 | 5篇 |
1994年 | 6篇 |
1993年 | 1篇 |
1992年 | 2篇 |
1991年 | 5篇 |
1990年 | 7篇 |
1989年 | 1篇 |
1988年 | 4篇 |
1987年 | 4篇 |
1986年 | 2篇 |
1985年 | 1篇 |
1984年 | 3篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1979年 | 2篇 |
1978年 | 1篇 |
1977年 | 3篇 |
1974年 | 1篇 |
排序方式: 共有402条查询结果,搜索用时 718 毫秒
131.
V. M. Shestopalov V. A. Ivanov A. S. Bohuslavsky S. I. Kazakov 《Journal of Coastal Conservation》2008,12(4):169-179
The main engineering-geological hazards and their factors of the Mountain Crimea coastal region are considered. A characteristic
shore line site of Cape Kikineiz and its neighboring coastal area near the Katsiveli settlement has been studied in more detail.
The important characteristic of the site is a high diversity of geological conditions with numerous manifestations of dangerous
engineering-geological processes: shore and hydrological network abrasion, loss of slopes and rocks stability, etc. These
processes have intensified during the last decades under the influence of natural and man-induced factors. The results of
preliminary study of geo-environmental situation of the area are presented. The program for further research and possible
recommendations for rational coastal hazard management and area ecological state improvement are outlined. 相似文献
132.
Coastal hazards and community-coping methods in Bangladesh 总被引:1,自引:0,他引:1
Addressing one of the most vulnerable coastal communities in Bangladesh, this paper explores people’s perception and vulnerabilities
to coastal hazards. At the same time, it investigates the methods that communities apply to cope with different coastal hazards.
Findings revealed that people perceived an increase in both the intensity of hazards and their vulnerabilities. In spite of
having a number of socio-economic and locational factors enhancing their vulnerabilities, the community is creating their
own ways to cope with these hazards. For different aspects of life like shelter, employment, water supply, and health, communities
apply different coping methods that vary with the types of hazard. Efforts have also been made by governments and NGOs to
manage coastal hazards. By highlighting both community-coping methods and efforts of development organizations, this paper
attempts to devise an integrated approach for managing the coastal hazards that occur in Bangladesh. 相似文献
133.
John Kiousopoulos 《Journal of Coastal Conservation》2008,12(1):19-25
The general objective of this paper is to trigger off the development of a more comprehensive approach to Hellenic coastal
areas (in the perspective of territorial cohesion), at local level and especially along the non-urban areas close to the sea.
Methodological issues linked to the building of an appropriate coastal database constitute the key goal of this paper (the
space and time scale, the relationship to the already proposed set of indicators, the impact of driving forces and policies,
the possible sources of data and their feasibility etc.). Furthermore, specific emphasis should be given to the choice of
new indicators, particularly for the coastal abiotic environment and the land cover/uses along coastal areas, especially near
the seafront. Those indicators should be able to aid the formation (in the near future) of an algorithm linked to the total
man-made activities in coastal areas. In conclusion, this paper will be considered successful if the just above illustrated
objectives could enrich the argument about the typology of coastal areas and the development of a spatial (coastal) observatory.
Actually, this paper is part of a broader research of the author regarding the monitoring of coastal spatial changes in different
scales (AMICA, “Appraisal of man-made interventions along the Hellenic coastal areas”). This research aims to broaden the
coastal knowledge (not only by means of coastal data) on behalf of all stakeholders been implicated into sustainable spatial
planning, integrated coastal management and the strategic environmental assessment along coastal areas.
相似文献
John KiousopoulosEmail: |
134.
Christine Schleupner 《Journal of Coastal Conservation》2007,11(2):91-103
Accelerated sea level rise and hurricanes are increasingly influencing human coastal activities. With respect to the projected
continuation of accelerated sea level rise and global warming one must count with additional expenses for adaptation strategies
along the coasts. On the mountainous island Martinique the majority of settlements are situated along the coast almost at
sea level. But potential rises in sea level and its impacts are not addressed in coastal management, even though saltwater
intrusion and coastal erosion with increasing offshore loss of sediment are locally already a severe problem. At a sea level
rise of 50 cm, one fourth of Martinique’s coastline will be affected by erosion and one fifth of the islands surface will
have high probability to get flooded during coastal hazards. This is a growth of 5% of the impact area in comparison to present
conditions. This article analyses potential adaptation strategies and argues that the development of a coastal zone management
plan considering sea level rise and its impact area is of utmost importance. Empirical assessment models in combination with
spatial analysis are useful in obtaining statements about coastal impacts concerning sea level rise. This paper sees itself
as recommendation of action not only for Martinique.
相似文献
Christine SchleupnerEmail: |
135.
In this contribution, we propose fishery driven predator release as the cause for the largest grazing event ever observed in the NE Atlantic. Based on the evolving appreciation of limits to population connectivity, published and previously unpublished data, we discuss whether overfishing caused a grazer bloom of the sea urchin (Strongylocentrotus droebachiensis) resulting in overgrazing of more than 2000 km2 kelp (Laminaria hyperborea) forest along Norwegian and Russian coasts during the 1970 s. We show that coastal fisheries likely depleted predatory coastal fish stocks through modernization of fishing methods and fleet. These fish were important predators on urchins and the reduction coincided with the urchin bloom. From this circumstantial evidence, we hypothesize that coastal predatory fish were important in regulating sea urchins, and that a local population dynamics perspective is necessary in management of coastal ecosystems. 相似文献
136.
To examine water circulation patterns of coastal water, 72 seaweed (Sargasso) samples and 27 coastal water samples were collected from coastal areas of the Noto Peninsula, Japan, during the period from December 1998 to June 2002. The (228)Ra and (226)Ra activities of those samples were measured by low-background gamma-ray spectrometry. There was a wide range of activities of (228)Ra (0.5-2Bq/kg-fresh) and (226)Ra (0.5-1.2Bq/kg-fresh) in the Sargasso samples. The (228)Ra/(226)Ra activity ratio of Sargasso samples exhibited seasonal variation with minimum values in June ((228)Ra/(226)Ra= approximately 1) and maximum values in December (1.5-2.5), which was mainly governed by changes in (228)Ra activity. It is also notable that the seasonal variation of the (228)Ra/(226)Ra ratio of Sargasso is in approximate agreement with that of the ambient coastal water. Sargasso samples appear to have retained the (228)Ra/(226)Ra ratio of the ambient coastal waters, and the temporal variations in that ratio provide insight into seasonal changes in water circulation in the Noto Peninsula coastal area. 相似文献
137.
我国沿海地带的海水入侵 总被引:2,自引:2,他引:0
本文阐述了海水入侵灾害的发生机理、危害和我国目前的概况,并指出了海水入侵的发生规律和发展趋势。同时就此问题提出了相应的整治措施,以避免灾害面的进一步扩大。 相似文献
138.
Aram Terchunian Victor Klemas Alberto Segovia Agustin Alvarez Bryon Vasconez Luis Guerrero 《Environmental management》1986,10(3):345-350
A cooperative mangrove mapping project between the Ecuadorian Center for Remote Sensing (CLIRSEN) and the University of Delaware was begun in August 1982. The objectives of the project were to create historical maps of mangrove ecosystem extent and change, while transferring aerial photographic interpretation techniques to Ecuadorian personnel. The result of this cooperation was a series of three 125,000 scale maps of historical mangrove extent and change from 1966 to 1982 in the southern Gulf of Guayaquil. This multitemporal study showed a 16% decrease in mangrove extent and a 27% increase in shrimp pond development. If these rates of change prevail into the future, mangroves in Ecuador will reach parity with shrimp ponds in 1984 and completely disappear by mid-1990. Recognizing the significance of this loss to shellfish and fish production along the coast, Ecuadorian scientists at CLIRSEN have subsequently initiated a nationwide mangrove mapping program to create a historical base for future mangrove management strategies. 相似文献
139.
FloodProBE: technologies for improved safety of the built environment in relation to flood events 总被引:1,自引:0,他引:1
C.C.D.F. van Ree M.A. Van K. Heilemann M.W. Morris P. Royet C. ZevenbergenAuthor vitae 《Environmental Science & Policy》2011,14(7):874-883
The FloodProBE project started as a FP7 research project in November 2009.Floods, together with wind related storms, are considered the major natural hazard in the EU in terms of risk to people and assets. In order to adapt urban areas (in river and coastal zones) to prevent flooding or to be better prepared for floods, decision makers need to determine how to upgrade flood defences and increasing flood resilience of protected buildings and critical infrastructure (power supplies, communications, water, transport, etc.) and assess the expected risk reduction from these measures.The aim of the FloodProBE-project is to improve knowledge on flood resilience and flood protection performance for balancing investments in flood risk management in urban areas. To this end, technologies, methods and tools for assessment purposes and for the adaptation of new and existing buildings and critical infrastructure are developed, tested and disseminated.Three priority areas are addressed by FloodProBE. These are: (i) vulnerability of critical infrastructure and high-density value assets including direct and indirect damage, (ii) the assessment and reliability of urban flood defences including the use of geophysical methods and remote sensing techniques and (iii) concepts and technologies for upgrading weak links in flood defences as well as construction technologies for flood proofing buildings and infrastructure networks to increase the flood resilience of the urban system.The primary impact of FloodProBE in advancing knowledge in these areas is an increase in the cost-effectiveness (i.e. performance) of new and existing flood protection structures and flood resilience measures. 相似文献
140.
Ying Cai Jun Wu Jian Lu Jianhua Wang Cui Zhang 《Frontiers of Environmental Science & Engineering》2022,16(7):96