全文获取类型
收费全文 | 24182篇 |
免费 | 262篇 |
国内免费 | 144篇 |
专业分类
安全科学 | 559篇 |
废物处理 | 1032篇 |
环保管理 | 2881篇 |
综合类 | 5004篇 |
基础理论 | 6459篇 |
环境理论 | 11篇 |
污染及防治 | 6026篇 |
评价与监测 | 1486篇 |
社会与环境 | 985篇 |
灾害及防治 | 145篇 |
出版年
2022年 | 174篇 |
2021年 | 171篇 |
2018年 | 295篇 |
2017年 | 296篇 |
2016年 | 465篇 |
2015年 | 365篇 |
2014年 | 558篇 |
2013年 | 1762篇 |
2012年 | 675篇 |
2011年 | 900篇 |
2010年 | 765篇 |
2009年 | 773篇 |
2008年 | 949篇 |
2007年 | 1002篇 |
2006年 | 871篇 |
2005年 | 745篇 |
2004年 | 727篇 |
2003年 | 728篇 |
2002年 | 683篇 |
2001年 | 821篇 |
2000年 | 643篇 |
1999年 | 393篇 |
1998年 | 312篇 |
1997年 | 319篇 |
1996年 | 308篇 |
1995年 | 377篇 |
1994年 | 348篇 |
1993年 | 306篇 |
1992年 | 302篇 |
1991年 | 304篇 |
1990年 | 327篇 |
1989年 | 301篇 |
1988年 | 275篇 |
1987年 | 250篇 |
1986年 | 240篇 |
1985年 | 232篇 |
1984年 | 271篇 |
1983年 | 222篇 |
1982年 | 293篇 |
1981年 | 234篇 |
1980年 | 210篇 |
1979年 | 233篇 |
1978年 | 207篇 |
1977年 | 178篇 |
1976年 | 157篇 |
1975年 | 163篇 |
1974年 | 174篇 |
1973年 | 188篇 |
1972年 | 163篇 |
1971年 | 160篇 |
排序方式: 共有10000条查询结果,搜索用时 578 毫秒
801.
REED F. NOSS ERICA FLEISHMAN† DOMINICK A. DELLASALA‡ JOHN M. FITZGERALD§ MART R. GROSS MARTIN B. MAIN†† FIONA NAGLE‡‡ STACEY L. O'MALLEY JON ROSALES§§ 《Conservation biology》2009,23(4):825-833
Abstract: The Society for Conservation Biology (SCB) can enhance conservation of biodiversity in North America by increasing its engagement in public policy. Toward this end, the North America Section of SCB is establishing partnerships with other professional organizations in order to speak more powerfully to decision makers and taking other actions—such as increasing interaction with chapters—geared to engage members more substantively in science-policy issues. Additionally, the section is developing a North American Biodiversity Blueprint, which spans the continental United States and Canada and is informed by natural and social science. This blueprint is intended to clarify the policy challenges for protecting continental biodiversity, to foster bilateral collaboration to resolve common problems, and to suggest rational alternative policies and practices that are more likely than current practices to sustain North America's natural heritage. Conservation scientists and practitioners can play a key role by drawing policy makers' attention to ultimate, as well as proximate, causes of biodiversity decline and to the ecological and economic consequences of not addressing these threats. 相似文献
802.
Abstract: As zebra mussels (Dreissena polymorpha) continue to spread among inland lakes of the United States and Canada, there is growing interest from professionals, citizens, and other stakeholders to know which lakes are likely to be colonized by zebra mussels. Thus, we developed a classification of lake suitability for zebra mussels on the basis of measured or estimated concentrations of dissolved calcium in lake water and applied the classification to >11,500 lakes in Wisconsin and the Upper Peninsula of Michigan. The majority of lakes (58%) were classified as unsuitable (<10 mg/L Ca) for survival and reproduction of zebra mussels, 27% were identified as suitable (≥21 mg/L Ca), and 15% were classified as borderline suitable (≥10 and <21 mg/L Ca). Of the 77 inland lakes with confirmed zebra mussel records for which data on dissolved calcium were available, our method classified 74 as suitable and 3 as borderline suitable. To communicate this lake‐specific suitability information and to help prioritize regional efforts to monitor and prevent the expansion of zebra mussels and other invasive species, we developed a web‐based interface (available from http://www.aissmartprevention.wisc.edu/ ). Although we are still uncertain of how access to suitability information ultimately affects decision making, we believe this is a useful case study of building communication channels among researchers, practitioners, and the public. 相似文献
803.
Macías-Vargas José-Alberto Campos-Mañas Marina Celia Agüera Ana Sánchez Pérez José Antonio Ramírez-Zamora Rosa-María 《Environmental science and pollution research international》2021,28(19):24008-24022
Environmental Science and Pollution Research - In this work, the activated persulfate oxidation of ciprofloxacin (CIP) using a low-grade titanium ore under sunlight or simulated sunlight were... 相似文献
804.
Suneel V. Sathish Kumar S. Balaji R. Vethamony P. 《Environmental science and pollution research international》2021,28(14):17181-17199
Environmental Science and Pollution Research - Formation of oil-suspended sediment aggregates (OSAs) is believed to be one of the natural cleaning processes in the marine environment. In this... 相似文献
805.
Vega-Millán Christian B. Dévora-Figueroa Ana G. Burgess Jefferey L. Beamer Paloma I. Furlong Melissa Lantz R. Clark Meza-Figueroa Diana O´Rourke Mary Kay García-Rico Leticia Meza-Escalante Edna R. Balderas-Cortés José J. Meza-Montenegro Maria M. 《Environmental science and pollution research international》2021,28(26):34355-34366
Environmental Science and Pollution Research - Environmental arsenic exposure in adults and children has been associated with a reduction in the expression of club cell secretory protein (CC16) and... 相似文献
806.
Carl Folke Stephen Polasky Johan Rockstrm Victor Galaz Frances Westley Michle Lamont Marten Scheffer Henrik
sterblom Stephen R. Carpenter F. Stuart Chapin III Karen C. Seto Elke U. Weber Beatrice I. Crona Gretchen C. Daily Partha Dasgupta Owen Gaffney Line J. Gordon Holger Hoff Simon A. Levin Jane Lubchenco Will Steffen Brian H. Walker 《Ambio》2021,50(4):834
The COVID-19 pandemic has exposed an interconnected and tightly coupled globalized world in rapid change. This article sets the scientific stage for understanding and responding to such change for global sustainability and resilient societies. We provide a systemic overview of the current situation where people and nature are dynamically intertwined and embedded in the biosphere, placing shocks and extreme events as part of this dynamic; humanity has become the major force in shaping the future of the Earth system as a whole; and the scale and pace of the human dimension have caused climate change, rapid loss of biodiversity, growing inequalities, and loss of resilience to deal with uncertainty and surprise. Taken together, human actions are challenging the biosphere foundation for a prosperous development of civilizations. The Anthropocene reality—of rising system-wide turbulence—calls for transformative change towards sustainable futures. Emerging technologies, social innovations, broader shifts in cultural repertoires, as well as a diverse portfolio of active stewardship of human actions in support of a resilient biosphere are highlighted as essential parts of such transformations. 相似文献
807.
Laffont Laure Menges Johanna Goix Sylvaine Gentès Sophie Maury-Brachet Régine Sonke Jeroen E. Legeay Alexia Gonzalez Patrice Rinaldo Raphaëlle Maurice Laurence 《Environmental science and pollution research international》2021,28(43):60609-60621
Environmental Science and Pollution Research - The aim of the study was to determine if gold-mining activities could impact the mercury (Hg) concentrations and isotopic signatures in freshwater... 相似文献
808.
Carvalho Geila S. Oliveira Jakeline R. Vasques Isabela C. F. Santana Monna Lysa T. Justi Marina Job Marcel T. P. de Lima Francielle R. D. Marques João José 《Environmental science and pollution research international》2021,28(35):48427-48437
Environmental Science and Pollution Research - Potentially toxic elements (PTEs) are of great concern in steel mill wastes. Therefore, in order to use them as potential fertilizers in soil, risk... 相似文献
809.
Brovini Emília Marques Cardoso Simone Jaqueline Quadra Gabrielle Rabelo Vilas-Boas Jéssica Andrade Paranaíba José R. Pereira Renata de Oliveira Mendonça Raquel Fernandes 《Environmental science and pollution research international》2021,28(43):60635-60648
Environmental Science and Pollution Research - Glyphosate is the most used herbicide worldwide. Many studies have reported glyphosate risks to aquatic organisms of different trophic levels.... 相似文献
810.
Özer Betül Yay Aliye Suna Erses 《Environmental science and pollution research international》2021,28(45):63867-63877
Environmental Science and Pollution Research - Waste-to-energy approaches are becoming increasingly important around the world, and municipal solid waste (MSW) as a renewable and sustainable energy... 相似文献