全文获取类型
收费全文 | 1467篇 |
免费 | 34篇 |
国内免费 | 63篇 |
专业分类
安全科学 | 83篇 |
废物处理 | 101篇 |
环保管理 | 168篇 |
综合类 | 180篇 |
基础理论 | 261篇 |
环境理论 | 3篇 |
污染及防治 | 500篇 |
评价与监测 | 172篇 |
社会与环境 | 79篇 |
灾害及防治 | 17篇 |
出版年
2023年 | 37篇 |
2022年 | 151篇 |
2021年 | 121篇 |
2020年 | 48篇 |
2019年 | 64篇 |
2018年 | 79篇 |
2017年 | 86篇 |
2016年 | 90篇 |
2015年 | 50篇 |
2014年 | 74篇 |
2013年 | 172篇 |
2012年 | 65篇 |
2011年 | 91篇 |
2010年 | 62篇 |
2009年 | 48篇 |
2008年 | 47篇 |
2007年 | 41篇 |
2006年 | 37篇 |
2005年 | 23篇 |
2004年 | 25篇 |
2003年 | 23篇 |
2002年 | 23篇 |
2001年 | 19篇 |
2000年 | 19篇 |
1999年 | 11篇 |
1998年 | 7篇 |
1997年 | 3篇 |
1996年 | 3篇 |
1995年 | 8篇 |
1994年 | 5篇 |
1993年 | 3篇 |
1992年 | 3篇 |
1991年 | 2篇 |
1990年 | 2篇 |
1989年 | 4篇 |
1988年 | 2篇 |
1985年 | 3篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1979年 | 2篇 |
1976年 | 1篇 |
1974年 | 1篇 |
1973年 | 1篇 |
1970年 | 1篇 |
1966年 | 1篇 |
1964年 | 1篇 |
1959年 | 1篇 |
排序方式: 共有1564条查询结果,搜索用时 31 毫秒
181.
Alexander L. Metcalf Conor N. Phelan Cassandra Pallai Michael Norton Ben Yuhas James C. Finley Allyson Muth 《Conservation biology》2019,33(5):1141-1150
Widespread human action and behavior change is needed to achieve many conservation goals. Doing so at the requisite scale and pace will require the efficient delivery of outreach campaigns. Conservation gains will be greatest when efforts are directed toward places of high conservation value (or need) and tailored to critical actors. Recent strategic conservation planning has relied primarily on spatial assessments of biophysical attributes, largely ignoring the human dimensions. Elsewhere, marketers, political campaigns, and others use microtargeting—predictive analytics of big data—to identify people most likely to respond positively to particular messages or interventions. Conservationists have not yet widely capitalized on these techniques. To investigate the effectiveness of microtargeting to improve conservation, we developed a propensity model to predict restoration behavior among 203,645 private landowners in a 5,200,000 ha study area in the Chesapeake Bay Watershed (U.S.A.). To isolate the additional value microtargeting may offer beyond geospatial prioritization, we analyzed a new high-resolution land-cover data set and cadastral data to identify private owners of riparian areas needing restoration. Subsequently, we developed and evaluated a restoration propensity model based on a database of landowners who had conducted restoration in the past and those who had not (n = 4978). Model validation in a parallel database (n = 4989) showed owners with the highest scorers for propensity to conduct restoration (i.e., top decile) were over twice as likely as average landowners to have conducted restoration (135%). These results demonstrate that microtargeting techniques can dramatically increase the efficiency and efficacy of conservation programs, above and beyond the advances offered by biophysical prioritizations alone, as well as facilitate more robust research of many social–ecological systems. 相似文献
182.
An improved trend vegetation analysis for non-stationary NDVI time series based on wavelet transform
Rhif Manel Ben Abbes Ali Martinez Beatriz Farah Imed Riadh 《Environmental science and pollution research international》2021,28(34):46603-46613
Environmental Science and Pollution Research - The aim of this paper is to improve trend analysis for non-stationary Normalized Difference Vegetation Index (NDVI) time series (TS) over different... 相似文献
183.
184.
Alsaif Fahad Somily Ali Balbeesi Amal Alhammad Ghadah Almutawa Afnan Altawil Lama 《Environmental science and pollution research international》2020,27(31):38695-38700
Environmental Science and Pollution Research - The possibility of superficial foot mycoses to spread through contaminated mosque carpets between worshipers imposes a great health burden and is... 相似文献
185.
Khan Irfan Saito Hiroshi Ali Ahmad Salah Zhang Bofan Kubuki Shiro 《Journal of Material Cycles and Waste Management》2021,23(6):2266-2277
Journal of Material Cycles and Waste Management - The relationship between local structure and visible-light-activated photocatalytic ability of glass–ceramics prepared from Municipal Solid... 相似文献
186.
Kamarehie Bahram Jafari Ali Ghaderpoori Mansour Azimi Faramarz Faridan Mohammad Sharafi Kiomars Ahmadi Fatemeh Karami Mohammad Amin 《Environmental science and pollution research international》2020,27(30):37514-37526
Environmental Science and Pollution Research - With the rapid growth of population, development of different industries, and production of several ranges of products, the generation of municipal... 相似文献
187.
Banan Ashkan Kalbassi Mohammad Reza Bahmani Mahmoud Sotoudeh Ebrahim Johari Seyed Ali Ali Jonathan M. Kolok Alan S. 《Environmental science and pollution research international》2020,27(10):10658-10671
Environmental Science and Pollution Research - The objective of this study was to evaluate the effect of salinity on the acute and sub-chronic toxicity of silver nanoparticles (AgNPs) in Persian... 相似文献
188.
Ghavidel Akbar Naji Rad Sumayyah Alikhani Hosein Ali Sharari Meraj Ghanbari Alireza 《Journal of Material Cycles and Waste Management》2018,20(2):1179-1187
Journal of Material Cycles and Waste Management - The bioleaching process comprises two mechanisms: direct action of the bacteria and indirect effect of low pH. In this work, the effect of bacteria... 相似文献
189.
Singh Lok Pratap Dhaka Rahul Kumar Ali Dilshad Tyagi Inderjeet Sharma Usha Banavath Srinivasrao Naik 《Environmental science and pollution research international》2021,28(26):34087-34107
Environmental Science and Pollution Research - Nano-titania (n-TiO2), due to its unique photocatalytic and hydrophobic properties, can be used to prepare self-cleaning cement-based smart building... 相似文献
190.
Assessment of oxytetracycline and tetracycline antibiotics in manure samples in different cities of Khuzestan Province,Iran 总被引:2,自引:0,他引:2