全文获取类型
收费全文 | 1149篇 |
免费 | 8篇 |
国内免费 | 28篇 |
专业分类
安全科学 | 11篇 |
废物处理 | 56篇 |
环保管理 | 147篇 |
综合类 | 98篇 |
基础理论 | 196篇 |
污染及防治 | 405篇 |
评价与监测 | 209篇 |
社会与环境 | 61篇 |
灾害及防治 | 2篇 |
出版年
2023年 | 33篇 |
2022年 | 75篇 |
2021年 | 60篇 |
2020年 | 12篇 |
2019年 | 26篇 |
2018年 | 38篇 |
2017年 | 34篇 |
2016年 | 53篇 |
2015年 | 27篇 |
2014年 | 49篇 |
2013年 | 146篇 |
2012年 | 55篇 |
2011年 | 63篇 |
2010年 | 50篇 |
2009年 | 47篇 |
2008年 | 64篇 |
2007年 | 43篇 |
2006年 | 43篇 |
2005年 | 34篇 |
2004年 | 31篇 |
2003年 | 29篇 |
2002年 | 20篇 |
2001年 | 17篇 |
2000年 | 9篇 |
1999年 | 10篇 |
1998年 | 4篇 |
1997年 | 7篇 |
1996年 | 6篇 |
1993年 | 5篇 |
1992年 | 7篇 |
1991年 | 8篇 |
1990年 | 3篇 |
1989年 | 5篇 |
1988年 | 3篇 |
1987年 | 8篇 |
1986年 | 4篇 |
1984年 | 2篇 |
1982年 | 5篇 |
1980年 | 2篇 |
1978年 | 4篇 |
1976年 | 6篇 |
1975年 | 4篇 |
1974年 | 2篇 |
1972年 | 3篇 |
1969年 | 5篇 |
1968年 | 4篇 |
1965年 | 2篇 |
1959年 | 2篇 |
1957年 | 3篇 |
1956年 | 2篇 |
排序方式: 共有1185条查询结果,搜索用时 0 毫秒
91.
Environment, Development and Sustainability - With rise in population growth and increasing trend towards urbanization, urban spaces have become ‘hot spots’ for intensive resource use... 相似文献
92.
Dave Niyam Varadavenkatesan Thivaharan Singh Ram Sharan Giri Balendu Shekher Selvaraj Raja Vinayagam Ramesh 《Environmental science and pollution research international》2021,28(42):58857-58871
Environmental Science and Pollution Research - Green macroalgae comprise significant amount of structural carbohydrates for their conversion to liquid biofuels. However, it generally relies on... 相似文献
93.
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
94.
Cadmium accumulation and its influence on lipid peroxidation and antioxidative system in an aquatic plant, Bacopa monnieri L 总被引:8,自引:0,他引:8
Bacopa monnieri L. plants exposed to 10, 50, 100 and 200 microM cadmium (Cd) for 48, 96 and 144 h were analysed with reference to the accumulation of metal and its influence on various enzymatic and non-enzymatic antioxidants, thiobarbituric acid reactive substances (TBARS), photosynthetic pigments and protein content. The accumulation of Cd was found to be increased in a concentration and duration dependent manner with more Cd being accumulated in the root. TBARS content of the treated roots and leaves increased with increase in Cd concentration and exposure periods, indicating the occurrence of oxidative stress. Induction in the activities of superoxide dismutase (SOD), ascorbate peroxidase (APX) and guiacol peroxidase (GPX) was recorded in metal treated roots and leaves of B. monnieri. In contrast, a significant reduction in catalase activity in Cd treated B. monnieri was observed. An increase was also noted in the levels of cysteine and non-protein thiol contents of the roots of B. monnieri followed by a decline. However, in leaves, cysteine and non-protein thiol contents were found to be enhanced at all the Cd concentrations and exposure periods. A significant reduction in the level of ascorbic acid was observed in a concentration and duration dependent manner. The total chlorophyll and protein content of B. monnieri decreased with increase in Cd concentration at all the exposure periods. Results suggest that toxic concentrations of Cd caused oxidative damage as evidenced by increased lipid peroxidation and decreased chlorophyll and protein contents. However, B. monnieri is able to combat metal induced oxidative injury involving a mechanism of activation of various enzymatic and non-enzymatic antioxidants. 相似文献
95.
Krishnakumar S. Singh D. Satheesh Herbert Godson Prince S. Thanga Salom Gnana 《Environmental science and pollution research international》2022,29(48):72309-72311
Environmental Science and Pollution Research - 相似文献
96.
Choudhary Bharat Paul Debajyoti Singh Abhas Gupta Tarun 《Environmental science and pollution research international》2017,24(20):16786-16797
Environmental Science and Pollution Research - Chromium pollution of soil and water is a serious environmental concern due to potential carcinogenicity of hexavalent chromium [Cr(VI)] when... 相似文献
97.
Summary In Kumaun Himalaya, India, 60 percent of the rural population is dependent on natural springs for water supply. The authors claim that substantial reductions in spring water discharges are due to losses in the indigenous oak forest coverage and its partial replacement by pine. Other factors, such as overall forest cover depletion and construction activities, combine to produce severe reductions in spring discharge rates.Drs Anil Singh and Ravindra Pande are members of academic staff at Kumaun University working in the Laboratory for Hydrological and Geomorphological Investigations in the Department of Geography. 相似文献
98.
Aquatic macroinvertebrate diversity in the Nanda Devi Biosphere Reserve (NDBR) was monitored for a period of twelve months (September 2000 to August 2001). All the important hydrological attributes were measured monthly for one year. Macroinvertebrates were sampled from three sites (S1$, S2$, & S3$) of the headwater stream Dhauliganga of NDBR. The present study revealed that the velocity of the water current, hydromedian depth, turbidity and dissolved oxygen in addition to nature and size of the bottom substrates have their significant impact on benthic invertebrate diversity. The ecological relevance of the measured hydrological attributes was investigated by comparing their degree of correlation with invertebrate density and diversity. Macroinvertebrate diversity was found to be highest (3.096 ± 0.03) in winter months (November–January) and lowest (2.816 ± 0.02) in monsoon months (July–August). The high diversity of macroinvertebrates may be due to low turbidity, high water transparency, optimum water temperature, high dissolved oxygen, low water velocity and suitable composition of the bottom substrates. 相似文献
99.
100.