QQ客服 官方微博 反馈留言

浏览/检索结果: 共21条，第1-10条 帮助 限定条件 专题：北京大学    第一署名单位    第一作者单位    通讯作者单位    发表日期：2014     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 The effects of simulated nitrogen deposition on extracellular enzyme activities of litter and soil among different-aged stands of larch 期刊论文 journal of plant ecology, 2014 Ma, Yuecun; Zhu, Biao; Sun, Zhenzhong; Zhao, Chuang; Yang, Yan; Piao, Shilong 收藏  |  浏览/下载：4/0  |  提交时间：2015/11/13 glucosidase  cellobiohydrolase  glucosaminidase  phenol oxidase  Larix plantation  NORTHERN HARDWOOD FORESTS  ORGANIC-MATTER  MICROBIAL BIOMASS  CARBON  DECOMPOSITION  RESPONSES  CHINA  CHRONOSEQUENCE  ECOSYSTEMS  DYNAMICS   High carbon dioxide uptake by subtropical forest ecosystems in the East Asian monsoon region 期刊论文 proceedings of the national academy of sciences of the united states of america, 2014 Yu, Guirui; Chen, Zhi; Piao, Shilong; Peng, Changhui; Ciais, Philippe; Wang, Qiufeng; Li, Xuanran; Zhu, Xianjin 收藏  |  浏览/下载：4/0  |  提交时间：2015/11/16 SOIL RESPIRATION  NITROGEN DEPOSITION  TROPICAL FORESTS  TIBETAN PLATEAU  ATMOSPHERIC CO2  PINE FORESTS  CLIMATE  EXCHANGE  FLUXES  SEQUESTRATION   Weak growth response to nitrogen deposition in an old-growth boreal forest 期刊论文 2014 Du, Enzai; Fang, Jingyun 收藏  |  浏览/下载：9/0  |  提交时间：2015/11/16 growth efficiency  net primary production  nitrogen deposition  old-growth forest  phosphorus limitation  progressive nitrogen saturation  NUTRIENT LIMITATION  PHOSPHORUS LIMITATION  TERRESTRIAL ECOSYSTEMS  ATMOSPHERIC NITROGEN  TEMPERATE FORESTS  LEAF NITROGEN  CARBON  SATURATION  FERTILIZATION  ALLOCATION   Changes in wet nitrogen deposition in the United States between 1985 and 2012 期刊论文 environmental research letters, 2014 Du, Enzai; de Vries, Wim; Galloway, James N.; Hu, Xueyang; Fang, Jingyun 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/13 nitrogen deposition  ammonium:nitrate ratio  Mann-Kendall test  regional Kendall test  PRECIPITATION CHEMISTRY  AMMONIA EMISSIONS  REACTIVE NITROGEN  REDUCED NITROGEN  CRITICAL LOADS  TRENDS  ENVIRONMENT  FUTURE  USA   2010年中国大气氮沉降特征分析 期刊论文 中国环境科学, 2014 郑丹楠; 王雪松; 谢绍东; 段雷; 陈东升 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/11 大气氮沉降 时空分布 季节变化 CMAQ atmospheric nitrogen deposition spatial-temporal variation seasonal variation CMAQ   Simulation of atmospheric nitrogen deposition in China in 2010 期刊论文 zhongguo huanjing kexuechina environmental science, 2014 Zheng, Dan-Nan; Wang, Xue-Song; Xie, Shao-Dong; Duan, Lei; Chen, Dong-Sheng 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/17 Estimating net anthropogenic nitrogen inputs (NANI) in the Lake Dianchi basin of China 期刊论文 biogeosciences, 2014 Gao, W.; Howarth, R. W.; Hong, B.; Swaney, D. P.; Guo, H. C. 收藏  |  浏览/下载：5/0  |  提交时间：2015/11/13 NORTH-ATLANTIC OCEAN  RIVERINE N-EXPORT  PHOSPHORUS  WATERSHEDS  EUTROPHICATION  FLUXES  CYCLE  CONSEQUENCES  ECOSYSTEMS  LANDSCAPE   Impact of nitrogen plasma passivation on the interface of germanium MOS capacitor 期刊论文 chinese physics b, 2014 Yun Quan-Xin; Li Ming; An Xia; Lin Meng; Liu Peng-Qiang; Li Zhi-Qiang; Zhang Bing-Xin; Xia Yu-Xuan; Zhang Hao; Zhang Xing; Huang Ru; Wang Yang-Yuan 收藏  |  浏览/下载：4/0  |  提交时间：2015/11/10 germanium  roughness  interface trap density  interfacial layer thickness  HYDROGEN  GE  DIELECTRICS  NITRIDATION  ROUGHNESS  OXIDATION  INSULATOR   Carbon scrolls from chemical vapor deposition grown graphene 期刊论文 炭素, 2014 Cheng, Guangjun; Calizo, Irene; Liang, Xuelei; Sperling, Brent A.; Johnston-Peck, Aaron C.; Li, Wei; Maslar, James E.; Richter, Curt A.; Walker, Angela R. Hight 收藏  |  浏览/下载：4/0  |  提交时间：2015/11/11 HIGH-QUALITY  NANOSCROLLS  GRAPHITE  OXIDE  NANOTUBES  SHEETS  FILMS  FABRICATION  DYNAMICS  NITROGEN   Inorganic nitrogen deposition in China's forests: Status and characteristics 期刊论文 大气环境, 2014 Du, Enzai; Jiang, Yuan; Fang, Jingyun; de Vries, Wim 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/10 Nitrogen deposition  Ammonium:nitrate ratio  Throughfall  Enrichment ratio  Dry deposition  Urban hotspot hypothesis  ATMOSPHERIC DEPOSITION  CANOPY UPTAKE  THROUGHFALL MEASUREMENTS  AMMONIA EMISSIONS  REDUCED NITROGEN  BULK DEPOSITION  WET DEPOSITION  AIR-POLLUTION  HIGHER-PLANTS  TRANSPORT