搜索结果: 16-30 共查到“地球科学总论 U.S. and China”相关记录35条 . 查询时间(0.17 秒)
Environmental influences on carbon dioxide fluxes over three grassland ecosystems in China
Environmental influences carbon dioxide three grassland ecosystems China
2010/1/21
This study compared carbon dioxide (CO2) fluxes over three grassland ecosystems in China, including a temperate semiarid steppe in Inner Mongolia (NMG), an alpine shrub-meadow in Qinghai (HB), and an ...
Multidisciplinary stratigraphy across the Permian-Triassic boundary in deep-water environment of the Dongpan section,south China
Multidisciplinary stratigraphy Permian-Triassic boundary deep-water environment
2009/12/3
Liuqiao area in south China is an ideal place for high-resolution definition of the deep-water Permian-Triassic boundary (PTB) and correlating deep-water and shallow marine PTB sequences. It contains ...
Coupling of surface pCO2 and dissolved oxygen in the northern South China Sea:impacts of contrasting coastal processes
surface pCO2 dissolved oxygen South China Sea coastal processes
2010/1/21
We examined the relationship between CO2 partial pressure (pCO2) and dissolved oxygen (DO) based on a cruise conducted in July 2004 to the northern South China Sea (111°–118° E 18°–23° N), spanning fr...
Long term changes in the ecosystem in the northern South China Sea during 1976–2004
Long term changes ecosystem northern South China Sea
2010/1/21
Physical and chemical oceanographic data were obtained by seasonal monitoring along a transect (Transect N) in the northern South China Sea (nSCS) during 1976–2004. Fluctuations of DIN (dissolved inor...
Quantifying methane emissions from rice fields in the Taihu Lake region,China by coupling a detailed soil database with biogeochemical model
methane emissions rice fields Taihu Lake detailed soil database biogeochemical model
2010/1/20
As China has approximately 22% of the world's rice paddies, the regional quantification of CH4 emissions from these paddies is important in determining their contribution to the global greenhouse gas ...
CO2 enrichment increases nutrient leaching from model forest ecosystems in subtropical China
CO2 enrichment nutrient leaching model forest ecosystems subtropical China
2010/1/18
The effect of high atmospheric CO2 concentrations on the dynamics of mineral nutrient is not well documented, especially for subtropical China. We used model forest ecosystems in open-top chambers to ...
Nitrification and inorganic nitrogen distribution in a large perturbed river/estuarine system:the Pearl River Estuary,China
Nitrification inorganic nitrogen distribution river/estuarine system
2010/1/18
We investigated the spatial distribution and seasonal variation of dissolved inorganic nitrogen in a large perturbed estuary, the Pearl River Estuary, based on three cruises conducted in winter (Janua...
Detection of ULF electromagnetic emissions as a precursor to an earthquake in China with an improved polarization analysis
ULF electromagnetic emissions an earthquake an improved polarization analysis
2009/12/30
An improved analysis of polarization (as the ratio of vertical magnetic field component to the horizontal one) has been developed, and applied to the approximately four years data (from 1 March 2003 t...
Gauging the ungauged basin:a top-down approach in a large semiarid watershed in China
ungauged basin top-down approach large semiarid watershed China
2010/1/28
A major research challenge in ungauged basins is to quickly assess the dominant hydrological processes of watersheds. In this paper we present a top-down approach from first field reconnaissance to pe...
Assessment of ecologically relevant hydrological change in China due to water use and reservoirs
ecologically relevant hydrological change China water use reservoirs
2010/1/28
As China's economy booms, increasing water use has significantly affected hydro-geomorphic processes and thus the ecology of surface waters. A large variety of hydrological changes arising from human ...
Input and output of dissolved organic and inorganic nitrogen in subtropical forests of South China under high air pollution
organic and inorganic nitrogen subtropical forests South China high air pollution
2010/1/15
The nitrogen (N) emissions to the atmosphere and N deposition to forest ecosystems are increasing rapidly in Southeast Asia, but little is known about the fates and effects of elevated N deposition in...
期刊信息
篇名
Two new species of Phratora Chevrolat from Qingling Mountains, China (Coleoptera: Chrysomelidae: Chrysomelinae).
语种
英文
撰写或编译
撰写
作者
葛斯琴,李文柱,杨星科
第一作者单位
中国科学院动物研究所
刊物名称
Pan-Pacific Entomologist
页...
期刊信息
篇名
Two new species of Fridericia (Oligochaeta,Tubificidae) from Changbaishan Mountain, Jilin Province, China
语种
英文
撰写或编译
作者
Xie Z. C.,Y. L.Liang,H. Z. Wang
第一作者单位
刊物名称
Species Diversity,
页面
5(1):...
期刊信息
篇名
Sm-Nd and Rb-Sr isotopic chronology and cooling history of ultrahigh pressure metamorphic rocks and their country rocks at Shuanghe in the Dabie Mountains, central China.
语种
英文
撰写或编译
撰写
作者
Li ...