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| 1 | Magnetic susceptibility properties of polluted soils显示文摘An investigation of magnetic properties using magnetic susceptibility ( x) andfrequency-dependent susceptibility (xfd) was conducted on representative modern pollutants, which include smelted slag dust, automobile exhaust dust and coal ash. Their magnetic susceptibility values are more than 500×108 m3/kg, and frequency-dependent susceptibility values less than 3%, indicating that ample ferrimagnetic and scanty superparamagnetic grains occurred in the studied pollutants. Similar to the artificially synthetic polluted soils, the industrially-polluted soils display a negative relationship between magnetic susceptibility and frequency-dependent susceptibility. However, the unpolluted soils, e.g. the Quaternary loess in the Chinese Loess Plateau, show a positive relationship between them. In this note, we propose a convenient and effective approach for identifying the polluted soils. | Luo Wang Dongsheng Liu Houyuan Lü | 2000 | Chinese Science Bulletin2000，45，18： | 6 |
| 2 | Phytoliths as quantitative indicators for the reconstruction of past environmental conditions in China Ⅱ:Palaeoenvironmental reconstruction in the Loess Plateau显示文摘 | Lü Houyuan Wu Naiqin Liu Kam-Biu | | 0，，5： | 1 |
| 3 | Phytoliths analysis for the discrimination of foxtail millet (Setaria italica) and common millet (Panicum miliaceum)显示文摘 | Lü Houyuan Zhang Jianping Wu Naiqin | | 0，，02： | 1 |
| 4 | Phytolith analysis for differentiating between foxtail millet (Setaria italica) and green foxtail(Setaria viridis)显示文摘 | Zhang Jianping Lü Houyuan Wu Naiqin | | 0，，05： | 1 |
| 5 | Millet noodles in Late Neolithic China显示文摘 | Lü Houyuan Yang Xiaoyan Ye Maolin | | 0，，： | 1 |
| 6 | The magnetic susceptibility of modern soils in China and its use for paleoclimate reconstruction显示文摘 | Han Jiamao Lü Houyuan Wu Naiqin | | 0，，03： | 1 |
| 7 | The magnetic susceptibility of modern soils in China and its use for paleoclimate reconstruction显示文摘 | Han Jiamao Lü Houyuan Wu Naiqin Guo Zhengtang | 1996 | Studia Geophysica et Geod?tica1996，，3： | 1 |
| 8 | The magnetic susceptibility of modern soils in China and its use for paleoclimate reconstruction显示文摘 | Han Jiamao Lü Houyuan Wu Naiqin Guo Zhengtang | 1996 | Studia Geophysica et Geod?tica1996，，3： | 1 |
| 9 | Analysis of carbon isotope in phytoliths from C3 and C4 plants and modern soils显示文摘The analysis of carbon isotope in phytoliths from modern plants and surface soils in China shows that the values of carbon isotope are consistent with those from C3 and C4 plants, and the processes of photosynthesis of the original plants can be clearly identified by carbon isotope in phytoliths. The value of carbon isotope varied from -23.8‰ to -28‰, with the maximum distributed in the latitude zone from 34°N to 40°N in North China and East China areas, and the minimum in the Northeast China and South China regions. The values of carbon of phytoliths tend to increase from low to high and then reduce to low value again as the latitude increases. In the same latitude zone, the carbon isotope in phytoliths from grassland soil under the trees is obviously lower than that from grassland soil without any trees with the difference of 1‰ - 2‰. | LÜ Houyuan WANG Yongji WANG Guo'an YANG Hui LI Zhen | 2000 | Chinese Science Bulletin2000，45，19： | 9 |
| 10 | Starch grain analysis reveals function of grinding stone tools at Shangzhai site, Beijing显示文摘Prehistoric groundstone tools including slabs (metate, mo-pan) and mullers (mano, mo-bang) are often considered to be tools that were used to process cereals in ancient China. Most archaeologists believe that groundstone tools are indicators of an agrarian economy. This study employed starch grain analysis to examine a slab and a muller excavated from the Shangzhai Site (7500-7000 cal a BP), Beijing. Identifiable starch grains recovered from the stone tools were classified into 9 genera and 12 species, most of which were from acorns and foxtail millets. Remains from the oak species Q. mongolicus, Q. acuttssima, and Q. dentate were identified as well as a few starch grains from broomcorn (Panicum miliaseum) and bean (Vigna sp.). Other starch grains were from unidentifiable roots and grasses. A variety of starch grains indicates that the grinding stone tools were used to process not only cereals, but also other seeds or roots that had to be ground or husked, thus bringing into question the aforementioned cereal hypothesis. Because the numbers of starch grains from nuts and millets were so large, both gathering and cultivation might have been important economic patterns before 7000 years ago in Beijing area. Moreover, the starch remains are derived from plants that indicate that the paleoclimate of Beijing was wetter and warmer than today’s. | YANG XiaoYan YU JinCheng Lü HouYuan CUI TianXing GUO JingNing GE QuanSheng | 2009 | Science China Earth Sciences2009，52，8： | 32 |
| 11 | Periodicity of Holocene climatic variations in the Huguangyan Maar Lake显示文摘There exist five primary periods of 2 930, 1 140, 490, 250 and 220 a in the Holocene climatic variations in the Huguangyan Maar Lake, according to the energy-spectrum and filter analyses of high-resolution time sequences (10-15 a) of the sediment dry density. The peak values of the three temperature-decreasing periods with the 2 930 a cycle occur at about 7 300, 4 250 and 1 200 Cal. aBP. There are 7-8 temperature-decreasing periods with the 1 140 a cycle, and the climate fluctuation range is largest in the early Holocene, and reduces gradually in the middle and late Holocene. The millennial-scale climatic change in the Holocene may adjust the global water cycle and the thermohaline circulation intensity through the harmonic tones of the earth’s precession cycle, which in turn influences the global climate change. | LIU Jiaqi LÜ Houyuan JNegendank JMingram LUO Xiangjun WANG Wenyuan CHU Guoqiang | 2000 | Chinese Science Bulletin2000，45，18： | 33 |
| 12 | Origin area and migration route: Chloroplast DNA diversity in the arctic-alpine plant Koenigia islandica显示文摘The Hengduan Mountains(henceforth H-D Mountains) on the Tibet Plateau are a distribution and diversity center for many alpine genera. We examine patterns of genetic variation in an arctic-alpine plant to evaluate the possibility that the H-D Mountains constitute the area of origin of the species as well as to uncover postglacial migration routes. 220 individuals of the arctic-alpine plant Koenigia islandica were sampled from 26 populations distributed in western China and northern Finland. DNA haplotypes were identified using restriction site analysis of two chloroplast DNA intergene spacer regions, atpB-rbcL and trnL-trnF. We examined the geographical distribution of haplotype diversity in relation to latitude, and also compared various indices of diversity in putatively glaciated and unglaciated regions. Patterns of migration were inferred using nested clade analysis. A total of 25 haplotypes were detected. High haplotype diversity was found in the H-D Mountains. H3 and its radiated haplotypes were distributed in the Himalayas. Two haplotypes were fixed concurrently in the H-D Mountains and northern Finland. High genetic diversity of K. islandica and high species diversity of K. islandica are expected in the origin area. Our observations suggest that the H-D Mountains are not only the place of origin of K. islandica, but also the refugia for K. islandica on the Tibet Plateau. What is more, the migration route for the arctic-alpine plant K. islandica must have originated in the region defined by the H-D Mountains in western China extending northward to the Arctic circumpolar, and moved westward along the Himalayas, then northward across the Altay Mountains and the Central Siberian Plateau at different time periods. | LONG Cong MIN YunJiang ZHAO XiuXia YANY ChunLei SUN Hang Lü HouYuan TANG LingYu ZHOU ZhongZe | 2014 | Science China Earth Sciences2014，57，8： | 2 |
| 13 | Grey characteristics of microbanding of stalagmite in Shihua Cave, Beijing and its climatic signification(I)显示文摘 | Xiaoguang Qin Dongsheng Liu Ming Tan Tieying Li Jinpo Lü Zhaoyan Gu Houyuan Lü Zhongli Ding Zhengtang Guo Jiaqi Liu Gaozhong Nie | 1998 | Science in China Series D: Earth Sciences1998，，2： | 1 |
| 14 | Grey characteristics of microbanding of stalagmite in Shihua Cave, Beijing and its climatic signification(I)显示文摘 | Xiaoguang Qin Dongsheng Liu Ming Tan Tieying Li Jinpo Lü Zhaoyan Gu Houyuan Lü Zhongli Ding Zhengtang Guo Jiaqi Liu Gaozhong Nie | 1998 | Science in China Series D: Earth Sciences1998，，2： | 1 |
| 15 | Grey characteristics of microbanding of stalagmite in Shihua Cave, Beijing and its climatic signification(I)显示文摘 | Xiaoguang Qin Dongsheng Liu Ming Tan Tieying Li Jinpo Lü Zhaoyan Gu Houyuan Lü Zhongli Ding Zhengtang Guo Jiaqi Liu Gaozhong Nie | 1998 | Science in China Series D: Earth Sciences1998，，2： | 1 |
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