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您的检索式：作者名="HU Zhongxia"
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| 1 | Humification degree of peat and its implications for Holocene climate change in Hani peatland,Northeast China显示文摘The humification degree of peat is a significant climatic proxy for paleoclimate change.Using the alkali-extraction method,a time series of absorbance values of the Hani peatland,Northeast China,was determined,which is used as an indicator for the humification degree of peat.Combined with14C dating data of peat cellulose,and compared withδ18O andδ13C time series of the cellulose in the Hani peatland,the evidence for the existence of14 ka paleoclimate was provided.Higher humification degrees hint a warmer-wetter climate,and vice versa.It also reconstructs the four stages of Holocene climate evolution in this region:11.5–9.8 cal ka B.P.,warm and wet period;9.8–9.0 cal ka B.P.,cold and dry period;9.0–4.8 cal ka B.P.,warm and wet period;and 4.8–0 cal ka B.P.,warm-wet and dry-cold alternation period.Meanwhile,it is revealed that the abrupt climate shifts signals such as the '8.2 ka' event and the '4.2 ka' event.Results showed that the Hani peat humification degree is of sensitive response to paleoclimate change.Therefore,it is a feasible method to analyze the relationship between paleoclimate change and peat humification degree. | HUANG Ting CHENG Shenggao MAO Xumei HONG Bing HU Zhongxia ZHOU Ying | 2013 | Chinese Journal Of Geochemistry2013，32，4： | 6 |
| 2 | A Comparison of Different Gracilariopsis lemaneiformis(Rhodophyta) Parts in Biochemical Characteristics, Protoplast Formation and Regeneration显示文摘Gracilariopsis lemaneiformis is a commercially exploited alga. Its filaceous thallus can be divided into three parts, holdfast, middle segment and tip. The growth and branch forming trend and agar content of these three parts were analyzed, respectively, in this study. The results showed that the tip had the highest growth rate and branched most, although it was the last part with branch forming ability. The holdfast formed branches earliest but slowly. Holdfast had the highest agar content. We also assessed the difference in protoplast formation and regeneration among three parts. The middle segment displayed the shortest enzymolysis time and the highest protoplast yield; whereas the tip had the strongest vitality of protoplasts formation. Juvenile plants were only obtained from the protoplasts generated from the tip. These results suggested that the differentiation and function of G. lemaneiformis was different. | WANG Zhongxia SUI Zhenghong HU Yiyi ZHANG Si PAN Yulong JU Hongri | 2014 | Journal of Ocean University of China2014，13，4： | 4 |
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