|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Impacts of the large amount of sand mining on riverbed morphology and tidal dynamics in lower reaches and delta of the Dongjiang River显示文摘The sand dredging and its impacts on riverbed evolution and tidal dynamic change in the lower reaches and delta of the Dongjiang River are examined in this paper. The large amount of sand, totally 3.32 billion m3 from 1980 to 2002, was mined from the riverbeds of the lower reaches and delta of the Dongjiang River. Increasing of the channel capacity, lowering of the average riverbed elevation, deepening of the water depth and decreasing of the longi- tudinal riverbed gradient are the main effects on the riverbed evolution brought by the large amount of sand dredging. Under the strong sand dredging and associated significant riverbed deformation, the notable changes of the tidal dynamic in the lower reaches and delta of the Dongjiang River occurred, including: (1) in the upper reaches of the Dongjiang River delta and lower reaches of the Dongjiang River, tidal level dropped apparently, tidal range widened, flood tidal duration became longer, amplitudes for major tidal components became bigger and tidal dynamics intensified; (2) tidal wave spread faster; and (3) the limits of the tidal level, tidal current and salt water moved upstream. | JIA Liangwen LUO Zhangren YANG Qingshu OU Shuying LEI Yaping | 2007 | Journal of Geographical Sciences2007，17，2： | 3 |
| 2 | RNAi-mediated knocking-down of rlpk2 gene retarded soybean leaf senescence显示文摘Leaf senescence that occurs in the last stage of leaf development is a genetically programmed process. It is very significant to elucidate the molecular mechanisms that control the initiation and progression of leaf senescence and the way the senescence signal is transduced. In a previous study on artificially induced soybean leaf senescence, we cloned a novel gene designated rlpk2 (Genbank Accession No. AY687391) that encodes a leucine-rich repeat (LRR) receptor like protein kinase. The expression level of rlpk2 gene was shown to be strongly up-regulated during both the natural leaf senescence process in this report and the artificially induced primary-leaf-senescence process in our previous work. The RNA interference (RNAi)-mediated knocking-down of rlpk2 dramatically retarded both the natural and nutrient deficiency-induced leaf senescence in transgenic soybean. The transgenic leaves showed more cell-aggregated surface structure and higher content of chlorophyll. | LIXiaoping MAYuanyuan LIPengli ZHANGLiwen WANGYong ZHANGRen WANGNingning | 2005 | Chinese Science Bulletin2005，50，12： | 3 |
| 3 | Relations Between Soil Properties and Selected Heavy Metal Concentrations in Spring Wheat (Triticum aestivum L.) Grown in Contaminated Soils显示文摘 | Zhangren Nan Chuanyan Zhao Jijun Li Fahu Chen Wu Sun | 2002 | Water Air and Soil Pollution (-)2002，，1： | 1 |
| 4 | Study on optimization-based layered classification for separation of wetlands显示文摘 | Lan Zhangren Zhang Dongshui | 2006 | International Journal of Remote Sensing2006，27，8： | 1 |
| 5 | Morphodynamic Processes of Tidal Inlet and Ebb-Tidal Delta of Shuidong Bay显示文摘Based on the observed data in 1982- 1985 at Shuidong Bay area, west Guangdong Province, the morphodynamic processes of tidal inlet and ebb-tidal delta in the barrier-lagoon system are presented, including the dynamic features of tides and in the tidal inlet, the regional dyanmics and longshore sediment transport in the ebb-tidal delta, the genesis of the entrance bar, the recent erosion and deposition in the ebb-tidal delta and so on. The paper attempts to answer two questions, i. e., the stability of the tidal inlet and the feasibility of dredging on the entrance bar for the course of Shuidong Harbour. The results show that the stability of the tidal inlet is ideal and that dredging action on the entrance bar may be successful if dredging is deep enough and the course position reasonable. | Li, Chunchu Ying, Zhifu Yan, Ganran Luo, Zhangren | 1991 | China Ocean Engineering1991，6，1： | 1 |
| 6 | Study on optimization-based layered classification for Separation of wetlands显示文摘 | Lan Zhangren Zhang Dongshui | 2006 | International Journal of Remote Sensing2006，27，8： | 1 |
| 7 | Relations Between Soil Properties and Selected Heavy Metal Concentrations in Spring Wheat (Triticum aestivum L.) Grown in Contaminated Soils显示文摘 | Zhangren Nan Chuanyan Zhao Jijun Li Fahu Chen Wu Sun | 2002 | Water Air and Soil Pollution (-)2002，，1： | 1 |
| 8 | Relations Between Soil Properties and Selected Heavy Metal Concentrations in Spring Wheat (Triticum aestivum L.) Grown in Contaminated Soils显示文摘 | Zhangren Nan Chuanyan Zhao Jijun Li Fahu Chen Wu Sun | 2002 | Water Air and Soil Pollution (-)2002，，1： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员