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| 1 | Ecological stoichiometry and biomass response of Agropyron michnoi Roshev.under simulated N deposition in a sandy grassland,China显示文摘Sandy grassland in northern China is a fragile ecosystem with poor soil fertility.Exploring how plant species regulate growth and nutrient absorption under the background of nitrogen(N)deposition is crucial for the management of the sandy grassland ecosystem.We carried out a field experiment with six N levels in the Hulunbuir Sandy Land of China from 2014 to 2016 and explored the Agropyron michnoi Roshev.responses of both aboveground and belowground biomasses and carbon(C),N and phosphorus(P)concentrations in the plant tissues and soil.With increasing N addition,both aboveground and belowground biomasses and C,N and P concentrations in the plant tissues increased and exhibited a single-peak curve.C:N and C:P ratios of the plant tissues first decreased but then increased,while the trend for N:P ratio was opposite.The peak values of aboveground biomass,belowground biomass and C concentration in the plant tissues occurred at the level of 20 g N/(m2•a),while those of N and P concentrations in the plant tissues occurred at the level of 15 g N/(m2•a).The maximum growth percentages of aboveground and belowground biomasses were 324.2%and 75.9%,respectively,and the root to shoot ratio(RSR)decreased with the addition of N.N and P concentrations in the plant tissues were ranked in the order of leaves>roots>stems,while C concentration was ranked as roots>leaves>stems.The increase in N concentration in the plant tissues was the largest(from 34%to 162%),followed by the increase in P(from 10%to 33%)and C(from 8%to 24%)concentrations.The aboveground biomass was positively and linearly correlated with leaf C,N and P,and soil C and N concentrations,while the belowground biomass was positively and linearly correlated with leaf N and soil C concentrations.These results showed that the accumulation of N and P in the leaves caused the increase in the aboveground biomass,while the accumulation of leaf N resulted in the increase in the belowground biomass.N deposition can alter the allocation of C,N and P stoichiometry in the plant tissues and has a high potential for increasing plant biomass,which is conducive to the restoration of sandy grassland. | JIN Xiaoming YANG Xiaogang ZHOU Zhen ZHANG Yingqi YU Liangbin ZHANG Jinghua LIANG Runfang | 2020 | Journal of Arid Land2020，12，5： | 2 |
| 2 | Trusted P2P transactions with fuzzy reputation aggregation显示文摘 | Song Shanshan Hwang Kai Zhou Runfang | 2005 | IEEE Intemet Computing2005，，9： | 1 |
| 3 | PowerTrust: a robust and scal- able reputation system for trusted peer-to-peer computing 显示文摘 | Runfang Zhou Kai Hwang | 2007 | IEEE Transactions on Parallel and Distributed Systems2007，18，5： | 1 |
| 4 | PowerTrust:A robust and scalable reputation system for trusted P2P computing显示文摘 | Zhou Runfang Hwang Kai | 2007 | IEEE Trans on Parallel and Distributed Systems2007，18，4： | 1 |
| 5 | GossipTrust for fast reputation aggregation in peer-to-peer networks显示文摘 | Zhou Runfang Hwang Kai Cai Min | 2008 | IEEE Trans on Knowledgement and Data Engineering2008，20，9： | 1 |
| 6 | PowerTrust:A Robust and Scalable Reputation System for Trusted Peer-to-Peer Computing 显示文摘 | ZHOU Runfang HWANG Kai | 2007 | IEEE Trans on Parallel and Distributed Systems2007，18，4： | 1 |
| 7 | Gossip Trust for Fast Reputation Aggregation in Peer-to-Peer Networks 显示文摘 | ZHOU Runfang HWANG Kai | 2008 | IEEE Transactions on Knowledge and Data Engineering2008，20，9： | 1 |
| 8 | Trusted P2P transactions with fuzzy reputation aggregation 显示文摘 | Song Shanshan Hwang K Zhou Runfang | 2005 | IEEE Internet Computing2005，9，6： | 1 |
| 9 | Trusted P2P Transactions with Fuzzy Reputation Aggrega tion显示文摘 | SONG SHANSHAN KAI HWANG ZHOU RUNFANG | 2005 | IEEE Internet Computing2005，9，6： | 1 |
| 10 | PowerTrust:A Robust and Scalable Reputation System for Trusted Peer-to-Peer Computing显示文摘 | Runfang Zhou Kai Hwang | | 0，，04： | 1 |
| 11 | Powertrust: a robust and scala- ble reputation system for trusted peer-to-peer computing 显示文摘 | Zhou Runfang Hwang K | 2007 | IEEE Trans on Parallel and Distributed Systems2007，18，4： | 1 |
| 12 | Trusted P2P transactions with fuzzy reputation aggregation显示文摘 | Song Shanshan Hwang K Zhou Runfang | 2005 | IEEE Internet Computing2005，9，6： | 1 |
| 13 | PowerTrust: a robust and scalable reputation system for trusted peer-to-peer computing 显示文摘 | Runfang Zhou Kai Hwang | 2007 | IEEE Transactions on Parallel and Distributed Systems (S1045-9219)2007，18，5： | 1 |
| 14 | Powertrust: a robust and scalable reputation system for trusted peer-to-peer computing显示文摘 | ZHOU Runfang HWANG K | 2007 | IEEE Transactions on Parallel and Distributed Systems2007，18，4： | 1 |
| 15 | Trusted P2P transactions with fuzzy reputation aggregation显示文摘 | SONG Shanshan HWANG K ZHOU Runfang | 2005 | IEEE Internet Computing2005，9，6： | 1 |
| 16 | Trusted P2P Transactions with Fuzzy Reputation Aggregation显示文摘 | Song Shanshan Hwang Kai Zhou Runfang | 2005 | Ad Hoc and P2P Security2005，9，6： | 1 |
| 17 | PowerTrust: a robust and scalable reputation system for trusted peer-to-peer computing 显示文摘 | Zhou Runfang Hwang Kai | 2007 | IEEE Transactions on Parallel and Distributed Systems2007，18，4： | 1 |
| 18 | Gossiptrust for fast reputation aggregation in peer-to-peer networks显示文摘 | Zhou Runfang Hwang Kai Cai Min | 2008 | IEEE Transactions on Knowledge and Data Engineering2008，20，9： | 1 |
| 19 | Trust Overlay Networks for GlobalReputation Aggregation in P2P Gird Computing显示文摘 | Runfang Zhou Kai Hwang | 2006 | IEEEIPDPS-2006，2006，12： | 1 |
| 20 | Trusted P2P transactions with fuzzy reputation aggregation显示文摘 | Song Shanshan Hwang Kai Zhou Runfang | 2005 | IEEE Internet Computing2005，9，6： | 1 |
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