|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Climate and litter C/N ratio constrain soil organic carbon accumulation显示文摘Soil organic carbon(SOC) plays critical roles in stabilizing atmospheric CO2 concentration, but the mechanistic controls on the amount and distribution of SOC on global scales are not well understood. In turn, this has hampered the ability to model global C budgets and to find measures to mitigate climate change. Here, based on the data from a large field survey campaign with 2600 plots across China’s forest ecosystems and a global collection of published data from forested land, we find that a low litter carbon-to-nitrogen ratio(C/N) and high wetness index(P/PET, precipitation-to-potentialevapotranspiration ratio) are the two factors that promote SOC accumulation, with only minor contributions of litter quantity and soil texture. The field survey data demonstrated that high plant diversity decreased litter C/N and thus indirectly promoted SOC accumulation by increasing the litter quality. We conclude that any changes in plant-community composition, plant-species richness and environmental factors that can reduce the litter C/N ratio, or climatic changes that increase wetness index, may promote SOC accumulation. The study provides a guideline for modeling the carbon cycle of various ecosystem scales and formulates the principle for land-based actions for mitigating the rising atmospheric CO2 concentration. | Guoyi Zhou Shan Xu Philippe Ciais Stefano Manzoni Jingyun Fang Guirui Yu Xuli Tang Ping Zhou Wantong Wang Junhua Yan Gengxu Wang Keping Ma Shenggong Li Sheng Du Shijie Han Youxin Ma Deqiang Zhang Juxiu Liu Shizhong Liu Guowei Chu Qianmei Zhang Yuelin Li Wenjuan Huang Hai Ren Xiankai Lu Xiuzhi Chen | 2019 | National Science Review2019，6，4： | 21 |
| 2 | ON THE ORDER OF APPROXIMATION FOR THE RATIONAL INTERPOLATION TO |x|显示文摘The order of approximation for Newman-type rational interpolation to |x| is studied in this paper.For general set of nodes, the extremum of approximation error and the order of the best uniform approximation are estimated. The result illustrates the general quality of approximation in a different way. For the special case where the interpolation nodes are xi=(i/n)r(i=1,2, … ,n;r>0), it is proved that the exact order of approximation is O(1/n), O(1/nlogn) and O(1/nr), respectively, corresponding to 01. | Han Xuli(Central South University, China) | 2002 | Approximation Theory and Its Applications2002，18，2： | 16 |
| 3 | NEW TRIGONOMETRIC BASIS POSSESSING EXPONENTIAL SHAPE PARAMETERS显示文摘 | Yuanpeng Zhu Xuli Han | 2015 | Journal of Computational Mathematics2015，33，6： | 2 |
| 4 | Piecewise quartic polynomial curves with a local shape parameter显示文摘 | Han Xuli | 2006 | Journal of Computational and Applied Mathematics2006，23，1： | 1 |
| 5 | Cubic trigonometric polynomial curves with a shape parameter显示文摘 | Han Xuli | 2004 | Computer Aided Geometric Design2004，21，6： | 1 |
| 6 | Piecewise quartic polynomial curves with a local shape parameter显示文摘 | Xuli Han | 2006 | Journal of Computational and Applied Mathematics2006，195，2： | 1 |
| 7 | Parametric splines on a hyperbolic parab- oloid显示文摘 | Peng Fengfu Han Xuli | 2009 | Journal of Computational and Applied Mathematics2009，229，： | 1 |
| 8 | Piecewise quadratic trigonometric polynomial curves 显示文摘 | HAN Xuli | 2003 | Mathematics of Computation2003，72，243： | 1 |
| 9 | Quadratic trigonometric polynomial curves with a shape parameter 显示文摘 | HAN Xuli | 2002 | Computer Aided Geometric Design2002，19，7： | 1 |
| 10 | Cubic trigonometric polynomial curves with a shape parameter 显示文摘 | HAN Xuli | 2004 | Computer Aided Geometric Design2004，21，6： | 1 |
| 11 | Quadratic trigonometric polynomial curves with a shape parameter显示文摘 | Han Xuli | 2002 | Computer Aided Geometric Design2002，19，： | 1 |
| 12 | Cubic trigonometric polynomial curves with a shape parameter显示文摘 | Han Xuli | 2004 | Computer Aided Geometric Design2004，21，： | 1 |
| 13 | Quadratic trigonometric polynomial curves with a shape parameter显示文摘 | Han Xuli | 2002 | Computer Aided Geometric Design2002，19，7： | 1 |
| 14 | Quadratic trigonometric polynomial curves with a shape parameter 显示文摘 | HAN Xuli | 2002 | Computer Aided Geometric Design2002，19，7： | 1 |
| 15 | Piecewise quadratic trigonometric polynomial curves 显示文摘 | HAN Xuli | 2003 | Mathematics of Computation2003，72，243： | 1 |
| 16 | Cubic trigonometric polynomial curves with a shape parameter显示文摘 | Han Xuli | 2004 | Computer Aided Geometric Design2004，21，6： | 1 |
| 17 | Piecewise quadratic polynomial curves with a local shape parameter显示文摘 | Han Xuli | 2006 | Journal of Computational and Applied Mathematics2006，195，12： | 1 |
| 18 | Cubic trigonometric polynomial curves with a shape parameter显示文摘 | HAN Xuli | 2004 | Computer Aided Geometric Design2004，21，6： | 1 |
| 19 | Piecewise quartic polynomial curves with a local shape parameter显示文摘 | Han Xuli | 2006 | Computer Aided Geometric Design2006，19，5： | 1 |
| 20 | The multidimensional function approximation based on constructive wavelet RBF neural network 显示文摘 | Hou Muzhou Han Xuli | 2011 | Applied Soft Computing2011，11，2： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员