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| 1 | Applications of stable isotopes to study plant-animal relationships in terrestrial ecosystems显示文摘As natural tracers, stable isotopes have been extensively used in plant physiological, ecological and envi- ronmental research. Recently, animal physiological ecologists have also applied stable isotope techniques to study plant- animal relationships. The isotopic compositions of animal body generally reflect and integrate their diets over a time period ranging from hours to years to the lifetime of an indi- vidual. When animal living habitat changes or animals move to a new environment, the animal isotopic compositions will shift accordingly. Thus, stable isotope signatures of an ani- mal can truly reflect its food sources, habitat, distribution and movement patterns during a given time period. More- over, by analyzing animal-tissue isotopic compositions at different temporal scales, we can improve our understanding of animal adaptation to environmental changes. Stable iso- tope technique also provides an ideal tool to study animal foodweb relationship and community structure because of isotopic fractionation during the processes of nutrient as- similation by animals. Stable isotope technique can continu- ously measure animal trophic position in a foodweb, which can eventually reveal the predator-prey relationship and its role in determining matter balance and energy flow in the entire ecosystem. Stable isotope technique has been one of the most important and efficient tools in studying plant-animal relationship. In this paper, we first review recent advances in the application of stable isotope techniques to plant-animal relationship research then evaluate their advantages and disadvantages, and finally discuss some future directions associated with stable isotope applications to plant-animal relationship research. | WANG Jianzhu1,LIN Guanghui1,2,HUANG Jianhui1 & HAN Xingguo1 1.Key Laboratory of Quantitative Vegetation Sciences and Research Center for Plant Ecology and Biodiversity Conservation,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China 2.Department of Global Ecology,Carnegie Institution of Washington,Stanford,CA 94305,USA | 2004 | Chinese Science Bulletin2004，49，22： | 6 |
| 2 | Social entrepreneurship: Towards conceptualization显示文摘 | Mort G S Weerawardena J and Carnegie K | 2003 | International Journal of Nonprofit and Voluntary Sector Marketing2003，8，1： | 1 |
| 3 | Social Entrepreneurship: Towards Conceptualization显示文摘 | MORT G S WEERAWARDENA J and CARNEGIE K | 2003 | International Journal of Nonprofit and VoluntarySector Marketing2003，81，1： | 1 |
| 4 | Rheological activity of peptides, simple disulphides and simple thiols in wheat dough显示文摘 | Jones I K and Carnegie P R | 1969 | Journal of the Science of Food and Agriculture1969，20，： | 1 |
| 5 | The total glutathione content and its relation to rheological properties of dough显示文摘 | Coventry D R Carnegie P R and Jones I K | 1972 | Journal of the Science of Food andAgriculture1972，23，： | 1 |
| 6 | MECHANISM OF HYDROGEN FACILICATED CLEAVAGE IN TITANUM ALUMINIDE显示文摘Both hydrogen induced cracking and overload crack initiated at same characteristic distance,r*,within the plastic zone along the slip line when the plastic zone developed to a critical ex-tent.For the overload crack.KIC=αr*1/2[σF(n+1)/2n/σys(1-n)/2n],σF=σ0+g[2μbσth/π2L(1-v)]1/2For the hydrogen induced cracking:KIH=αr*1/2[σF(H)(n+1)/2n/σys(H)(1-n)/2n],σF(H)={σ0(H)+g[2μbσth(H)/π2L(1-v)]1/2}/kHydrogen pomoting the dislocation multiplication and motion would result in σ0(H)<σ0,k>1,Therefore,hydrogen promoting the cleavage fracture in titanum aluminide can be dueto that hydrogen facilitates the local plastic deformation,which results in σF(H)<σF and thenKIH<KIC. | CHU Wuyang XIAO Jimei University of Science and Technology Beijing,Beijing,ChinaTHOMPSON AW Carnegie Mellon University,U.S.A | 1992 | Acta Metallurgica Sinica(English Letters)1992，5，4： | 0 |
| 7 | Magnetic Properties and Thermal Stability of Pr_(1-x)La_xCo_(5-y)Alloys显示文摘Pr1-xLaxCo5-y (x=0, 0.15. 0.25, 0.35,1.0, y=0.5, 0.7, 0.9, 1.0) alloys were investigated. The effect of the variation of x and y on magnetic properties and thermal stability of the alloys were studied. The magnetic properties for the Pr0.85La0.15Co4.3 and Pr0.75La0.25Co4.1 magnets are iHc=368 kA/m, Br=0.91 T, (BH)max=145.6 kJ/m3, αBr=-0.03%/℃ and iHc=568 kA/m,Br=0.8 T, (BH)max=127.2 kJ/m3,αBr,=-0.06%/℃, respectively The phase structures of as-cast alloys and magnets were | Fazeng LIAN (Dept. of Materials Science and Engineering, Northeastern University, Shenyang, 110006, China)Meiqing HUANG, S.Simizu and W.E.Wallace (Carnegie Mellon Institute, Carnegie Mellon University, Pittsburgh, PA 15213, USA) | 1995 | Journal of Materials Science & Technology1995，11，6： | 0 |
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