[1] Barth RC,Klemmedson JO.1978.Shrub-induced spatial of dry matter,nitrogen,and organic carbon.Soil Sci Soc Am J,64:635~639 [2] Garner W,Steinberger Y.1998.Approposed mechanism for the formation of ‘fertile islands' in the desert ecosystem.J Arid Environ,16:257~262 [3] Harrington GN.1991.Effects of soil moisture on shrub seedling survival in a semi-arid grassland.Ecology,72:1138~1149 [4] Helal HM,Sauerbeck DR.1994.Influence of plant roots on C and P metabolism in soil.Plant and Soil,76:175~182 [5] Institute of Soil Sciences,Chinese Academy of Sciences (ISSCAS)(中国科学院南京土壤研究所)ed.1978.Physical and Chemical Analysis Methods of Soils.Shanghai:Shanghai Science and Technology Press.(in Chinese) [6] Lynch JM,Whipps JM.1990.Substrate flow in the rhizosphere.Plant and Soil,129:1~10 [7] Lee KK,Wani SP,Sahrawat KL,et al.1997.Nitrogen and/or phosphorus fertilization effects on organic carbon and mineral contents in the rhizosphere of field grown sorghum.Soil Sci Plant Nutr,43(1):117~126 [8] Liu J-J(刘建军),Chen H-B(陈海滨),Tian C-M(田呈明).1998.Soil properties of rhizosphere microecosystem on main kinds of trees in Huoditang forest region of Qinling.J Soil Erosion Water Cons(土壤侵蚀与水土保持学报),4(3):52~56(in Chinese) [9] Martinez-Meza E,Whitford WG.1996.Stemflow,throughfall and channelization of stemflow by roots in three Chinhuahuan desert shrubs.J Arid Environ,32:271~287 [10] Schlesinger WH.1996.On the spatial pattern of soil nutrients in desert ecosystem.Ecology,77(2):364~374 [11] Schlesinger WH,Reynolds JF,Cunningham GL,et al.1990.Biological feedbacks in global desertification.Science,247:1043~1048 [12] Schttelndreier M and Falkengren GU.1999.Plant induced alteration in the rhizosphere and the utilization of soil heterogeneity.Plant and Soil,209:297~309 [13] Smith CK,Gholz HL and de Assis Oliveiva F.1998.Soil nitrogen dynamics and plant-induced soil changes plantations and primary forest in lowland Amazonia,Brazil.Plant and Soil,200:193~203 [14] Wezel A,Rajot,JL,Herbrig C.2000.Influence of shrubs on soil characteristics and their function in Sahelian agro-ecosystems in semi-arid Niger.J Arid Environ,44:383~398 [15] Whitford,WG,Anderson J,Rice PM.1997.Stemflow contribution to the ‘fertile island' effect in creosotebush,Larrea tridentata.J Arid Environ,35:451~457 [16] Yang Y-S(杨玉盛),Yu X-S(俞新妥),Qiu R-H(邱仁辉),et al.1999.Variation of rhizospheric soil fertility under different Chinese fir rotations.Chin J Appl Environ Biol(应用与环境生物学报),5(3):254~258(in Chinese) [17] Zhang H(张红),Shi P-J(史培军),Zheng Q-H(郑秋红).2001.Research progress in relationship between shrub invasion and soil heterogeneity in a natural semi-arid grassland.Acta Phytoecol Sin(植物生态学报),25(3):366~370(in Chinese) [18] Zhou H-Y(周海燕).2000.Physioecological characteristics of four dominant species in Keerqin sandy land.Chin J Appl Ecol(应用生态学报),11(4):587~590(in Chinese) |