Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/BF00009968 |
EFFECTS OF ELEVATED CO2 AND NITROGEN-FERTILIZATION PRETREATMENTS ON DECOMPOSITION ON TALLGRASS PRAIRIE LEAF-LITTER | |
KEMP, PR; WALDECKER, DG; OWENSBY, CE; REYNOLDS, JF; VIRGINIA, RA | |
通讯作者 | KEMP, PR |
来源期刊 | PLANT AND SOIL
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ISSN | 0032-079X |
出版年 | 1994 |
卷号 | 165期号:1页码:115-127 |
英文摘要 | Standing dead and green foliage litter was collected in early November 1990 from Andropogon gerardii (C-4), Sorghastrum nutans (C-4), and Poa pratensis (C-3) plants that were grown in large open-top chambers under ambient or twice ambient CO2 and with or without nitrogen fertilization (45 kg N ha(-1)). The litter was placed in mesh bags on the soil surface of pristine prairie adjacent to the growth treatment plots and allowed to decay under natural conditions. Litter bags were retrieved at fixed intervals and litter was analyzed for mass loss, carbon chemistry, and total Kjeldahl nitrogen and phosphorus. The results indicate that growth treatments had a relatively minor effect on the initial chemical composition of the litter and its subsequent rate of decay or chemical composition. This suggests that a large indirect effect of CO2 on surface litter decomposition in the tallgrass prairie would not occur by way of changes in chemistry of leaf litter However, there was a large difference in characteristics of leaf Litter decomposition among the species. Paa leaf fitter had a different initial chemistry and decayed more rapidly than C-4 grasses. We conclude that an indirect effect of CO2 on decomposition and nutrient cycling could occur if CO2 induces changes in the relative aboveground biomass of the prairie species. |
英文关键词 | ANDROPOGON GERARDII CARBON CHEMISTRY CARBON DIOXIDE LITTER QUALITY POA PRATENSIS SORGHASTRUM NUTANS |
类型 | Article ; Proceedings Paper |
语种 | 英语 |
国家 | USA |
收录类别 | CPCI-S ; SCI-E |
WOS记录号 | WOS:A1994PZ67100012 |
WOS关键词 | PINE NEEDLE LITTER ; ATMOSPHERIC CO2 ; PHOSPHORUS DYNAMICS ; CHIHUAHUAN DESERT ; LIGNIN CONTENT ; ECOSYSTEMS ; PLANTS ; ACCUMULATION ; RESPONSES ; DETRITUS |
WOS类目 | Agronomy ; Plant Sciences ; Soil Science |
WOS研究方向 | Agriculture ; Plant Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/130599 |
作者单位 | (1)SAN DIEGO STATE UNIV,DEPT BIOL,SAN DIEGO,CA 92182;(2)KANSAS STATE UNIV,DEPT AGRON,MANHATTAN,KS 66506;(3)DARTMOUTH COLL,ENVIRONM STUDIES PROGRAM,HANOVER,NH 03755 |
推荐引用方式 GB/T 7714 | KEMP, PR,WALDECKER, DG,OWENSBY, CE,et al. EFFECTS OF ELEVATED CO2 AND NITROGEN-FERTILIZATION PRETREATMENTS ON DECOMPOSITION ON TALLGRASS PRAIRIE LEAF-LITTER[J],1994,165(1):115-127. |
APA | KEMP, PR,WALDECKER, DG,OWENSBY, CE,REYNOLDS, JF,&VIRGINIA, RA.(1994).EFFECTS OF ELEVATED CO2 AND NITROGEN-FERTILIZATION PRETREATMENTS ON DECOMPOSITION ON TALLGRASS PRAIRIE LEAF-LITTER.PLANT AND SOIL,165(1),115-127. |
MLA | KEMP, PR,et al."EFFECTS OF ELEVATED CO2 AND NITROGEN-FERTILIZATION PRETREATMENTS ON DECOMPOSITION ON TALLGRASS PRAIRIE LEAF-LITTER".PLANT AND SOIL 165.1(1994):115-127. |
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