長期施肥潮土土壤呼吸的溫度和水分效應(yīng)-資料下載頁
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【正文】 Cui Yuing, Lu Jindeng, Han Chunru. Dynamics of organic material deposition and soil respiration in intensive and high yield agroecosystem[J]. Chinese Journal of Applied Ecology, 1997, 8(1): 5964.[18] SWINNEN J. Evaluation of the use of a model rhizodeposition technique to separate root and microbial respiration in soil [J]. Plant Soil, 1994, 165(1: 89104.[19] DAVIDSON E A, BELK E, BOONE R D, et al. Soil water content and temperature as independent or confounded factors controlling soil respiration in a temperature mixed hardwood forest[J]. Global Change Biology. 1998, 4: 217227.[20] GULLEDGE J, SCHIMEL J P. Controls on soil carbon dioxide and methane fluxes in a variety of Taiga Forest stands in Interior Alaska[J]. Ecosystems, 2000, 3: 269282.[21] XU M, QI Y. Soilsurface CO2 efflux and its spatial and temporal variations in young ponderosa pine plantation in northern California[J]. Global Change Biology, 2001, 7: 667677.[22] 丁一匯, 任國玉, 石廣玉, 等. 氣候變化國家評(píng)估報(bào)告(I): 中國氣候變化的歷史和未來趨勢[J]. 氣候變化研究進(jìn)展, 2006, 2: 38.Ding Yihui, Ren Guoyu, Shi Guangyu, et al. National assessment report of climate change (I): Climate change in China and it’s future tread [J]. Advances in Climate Change Research, 2006, 2: 38.The effect of temperature and water on soil respirationin longterm fertilized Fluvoaquci SoilMeng Lei1, Ding Weixin2, Cai Zucong21. Collage of Agriculture, Hainan University, Danzhou, Hainan 571737, China；2. State Key Laboratory of Soil and Sustainable Agriculture//Institute of Soil Science, CAS, Nanjing 210008, ChinaAbstract: Temperature and soil water content are important factors controlled soil respiration. A incubation experiment using different organic mattercontent soil derived from longterm fertilization was conducted at various soil water contents (30%, 60%, 75% and 90% WFPS (Water Filled Pore Space)) and incubation temperatures (5 ℃, 15 ℃, 25 ℃ and 35 ℃) to investigate soil respiration. The results showed that soil water content and incubation temperature both suppressed and accelerated soil repiration under defferent range. The optimum moiture of soil respiration was higher in unblanced than balnced fertilization and increased with incubation temperature suggesting the effcets of fertilizaton and temperature on the optimum water content of soil respiration. The value of Q10 of soil respiration increased with soil water content. Fertilizer application, especially manure application accelerated soil irganic carbon release. Therefore, under trend of climate warming and precipitation increasing, manure application is disadvantage of increasing siol organci carbon storage. Key words: temperature。 WFPS。 soil respiration。 Q10
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