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| 珠江三角洲典型生态系统有机含硫气体地气交换通量比较 | |
| 引用本文： | 易志刚,王新明,盛国英,傅家谟. 珠江三角洲典型生态系统有机含硫气体地气交换通量比较[J]. 地球与环境, 2008, 36(4) |
| 作者姓名： | 易志刚 王新明 盛国英 傅家谟 |
| 作者单位： | 福建农林大学资源与环境学院,福建,福州,350002;中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东,广州,510640;中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东,广州,510640 |
| 基金项目： | 国家重点基础研究发展计划 ， 福建农林大学青年教师科研基金项目 |
| 摘 要： | 选取珠江三角洲森林、稻田和城市草地和菜地为研究对象,运用静态箱法,测量土壤COS、DMS、CS2和DMDS通量,并分析了环境因子对含硫气体交换速率的影响。结果表明,稻田和菜地交换速率最大,城市草地次之,森林土壤交换速率最小。森林土壤吸收COS,释放DMS,有凋落物土壤气体交换速率高于无凋落物土壤,CS2和DMDS源与汇存在很大不确定性。森林COS通量受温度、土壤含水量、土壤肥力、土壤微生物和土壤呼吸的共同影响;有水稻稻田吸收COS,无水稻稻田释放COS,有水稻稻田DMS释放速率显著高于无水稻稻田。干旱稻田土壤吸收COS,水淹土壤释放COS,但DMS、CS2和DMDS释放速率两者间无显著影响;城市草地吸收COS释放DMS,CS2和DMDS存在不确定性,有草土壤COS和DMS交换速率高于无草土壤,割草前后气体释放速率无显著变化;菜地释放VOSCs,其中DMDS占75%。 |
| 关 键 词： | 挥发性有机硫化物 通量 土壤 珠江三角洲 |
FLUXES OF VOLATILE ORGANIC SULFUR COMPOUNDS BETWEEN LAND SURFACES AND ATMOSPHERE UNDER TYPICAL ECOSYSTEMS IN THE PEARL RIVER DELTA |
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| YI Zhi-gang,WANG Xin-ming,SHENG Guo-ying,FU Jia-mo. FLUXES OF VOLATILE ORGANIC SULFUR COMPOUNDS BETWEEN LAND SURFACES AND ATMOSPHERE UNDER TYPICAL ECOSYSTEMS IN THE PEARL RIVER DELTA[J]. Earth and Environment, 2008, 36(4) | |
| Authors: | YI Zhi-gang WANG Xin-ming SHENG Guo-ying FU Jia-mo |
| Affiliation: | 1.College of Resources and Environment;Fujian Agriculture and Forestry University;Fuzhou 350002;China;2.State Key Laboratory of Organic Geochemistry;Guangzhou Institute of Geochemistry;Chinese Academy of Sciences;Guangzhou 510640;China |
| Abstract: | Typical ecosystems,including forest,rice paddy field,urban lawn and vegetable field,in the Pearl River Delta were selected to measure carbonyl sulfide(COS),dimethyl sulfide(DMS),carbon disulfide(CS2) and dimethyl disulfide(DMDS) exchange fluxes between soil and atmosphere using the static enclosure chamber technique,and the influence of environmental factors on the fluxes were also investigated.The results showed that:(1) the higher exchange rates were observed in rice paddy and vegetable fields,with the lo... |
| Keywords: | volatile organic sulfur compound(VOSC) flux soil Pearl River Delta |
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