| 大气CO2浓度升高和氮肥施用对小麦生长期间土壤溶液阴离子含量的影响 |
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| 引用本文： | 程磊,朱建国,陈改苹,周淼,曾青,谢祖彬,庞静. 大气CO2浓度升高和氮肥施用对小麦生长期间土壤溶液阴离子含量的影响[J]. 土壤, 2005, 37(1): 80-84 |
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| 作者姓名： | 程磊 朱建国 陈改苹 周淼 曾青 谢祖彬 庞静 |
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| 作者单位： | 1. 中国科学院南京土壤研究所,南京,210008
2. 南京理工大学,南京,210094 |
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| 基金项目： | 国家自然科学基金项目(NSFC-40271061)，国家自然科学基金重大国际合作研究项目(NSFC-40120140817)，中国科学院知识创新重要方向项目(KZCX2-408)共同资助。 |
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| 摘 要： | 在中国稻/麦轮作 FACE(Free-Air CO2 Enrichment)平台上,采用根际土壤溶液取样器来研究大气CO2 浓度升高和不同 N 肥水平对小麦生长期间土壤溶液离子组成的影响。结果表明,高 CO2 浓度条件对土壤溶液pH 值无显著影响,但却普遍降低土壤溶液中 Cl-、NO3 和 SO4 3 种主要阴离子含量;相对于 N 150 kg/hm2 施 N - 2-水平,N 250 kg/hm2 施用量显著降低土壤溶液中 NO3 含量,同时也明显降低 Cl-和 SO4 含量。 - 2-
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| 关 键 词： | CO_2浓度升高 氮肥 阴离子 土壤溶液 小麦 |
EFFECTS OF FREE-AIR CO2 ENRICHMENT AND NITROGEN SUPPLY ON THE CONCENTRATION OF ANION OF SOIL SOLUTION IN WHEAT FIELD |
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| CHENG Lei,ZHU Jian-guo,CHEN Gai-ping,ZHOU Miao,ZENG Qing,XIE Zu-bin and PANG Jing. EFFECTS OF FREE-AIR CO2 ENRICHMENT AND NITROGEN SUPPLY ON THE CONCENTRATION OF ANION OF SOIL SOLUTION IN WHEAT FIELD[J]. Soils, 2005, 37(1): 80-84 |
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| Authors: | CHENG Lei ZHU Jian-guo CHEN Gai-ping ZHOU Miao ZENG Qing XIE Zu-bin PANG Jing |
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| Affiliation: | CHENG Lei 1 ZHU Jian-guo1 CHEN Gai-ping1 ZHOU Miao2 ZENG Qing1 XIE Zu-bin1 PANG Jing1 |
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| Abstract: | Effects of elevated atmospheric CO2 and nitrogen supply on concentration of anion in soil solution were investigated in a FACE(Free-Air CO2 Enrichment)study. Soil solutions were extracted with the Rhizon SMS-MOM from a wheat field. Little effect of CO2 treatment on soil solution pH was observed in all cases. Elevated CO2 decreased the concentration of Cl-, NO3 and SO4 in the soil solution, but not significantly in statistics in most - 2- cases. Normal nitrogen supply not only increased the concentration of NO3 significantly but also heightened the content - of Cl- and SO4 significantly in samples regardless of gathering dates. 2- |
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| Keywords: | Free-air CO_2 enrichment Nitrogen supply Anion Soil solution Wheat |
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