| 岩溶山区土地利用方式对土壤活性有机碳及其分布的影响 |
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| 引用本文： | 蓝家程,傅瓦利,袁 波,彭景涛,张 婷,付 允.岩溶山区土地利用方式对土壤活性有机碳及其分布的影响[J].中国岩溶,2011,30(2):175-180. |
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| 作者姓名： | 蓝家程 傅瓦利 袁 波 彭景涛 张 婷 付 允 |
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| 作者单位： | 西南大学地理科学学院,重庆,400715 |
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| 基金项目： | 重庆市移民局课题(200909)、重庆市自然科学基金(40701179) |
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| 摘 要： | 对重庆中梁山不同土地利用方式下的0~50 cm土壤活性有机碳含量和分布进行研究。结果表明：不同利用方式土壤有机碳（SOC）含量大小顺序为：竹林〉菜地〉草地〉林地〉园地〉弃耕地,且均表现为0~20 cm层大于20~50 cm层;土壤溶解性有机碳（DOC）含量平均值大小顺序为：林地〉竹林〉弃耕地〉草地〉园地〉菜地,土壤溶解性有机碳占土壤有机碳的比例随土层深度增加而增加;土壤易氧化有机碳（EOC）含量及其剖面分布与土壤有机碳含量变化相一致,相关分析表明,两者的相关性达到极显著水平（R=0.852,P〈0.0001）,对土壤有机碳变化反应敏感。
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| 关 键 词： | 岩溶区 土地利用方式 土壤有机碳 土壤活性有机碳 土壤溶解性有机碳 土壤易氧化有机碳 |
| 收稿时间： | 2011/1/17 0:00:00 |
Impact of land use type on soil active organic carbon and its distribution in karst mountain |
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| LAN Jia-cheng,FU Wa-li,YUAN Bo,PENG Jing-tao,ZHANG Ting and FU Yun.Impact of land use type on soil active organic carbon and its distribution in karst mountain[J].Carsologica Sinica,2011,30(2):175-180. |
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| Authors: | LAN Jia-cheng FU Wa-li YUAN Bo PENG Jing-tao ZHANG Ting and FU Yun |
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| Institution: | School of Geography Science, Southwest University;School of Geography Science, Southwest University;School of Geography Science, Southwest University;School of Geography Science, Southwest University;School of Geography Science, Southwest University;School of Geography Science, Southwest University |
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| Abstract: | Soil active organic carbon and its distribution in the soils(0~50 cm) under different land use type are studied in Zhong Liang knoll,Chongqing.The results reveal that: 1)the contents of the soil organic carbon(SOC) under different land use types are bamboo land >vegetable land >grassland >woodland >garden >abandoned farmland,and the contents of SOC in the layer between 20 to 50 cm deep is more than that between 0 to 20 cm;2) the average contents of soil dissolved organic carbon(DOC) are woodland >bamboo lan... |
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| Keywords: | karst area land use type soil organic carbon soil active organic carbon soil dissolved organic carbon soil easily oxidized organic carbon |
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