CHANGES IN SOIL NITROGEN AVAILABILITY DUE TO STAND DEVELOPMENT AND MANAGEMENT PRACTICES ON SEMI-ARID SANDY LANDS, IN NORTHERN CHINA
文献类型：期刊论文
| 作者 | Chen, FS ; Zeng, DH ; Fahey, TJ |
| 刊名 | LAND DEGRADATION & DEVELOPMENT
 |
| 出版日期 | 2009 |
| 卷号 | 20期号:5页码:481-491 |
| 关键词 | soil N transformation ion exchange resin bag method Pinus sylvestris var. mongolica Livt. Keerqin sandy lands China |
| ISSN号 | 1085-3278 |
| 通讯作者 | Chen, FS, 999 Xuefuda Rd, Nanchang 330031, Peoples R China |
| 中文摘要 | Soil nitrogen (N) availability is one of the limiting factors for plant growth on sandy lands. Little is known about impacts of afforestation on soil N availability and its components in southeastern Keerqin sandy lands, China. In this study. we measured N transformation under sandy Mongolian pine (Pinus sylvestris var. mongolica Litv.) plantations of different ages (grassland. young, middle-aged, close-to-mature) and management practices (non-grazing and free-grazing) during the growing seasons using the ion exchange resin bag method. Results showed that, for all plots and growing, season soil NH4+-N, NO3--N, mineral N, and relative nitrification index, varied from 0.18 to 1.54, 0.96 to 22.05, 1.23 to 23.58 mu g d(-1) g(-1) resin. and 0.76 to 0.97, respectively, and NO3--N dominated the available N amount due to intense nitrification in these ecosystems. In general, the four indices significantly increased in the oldest plantation, with corresponding values in non-grazing sites lower than those in free-grazing sites (p < 0.05). Our Studies indicated that it is a slow, extended process to achieve improvement in soil quality after afforestation of Mongolian pine in the study area. Copyright (C) 2009 John Wiley & Sons, Ltd. |
| 学科主题 | Environmental Sciences; Soil Science |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [30872011, 3060047]; National Key Technologies R and D Program of China [2006BAD26B0201-1] |
| 语种 | 英语 |
| WOS记录号 | WOS:000270773800002 |
| 公开日期 | 2011-09-23 |
| 源URL | [http://210.72.129.5/handle/321005/54025]  |
| 专题 | 沈阳应用生态研究所_沈阳应用生态研究所_期刊论文 |
| 推荐引用方式 GB/T 7714 | Chen, FS,Zeng, DH,Fahey, TJ. CHANGES IN SOIL NITROGEN AVAILABILITY DUE TO STAND DEVELOPMENT AND MANAGEMENT PRACTICES ON SEMI-ARID SANDY LANDS, IN NORTHERN CHINA[J]. LAND DEGRADATION & DEVELOPMENT,2009,20(5):481-491. |
| APA | Chen, FS,Zeng, DH,&Fahey, TJ.(2009).CHANGES IN SOIL NITROGEN AVAILABILITY DUE TO STAND DEVELOPMENT AND MANAGEMENT PRACTICES ON SEMI-ARID SANDY LANDS, IN NORTHERN CHINA.LAND DEGRADATION & DEVELOPMENT,20(5),481-491. |
| MLA | Chen, FS,et al."CHANGES IN SOIL NITROGEN AVAILABILITY DUE TO STAND DEVELOPMENT AND MANAGEMENT PRACTICES ON SEMI-ARID SANDY LANDS, IN NORTHERN CHINA".LAND DEGRADATION & DEVELOPMENT 20.5(2009):481-491. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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