Responses of soil enzyme activity and microbial community compositions to nitrogen addition in bulk and microaggregate soil in the temperate steppe of Inner Mongolia
文献类型：期刊论文
| 作者 | Yu, Qiang4; Shi, Yao1; Sheng, Lianxi1; Wang, Zhongqiang1,2; Zhang, Xinyu3; He, Nianpeng3 |
| 刊名 | EURASIAN SOIL SCIENCE
 |
| 出版日期 | 2016-10-01 |
| 卷号 | 49期号:10页码:1149-1160 |
| 关键词 | Soil Microaggregate Enzyme Activity Plfa Long-term n Addition Temperate Steppe |
| ISSN号 | 1064-2293 |
| DOI | 10.1134/S1064229316100124 |
| 英文摘要 | In order to explore the responses of soil enzyme activities and microbial community compositions to long-term nitrogen (N) addition in both bulk soil and microaggregate of chestnut soil, we conducted a 7-year urea addition experiment with N treatments at 6 levels (0, 56, 112, 224, 392 and 560 kg N ha(-1) yr(-1)) in a temperate steppe of Inner Mongolia in China. Soil properties and the activities of four enzymes involved in carbon (C), nitrogen (N) and phosphorus (P) cycling were measured in both bulk soil and microaggregate, and phospholipid fatty acids (PLFAs) were measured in bulk soil. The results indicated that: 1) in bulk soil, N addition significantly decreased beta-1,4-glucosidase (BG) and leucine aminopeptidase (LAP) activities at the treatment amounts of 224, 392 and 560 kg N ha(-1) yr(-1), and obviously suppressed beta-1,4-N-acetylglucosaminidase (NAG) activity at the treatment amount of 560 kg N ha(-1) yr(-1). N addition enhanced total PLFAs (totPLFAs) and bacterial PLFAs (bacPLFAs) at the treatment amounts of 392 and 560 kg N ha(-1) yr(-1), respectively, but fungal PLFAs showed no response to N addition. The activities of BG, NAG and LAP were positively correlated with soil pH, but negatively correlated with the concentration of NH (4) (+) -N; 2) in microaggregate (53-250 mu m), the activities of BG, NAG and AP showed no response to increased addition of N, but the significantly decreased LAP activity was observed at the treatment amount of 392 kg N ha(-1) yr(-1). These results suggested that enzyme activities were more sensitive to N addition than PLFA biomarkers in soil, and LAP activity in microaggregate may be a good indicator for evaluating N cycle response to long-term N addition. |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000385135500008 |
| 出版者 | MAIK NAUKA/INTERPERIODICA/SPRINGER |
| 源URL | [http://210.72.129.5/handle/321005/122882]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Wang, Zhongqiang |
| 作者单位 | 1.Northeast Normal Univ, State Environm Protect Key Lab Wetland Ecol & Veg, Changchun 130024, Peoples R China 2.Northeast Normal Univ, Sch Geog Sci, Changchun 130024, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 4.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Qiang,Shi, Yao,Sheng, Lianxi,et al. Responses of soil enzyme activity and microbial community compositions to nitrogen addition in bulk and microaggregate soil in the temperate steppe of Inner Mongolia[J]. EURASIAN SOIL SCIENCE,2016,49(10):1149-1160. |
| APA | Yu, Qiang,Shi, Yao,Sheng, Lianxi,Wang, Zhongqiang,Zhang, Xinyu,&He, Nianpeng.(2016).Responses of soil enzyme activity and microbial community compositions to nitrogen addition in bulk and microaggregate soil in the temperate steppe of Inner Mongolia.EURASIAN SOIL SCIENCE,49(10),1149-1160. |
| MLA | Yu, Qiang,et al."Responses of soil enzyme activity and microbial community compositions to nitrogen addition in bulk and microaggregate soil in the temperate steppe of Inner Mongolia".EURASIAN SOIL SCIENCE 49.10(2016):1149-1160. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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