[1]王良桂,张焕朝*,朱强根,等.苏北杨树人工林连栽林地土壤氮素矿质化原位研究[J].南京林业大学学报(自然科学版),2009,33(06):069.[doi:10.3969/j.jssn.1000-2006.2009.06.016]
 WANG Liang gui,ZHANG Huan chao*,ZHU Qiang gen,et al.In situ study on soil nitrogen mineralization in successive rotation stands of poplar plantation in north Jiangsu province[J].Journal of Nanjing Forestry University(Natural Science Edition),2009,33(06):069.[doi:10.3969/j.jssn.1000-2006.2009.06.016]
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苏北杨树人工林连栽林地土壤氮素矿质化原位研究
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
33
期数:
2009年06期
页码:
069
栏目:
研究论文
出版日期:
2009-11-30

文章信息/Info

Title:
In situ study on soil nitrogen mineralization in successive rotation stands of poplar plantation in north Jiangsu province
作者:
王良桂1张焕朝2*朱强根2蒋永丰2颜开义3王福好3
1.南京林业大学风景园林学院,江苏南京210037;2.南京林业大学森林资源与环境学院,江苏南京210037; 3.泗洪县陈圩林场,江苏泗洪223900
Author(s):
WANG Lianggui1 ZHANG Huanchao2* ZHU Qianggen2 JIANG Yongfeng2 YAN Kaiyi3 WANG Fuhao3
1.College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China; 2.College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China; 3.Chenwei Forest Farm, Sihong 223900, China
关键词:
杨树人工林连栽代次土壤氮素矿质化原位
Keywords:
poplar plantation successive rotation soil nitrogen mineralization
分类号:
S714
DOI:
10.3969/j.jssn.1000-2006.2009.06.016
文献标志码:
A
摘要:
采用土柱离子交换包法,研究了苏北地区不同连栽代次杨树人工林土壤氮矿化的状况及耕作措施对二代杨树林土壤氮矿化的影响。结果表明:不同代次的杨树人工林土壤氨化速率的季节变化较为一致,二代林土壤的氨化速率和一代林相比,并未出现明显的降低,有的月份(4、7月)甚至高于一代林。二代林的硝化速率和净氮矿化速率明显低于一代林,尤其是在3、4、5月份。耕作措施虽然增加了二代林土壤氮素年氨化量、硝化量和矿化量,但由于也相应地增加了年淋溶量(约占年矿化量的49.15%),因此土壤中的无机氮含量反而低于免耕处理。
Abstract:
By the method of in situ soil coreion exchange resin bag (ISCIERB), the characteristics of soil nitrogen mineralization in the different successive rotation stands of poplar plantation (the first rotation of fouryearold and the second rotation of fouryearold) and the effects of tillage on the soil nitrogen mineralization in the second rotation of fouryearold poplar plantation were studied in north Jiangsu province. The results showed that the seasonal changes of soil ammonification rate in two rotation stands were similar. The soil ammonification rate in the second rotation stand was not obviously decreased and even increased in April and July, compared with the first rotation stand. However, the soil nitrification rate and net mineralization rate in the second rotation stand were significantly lower than that in the first rotation stand, especially in March, April and May. Compared with the notillage, the annual ammonified, nitrified and mineralized nitrogen of soil in the second rotation stand treated with the tillage were increased. Meanwhile, the tillage treatment was obviously increased the soil N lose by leaching which accounted for 49.15% of the total annual mineralized N, therefore soil inorganic N content was lower in the stand treated with tillage than that in the stand with notillage.

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更新日期/Last Update: 2009-11-30