|本期目录/Table of Contents|

[1]何朋俊,李星月,王谢,等.川中丘陵柏木低效林开窗补阔初期土壤养分和酶活性变化[J].应用与环境生物学报,2017,23(04):693-700.[doi: 10.3724/SP.J.1145.2016.12052]
 HE Pengjun,LI Xingyue,WANG Xie,et al.Microbial diversity in Yubei Oil field determined by high-throughput sequencing[J].Chinese Journal of Applied & Environmental Biology,2017,23(04):693-700.[doi: 10.3724/SP.J.1145.2016.12052]
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川中丘陵柏木低效林开窗补阔初期土壤养分和酶活性变化()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
23卷
期数:
2017年04期
页码:
693-700
栏目:
研究论文
出版日期:
2017-08-25

文章信息/Info

Title:
Microbial diversity in Yubei Oil field determined by high-throughput sequencing
作者:
何朋俊李星月王谢苏宇李贤伟余波潘宗英
1四川农业大学林学院 成都 611130 2四川省农业科学院 成都 610066 3四川省林业工作站 成都 610036 4重庆工贸职业技术学院 涪陵 408000
Author(s):
HE Pengjun1 LI Xingyue1 WANG Xie1 2 SU Yu1 LI Xianwei1** YU Bo3 PAN Zongying4
1College of Forestry, Sichuan Agricultural University, Chengdu 611130, China 2Sichuan Academy of Agricultural Sciences, Chengdu 610066, China 3Forestry Working Station of Sichuan, Chengdu 610036, China 4Chongqing Industry & Trade Polytechnic, Fuling 408000, China
关键词:
柏木低效林开窗补阔土壤养分土壤酶活性
Keywords:
Cupressus funebris low-efficiency forest gap and mixed soil nutrient activity of soil enzyme
分类号:
S714.2
DOI:
10.3724/SP.J.1145.2016.12052
摘要:
以川中丘陵区德阳市旌阳区37年生柏木人工低效林为研究对象,采用不同开窗补阔面积(50、100、150、200 m2)的改造方式,研究该林地土壤养分和酶活性初期变化规律. 结果表明:与对照林分相比,开窗补阔之后0-5 cm土层pH值、全磷和速效磷含量均有升高,开窗补阔面积150 m2时土壤多酚氧化酶和脲酶活性较对照林有显著提高(P < 0.05),但同土层全碳含量和碳氮比随开窗补阔面积增大而减少,全氮含量和碱性磷酸酶活性则呈先减少后升高的折线趋势;开窗补阔面积为100 m2时在5-20 cm土壤中各全量养分在各处理间处于较高水平,β-葡萄糖苷酶/全碳、碱性磷酸酶/全碳、脲酶/全碳和土壤酶/全氮在开窗补阔面积为50 m2样地的5-20 cm土壤较对照林均有显著升高(P < 0.05);土壤全碳、全氮与土壤酶关系密切;各种养分和酶活性的盈缺关系揭示了开窗补阔改造的重要性. 综合来看,开窗补阔面积为100 m2对土壤养分和土壤酶活性影响效果最佳. (图2 表4 参38)
Abstract:
In this study, a transformation mode with different gapping and mixed areas (respectively of 50, 100, 150 and 200 m2) is used in the 37-year old low-efficiency Cupressus funebris plantation, located in Jingyang District, Deyang City, a hilly area of Central Sichuan, to examine change patterns of soil nutrients and enzymatic activity during early stage of the transformation. The results suggest that compared to the control (CK), the pH value, contents of total phosphorus and available phosphorus in the 0-5 cm layer of soil have all increased following the gap and mixed transformation. When the area for gap and mixed transformation was 150 m2, the polyphenol oxidase and urea enzyme activity has significantly increased (P < 0.05) compared to those of the CK, but the total carbon content and the carbon-nitrogen ratio declined along with the increase of gap and mixed area, while the total nitrogen content and the alkaline phosphatase activity exhibited a first rising and then falling trend. When the gap and mixed area was 100 m2, total nutrients in the 5-20 cm layer of soil have maintained relatively high levels across all treatment groups; β-glucosidase/total carbon, alkaline phosphatase/ total carbon, urease/total carbon and soil enzyme/total nitrogen in the 5-20 cm2 have all significantly increased (P < 0.05) when the sample area was 50m2. A close correlation between total carbon, total nitrogen and enzyme of the soil has been demonstrated; the significance of gap and mixed transformation has been revealed by the surplus-deficit relationship between various nutrients and enzyme activity. Comprehensively speaking, an optimal effect on soil nutrients and enzyme activity can be achieved when the gap and mixed area is 100 m2.

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更新日期/Last Update: 2017-08-25