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[1]林 玉 聂富育 杨万勤 刘 群 李婷婷 蒲 悦 牟 凌 徐振锋,**.四川盆地西缘4种人工林土壤氮转化酶季节动态*[J].应用与环境生物学报,2019,25(03):1-8.[doi:10.19675/j.cnki.1006-687x.2018.09013]
 LIN Yu,NIE Fuyu,et al.Seasonal dynamic of soil nitrogen transformation enzymes of four plantations in the western edge of Sichuan basin*[J].Chinese Journal of Applied & Environmental Biology,2019,25(03):1-8.[doi:10.19675/j.cnki.1006-687x.2018.09013]
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四川盆地西缘4种人工林土壤氮转化酶季节动态*()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
25卷
期数:
2019年03期
页码:
1-8
栏目:
研究论文
出版日期:
2019-06-25

文章信息/Info

Title:
Seasonal dynamic of soil nitrogen transformation enzymes of four plantations in the western edge of Sichuan basin*
文章编号:
201809013
作者:
林 玉1 聂富育1 杨万勤12 刘 群1 李婷婷1 蒲 悦1 牟 凌1 徐振锋1 2**
1四川农业大学生态林业研究所,四川省林业生态工程重点实验室 成都 611130 2四川农业大学华西雨屏区生态环境监测站,长江上游生态安全协同创新中心 成都 611130
Author(s):
LIN Yu1 2 NIE Fuyu1 YANG Wanqin1 2 LIU Qun1 LI Tingting 1 PU Yue1 MOU Ling 1& XU Zhenfeng1 2**
?1Key laboratory of Ecological Forestry Engineering of Sichuan Province, Institute of Ecology & Forest, Sichuan Agricultural University, Chengdu 611130, China 2Monitoring Station for Eco-environments in the Rainy Zone of Southwest China, Collaborative Innovation Center of Ecological Security in the Upper Reaches of Yangtze River, Chengdu 611130, China
关键词:
氮转化酶季节变化环境因子人工林
Keywords:
nitrogen transformation enzymes seasonal dynamic environmental factors plantations
DOI:
10.19675/j.cnki.1006-687x.2018.09013
摘要:
比较四川盆地西缘4种人工林土壤氮转化酶活性季节动态,为区域人工林生态恢复与重建提供科学依据。于2015年3月、6月、9月和12月采集四川盆地西缘都江堰灵岩山4种人工林(柳杉林、含笑林、桢楠林、麻栎林)2个层次(0-20 cm和20-40 cm)的土壤样品,测定3种与氮转化相关的土壤酶活性(脲酶、硝酸还原酶和亚硝酸还原酶)。相比亚硝酸还原酶,土壤脲酶和硝酸还原酶表现出明显的季节动态。在同一土壤层次,3种土壤酶活性在不同林型下具有相似的季节动态。春季时期两个层次土壤脲酶活性显著高于其它三个季节;秋季时期4种人工林均具有较高土壤硝酸还原酶活性。土壤脲酶4个季节平均值依次为桢楠林(0.914 mg /g)>含笑林(0.704 mg /g)>柳杉林(0.647 mg /g)>麻栎林(0.640 mg /g);土壤硝酸还原酶4个季节平均值依次为柳杉林(0.017 mg /g)>含笑林(0.016 mg /g)>麻栎林(0.014 mg /g)>桢楠林(0.013 mg /g);亚硝酸还原酶4个季节平均值依次为,桢楠林(0.286 mg /g)>含笑林(0.276 mg /g)>柳杉林(0.273 mg /g)>麻栎林(0.236 mg /g)。方差分析表明,林型对土壤酶影响与季节、土壤层次和酶种类有关。综上所述,相比于林型,季节动态对土壤氮转化酶活性具有更大影响。(图2表3参32)
Abstract:
The aim of the study was to compare the activities of enzymes involved nitrogen transfomation (urease, nitrate reductase and nitrite reductase), and to provide some scientific reference for ecological restoration in this area. Soil samples of two layers (0-20 cm and 20-40 cm) were collected from 4 plantations ( Cryptomeria fortunei, Michelia wilsonii, Phoebe zhennan and Quercus acutissima) in March, June, September and December of 2015 in the western edge of Sichuan basin. Soil samples were used to determine three soil enzyme activities (urea, nitrate reductase and nitrite reductase) involved in nitrogen transformation. Regardless of forest type, t here were significantly seasonal dynamic in soil urease and nitrate reductase except for nitrite reductase. Soil urease activity was significantly higher in spring than other three seasons. In autumn, all four plantations had relatively high soil nitrate reductase activity as compared to other three seasons. The average value of soil urease over four seasons was Phoebe zhennan (0.914 mg/g) > Michelia wilsonii (0.703 mg/g) > Cryptomeria fortune (0.647 mg/g) > Quercus acutissima (0.640 mg/g) ; The average value of soil nitrate reductase in four seasons were Cryptomeria fortune (0.017 mg/g) > Michelia wilsonii (0.016 mg/g) > Quercus acutissima (0.014 mg/g) > Phoebe zhennan (0.013 mg/g) ; the average value of soil nitrite reductase was Phoebe zhennan (0.286 mg /g) > Michelia wilsonii (0.276 mg/g) > Cryptomeria fortune (0.273 mg /g) > Quercus acutissima (0.236 mg /g). The effects of forest type on soil enzymes was dependent on soil layer, season and enzyme category. In conclusion, season-driven environmental variations may have stronger effects on soil enzyme activities involved in nitrogen cycling as compared to forest type.? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??

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备注/Memo

备注/Memo:
收稿日期:2018-09-08 接受日期 Accepted: 2018-11-15*国家自然科学基金项目(31570601,31570445)、四川省教育厅重点基金(17ZA0321)和中国博士后科学基金项目(2014T70880)资助 **通讯作者(E-mail:sicauxzf@163.com)点击摘要页题目后的“PDF”可下载阅读全文;本文为已录用的作者修定稿,尚未经编辑全面修改。引用本文请注明出处本刊;发表刊期和页码将以正式出版时的安排为准,但DOI确定不变。
更新日期/Last Update: 2018-12-27