食细菌线虫对热或铜胁迫下土壤功能稳定性的影响

生态学杂志

食细菌线虫对热或铜胁迫下土壤功能稳定性的影响

冯运,朱冬,刘满强,陈小云^**,李辉信,胡锋

(南京农业大学资源与环境科学学院土壤生态实验室，南京 210095)

出版日期:2013-07-10 发布日期:2013-07-10

Effects of bacterial-feeding nematodes on soil functional stability under heat or copper stress.

FENG Yun, ZHU Dong, LIU Man-qiang, CHEN Xiao-yun^**, LI Hui-xin, HU Feng

(Soil Ecology Lab, College of Resources & Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China)

Online:2013-07-10 Published:2013-07-10

摘要/Abstract

摘要： 在室内模拟重金属铜的持续胁迫或者短期加热(18 h，40 ℃)的瞬时胁迫条件下，以大麦叶粉短期分解过程代表土壤功能，研究了土壤食细菌线虫对土壤生态功能稳定性（抗性和恢复力）的影响。结果表明，在未施加任何胁迫对照处理中和铜胁迫条件下，食细菌线虫在一定程度上有促进土壤微生物活性的趋势。在施加铜胁迫后第15天，接种食细菌线虫导致土壤基础呼吸显著增加，并且接种食细菌线虫处理的土壤功能抗性显著高于未接种线虫处理。而在热胁迫条件下，接种食细菌线虫对土壤基础呼吸和土壤微生物活性没有显著影响，且接种食细菌线虫处理的土壤功能抗性低于未接种线虫处理。在两种胁迫条件下，接种食细菌线虫反而降低了土壤功能的恢复力。

关键词: 土石山区, 氧同位素, 水分来源, 退耕还林

Abstract: A microcosm experiment was conducted to study the effects of inoculating bacterial-feeding nematodes on the soil ecological functional stability under persistent Cu²⁺ stress or transient heating stress (40 ℃ for 18 h), with the shortterm decomposition of barley leaf power as the representative of soil function. In the treatments without any stress (blank control) and with Cu²⁺ stress, soil bacterialfeeding nematodes could promote soil microbial activities to some extent. On the 15th day of Cu²⁺ stress, the soil basal respiration in nematodesinoculated treatments increased significantly, and the soil functional resistance was significantly higher than that in the treatments without nematodes inoculated. However, under heating stress, inoculating bacterialfeeding nematodes had less effect on the soil basal respiration and microbial activities, and the soil functional resistance was lower than that in treatments without nematodes inoculation. It was suggested that under the two stresses, inoculating bacterial-feeding nematodes could decrease soil functional resilience.

Key words: returning cropland to forestland, oxygen isotope, rocky mountainous area, water source.

冯运,朱冬,刘满强,陈小云**,李辉信,胡锋. 食细菌线虫对热或铜胁迫下土壤功能稳定性的影响[J]. 生态学杂志.

FENG Yun, ZHU Dong, LIU Man-qiang, CHEN Xiao-yun**, LI Hui-xin, HU Feng. Effects of bacterial-feeding nematodes on soil functional stability under heat or copper stress.[J]. cje.

[1]	张宇,张明军,王圣杰,郭蓉,车存伟,杜勤勤,马转转,苏鹏燕. 基于稳定氧同位素确定植物水分来源不同方法的比较 [J]. 生态学杂志, 2020, 39(4): 1356-1368.
[2]	曾欢欢,刘文杰,吴骏恩,朱习爱. 西双版纳地区丛林式橡胶林内植物的水分利用策略 [J]. 生态学杂志, 2019, 38(2): 394-403.
[3]	孟德坤,闵孝君,臧永新,马剑英. 塔克拉玛干沙漠南缘人工防护林和自然群落多枝柽柳叶片养分特征与水分利用策略 [J]. 生态学杂志, 2019, 38(11): 3245-3253.
[4]	张俊,崔高仰,李亲凯,黄俊,陶月乐,杨梦迪,李斯奇,李晓东. 筑坝拦截对梯级水库水体氢氧同位素组成的影响：以嘉陵江为例 [J]. 生态学杂志, 2018, 37(3): 679-687.
[5]	刘静,李思亮,钟君,丁虎. 西江上游河水中硫酸盐来源及其对化学风化的影响 [J]. 生态学杂志, 2018, 37(3): 714-722.
[6]	夏妍梦,李彩,李思亮,狄崇利,岳甫均,彭慧. 天津海河氮动态变化对夏季强降雨的响应过程 [J]. 生态学杂志, 2018, 37(3): 743-750.
[7]	石玉琼,郑亚云,李团胜. 榆林地区2000—2014年NDVI时空变化 [J]. 生态学杂志, 2018, 37(1): 211-218.
[8]	朱金方1,2,3,刘京涛2*,孙景宽2,赵艳云2,陆兆华2,3,李俊生1. 贝壳堤岛不同生境下柽柳水分来源比较 [J]. 生态学杂志, 2017, 36(8): 2364-2374.
[9]	田丽艳1,2,郭庆军1*,何会军3,郎赟超4,胡健4,杨俊兴1,魏荣菲1,2,韩晓昆1,2. 磷酸盐氧同位素技术在环境科学中的研究进展 [J]. 生态学杂志, 2016, 35(7): 1947-1956.
[10]	李亲凯1,2,杨周1,2,黄俊1,2,崔高仰1,2,李晓1*. 大气颗粒物稳定同位素组成的研究进展 [J]. 生态学杂志, 2016, 35(4): 1063-1071.
[11]	师贺雄1,王兵1,2,牛香1,2*. 长江、黄河中上游省份退耕还林工程生态系统服务 [J]. 生态学杂志, 2016, 35(11): 2903-2911.
[12]	刘光生1**,王根绪2,高洋2,赵超1. 长江源多年冻土区季节性河流氢、氧同位素组成 [J]. 生态学杂志, 2015, 34(6): 1622-1629.
[13]	曾伟,熊彩云,肖复明**,余林,熊振宇. 不同密度退耕雷竹春季林冠截留特性 [J]. 生态学杂志, 2014, 33(5): 1178-1182.
[14]	朱婷婷1,2,李伟1,刘成刚1,2,潘开文1**. 四川盆地麻竹、巨桉人工林对土壤线虫群落结构的影响 [J]. 生态学杂志, 2014, 33(4): 1034-1041.
[15]	丁亚丽1,2,3,陈洪松1,2,杨静1,2,3,聂云鹏1,2**,王克林1,2. 基于氢氧同位素的不同木材密度植物茎水最短抽提时间 [J]. 生态学杂志, 2014, 33(4): 1004-1009.