科尔沁沙地小叶锦鸡儿地上-地下生物量分配格局

生态学杂志

科尔沁沙地小叶锦鸡儿地上-地下生物量分配格局

牛存洋^1,2,阿拉木萨^1**,宗芹²,骆永明¹,押田敏雄³,孙贵凡⁴,刘谦⁴

（¹中国科学院沈阳应用生态研究所，沈阳 110016； ^2中国科学院大学，北京 100049； ^3日本麻布大学兽医学部，相模原-252-5201；⁴翁牛特旗林业局，内蒙古翁牛特旗 024500）

出版日期:2013-08-10 发布日期:2013-08-10

Allocation patterns of above- and below-ground biomass of Caragana microphylla in Horqin Sandy Land, North China.

NIU Cun-yang^1,2, Alamusa^1**, ZONG Qin², LUO Yong-ming¹, Toshio Oshid³, SUN Gui-fan⁴, LIU Qian^4

(¹Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; ²University of Chinese Academy of Sciences, Beijing 100049, China; ³Azabu University, Sagamihara 2525201, Japan; ⁴Wengniute Banner Forestry Bureau, Inner Mongolia, Wengniute Banner 024500, Inner Mongolia, China)

Online:2013-08-10 Published:2013-08-10

摘要/Abstract

摘要： 以科尔沁沙地18年生（成龄）和4年生（幼龄）人工小叶锦鸡儿以及天然小叶锦鸡儿灌丛为研究对象，采用分层挖取根系法调查不同植被区小叶锦鸡儿的根系分布特点，研究其在生物量分配、根冠比、根系分布等方面对干旱环境的响应。结果表明：1）小叶锦鸡儿倾向于把更多的生物量分配于地下，其中天然植被地下生物量比重最大，4年生植被地下生物量比重最小。2）小叶锦鸡儿灌丛根系生物量随着土层深度的增加而逐渐减少，其根系主要分布在0～100 cm土层中。3）4年生小叶锦鸡儿吸收根呈现浅层分布特性，在地下0～50 cm吸收根生物量显著高于18年生和天然植被（P<0.05）；18年生和天然植被吸收根更多分布于50～100 cm土层中。天然小叶锦鸡儿输导根生物量在50～100 cm土层中显著高于4年生和18年生植被（P＜0.05）。4）小叶锦鸡儿灌丛地上-地下生物量符合异速生长模型的幂函数。

关键词: 氨氧化古菌(AOA), 氮循环, 酸性森林土, 氨氧化细菌(AOB)

Abstract: Taking the 4 and 18-year-old artificial plantations and the natural stand of Caragana microphylla in Horqin Sandy Land as the objects, and through digging root system by layers, this paper investigated the features of C. microphylla root distribution in different vegetation zones, and studied the responses of C. microphylla in its biomass allocation, root/shoot ratio, and root distribution to dry environment. The C. microphylla tended to allocate more biomass to roots. Among the three vegetation zones, natural stand and 4 years old artificial plantation had the largest and the smallest proportion of belowground biomass, respectively. The root biomass decreased gradually with soil depth, and the roots were mainly distributed in the 0-100 cm soil layer. The biomass of the absorptive roots of 4 years old C. microphylla plantation was more distributed in surface soil layer, being significantly greater than that of 18 years old plantation and natural stand (P<0.05) in 0-50 cm soil layer. However, the 18 years old plantation and the natural stand had more absorptive root biomass in 50-100 cm soil layer. The conductive root biomass of natural stand in 50-100 cm soil layer was significantly greater than that of 4 and 18-year-old plantations. The relationships between the above and belowground biomass allocations of C. microphylla were characterized by allometry model.

Key words: acidic forest soil, ammonia-oxidizing bacteria (AOB), N cycling., ammonia-oxidizing archaea (AOA)

牛存洋1,2,阿拉木萨1**,宗芹2,骆永明1,押田敏雄3,孙贵凡4,刘谦4. 科尔沁沙地小叶锦鸡儿地上-地下生物量分配格局[J]. 生态学杂志.

NIU Cun-yang1,2, Alamusa1**, ZONG Qin2, LUO Yong-ming1, Toshio Oshid3, SUN Gui-fan4, LIU Qian4. Allocation patterns of above- and below-ground biomass of Caragana microphylla in Horqin Sandy Land, North China.[J]. cje.

[1]	胡同欣, 丁海磊, 孙龙. 火干扰对森林土壤氮素循环与转化的影响研究进展 [J]. 生态学杂志, 2024, 43(2): 372-382.
[2]	高蝶, 陈赛男, 李思亮, 刘小龙, 李军, 白莉, 杨静, 王中良. 峡谷型水库温度分层期关键界面N₂O的产生和释放机理 [J]. 生态学杂志, 2020, 39(8): 2737-2747.
[3]	董鑫媛,郭庆军,魏荣菲,陶正华,田丽艳. 大气硝酸盐氧同位素异常及应用进展 [J]. 生态学杂志, 2020, 39(3): 1022-1032.
[4]	汤文广,周璋,林明献,李意德,骆土寿,陈德祥. 热带森林土壤气态氮损失及其对水分添加的响应 [J]. 生态学杂志, 2018, 37(11): 3231-3236.
[5]	车荣晓1, 2,邓永翠3,吴伊波4,张静1,王芳1,唐立1,2,李林峰1,马双1,刘瀚科1,赵星1,王艳芬1,郝彦宾1,崔骁勇1*. 生物固氮与有效氮的关系：从分子到群落 [J]. 生态学杂志, 2017, 36(1): 224-232.
[6]	张亚亚1,2,李军1*,郭颖1,2,牛颖权1,2,王艺涵1,2,周雯雯1,2. 土壤可溶性有机氮的研究进展 [J]. 生态学杂志, 2016, 35(6): 1661-1669.
[7]	叶莉莎,陈双林*,郭子武. 覆盖措施对雷竹林地土壤硝化和反硝化作用的影响 [J]. 生态学杂志, 2016, 35(4): 966-971.
[8]	全权1,2,张震1**,何念鹏2,苏宏新3,温学发2,孙晓敏2. 短期氮添加对东灵山三种森林土壤呼吸的影响 [J]. 生态学杂志, 2015, 34(3): 797-804.
[9]	梁雷,刘峰,何丽,张建丽,庄晓虹,汤淳. 浑河上游不同类型农户氮负荷特征 [J]. 生态学杂志, 2011, 30(10): 2315-2322.
[10]	张慧,袁红朝,朱亦君,陈春兰,谭周进,秦红灵. 不同利用方式对红壤坡地微生物多样性和硝化势的影响 [J]. 生态学杂志, 2011, 30(06): 1169-1176.
[11]	谢腾芳;薛立;王相娥. 土壤-植物-大气连续体系中氮的研究进展 [J]. 生态学杂志, 2009, 28(10): 2107-2116.
[12]	吴建国;吕佳佳 . 土壤有机碳和氮分解对温度变化的响应机制 [J]. 生态学杂志, 2008, 27(09): 1601-1611 .
[13]	刘艳, 周国逸, 刘菊秀. 陆地生态系统可溶性有机氮研究进展 [J]. 生态学杂志, 2005, (5): 573-577.