[1]张宝成,杨春秀,王 静.两种楤木根际土壤碳特征及酶活性[J].水土保持研究,2021,28(03):83-87.
　ZHANG Baocheng,YANG Chunxiu,WANG Jing.Characteristics of Carbon and Enzyme Activity of Rhizosphere Soil of Two Aralia Arborescens[J].Research of Soil and Water Conservation,2021,28(03):83-87.
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两种楤木根际土壤碳特征及酶活性

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 28 期数: 2021年03期 页码: 83-87 栏目: 出版日期: 2021-04-20
Title:
Characteristics of Carbon and Enzyme Activity of Rhizosphere Soil of Two Aralia Arborescens
文章编号:
1005-3409(2021)03-0083-05
作者:
张宝成1,2, 杨春秀3, 王 静4
(1遵义师范学院生物与农业科技学院, 贵州 遵义 563000; 2遵义师范学院山地生态研究所, 贵州 遵义 563000; 3贵州师范大学 生命科学学院, 贵阳 550000; 4江西农业大学 农学院, 南昌330045)
Author(s):
ZHANG Baocheng1,2, YANG Chunxiu3, WANG Jing4
(1.School of Biology &Agricultural Science and Technology,Zunyi Normal College,Zunyi 563000,China;2.Institute of Mountain Ecology,Zunyi Normal College,Zunyi,Guizhou 563000,China;3.College of Life Sciences,Guizhou Normal University,Guiyang 550000,China;4.Agricultural College of Jiangxi Agricultural University,Nanchang 330045,China)
关键词:
土壤酶活性;  活性有机碳;  微生物呼吸;  微生物
Keywords:
soil enzyme activity;  labile organic carbon;  microbial respiration;  microorganism
分类号:
S718.5
文献标志码:
A
摘要:
为了研究经济作物对土壤根际土壤有机碳的影响,以喀斯特2种不同类型的楤木为对象研究了楤木对根际土壤碳、微生物碳和酶活性。结果表明:(1)楤木类型影响到根际土壤有机碳含量,与对照组相比小叶型楤木根际土壤有机碳含量最高,其次是大叶型楤木;(2)楤木类型影响到根际土壤脲酶、蔗糖酶和过氧化物酶活性。小叶型楤木根际土壤脲酶、蔗糖酶和过氧化物酶活性高于大叶型楤木根际土壤酶活性;(3)小叶型楤木根际土壤微生物呼吸最大,其次是大叶型楤木,对照组最低;(4)土壤微生物呼吸与土壤脲酶和细菌数量显著相关,相关系数分别为0.65,0.61; 土壤微生物呼吸随着土壤无机碳含量的增加呈负相关关系,相关系数为-0.67; 土壤有机碳含量与微生物呼吸呈现边缘显著(p=0.06)。由上可知,不同类型楤木影响到土壤根际碳含量。因此,今后在品种选育中可以把根际土壤碳增收作为参考指标,为低碳农业的发展提供科学依据。
Abstract:
In order to study the effects of cash crops on soil organic carbon in rhizosphere, two different types of alder were used to study their effects on soil carbon of rhizosphere. The results show that:(1)different types of Aralia affect the content of soil organic carbon in the rhizosphere; soil organic carbon in rhizosphere of Small-leaf type of alder was the highest, followed by big lea, it is the lowest the control group;(2)the type of alder affects the activities of urease, sucrase and peroxidase in the rhizosphere, activities of enzymes in the rhizosphere of the small leaf type of alder are higher than those in the large leaf type of alder;(3)the highest microbial respiration was found in soils of small-leaf alder, followed by large leaf alder, the microbial respiration of the control was the lowest;(4)soil microbial respiration is significantly related to soil urease and bacterial counts, and the correlation coefficients are 0.65 and 0.61, respectively; soil inorganic carbon content showed negative relation to soil microbial respiration, the correlation coefficient is -0.67; soil organic carbon content and microbial respiration presented marginal significance(p=0.06). These results indicate that the increase of soil carbon income in rhizosphere can be taken as a reference index in the future breeding, which can provide the scientific basis for the development of low-carbon agriculture.

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备注/Memo

收稿日期:2020-01-04 修回日期:2020-07-08
资助项目:国家自然科学基金(31660106); 遵义师范学院博士启动基金(遵师BS[2014]06,BS[2014]07号); 贵州省科技厅合作项目[黔科合LH字(2017)7063]; 贵州省科技厅项目(黔科合支撑[2018]2364)
第一作者:张宝成(1978—),男,陕西南郑人,博士,副教授,主要从事生态功能及资源生态方面的研究。E-mail:bczhang@fudan.edu.cn

更新日期/Last Update: 2021-04-20