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宁南山区典型草本植物茎叶分解对土壤酶活性 及微生物多样性的影响
李 鑫; 李娅芸; 安韶山; 曾全超
Source Publication应 用 生 态 学 报

象,分析了 3 种植物茎叶分解过程中土壤酶活性变化特征和分解后期微生物多样性特征,以
及土壤酶活性与初始土壤化学性质的关系.结果表明: 植物茎叶分解 480 d 后,各处理土壤酶
32.40和 1.99 mg·g
·24 h
,百里香处理土壤脲酶活性最高(2.66 mg·g
·24 h
处理土壤纤维素酶活性最高(1.42 mg·g
·72 h
相关.添加植物茎叶处理土壤细菌和真菌的 Ace 指数、Chao 指数和 Shannon 指数均显著大于
对照,Simpson 指数显著小于对照.植物茎叶的分解显著提高了土壤细菌和真菌的丰度及多样

Other Abstract

With the method of litter bags,the characteristics of soil enzyme activities,soil microbial
diversity at later stage of decomposition,and the relationships between soil enzyme activity and ini-
tial soil property were investigated in the process of stem and leaf decomposition of three typical
herbs,i.e.,Stipa bungeana,Artemisia sacrorum and Thymus mongolicus in the south Ningxia loess
hilly region,Northwest China. The results showed that soil enzyme activity increased under different
treatments after 480 d during stem and leaf decomposition. Soil sucrose activity (32.40 mg·g
24 h
) and alkaline phosphatase activity (1.99 mg·g
·24 h
) were the highest in S. bungeana
treatment. Soil urease activity (2.66 mg·g
·24 h
) was the highest in T. mongolicus treatment,
and soil cellulase activity (1.42 mg·g
·72 h
) was the highest in A. sacrorum treatment. Soil
cellulose activity at later stage of decomposition had significant positive correlation with initial mi-
crobial biomass carbon of soil. Soil cellulose activity at later stage of decomposition had significant
negative correlation with initial nitrate nitrogen content of soil. Ace index,Chao index and Shannon
index of soil bacteria and fungi in plant tissue addition treatments were higher than in the control.
However,Simpson index was opposed. The stem and leaf decomposition significantly promoted the
abundance and diversity of soil bacteria and fungi,accelerated the decomposition rate of stems and
leaves,and promoted the cycle and transformation of soil nutrients.

Keyword草本植物 土壤酶活性 微生物多样性
Indexed By中文核心期刊要目总览
Document Type期刊论文
Affiliation1.西北农林科技大学黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西杨凌 712100
2.西北农林科技大学资源环境学院, 陕西杨凌 712100
Recommended Citation
GB/T 7714
李 鑫,李娅芸,安韶山,等. 宁南山区典型草本植物茎叶分解对土壤酶活性 及微生物多样性的影响[J]. 应 用 生 态 学 报,2016,27(10):3182-3188.
APA 李 鑫,李娅芸,安韶山,&曾全超.(2016).宁南山区典型草本植物茎叶分解对土壤酶活性 及微生物多样性的影响.应 用 生 态 学 报,27(10),3182-3188.
MLA 李 鑫,et al."宁南山区典型草本植物茎叶分解对土壤酶活性 及微生物多样性的影响".应 用 生 态 学 报 27.10(2016):3182-3188.
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