[1]程曼,成毅,安韶山.宁南山区退耕对土壤微生物生物量和酶活性的影响[J].水土保持研究,2010,17(05):142-147.
　CHENG Man,CHENG Yi,AN Shao-shan.Effects of Cropland Conversion on Soil Microbial Biomass and Enzymatic Activities in the Loess Hilly Area of Ningxia[J].Research of Soil and Water Conservation,2010,17(05):142-147.
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宁南山区退耕对土壤微生物生物量和酶活性的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 17 期数: 2010年05期 页码: 142-147 栏目: 出版日期: 2010-10-20
Title:
Effects of Cropland Conversion on Soil Microbial Biomass and Enzymatic Activities in the Loess Hilly Area of Ningxia
作者:
程曼1, 成毅1, 安韶山1,2
1. 西北农林科技大学 资源环境学院, 陕西 杨陵 712100;
2. 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 杨陵 712100
Author(s):
CHENG Man1, CHENG Yi1, AN Shao-shan1,2
1. College of Resources and Environmental Sciences, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A & F University, Yangling, Shaanxi 712100, China
关键词:
植被恢复; 土壤养分; 微生物生物量; 酶活性
Keywords:
vegetation restoration; soil nutrient; soil microbial biomass; soil enzymatic activities
分类号:
S154.3
摘要:
在野外调查和室内实验分析的基础上，研究了宁夏黄土丘陵区农田退耕后不同植被恢复措施对土壤的微生物生物量碳、氮、磷和转化酶、碱性磷酸酶、过氧化氢酶和脲酶活性的影响。研究表明：农田退耕后通过不同的植被恢复措施，土壤的微生物生物量碳为农地的1.04～3.12倍；微生物生物量氮为农地偏高；微生物生物量磷则相对稳定，无显著差异；转化酶和碱性磷酸酶活性的提高主要表现在表层（0-5 cm土层）和5-20 cm土层，分别比农地高出1%～41%和1%～89%；过氧化氢酶活性变化幅度最小；土壤脲酶活性在表层提高的幅度最大，为农地的1.95倍。农田退耕后，通过不同的植被恢复措施，土壤的生物肥力有所提高。
Abstract:
Based on field investigation and analysis in lab, the effects of different vegetation restoration measures after cropland conversion in loess hilly area on soil microbial biomass carbon, nitrogen, phosphorus and invertase, alkaline phosphatase, catalase and urease activity were studied. The results show that: by different vegetation restoration measures, soil microbial biomass carbon were 1.04～3.12 times of cropland; soil microbial biomass nitrogen of cropland is higher; There is no significant differences were found in soil microbial biomass phosphorus; the improving of activities of invertase and alkaline phosphatase were mainly found in surface layer (0-5 cm soil layer) and 5-20 cm soil layer which were separately 1%～41% and 1%～89% higher than those of cropland; the change rate of catalase activity is the smallest; urease activity, which was in the largest increase in surface layer, is 1.95 times of cropland. After cropland conversion, different vegetation restoration measures improved soil biological fertility.

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备注/Memo

收稿日期:2010-7-1;改回日期:2006-2-28。
基金项目:国家自然科学基金项目（40971171，40701095）；“十一五”国家科技支撑计划重大项目（2006BCA01A07）；西北农林科技大学“青年学术骨干支持计划”
作者简介:程曼（1988- ），女，硕士生，研究方向为土壤微生物生态。E-mail：wodewo_121@163.com
通讯作者:安韶山（1972- ），男，博士，副研究员，主要研究方向为土壤生态学、流域生态与管理。E-mail：shan@ms.iswc.ac.cn

更新日期/Last Update: 1900-01-01