XIONG Shi-yuan,XU Wen-nian,XIA Dong,et al.Effects of Soil Microbial Features on Vegetation-growing Concrete Gunning in Different Vegetative Restoration Patterns[J].Research of Soil and Water Conservation,2010,17(04):279-284.
不同植被恢复模式对植被混凝土基材微生物特征的影响研究
- Title:
- Effects of Soil Microbial Features on Vegetation-growing Concrete Gunning in Different Vegetative Restoration Patterns
- Keywords:
- vegetation-growing concrete gunning; substrate; vegetative restoration pattern; soil microbial biomass; soil fertility
- 分类号:
- S158.3;S154.3
- 摘要:
- 为了解植被混凝土生态修复对土壤微生物特征的影响，测定了狗牙根、高羊茅、紫花苜蓿等几种不同植被恢复模式下土壤物理化学生物特征。结果表明：植被恢复后，土壤有机质，全氮、速效氮、微生物量碳氮升高。不同植被恢复模式对土壤改善作用不同，对有机碳、微生物量碳改善作用大小顺序为高羊茅>狗牙根>紫花苜蓿，对全氮、速效氮、微生物量氮改善作用大小依次为紫花苜蓿>高羊茅>狗牙根。植被混凝土恢复后，土壤呼吸强度升高而土壤微生物代谢熵降低。相关性分析表明微生物量碳、氮与土壤呼吸强度、土壤养分相关性密切，显然土壤微生物可以作为评价基材质量的生物学指标。
- Abstract:
- In order to find the effect of the soil microbial features under vegetation-growing concrete gunning,the soil microbial biomass and nutrient level of several vegetative restoration patterns including Cynodon dactylon,Festuca arundinacea Medicago sativa were measured.The results showed as the follows: soil organic matter,total nitrogen,available nitrogen and microbial biomass increase after vegetation restoration.Varrious types of vegetation restoration are different in improving soil properties.Generally,the soil organic matter contents and microbial biomass carbon under the different vegetative restoration patterns from followed the order of Festuca arundinacea>Cynodon dactylon>Medicago sativa,but the total nitrogen,available nitrogen,and microbial biomass nitrogen under the different vegetative restoration patterns followed the order of Medicago sativa>Festuca arundinacea>Cynodon dactylon. After vegetation-growing concrete gunning,the intensity of soil respiration increased,while metabolic quotient decreased.The signorificant relationships observed were between SMBC,SMBN,the intensity of soil respiration and physiochemical properties of soil.It is shown that microbial biomass can be used as an indicator of substrate quality.
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备注/Memo
收稿日期:2010-3-10;
基金项目:国家自然科学基金项目（50879043）;国家科技支撑计划项目（2006BAC10B04）
作者简介:熊诗源（1985- ），男，湖北汉川市人，硕士研究生，从事生态恢复技术研究。E-mail：xiongshiyuan@163.com
通讯作者:许文年（1960- ），男，河北元氏人，博士，教授，主要从事生态防护工程技术研究。E-mail：xwn@ctgu.edu.cn