干旱区生态环境知识资源中心(Arid): 藻菌混合结皮对土壤水肥保持及玉米幼苗生长的影响

Arid

	藻菌混合结皮对土壤水肥保持及玉米幼苗生长的影响
其他题名	Effects of Cyanobacteria-bacteria Biological Crusts on Soil Moisture and Nutrient Conservation and Maize Seedling Growth
	陆贺港; 任梦楠; 黄海东
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2021
卷号	41 期号:4 页码:77-82
中文摘要	[目的]研究藻菌混合结皮对土壤水肥保持及玉米幼苗生长的影响,为土壤治理与改良策略提供理论依据。[方法]使用来自内蒙古翁牛特沙漠的2种产胞外多糖的细菌(Sphingomonas sp.D3-1和Massilia armeniaca sp.ZMN-3)和2种藻类(Cladophora aegagrophila D3-a和Nostoc sphaeroides0 D3-25)制备成藻菌混合剂后,喷洒至土壤表面,形成土壤结皮。研究藻菌混合结皮与土壤水肥保持、微生物数量及酶活性的关系,及其对玉米幼苗的影响。[结果]与对照相比,藻菌混合结皮明显延缓了土壤水分的流失速度,并使氮、磷和钾的平均淋失效率分别减少了76.9%,64.4%和47.8%,土壤中的细菌、真菌和放线菌数量分别增加了8.3,1.8和3.1倍,芽孢杆菌的数量下降了12.4%。另外,在玉米盆栽中,藻菌混合结皮使玉米幼苗的地上部鲜/干重、根部鲜/干重和地上/下部长度分别提升30.0%/55.6%,55.4%/38.5%和16.5%/18.0%,叶绿素含量增加15.0%。[结论]藻类与产胞外多糖的细菌共同形成的藻菌混合结皮,明显改善了土壤的水肥保持效果,可作为治理土壤的新途径加以推广。
英文摘要	[Objective] The effects of cyanobacteria-bacteria biological crusts on moisture and nutrient conservation and maize seedling growth were studied to provide a theoretical basis for soil treatment and improvement strategies. [Methods] Two species of bacteria (Sphingomonas sp. D3-1 and Mas silia armeniaca sp. ZMN-3) and two species of cyanobacteria (Cladophora aegagrophila D3-a and Nostoc sphaeroides D3-25) isolated from the Wengniute Desert of Inner Mongolia Region,were used to prepare biological crusts. The relationships between the cyanobacteria-bacteria biological crusts and soil moisture and nutrient conservation, soil microbial quantity and soil enzyme activity were explored,and the effect of biological crusts on maize seedling growth was studied. [Results] Compared with the control, the soil surface cyanobacteria-bacteria crust significantly declined the rate of soil moisture loss, and reduced the average leaching efficiency of nitrogen, phosphorus and potassium by 76.9%,64.4% and 47.8%,respectively, while increased the number of bacteria, fungi and actinomycetes in soil by 8.3 times,1.8 times and 3.1 times,respectively, and decreased the number of bacillus by 12.4%. Besides,in the corn plants,the cyanobacteria-bacteria crust increased the aboveground fresh/dry weight, root fresh/dry weight,and above/lower length of corn seedlings by 45%/57.8%, 54.6%/32.8% and 19.7%/14.5%, respectively, and the chlorophyll content increased by 5.7%. [Conclusion] The mixed soil biological crust formed by cyanobacteria and extracellular polysaccharide producing bacteria significantly improved the soil microbial and fertilizer conservation effect, which could provide a reference for developing a new way of soil management.
中文关键词	藻菌混合结皮 ; 水肥保持 ; 土壤微生物 ; 土壤酶 ; 玉米幼苗
英文关键词	cyanobacteria-bacteria crusts moisture and nutrient conservation soil microbial soil enzyme maize seedling
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:7049951
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377910
作者单位	陆贺港, 天津农学院农学与资源环境学院, 天津 300392, 中国.; 任梦楠, 天津农学院农学与资源环境学院, 天津 300392, 中国.; 黄海东, 天津农学院农学与资源环境学院, 天津 300392, 中国.
推荐引用方式 GB/T 7714	陆贺港,任梦楠,黄海东. 藻菌混合结皮对土壤水肥保持及玉米幼苗生长的影响[J],2021,41(4):77-82.
APA	陆贺港,任梦楠,&黄海东.(2021).藻菌混合结皮对土壤水肥保持及玉米幼苗生长的影响.水土保持通报,41(4),77-82.
MLA	陆贺港,et al."藻菌混合结皮对土壤水肥保持及玉米幼苗生长的影响".水土保持通报 41.4(2021):77-82.