%0 Journal Article
%T 不同植被对桂西北岩溶地区土壤微生物多样性的影响<br>Effects of Different Vegetation on Soil Microbial Diversity in Karst Area of Northwest Guangxi
%A 黄必乐
%A 邓慧莲
%A 解文惠
%A 杨晶晶
%A 钟其璇
%A 覃勇荣
%J Hans Journal of Agricultural Sciences
%P 658-677
%@ 2164-5523
%D 2021
%I Hans Publishing
%R 10.12677/HJAS.2021.117090
%X <div style=\"text-align:justify;\">
	<span style=\"font-size:14px;\">为研究不同植被对桂西北岩溶地区土壤微生物多样性的影响，选取了桂西北岩溶地区乡土树种枫香、青檀、任豆、柏木为优势种的植被，以及外来树种桉树、湿地松为优势种的植被作为研究对象，利用常规化学分析与分子微生物相结合的研究方法，分析不同植被对土壤肥力及土壤微生物多样性的影响。结果表明：长期种植外来树种会使土壤理化性质恶化，影响土壤微生物的群落结构和物种多样性，乡土树种样地的土壤优势菌为变形菌门，外来树种样地的土壤优势菌为酸杆菌门；以乡土树种为优势种的样地，其土壤肥力、土壤微生物多样性均高于外来树种。综合考虑不同树种对岩溶地区土壤养分和土壤微生物群落结构的影响，可以将任豆、柏木、青檀等乡土树种作为桂西北岩溶地区植被恢复和石漠化治理的优良先锋树种。<br />
In order to study the influence of different vegetation on the soil microbial diversity in the karst areas of northwest Guangxi, the vegetation with dominant species of native tree species <i>Liquidambar formosana</i>, <i>Pteroceltis tatarinowii</i>, <i>Zenia insignis</i>, and <i>Cupressus funebris</i> in karst areas of northwestern Guangxi, and vegetation with dominant species of <i>Eucalyptus robusta</i> and <i>Pinus elliottii</i> were selected as the research objects. Research methods combining conventional chemical analysis and molecular microbes are used to analyze the effects of different vegetation on soil fertility and soil microbial diversity. The results show that longterm planting of exotic tree species will deteriorate the physical and chemical properties of the soil and affect the community structure and species diversity of soil microorganisms. The dominant soil bacteria in the native tree species plot is the Proteobacteria, and the soil dominant bacteria in the exotic tree species plot is the Acidobacteria; The sample plot with native tree species as the dominant species has higher soil fertility and soil microbial diversity than exotic tree species. Considering the effects of different tree species on soil nutrients and soil microbial community structure in karst areas, native tree species such as <i>Zenia insignis</i>, <i>Cupressus funebris</i>, and <i>Pteroceltis tatarinowii</i> can be used as excellent pioneer trees for vegetation restoration and karst rocky desertification control in karst areas in Northwest Guangxi.</span> 
</div>
%K 桂西北岩溶地区，乡土树种，外来树种，土壤肥力，土壤微生物多样性<br>Karst Area in Northwest Guangxi
%K Native Tree Species
%K Exotic Tree Species
%K Soil Fertility
%K Soil Microbial Diversity
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=44124