干旱区生态环境知识资源中心(Arid): 岩溶石漠化区人工植被类型对土壤团聚体生态化学计量特征的影响

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	岩溶石漠化区人工植被类型对土壤团聚体生态化学计量特征的影响
其他题名	Effects of Artificial Vegetation Type on the Ecological Stoichiometric Characteristics of Soil Aggregates in Karst Rocky Desertification Areas
	吴丽芳; 王妍; 刘云根; 王紫泉; 杨波; 张叶飞
来源期刊	东北林业大学学报
ISSN	1000-5382
出版年	2021
卷号	49 期号:6 页码:1000-5382
中文摘要	围绕人工植被类型对土壤理化性质的影响,采集了4种人工植被类型(云南松+银木荷人工混交林、柏木+银木荷人工混交林、干香柏人工纯林、云南松人工纯林)恢复18 a的石漠化区土壤,探究不同植被类型土壤团聚体分布特征、碳氮磷质量分数及其生态化学计量特征,为科学构建岩溶石漠区生态恢复措施提供理论依据。结果显示:各人工植被类型土壤团聚体质量百分比从高到低为0.25~ 2.00 mm(41.69%)、>2.00 mm(33.91%)、<0.25 mm(24.40%)。4种人工植被类型土壤团聚体有机碳、全氮、全磷平均质量分数分别为16.32、1.16、0.30 g·kg~(-1),土壤碳、氮、磷质量分数由大到小均为干香柏人工纯林、柏木+银木荷人工混交林、云南松+银木荷人工混交林、云南松人工纯林。团聚体粒径、林型以及粒径与林型的交互作用均对土壤碳氮磷质量分数有显著影响,但对土壤w(C): w(N)无显著影响,粒径、林型对土壤w(C): w(P)、w(N): w(P)有显著影响。各粒径土壤团聚体碳氮磷质量分数主要集中于0.25~ 2.00 mm粒径,各粒径土壤团聚体碳、氮、磷比值差异不显著。相关性分析表明,土壤有机碳、全氮和全磷质量分数具有极显著正相关关系(P<0.01)。w(C): w(P)与有机碳、全氮质量分数呈显著正相关关系(P<0.05),w(N): w(P)与有机碳、全氮质量分数呈极显著正相关关系(P<0.01),说明氮素是该地区主要的限制营养元素。本研究表明团聚体粒径、林型均会影响土壤碳氮磷质量分数及其化学计量比,且干香柏人工纯林土壤碳氮磷质量分数显著高于其它人工植被类型,是该岩溶石漠化区较为适宜的人工林类型。
英文摘要	The experiment was conducted to study the effects of artificial vegetation types on soil physical and chemical properties,four artificial vegetation types(Yunnan pine+Silver schnabel artificial mixed forest,Cypress+Silver schima superba artificial mixed forest,Dried cedar artificial pure forest,and Yunnan pine artificial pure forest)were collected to restore the soil in the rocky desertification area for 18 a,for exploring the distribution characteristics of soil aggregates of different vegetation types and their ecological stoichiometric characteristics,and providing a theoretical basis for scientific construction of ecological restoration measures in karst desert area.The mass percentage of soil aggregates of various artificial vegetation types in descending order of 0.25-2.00 mm(41.69%),>2 mm(33.91%),and <0.25 mm(24.40%).The average content of total organic carbon,total nitrogen and total phosphorus in soil aggregates of the four types of artificial vegetation was 16.32,1.16 and 0.30 g·kg~(-1),respectively.Soil carbon,nitrogen and phosphorus content from large to small are dried cedar artificial pure forest,Cypress silver schima superba artificial mixed forest,Yunnan pine silver schnabel artificial mixed forest,and Yunnan pine artificial pure forest.The forest type of aggregate particle size and the interaction between grain size and forest type had significant influence on the content of carbon,nitrogen and phosphorus in soil,but not on the content of soil w(C): w(N),grain size forest type has significant influence on soil w(C): w(P),w(N): w(P).The contents of C,N and P in soil aggregates with different particle sizes were mainly concentrated in the particle sizes of 0.25-2.00 mm,while the differences of C,N and P ratios of soil aggregates with different particle sizes were not significant.Correlation analysis showed that soil organic carbon,total nitrogen and total phosphorus content had a significant positive correlation(P<0.01).w(C): w(P)was positively correlated with the total nitrogen content of organic carbon(P<0.05),there was a significant positive correlation between w(N): w(P)and total nitrogen content of organic carbon(P<0.01),indicating that nitrogen is the main limiting nutrient element in this region.This study shows that the aggregate grain size of the forest types will affect the soil carbon,nitrogen and phosphorus content and its stoichiometric ratio,and the soil carbon,nitrogen and phosphorus content of the pure forest of cedar is significantly higher than that of other artificial vegetation types,which is a more suitable type of artificial forest in this karst rocky desertification area.
中文关键词	土壤团聚体 ; 生态化学计量学 ; 植被类型 ; 石漠化
英文关键词	Soil aggregate Ecological stoichiometry Vegetation type Rocky Desertification
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Forestry
CSCD记录号	CSCD:7010631
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/365001
作者单位	吴丽芳, 西南林业大学, 昆明, 云南 650224, 中国.; 王妍, 西南林业大学, 昆明, 云南 650224, 中国.; 刘云根, 西南林业大学, 昆明, 云南 650224, 中国.; 王紫泉, 中国科学院南京土壤研究所.; 杨波, 西南林业大学, 云南省山地农村生态环境演变与污染治理重点实验室.; 张叶飞, 西南林业大学, 云南省山地农村生态环境演变与污染治理重点实验室.
推荐引用方式 GB/T 7714	吴丽芳,王妍,刘云根,等. 岩溶石漠化区人工植被类型对土壤团聚体生态化学计量特征的影响[J],2021,49(6):1000-5382.
APA	吴丽芳,王妍,刘云根,王紫泉,杨波,&张叶飞.(2021).岩溶石漠化区人工植被类型对土壤团聚体生态化学计量特征的影响.东北林业大学学报,49(6),1000-5382.
MLA	吴丽芳,et al."岩溶石漠化区人工植被类型对土壤团聚体生态化学计量特征的影响".东北林业大学学报 49.6(2021):1000-5382.