干旱区生态环境知识资源中心(Arid): 沙地樟子松人工林土壤酶活性研究

Arid

	沙地樟子松人工林土壤酶活性研究
其他题名	Characteristics of soil enzyme activities of Pinus sylvestris var.mongolica plantations
	王学林; 高广磊; 丁国栋; 曹红雨
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2021
卷号	35 期号:1
中文摘要	为揭示毛乌素、科尔沁沙地樟子松人工林的土壤酶活性特征,测定两地各林龄(26a、33a、43a)樟子松人工林地的土壤酶活性、土壤理化指标,分析其相互关系及影响因子。结果表明:1)两地沙地樟子松林各林龄的土壤物理指标几乎无显著性差异(P >0.05),而有机质、全磷、硝氮含量均表现为33a >26a >43a,速效磷、速效钾含量均表现为43a >33a >26a。2)毛乌素沙地各林龄内HPA、IA均无显著性差异(P >0.05),43 a林内的UA显著高于26a、33a林地,科尔沁沙地43a、33a林内的HPA、IA、UA活性均显著高于CK水平(P <0.05),两地林内的NPA则无显著性差异(P >0.05)。土壤剖面来看,土壤酶与养分含量均随深度呈增加趋势。 3)土壤养分相关分析表明,HPA与有机质、氨氮呈极显著正相关(P <0.01),NPA、IA均与全磷呈极显著正相关(P <0.01),而UA则与所测指标均无显著性相关(P >0.05)。4)科尔沁沙地26a、33a、43a樟子松林的土壤酶指数均显著高于裸沙地(P >0.05),且同龄水平分别高出毛乌素沙地15.79%、78.13%、16.28%。综上分析,同龄水平科尔沁沙地樟子松人工林的区域土壤酶活性均高于毛乌素沙地,这说明亚湿润干旱区的自然条件可能更有利于土壤酶系统衍生。
英文摘要	To reveal the characteristics of soil enzyme activity of Pinus sylvestris var.mongolica plantations(PSMP)in Mu Us and Horqin sandy lands.PSMP at age of 26a,33a,and 43a were selected as the research objects,to analyze characteristics of soil catalase,invertase,urease and phosphatase activities and their relationship with soil nutrients.The results indicate that:(1)There are almost no significant differences in the soil physical indicators of the PSMP forest lands with different ages between the two places.The contents of organic matter,total phosphorus and nitro nitrogen are 33a >26a >43a,and the contents of quick-acting phosphorus,and quick-acting potassium are 43a >33a >26a.(2)There are no significant differences in HPA and IA among forest ages in Mu Us Sandy Land(P >0.05).The UA in 43a forest is significantly higher than that in 26a and 33a forests.The activities of HPA,IA and UA in 43a and 33a forests in Horqin Sandy Land are significantly higher than those in CK(P <0.05),but there is no significant difference in NPA between the two forests(P >0.05).From the cross section of soil,the contents of soil enzymes and nutrients increase with the depth.(3)Soil nutrient correlation analysis shows that HPA is positively correlated with organic matter and ammonia nitrogen(P <0.01).NPA and IA are positively correlated with total phosphorus(P <0.01).while UA is not significantly correlated with the measured indicators(P >0.05).(4)At the same age level,the soil enzyme indicators of 26a,33a and 43a of Camphor pine forest in Horqin sandy land are 15.79%,78.13% and 16.28% higher than those in Mu Us sandy land,respectively.According to the comprehensive analysis,the regional soil enzyme activities of PSMP at the same age in Horqin sandy land are higher than that in Mu Us sandy land,which indicates that the natural conditions in sub humid and arid areas may be more conducive to the derivation of soil enzyme system.
中文关键词	土壤酶活性 ; 土壤酶指数 ; 沙地樟子松 ; 不同气候区
英文关键词	soil enzyme activity soil enzyme index Pinus sylvestris var.mongolica different climatic region
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6924611
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/354296
作者单位	王学林, 北京林业大学水土保持学院;;宁夏盐池毛乌素沙地生态系统国家定位观测研究站, 水土保持国家林业与草原局重点实验室;;宁夏盐池毛乌素沙地生态系统国家定位观测研究站, ;;盐池, 北京;; 100083;;751500, 中国. 高广磊, 北京林业大学水土保持学院;;宁夏盐池毛乌素沙地生态系统国家定位观测研究站, 水土保持国家林业与草原局重点实验室;;宁夏盐池毛乌素沙地生态系统国家定位观测研究站, ;;盐池, 北京;; 100083;;751500, 中国. 丁国栋, 北京林业大学水土保持学院;;宁夏盐池毛乌素沙地生态系统国家定位观测研究站, 水土保持国家林业与草原局重点实验室;;宁夏盐池毛乌素沙地生态系统国家定位观测研究站, ;;盐池, 北京;; 100083;;751500, 中国. 曹红雨, 北京林业大学水土保持学院;;宁夏盐池毛乌素沙地生态系统国家定位观测研究站, 水土保持国家林业与草原局重点实验室;;宁夏盐池毛乌素沙地生态系统国家定位观测研究站, ;;盐池, 北京;; 100083;;751500, 中国.
推荐引用方式 GB/T 7714	王学林,高广磊,丁国栋,等. 沙地樟子松人工林土壤酶活性研究[J],2021,35(1).
APA	王学林,高广磊,丁国栋,&曹红雨.(2021).沙地樟子松人工林土壤酶活性研究.干旱区资源与环境,35(1).
MLA	王学林,et al."沙地樟子松人工林土壤酶活性研究".干旱区资源与环境 35.1(2021).