干旱区生态环境知识资源中心(Arid): 封育年限对蒿类荒漠土壤有机碳组分及其碳、氮特征的影响

Arid

	封育年限对蒿类荒漠土壤有机碳组分及其碳、氮特征的影响
其他题名	Effects of enclosure period on carbon and nitrogen characteristics and components of soil organic carbon in Artemisiadesert
	杨静 1; 孙宗玖 2; 杨合龙 1; 董乙强 1
来源期刊	草业科学
ISSN	1001-0629
出版年	2016
卷号	33 期号:4 页码:564-572
中文摘要	为探明封育条件下草地土壤有机碳组分的响应规律,研究了不同封育年限(0、1、6、9年)对伊犁绢蒿(Seriphidium transiliense)荒漠土壤颗粒碳(POC)、颗粒氮(PON)、轻组碳(LFOC)、轻组氮(LFON)、微生物生物量碳(MBC)、微生物生物量氮(MBN)的影响。结果表明,伊犁绢蒿荒漠0-5、5-10cm土层POC、PON、LFOC、LFON含量均随封育年限的增加呈先下降再上升趋势,封育6年最低,且仅0-5cm土层显著低于对照和封育9年处理(P<0.05);除封育6年10-20、30-50cm土层LFOC及30-50cm土层LFON显著低于封育1年外,10-50cm土层各封育处理间POC、PON、LFOC、LFON均差异不显著(P>0.05);0-30cm土层MBC、MBN含量随封育年限增加基本呈先降再升趋势,封育1年最低,且除5-10cm土层MBC外,均显著低于封育9年处理;POC、PON、LFOC、LFON、MBC、MBN间呈显著正相关(P<0.05),且PON能够较好地反映土壤质量变化。总之,0-5cm土层土壤有机碳组分碳、氮含量对封育的响应较为敏感,且土壤MBC、MBN较POC、PON、LFOC、LFON在土壤中的反应更为迅速。
英文摘要	In order to explore the response of soil organic carbon components to enclosure in rangeland,the soil particulate organic carbon(POC),particulate organic nitrogen(PON),light fraction organic carbon(LFOC), light fraction organic nitrogen (LFON),microbial biomass carbon (MBC)and microbial biomass nitrogen (MBN)of Seriphidium transiliense desert after different enclosure years(including 0year,1years,6years and 9years)were studied.The results showed that the POC,PON,LFOC and LFON contents in soil layer of 0- 5and 5-10cm in S.transiliense desert firstly decreased then increased with the increase of enclosure years which reached minimum after 6-year enclosure.Only POC,PON,LFOC and LFON contents in 0-5cm soil layer after 6-year enclosure were significantly lower than those of the control(0year)and after 9year enclosure. Except with that LFOC contents in 10-20cm,30-50cm soil layers and LFON content in 30-50cm soil layer after 6-year enclosure were significantly lower than those after 1year enclosure,there was no signifi cantly difference between different enclosure years for POC,PON,LFOC,LFON contents in 10-50cm soil. The MBC and MBN contents in 0-30cm soil firstly decreased then increased with the increase of enclosure years which reached minimum after 1year enclosure.Except with MBC content in 5-10cm soil layers,all other indices were significantly lower than those after 9years enclosure.There was significantly positive correlation among POC,PON,LFOC,LFON,MBC and MBN,especially PON could more accurately reflect the soil quality changes.In conclusion,carbon and nitrogen content of soil organic carbon components in 0-5cm soil were more sensitive to enclosure and the soil microbial biomass carbon and nitrogen response more quickly.
中文关键词	围栏年限 ; 蒿类荒漠 ; 颗粒有机质 ; 轻组有机质 ; 土壤微生物生物量
英文关键词	enclosure year Artemisia desert particulate organic matter light organic matter soil microbial biomass
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5705002
来源机构	新疆农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233971
作者单位	1.新疆农业大学草业与环境科学学院, 乌鲁木齐, 新疆 830052, 中国; 2.新疆农业大学草业与环境科学学院, 新疆草地资源与生态自治区重点实验室, 乌鲁木齐, 新疆 830052, 中国
推荐引用方式 GB/T 7714	杨静,孙宗玖,杨合龙,等. 封育年限对蒿类荒漠土壤有机碳组分及其碳、氮特征的影响[J]. 新疆农业大学,2016,33(4):564-572.
APA	杨静,孙宗玖,杨合龙,&董乙强.(2016).封育年限对蒿类荒漠土壤有机碳组分及其碳、氮特征的影响.草业科学,33(4),564-572.
MLA	杨静,et al."封育年限对蒿类荒漠土壤有机碳组分及其碳、氮特征的影响".草业科学 33.4(2016):564-572.