干旱区生态环境知识资源中心(Arid): 封育对草地植被功能群多样性及土壤养分特征的影响

Arid

	封育对草地植被功能群多样性及土壤养分特征的影响
其他题名	Effects of Enclosure years on Vegetation Functional Groups Diversity and Soil total Nutrients Characters of Sandy Desert Grassland
	杨静 1; 孙宗玖 2; 巴德木其其格 1; 马慧敏 1; 董乙强 1
来源期刊	中国草地学报
ISSN	1673-5021
出版年	2018
卷号	40 期号:4 页码:102-110
中文摘要	为探究不同封育年限下植被功能群、土壤养分及其化学计量学特征的变化规律,对封育0a(En0,对照)、3a(En3)、5a(En5)、8a(En8)的沙质荒漠草地植被功能群多样性、土壤有机碳(Soil organic carbon,SOC)、全碳(Total carbon,TC)、全氮(Total nitrogen,TN)、全磷(Total phosphorus,TP)、全钾(Total kalium,TK)及其化学计量学特征进行测定。结果表明:封育提高了沙质荒漠草地植物功能群Patrick指数(Pa)、Simpson指数(D)和Shannon-Wiener指数(H),对Pielou均匀度指数(Jsw)影响不显著。封育后0~50 cm土层TC含量增加,且0~5 cm显著增加,而5~30 cm土层SOC在En5处显著降低。封育后5~50 cm土层的TN显著降低,而TP、TK含量则呈"升-降"趋势,En3达到最高,显著高于En0。与En0比,0~5 cm土层En3土壤C∶N值增加显著,而En3处理0~50 cm土层N∶P值最低。沙质荒漠草地封育过程中,土壤TP、TN含量对土壤养分的恢复及植被多样性的维持具有重要指示作用。适时封育有利于沙质荒漠植被功能多样性及土壤养分的恢复。
英文摘要	The vegetation functional groups,soil total nutrients and stoichiometric characteristics in different enclosure years of sandy desert grassland,the diversity of function community,soil organic carbon,total carbon,total nitrogen,total phosphorus,total kalium and ecological stoichiometric characteristics under zero enclosure years(control),three enclosure years,five enclosure years and eight enclosure years were studied.The result showed that the function community Patrick evenness index,Simpson index and Shannon-Wiener index with increase enclosure years were improved,and Pielou evenness index was not significantly changed.The soil total carbon in 0~50 cm was increased and the soil total carbon in 0~5 cm increased significantly with increased enclosure years.Soil organic carbon content in the 5~30 cm layer was significantly decreased after five enclosure years.Total nitrogen in 5~50 cm layer was significantly decreased.Total phosphorus and total kalium were increased first and then decreased under the condition of fencing,reached the highest after three enclosure years.Compared with control group the ratio of soil organic carbon and total nitrogen in 0~5 cm layer were significantly increased.But the ratio of total nitrogen and total phosphorus in 0~50 cm layer reached the lowest after three enclosure years.The results showed that the soil total phosphorus and total nitrogen had a directive for the soil nutrients recover and vegetation diversity maintenance.Therefore,the suitable enclosure years is beneficial for the soil nutrients and vegetation recover of sandy desert grassland.
中文关键词	封育年限 ; 沙质荒漠 ; 功能群 ; 土壤 ; 碳氮磷 ; 生态化学计量学
英文关键词	Enclosure years Sandy desert Function community Soil Carbon nitrogen and phosphorus Ecological stoichiometric
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:6293161
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/2XILL650/238661
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, ;;新疆草地资源与生态自治区重点实验室, 乌鲁木齐;;乌鲁木齐, 新疆;;新疆 830052;;830052, 中国
推荐引用方式 GB/T 7714	杨静,孙宗玖,巴德木其其格,等. 封育对草地植被功能群多样性及土壤养分特征的影响[J]. 新疆农业大学,2018,40(4):102-110.
APA	杨静,孙宗玖,巴德木其其格,马慧敏,&董乙强.(2018).封育对草地植被功能群多样性及土壤养分特征的影响.中国草地学报,40(4),102-110.
MLA	杨静,et al."封育对草地植被功能群多样性及土壤养分特征的影响".中国草地学报 40.4(2018):102-110.