干旱区生态环境知识资源中心(Arid): 植物沙障不同种植模式对川西北沙地的恢复效应

Arid

	植物沙障不同种植模式对川西北沙地的恢复效应
其他题名	Effect of different vegetation planting patterns in restoration of degraded sandy land in northwest Sichuan
	苟小林 1; 刘文辉 2; 陈有军 1; 周蓉 3; 周青平 4
来源期刊	草业学报
ISSN	1004-5759
出版年	2019
卷号	28 期号:6 页码:33-44
中文摘要	生物沙障被广泛地应用于沙化治理中,但是生物沙障不同种植模式下对沙化治理的相关研究较少,尤其是复合草本在高寒地区不同种植模式下的研究较为缺乏。为了明确混合草本沙障不同种植模式对高寒沙地治理效应,选择川西北沙地作为典型高寒半湿润沙地,利用燕麦、垂穗披碱草、中华羊茅作为混合草本沙障,自2014年利用行播、带播、撒播种植模式恢复高寒半湿润沙地4年,于2014年测定一年生燕麦生长状况,调查4年后地表植物群落盖度和多样性特征,并且测定土壤水分、容重、含水量、pH值、有机碳、全氮、全磷等指标,分析复合草本不同种植模式对高寒沙地恢复效应。研究结果表明:复合草本带播和撒播模式对高寒沙地恢复效果明显。一年生燕麦后期从生态系统中消失,多年生草本适应性良好。带播和撒播种植模式显著增加了地上植物盖度、物种多样性、生态优势度。带播和撒播模式也显著减小了土壤容重,增加了土壤含水量、有机碳、全氮、全磷等含量。在高寒沙化复合草本种植恢复过程中,建议将土壤容重、有机质、全氮作为衡量土壤性质变化的指标。综合地表植被和土壤理化性质变化,建议以混合草本带播和撒播种植模式作为高寒沙化治理的主要种植模式。
英文摘要	Establishment of vegetation for sand stabilization is a widely used technique in restoration of desertified land,and little research has been conducted into the effects of different planting patterns on restoration outcomes.In particular,few studies have examined different planting patterns for composite grass-sand barriers for restoration in alpine-cold desert regions.In this study,typical alpine sub-humid sandy land in the northwest of Sichuan was planted in 2014in three patterns(row planted,band planted,or scatter planted)with a mixture of three grasses:Avena sativa,Elymus nutans and Festuca sinensis.Data were collected in August 2014on the growth of A.sativa,and again in August,2017to check plant community,coverage,biodiversity and collect soil samples.Soil water content,bulk density,pH value,organic carbon,total nitrogen,total phosphate,ammonia nitrogen,nitrate nitrogen and available phosphate were determined by standard laboratory techniques. Results showed that band and scatter planting patterns had significant positive effects on restoration of sub-humid sandy land.The annual species A.sativa had disappeared from the ecosystem by 2017,and the two perennial grasses grown well.The band and scatter planting patterns showed significantly superior plant coverage, biodiversity and ecosystem development,together with decreased soil bulk density,but increased soil water content,organic carbon,total nitrogen,total phosphate and other benefits.For sub-humid alpine sandy land restoration using grass mixtures,we suggest soil bulk density,organic carbon and total nitrogen are useful indexes of soil improvement.Also we recommend use of grass mixtures in band or scatter planting patterns as a suitable technique for restoration of desertified alpine land,to both restore vegetation cover above ground,and improve soil properties below ground.
中文关键词	草本 ; 植物群落 ; 半湿润 ; 土壤特性
英文关键词	grasses vegetation community sub-humid soil property
语种	中文
国家	中国
收录类别	CSCD
WOS类目	CHEMISTRY ORGANIC
WOS研究方向	Chemistry
CSCD记录号	CSCD:6514826
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238979
作者单位	1.青海大学畜牧兽医科学院;;西南民族大学青藏高原研究院, 青海省青藏高原优良牧草种质资源利用重点实验室;;, 西宁;;成都, 青海;;四川 810016;;610041, 中国; 2.青海大学畜牧兽医科学院, 青海省青藏高原优良牧草种质资源利用重点实验室, 西宁, 青海 810016, 中国; 3.阿坝州茂县农业畜牧和水务局, 阿坝, 四川 623200, 中国; 4.西南民族大学青藏高原研究院, 成都, 四川 610041, 中国
推荐引用方式 GB/T 7714	苟小林,刘文辉,陈有军,等. 植物沙障不同种植模式对川西北沙地的恢复效应[J],2019,28(6):33-44.
APA	苟小林,刘文辉,陈有军,周蓉,&周青平.(2019).植物沙障不同种植模式对川西北沙地的恢复效应.草业学报,28(6),33-44.
MLA	苟小林,et al."植物沙障不同种植模式对川西北沙地的恢复效应".草业学报 28.6(2019):33-44.