干旱区生态环境知识资源中心(Arid): 毛乌素沙地植被类型对生物结皮及其下伏土壤养分的影响

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	毛乌素沙地植被类型对生物结皮及其下伏土壤养分的影响
其他题名	Effects of Vegetation Types on Biocrusts and the Underlying Soil Nutrients in Mu Us Sandland
	董金伟 1; 李宜坪 2; 李新凯 3; 李炳垠 4; 郭琦 4; 卜崇峰 5
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2019
卷号	26 期号:2 页码:112-117
中文摘要	为了解旱区荒漠生物结皮的养分效应及其同植被灌丛间的关系,研究以毛乌素沙地广泛分布的苔藓、藻结皮为对象,选取4类典型植被样地,深入探讨了植被对生物结皮及其下伏土壤的养分分布的影响。结果表明:(1)沙蒿植被冠层下的藻结皮及其下伏土壤的全氮、全磷、有机质含量显著高于植被冠层间,沙柳、柠条群落则为植被冠层下的相应值显著低于植被冠层间(p<0.05)。(2)沙蒿、沙柳、柠条3种群落的生物结皮及下伏土壤养分含量均随土层加深逐渐降低,而草地则表现为510cm土层的土壤养分显著高于上层土壤;苔藓结皮的全氮、有机质表现为:柠条>草地>沙柳>沙蒿,苔藓结皮的全磷以及藻结皮的养分含量均表现为:草地>柠条>沙蒿>沙柳。(3)总体上,各类型植被下的苔藓及藻结皮均能够显著增加表层010cm土壤的养分含量,且苔藓结皮的养分富集作用优于藻结皮。
英文摘要	In order to understand the nutrient effect of desert soil biocrusts and its relationship with shrub vegetation, this study focused on moss and algal crusts widely distributing in the Mu Us Sandland.Typical plots of four types of vegetation were selected and the effects of vegetation types on the distribution of nutrients of biocrusts and underlying soil were discussed in detail.The results showed that:(1)nutrients in algae crusts and underlying soil under the canopy of Artemisia ordosica were higher than those between the canopy,the corresponding values under the canopy of the Salixand Caraganacommunities were significantly lower than those between the canopies of the vegetation types(p<0.05);(2)soil nutrients in biocrusts of Salix psammophila, Artemisia ordosica and Caraganagradually decreased as soil depth increased,it indicated that soil nutrients in 510 cm soil were significantly higher than that in upper soil in grassland;the distribution of total nitrogen and organic matter in moss crust decreased in the order:Caragana korshinskii>grassland> Salix>Artemisia,the total phosphorus content of mossy crust and the nutrient content of algae crust decreased in the order:grassland>Caragana>Artemisia annua>Salix;(3)moss and algae crusts of each vegetation could significantly increase the nutrient contents in the 010 cm soil layer,and the nutrient enrichment of moss crusts was better than those of algae crusts.
中文关键词	毛乌素沙地 ; 生物结皮 ; 植被类型 ; 养分特征
英文关键词	Mu Us Sandland biocrusts vegetation type soil nutrients
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:6463784
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239541
作者单位	1.北京中邦文旅科技发展有限公司;;中国科学院水利部水土保持研究所, ;;, ;;杨凌, 北京;;陕西 100083;;712100, 中国; 2.西北农林科技大学水利与建筑工程学院, 杨凌, 陕西 712100, 中国; 3.中国科学院水利部水土保持研究所;;中国科学院大学, ;;, 杨凌;;, 陕西;;北京 712100;;100049, 中国; 4.西北农林科技大学水土保持研究所, 杨凌, 陕西 712100, 中国; 5.中国科学院水利部水土保持研究所;;西北农林科技大学水土保持研究所, ;;, 杨凌;;杨凌, 陕西;;陕西 712100;;712100, 中国
推荐引用方式 GB/T 7714	董金伟,李宜坪,李新凯,等. 毛乌素沙地植被类型对生物结皮及其下伏土壤养分的影响[J]. 西北农林科技大学,2019,26(2):112-117.
APA	董金伟,李宜坪,李新凯,李炳垠,郭琦,&卜崇峰.(2019).毛乌素沙地植被类型对生物结皮及其下伏土壤养分的影响.水土保持研究,26(2),112-117.
MLA	董金伟,et al."毛乌素沙地植被类型对生物结皮及其下伏土壤养分的影响".水土保持研究 26.2(2019):112-117.