干旱区生态环境知识资源中心(Arid): 黄土高原半干旱区植被重建对不同坡位土壤肥力质量的影响

Arid

	黄土高原半干旱区植被重建对不同坡位土壤肥力质量的影响
其他题名	Effect of Vegetation Recovery on the Soil Fertility Quality of Different Slope Position in Semi-arid Region of Loess Plateau
	曹靖; 常雅君; 苗晶晶; 祁世坪
ISSN	1003-7578
出版年	2009
卷号	23 期号:1 页码:169-173
中文摘要	对黄土高原半干旱山地植被重建后不同坡位土壤肥力质量的变化和空间分布特征进行了研究.结果表明:随着人工植被的建立与恢复,有效提高了土壤持水量;不同坡位土壤pH值及全盐含量与荒山相比明显降低,而土壤肥力显著提高,尤其土壤全氮和速效磷含量增加幅度较大;在坡面位置中,上坡位土壤养分含量与下坡位相比普遍要高,而对于荒山则是下坡位的普遍高于上坡位.从坡顶到坡脚表层土壤的全盐含量依次增加,下坡位全盐含量明显高于其它坡位.土壤脲酶活性随着植被重建增加幅度较大,但各坡位间差异不十分明显;表层土壤过氧化氢酶活性对于植被的重建响应不明显,而20-40cm土层的过氧化氢酶活性却显著提高.坡面土壤肥力质量的变化是土地利用方式、植被类型与景观位置分异综合作用的结果,植被恢复和建设对提高该区土壤肥力质量具有重要的作用.
英文摘要	The soil quality change and spatial distribution of soil fertility in different slope position after the vegetation recovery in semi-arid region of Loess Plateau were discussed. The results showed that water holding capacity was effectively improved with the vegetation recovery, whereas soil pH and the content of total salt obviously decreased compared to bare hill,but soil fertility obviously improved, especially the content of soil total N and available P had a large increase. The upper slope had better soil fertility quality than lower slope, whereas opposite on the bare hill. The total salt content in soil gradually increased from upper slope to lower slope. The activity of soil urease increased with the vegetation rebuild, but there was no significant difference among three landscape positions (top slope, middle slope, foot slope). Soil catalase activity in top soil showed no obvious increase, but increase significantly in 20-40cm soil layers after the vegetation recovery. The results showed that soil fertility quality on slope largely depended on the styles of land utilization, vegetation types and landscape position. Vegetation restoration and construction played an important rote in improving soil environment quality in this region.
中文关键词	黄土高原半干旱区 ; 植被重建 ; 土壤肥力质量 ; 不同坡位
英文关键词	semi-arid region of Loess Plateau vegetation construction soil fertility quality slope position
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:3560223
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223646
作者单位	兰州大学生命科学学院, 干旱与草地生态教育部重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	曹靖,常雅君,苗晶晶,等. 黄土高原半干旱区植被重建对不同坡位土壤肥力质量的影响[J]. 兰州大学,2009,23(1):169-173.
APA	曹靖,常雅君,苗晶晶,&祁世坪.(2009).黄土高原半干旱区植被重建对不同坡位土壤肥力质量的影响.,23(1),169-173.
MLA	曹靖,et al."黄土高原半干旱区植被重建对不同坡位土壤肥力质量的影响".23.1(2009):169-173.