干旱区生态环境知识资源中心(Arid): 新疆艾比湖地区沙尘天气的地表条件及土壤保持

Arid

	新疆艾比湖地区沙尘天气的地表条件及土壤保持
其他题名	Ground-Surface Conditions of Sand-Dust Event Occurrence and Soil Conservation in Aibi Lake Region of Xinjiang
	钱亦兵 1; 吴兆宁 2; 张立运 1; 玉素甫艾力 2
ISSN	1007-7588
出版年	2006
卷号	28 期号:5 页码:185-189
中文摘要	和参照区相比,减弱艾比湖地区地表抗风蚀能力,导致沙尘天气形成的不利因素首先是该区春季裸露的耕地和低覆盖度荒漠景观的分离度/破碎度较低.其次是较高的植被生态优势度、土壤中有机质含量和pH值,以及较差的土壤粒度分选性.而利于地表土壤稳定性的积极因素则是植被盖度、植物群落多样性及较粗的土壤质地.在查明艾比湖地区沙尘天气发生的地表条件基础上,可以通过生物的、物理和化学的方法使上述地表环境向抑制沙尘天气发生和保护土壤免遭风蚀的方向演替.通过人工种植草、木本植物和退耕还林还草,提高植被覆盖度.同时,注意增加植物群落的多样性.选用耐盐碱植物和先进的灌溉技术治理土壤的盐碱化,降低其pH值.掺沙改良粘重的土壤,减少沙尘源地.并按一定空间格局退耕还林还草和合理布置农田防护林网,对大面积耕地/低盖度荒漠进行充分分隔,以增加其离散程度,能有效防止土壤流失(风蚀).
英文摘要	Comparing with a contrast region, the factors of weakening the capability of erosion-resistance and causing the formation of sand-dust event in the Aibi Lake region are: firstly the separation or fragmentation of bare land-cultivated in spring season and deseit landscape with low vegetation cover is lower; secondly the higher ecological dominant degree of vegetation, pH values and organic matter contents in the soils, and the poorer soiling indices. The factors of strengthening the ground surface stability are mainly the high vegetation cover, more abundant plant community diversity and coarser soil texture. On the basis of identifying the ground surface conditions of sand-dust event occurrences, the biological, physical and chemical measures can be used to restrain sand-dust event occurrence and prevent soil from erosion. First, by applying organic fertilizer, pH value of resulting from high carbonate can be reduced. Secondly, while returning cultivated land to grassland and woodland and building shelter forest belts, parallel vegetation cover can be raised with an increase of the diversity of plant community. Thirdly, by selecting alkali-saline-tolerant plants and irrigation methods, the aims of harnessing salinization-alkalization and reducing pH of soil can be achieved. By mixing sand into heavy clay soil, the soil can be ameliorated thereby decreasing the source of sand-dust events. According to a certain spatial pattern, by returning cultivated land to grassland and woodland and rationally building shelter forest net of farmland, which can compart a wide cultivated land and desert land with low vegetation cover in order to increase its discrete degree in the chief wind direction and soil loss or erosion can efficiently be prevented.
中文关键词	沙尘天气 ; 地表条件 ; 土壤保持 ; 艾比湖地区
英文关键词	Sand-dust event Ground surface conditions Soil conservation Aibi Lake region
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:2431061
来源机构	中国科学院新疆生态与地理研究所 ; 新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220584
作者单位	1.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国; 2.新疆大学资源与环境科学学院, 乌鲁木齐, 新疆 830046, 中国
推荐引用方式 GB/T 7714	钱亦兵,吴兆宁,张立运,等. 新疆艾比湖地区沙尘天气的地表条件及土壤保持[J]. 中国科学院新疆生态与地理研究所, 新疆大学,2006,28(5):185-189.
APA	钱亦兵,吴兆宁,张立运,&玉素甫艾力.(2006).新疆艾比湖地区沙尘天气的地表条件及土壤保持.,28(5),185-189.
MLA	钱亦兵,et al."新疆艾比湖地区沙尘天气的地表条件及土壤保持".28.5(2006):185-189.