干旱区生态环境知识资源中心(Arid): 科尔沁沙地典型地区人工造林对沙漠化过程的影响

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	科尔沁沙地典型地区人工造林对沙漠化过程的影响
其他题名	Effect of Artificial Forestation on Desertification in Typical Area of Horqin Sandy Land
	常学礼; 蔡明玉; 张继平; 李健英
ISSN	1000-694X
出版年	2009
卷号	29 期号:4 页码:611-616
中文摘要	在3S技术的支持下,以奈曼旗1975年、1985年、1995年和2005年的遥感影像为信息源,分析了研究区近30 a人工造林对沙漠化过程的影响.结果表明,在持续的人工造林过程影响下,沙地面积呈现出持续减少的趋势,其中固定沙丘面积减少幅度尤为显著,面积净减量为39 545.77 hm~2;沙漠化程度指数呈现出线性减少的变化趋势,自1985年以来,减少幅度尤为明显,由1985年的0.21下降到2005年的0.03;土地沙漠化正、逆过程同时存在,但逆转趋势远大于发展趋势,土地沙漠化过程总体上正处于全面逆转期;斑块数和景观形状指数均呈现出先增后减的变化趋势,斑块形状经历简单-复杂-简单的变化过程.
英文摘要	The remote sensing images of Naiman Banner in year of 1975, 1985, 1995, 2005 were interpreted to disclose the desertification processes, and the effect of artificial afforestation on desertification was ana-lyzed based on 3S technologies. The results showed that the area of sandy land reduced obviously under the persistent process of artificial afforesting. The reducing extent of the fixed dune was significant, with net reducing amount of 39 545.77 hm~2. The desertification degree index reduced continually, especially since 1985; its value decreased from 0. 21 in 1985 to 0. 03 in 2005. There were positive and adverse desertifica-tion processes simultaneously, but desertification was generally in inversing process. The number of patches and landscape shape index presented similar changing trend as increased firstly and then reduced. The patch shape has generally experienced the developing processes of simple to complex and again to simple.
中文关键词	科尔沁沙地 ; 人工造林 ; 沙漠化
英文关键词	Horqin sandy land artificial forestation desertification
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:3757950
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224558
作者单位	鲁东大学,地理与规划学院, 烟台, 山东 264025, 中国
推荐引用方式 GB/T 7714	常学礼,蔡明玉,张继平,等. 科尔沁沙地典型地区人工造林对沙漠化过程的影响[J],2009,29(4):611-616.
APA	常学礼,蔡明玉,张继平,&李健英.(2009).科尔沁沙地典型地区人工造林对沙漠化过程的影响.,29(4),611-616.
MLA	常学礼,et al."科尔沁沙地典型地区人工造林对沙漠化过程的影响".29.4(2009):611-616.