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| 泥河沟流域农林复合生态系统景观格局变化研究 | |
| 引用本文： | 张博,吴发启,张正华. 泥河沟流域农林复合生态系统景观格局变化研究[J]. 西北林学院学报, 2006, 21(6): 5-8 |
| 作者姓名： | 张博 吴发启 张正华 |
| 作者单位： | 1. 西北农林科技大学,资源环境学院,陕西,杨陵,712100;西藏农牧学院,林学系,西藏,林芝,860000 2. 西北农林科技大学,资源环境学院,陕西,杨陵,712100 3. 山东省东营市水利局,山东,东营,257091 |
| 基金项目： | 中国科学院知识创新项目“农果复合型生态农业建设模式示范-2”(KZCX1-06-02-03) |
| 摘 要： | 以淳化县泥河沟流域为研究对象,利用该区1986年和2004年的土地利用现状图,在A rc/in fo和A rcveiw软件支持下,对该流域18 a来农林复合生态系统景观格局的变化进行了研究。结果表明,除水域不变外,林地、草地和未利用地面积均减少,其他用地面积有所增加,尤其是居民地企业及交通用地增幅最大,达47.48%;流域的斑块数量减少,斑块形状趋于复杂,多样性指数增加,景观的破碎程度加大,景观格局正朝多极化和破碎化方向发展。 |
| 关 键 词： | 泥河沟流域 农林复合生态系统 景观格局 斑块 |
| 文章编号： | 1001-7461（2006）06-0005-04 |
| 收稿时间： | 2006-04-28 |
| 修稿时间： | 2006-05-29 |
Landscape Pattern Variation of Agro-forestry Ecosystem in Nihegou Watershed |
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| ZHANG Bo,WU Fa-qi,ZHANG Zheng-hua. Landscape Pattern Variation of Agro-forestry Ecosystem in Nihegou Watershed[J]. Journal of Northwest Forestry University, 2006, 21(6): 5-8 | |
| Authors: | ZHANG Bo WU Fa-qi ZHANG Zheng-hua |
| Abstract: | Based on the land use map of 1986 and 2004,changes of the agro-forestry ecosystem landscape pattern in Nihegou watershed during the eighteen years were studied by Arcview and Arc/info software in the paper.The results showed that all other kinds of patches except water area changed obviously in area,number,figure etc.The areas of forest land,grassland and non-using land decreased,however,areas of all others increased,especially the residential land and road area increasd by 47.48%.During 18 years,the total number of patches decreased slightly,the shape of patches became more complex.Both diversity index and fragment index increased.The analysis indicated that the landscape pattern of agro-forestry ecosystem in this region was tending towards multipolar and fragmenting development. |
| Keywords: | Nihegou watershed agro-forestry ecosystem landscape pattern patch |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |