[1]张志明,尹梅,孙振华,等.基于GIS的梅里雪山国家公园土壤侵蚀敏感性情景分析[J].山地学报,2011,(02):154.
 ZHANG Zhiming,YIN Mei,SUN Zhenhuan,et al.A GIS-based Soil Erosion Model for Assessment of Vegetation Scenarios in Meili Snow Mountain National Park, Yunnan, China[J].Mountain Research,2011,(02):154.
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基于GIS的梅里雪山国家公园土壤侵蚀敏感性情景分析()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2011年02期
页码:
154
栏目:
山地学报
出版日期:
2011-01-01

文章信息/Info

Title:
A GIS-based Soil Erosion Model for Assessment of Vegetation Scenarios in Meili Snow Mountain National Park, Yunnan, China
作者:
张志明;尹梅;孙振华;王文礼;欧晓昆;
1.云南大学生态学与地植物学研究所,云南 昆明 650091;
2.云南省农业科学院农业环境资源研究所,云南 昆明 650205
Author(s):
ZHANG ZhimingYIN MeiSUN ZhenhuanWANG WenliOU Xiaokun
1.Institute of Ecology and Geobotany, Yunnan University, Kunming 650091, Yunnan,China;
2.Agricultural Environment and Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming 650205, Yunnan,China
关键词:
GISDEM空间建模土壤侵蚀模型情景分析
Keywords:
GIS DEM spatial modeling soil erosion model scenario analysis
分类号:
S157
文献标志码:
A
摘要:
运用GIS-IDRISI软件,在其空间分析模块支持下,结合植被、土壤和DEM数据建立了一个土壤侵蚀功能模型,并在3种不同植被状况下(1.现有植被;2.植被遭受严重破坏;3.植被得以良好保护和恢复),利用此模型对梅里雪山国家公园的土壤侵蚀状况进行情景分析。结果表明:在梅里雪山国家公园内,土壤侵蚀极敏感和高度敏感区,主要分布于高海拔的高山区域和低海拔的澜沧江河谷区,而中度敏感、轻度敏感和不敏感区主要分布于中间海拔区域。研究区现有植被得到了当地藏族居民的较好保护,但如果该区域的植被受到严重破坏,如情景2所示,那么土壤侵蚀极敏感、高度敏感和中度敏感区面积将大量增加,相反,轻度敏感和不敏感区的面积将大量...
Abstract:
More and more researchers focus on the ecological services of vegetation. One of the most important ecological services of vegetation is soil and water conservation. In this study, a GIS-based soil erosion model was built by integrating vegetation map, soil map, and DEM data. This model was used to predict the soil erosion with three different vegetation scenarios. In scenario 1, the vegetation data is the current vegetation map. In scenario 2, we assume that the current vegetation was greatly degraded. Especially, all of the forest vegetation was deforested. In scenario 3, we assume that the current vegetation was protected very well, and no disturbance. Some degraded types restore into forest. The results show that the higher soil erosion areas occur on alpine areas and the lower areas along Lancang River. Much less soil erosion occurs on the middle range of altitude (from 2 500 m to 3 900 m) because most of the forest can be found in this area. The prediction result of scenario 3 is quite similar to the scenario 1. The reason is that the current vegetation is protected very well by local Tibetan people. However, the result of scenario 2 shows that if the degradation of vegetation increased the soil erosion would increase dramatically. Almost the whole area is in high hazard of soil erosion. Therefore, the most important objective of the Meili Snow Mountain National Park is to protect the vegetation and ecosystems.

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备注/Memo

备注/Memo:
收稿日期(Received date):2010-04-07;改回日期(Accepted) : 2010-10-21。
基金项目(Foundation item):国家自然科学
基金项目(40901097);云南省教育厅
基金项目资助(09C0009)。\[National Natural Science Foundation of China (40901097) and Foundation of Provincial Education, Yunnan Province (No. 09C0009).\]
作者简介(Biography):张志明(1976- ),男,讲师,从事植被生态学、景观生态学以及地理信息系统应用研究。\[Zhang Zhiming, master, lecturer, research interesting: vegetation ecology, landscape ecology, and application of GIS and RS.\] *通信作者:E-mail: xkou@ynu.edu.cn
更新日期/Last Update: 1900-01-01