[1]罗君,周维,覃发超,等.元谋干热河谷冲沟区植被对微地形的响应[J].山地学报,2012,(05):535.
　LUO Jun,Zhou Wei,QIN Chaofa,et al.Response of Vegetation to Microtopography in the Gullied Area of Yuanmou Dryhot Valley[J].Mountain Research,2012,(05):535.
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元谋干热河谷冲沟区植被对微地形的响应()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2012年05期
页码:
535
栏目:
山地学报
出版日期:
2012-01-01

文章信息/Info

Title:
Response of Vegetation to Microtopography in the Gullied Area of Yuanmou Dryhot Valley
作者:
罗君;周维;覃发超;邓青春;罗明良;胥晓;刘刚才;张斌;李国鸿;
1. 西华师范大学，四川 南充637009；
2.中国科学院水利部成都山地灾害与环境研究所，四川 成都610041；
3.北京航天勘察设计研究院，北京102611
Author(s):
LUO Jun;  Zhou Wei;  QIN Chaofa;  DENG Qingchun;  LUO Mingliang;  XU Xiao;  LIU Gangcai; ZHANG Bin; LI Guohong
1. China West Normal University, Nanchong 637009, China;
2. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China;
3.The Geotechnical Iinstitute of Beijing Aerospace（GIBA）,Beijing 102611,China
关键词:
植被; 微地形; 响应; 元谋干热河谷; 生态恢复
Keywords:
vegetation;  microtopography;  response;  Yuanmou Dryhot Valley;  ecological restoration
分类号:
Q948.2,P935.1
文献标志码:
A
摘要:
微地形是影响植被分布格局及多样性的重要因素。在元谋干热河谷冲沟区采集了1 236组"土壤-坡度-坡向-植被盖度-物种多样性"数据,运用统计学方法研究了坡度和坡向这两个地形因子对干热河谷植被盖度及其多样性的影响。结果表明:在元谋干热河谷冲沟区,植被盖度呈现出随坡度增大而减小的趋势,变性土区域活跃性冲沟坡面上有无植被生长的临界坡度是50°,而燥红土区域稳定性冲沟的临界坡度为65°;受人类活动影响强烈的沟坡区植被生长的临界坡度是45°,影响较轻微的近自然状态沟坡区的临界坡度是65°;植被盖度分布和植被种类的优势方向同为东北向,平均盖度为40%,西北向为28%,西南为20%,东南为21%;植被种类东北...
Abstract:
Microtopography is an important factor affecting the distribution and diversity of vegetation, especially in the Yuanmou dryhot valley. By collecting 1 236 groups data of the soilslopeaspectvegetation coveragespecies diversity in the gullied area, combined with statistical methods to study the influence of the two topographic factorsslope and aspect functions on the diversity and vegetation coverage of dryhot valley. It is showed that in the dryhot valley gully area, vegetation coverage has a decreasing trend with an increase of slope. The critical slope gradient judging whether there exists the vegetation growth or the vertex soils regional activities to jump on the gully slope is 50°, while the critical slope gradient of the regional stability of dry red gullies is 65°; by the strong influence of human activities, the critical slope gradient of gully vegetation growth is 45°; the critical slope gradient of the gully area which is relatively minor impacted is 65°; the dominant direction of the vegetation cover distribution and vegetation types is northeast, with an average coverage of 40%, the northwest is 28%, Southwest 20%,Southeast 21%; the vegetation types average of northeast is 1.8, northwest 1.4, Southwest 1.0, southeast 0.5. Researching on the response of the dryhot valley vegetation to the gully microterrain environment in the typical site conditions could provides scientific guidance for the ecological restoration.

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备注/Memo

备注/Memo:
收稿日期(Received date)：2012-03-19；改回日期(Accepted) : 2012-04-17。
基金项目（Foundation item）：国家自然科学基金(41101348/D010701)；国家科技支撑计划项目(2006BAC01A11)。\[Supported by the National Natural Science Foundation of China(41101348/D010701) and National Science and Technology Supporting Program(2006BAC01A11).\]
作者简介（Biography）：罗君(1985-), 男, 四川省泸县人,硕士研究生, 主要研究方向为生物地理学。\[Luo Jun(1985-),male,born in Luzhou,Sichuan province,master candidate,research in Biogeography.\]E-mail:luojunxmx@126.com *
通讯作者(Corresponding author): 张 斌(1975-)，男，四川省南部县人，博士，教授，主要研究方向为生态恢复。\[Zhang Bin(1975-),male,Nanbu,Sichuan province.Ph D,professor,major Research in Ecological Restoration.\] E-mail: envgeo@163.com
更新日期/Last Update: 1900-01-01