西北内陆干旱区河流绿色走廊湿地景观格局变化及其生态效应研究—以车尔臣河下游为例
朱刚,高会军,曾光,金谋顺
中煤航测遥感局遥感应用研究院,西安710054
Variation of Wetland Landscape Pattern and Its Ecological Effects in the Green Corridor of the Arid Inland in Northwest China:a Case Study of the Lower Reaches of the Qarqan River
ZHU Gang, GAO Hui-Jun, ZENG Guang, JIN Mou-Shun
Aerophotography and Remote Sensing of China Coal Shanxi, Xi’an 710054, China
摘要 应用“3S”技术,通过选取景观的多样性、优势度、破碎度和斑块形状等空间格局指数对车尔臣河下游绿色走廊1975~2007年近32 a
间湿地景观格局变化进行研究,并对景观格局变化产生的生态效应进行了分析。结果表明: 1975~2000年,湿地面积与斑块数量小幅度增大
; 2000~2007年,湿地面积与斑块数量大幅度减小,斑块平均面积与斑块密度持续减小,斑块形状趋于复杂,景观格局的多样性减小,优势
度与破碎化程度增大。在各湿地类型中,河流湿地面积变化幅度较小,湖泊湿地面积大幅度增大,沼泽湿地面积大幅度减小。
关键词 :
南沙群岛 ,
TM图像 ,
区域平差
Abstract :Using “3S” technology, the authors carried out research on the changes of the wetland landscape pattern of the
green corridor in the lower reaches of the Qarqan River based on the diversity index, dominance index, fragment index and
patch shaped index from 1975 to 2007. Some conclusions have been reached: the wetland area and patch amount increased a
little from 1975 to 2000 and decreased greatly from 2000 to 2007. In the past 32 years, the average area of the patch and
the patch density have been reduced continuously, and the patch shape turned to complex; the diversity of the landscape
pattern decreased, but the dominance and the fragmentation increased; in all the wetland types, the change range of the
river wetland area was small, the lake wetland area increased greatly, and the marsh wetland area decreased considerably.
The variation of the wetland landscape aggravated the sandy desertification and led to the reduction of biodiversity, but
it guaranteed agricultural water demands and ecological water demands, which would be favorable to the stability of the
Qarqan River green corridor ecosystem.
Key words :
Nansha Islands
TM Imagery
Adjustment
收稿日期: 2010-04-21
出版日期: 2010-11-13
基金资助: 中国地质调查局基础调查项目“全国区域地质环境遥感调查与监测”(编号: 1212010911089)。
通讯作者:
朱刚(1980-),男,工程师,主要从事环境遥感方面研究工作。
引用本文:
朱刚, 高会军, 曾光, 金谋顺. 西北内陆干旱区河流绿色走廊湿地景观格局变化及其生态效应研究—以车尔臣河下游为例[J]. 国土资源遥感, 2010, 22(s1): 219-223.
ZHU Gang, GAO Hui-Jun, ZENG Guang, JIN Mou-Shun.
Variation of Wetland Landscape Pattern and Its Ecological Effects in the Green Corridor of the Arid Inland in Northwest China:a Case Study of the Lower Reaches of the Qarqan River. REMOTE SENSING FOR LAND & RESOURCES, 2010, 22(s1): 219-223.
链接本文:
https://www.gtzyyg.com/CN/10.6046/gtzyyg.2010.s1.45
或
https://www.gtzyyg.com/CN/Y2010/V22/Is1/219
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