长江流域资源与环境 >> 2011, Vol. 20 >> Issue (11): 1361-.

• 生态环境 • 上一篇    下一篇

鄱阳湖湿地出露草洲分布特征的遥感研究

张方方 |齐述华 |廖富强 |张起明   

  1. (1.江西师范大学地理与环境学院|江西 南昌 330022;2.江西师范大学鄱阳湖湿地与流域研究教育部重点实验室|江西 南昌 330022
  • 出版日期:2011-11-22

ANALYSIS OF DISTRIBUTION FEATURES OF THE EMERSED GRASSLAND IN POYANG LAKE BASED ON REMOTE SENSING

ZHANG Fangfang1, QI Shuhua1,2, LIAO Fuqiang1, ZHANG Qiming1   

  1. (1.School of Geography and Environment,Jiangxi Normal University,Nanchang 330022,China;
    2.Key Lab of Poyang Lake Wetland and Watershed Research,Ministry of Education,Jiangxi Normal University,Nanchang 330022,China
  • Online:2011-11-22

摘要:

利用鄱阳湖区46景不同时相的Landsat MSS/TM/ETM+遥感影像,分别提取鄱阳湖的出露草洲范围,并假定只要一个时期是出露草洲就属于草洲,形成鄱阳湖湿地草洲潜在分布图,并分析鄱阳湖湿地出露草洲的分布特征。研究结果表明:(1)利用出露草洲面积与星子水文站观测水位得到二者的关系,表明出露草洲分布及范围受水位的影响显著,高水位时,大部分草洲被水淹没;低水位时,出露草洲面积大。此外,也受气象因素、草洲植物生长期的水位过程等因素影响;(2)出露草洲面积的季节变化明显:随水位的升高而减少,随水位的下降而增加;在植被生长期的春季和夏季,出露草洲面积逐渐减少,在秋季和冬季,出露草洲面积却逐渐增加;出露草洲面积最大在1月,最小在7月;(3)鄱阳湖潜在草洲的面积达2 441 km2,草洲可能出现的范围占整个鄱阳湖面积的69.5%

Abstract:

In this paper,Landsat MSS/TM/ETM+ images taken on 46 different dates were used to pick up the emersed grassland of Poyang Lake in 1983~2009.We suggested the emersed grassland which appeared in one date was the grassland,got the potential grassland map,and analyzed the distribution of the emersed grassland.The correlation between the emersed grassland and the water level indicated the distribution range was significantly affected by water level:high water level,the majority of grassland flooded;low water level,the majority of grassland exposed.Furthermore,it also was affected by meteorological factors,the water level change process and etc.The area of the emersed grassland had obvious seasonal change:in spring and summer when the vegetation grows,the area dropped off,but in autumn and winter,the area increased.The maximum area was in January,the minimum was in July.The total area of potential grassland reached 2 441 km2,mainly distributed in the west bank,accounted 695% of the whole lake.The distribution feature of the increasing in the emersed grassland area was from the lakeshore to the middle with the flood to the low water

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] 许晗之,汪院生,常本春,王腊春. 江苏太湖地区调水改善水环境研究[J]. 长江流域资源与环境, 2006, 15(Sup1): 92 -96 .
[2] 徐丽华,岳文泽,徐建华. 城市热场剖面的分形维数计算及其意义研究——以上海中心城区为例[J]. 长江流域资源与环境, 2007, 16(3): 384 .
[3] 冯 平,徐向广,李 海. 基于模糊集合分析的汛期分期方法及其应用[J]. 长江流域资源与环境, 2008, 17(3): 495 .
[4] 马荣华,杨桂山. 长江岸线与岛屿演化的空间分形研究——以江苏段为例[J]. 长江流域资源与环境, 2004, 13(6): 541 -545 .
[5] 李桂林,陈 杰. 城市边缘带土地利用特征与土壤资源压力[J]. 长江流域资源与环境, 2005, 14(5): 579 -583 .
[6] 周宏伟,朱继业,王腊春,窦贻俭. 水污染物排放总量控制方法研究——以无锡城北地区为例[J]. 长江流域资源与环境, 2004, 13(1): 60 -64 .
[7] 胡冰川,吴 强,周曙东. 粮食生产的投入产出影响因素分析——基于江苏省粮食生产的实证研究[J]. 长江流域资源与环境, 2006, 15(1): 71 -75 .
[8] 贾 丽, 沈玉芳. 我国生态工业园发展的SWOT分析[J]. 长江流域资源与环境, 2007, 16(6): 711 .
[9] 谢月玉, 王式功, 董安祥, 尚可政. 澳洲冷空气活动与长江中下游降水的联系分析[J]. 长江流域资源与环境, 2009, 18(7): 625 .
[10] 虞孝感, 王磊. 极化区功能识别与评价指标研究[J]. 长江流域资源与环境, 2011, 20(07): 775 .