植物生态学报 ›› 2002, Vol. 26 ›› Issue (增刊): 30-39.

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神农架龙门河地区的植被制图及植被现状分析

田自强1, 陈玥2, 陈伟烈1, 胡东3   

  1. 1中国科学院植物研究所植被数量生态学重点实验室,北京 100093
    2央视国际网络国家地理频道,北京 100038
    3首都师范大学生物系,北京 100037
  • 发布日期:2015-03-09

VEGETATION MAPPING AND ANALYSIS AT LONGMENHE REGION, SHENNONGJIA, CHINA

TIAN Zi-Qiangl, CHEN Yue2, CHEN Wei-Liel, HU Dong3   

  1. 1 Laboratory of Quantitative Vegetation Ecology, the Chinese Academy of Sciences, Beijing 100093 , China; 2 National Geography Channel, CCTV, Beijing 100038, China; 3 Department of Biology, Capital Normal University, Beijing 100037, China
  • Published:2015-03-09

摘要:

依据龙门河地区所处位置的植被地理分布规律性,绘制了该地区1:50000 的植被复原图。并在野外调查、资料搜集的基础上,辅以全球定位系统(GPS)、GIS软件及TM影像数据,绘制了该地区1:50000 的植被类型图。结果表明:1)植被海拔分布由低至高依次为常绿阔叶林(海拔900 m 以下),硬叶常绿阔叶林(海拔900~1300 m)、常绿落叶阔叶混交林(海拔1300~1600 m)以及落叶阔叶林(海拔1600~2200 m)。2)龙门河地区林地面积4419.2 hm2,占该地区总面积的93.71%,共计8个植被型65个群系。其中常绿落叶阔叶混交林面积最大,为1674.09 hm2,占林地面积的37.88%。另外,果园(3种类型)和农田两种农业用地面积228.12 hm2,占总面积的4.84%。3)由植被复原图与现状植被类型图叠加分析可知,干扰后增加了针叶林、针阔混交林、灌丛、草地4 种植被类型,占龙门河地区总面积的34.6%。其中针阔混交林所占面积最大,996.79 hm2

Abstract:

 

Abstract In this paper, we presented a restorative vegetation map according to the geographic position of the region, the rules of vegetation distribution along an altitude gradient, and so on. In addition, texture feature images and ancillary data including the topographic map, the documentary data and the field sampling data were collected and used for improving classification.
     The result of vegetation mapping showed that the restorative vegetation are categorized evergreen broad-leaved forest (under 900 m), evergreen and deciduous broad-leaved mixed forest (from 900 to 1600 m) and deciduous broad-leaved forest (from 1600 to 2200 m) respectively; The total forest area of Longmenhe region is about 4419.2 hm2, occupying 93.71% of the total area. In the vegetation map, 65 formations under eight vegetation types were classified. Among these vegetation types, the evergreen and deciduous broad-leaved mixed forest covered the largest area. Its area was 1674.09 hm2, occupying 37.88% in terms of area. In addition, the area of both orchard and farmland covered 228.12 hm2, accounting for 4.84% of this region.

     From the overlaid restorative vegetation map with the formation map and further analysis, coniferous forest, coniferous and deciduous broad-leaved mixed forest, shrubbery and meadow appear in this region as a result of human disturbance. The area of four vegetation types is about 34.6% . Coniferous and deciduous broad-leaved mixed forest is the dominant type in this area.