塔里木河下游河岸带胡杨疏林和柽柳灌丛空间分布数据集（2013）

塔里木河下游河岸带土地覆盖类型划分为（柽柳）灌丛、（胡杨林）疏林、草地、农田、沙地和水体六种类型。运用2013年6-7月的Landsat-8遥感影像（空间分辨率30m），在1024个训练样本（草地样本75、胡杨样本688、农田样本14、沙地样本164、柽柳样本317、水体样本66）数据基础上，进行监督分类，得到该区域土地覆盖类型空间分布数据。运用叶面积指数（LAI）实测数据和叶面积指数（LAI）-植被指数（VI）反演模型，得到胡杨疏林和柽柳灌丛叶面积指数（LAI）空间分布数据。在此基础上，计算出柽柳灌丛和胡杨疏林不同叶面积指数的占地面积和随河道距离变化数据。本数据集包括（1）监督分类的训练样本数据（.shp），（2）土地覆盖类型空间分布数据(.shp)，（3）胡杨疏林和柽柳灌丛LAI空间分布数据(.hdf)，（4）柽柳灌丛和胡杨疏林不同LAI的占地面积数据（.xlsx），（5）LAI随距河道距离的变化数据（.xlsx）。压缩后总数据量为7.06MB。该数据的分析研究成果发表在《植物生态学报》2015年39卷第11期上。

The land cover types in the riparian zone of the lower reaches of the Tarim River are divided into six categories: Tamarix shrub, sparse Populus euphratica forest, grassland, farmland, sandy land, and water body. Using Landsat-8 remote sensing imagery acquired from June to July 2013 (spatial resolution: 30 m), supervised classification was conducted based on 1024 training samples (75 grassland samples, 688 sparse Populus euphratica forest samples, 14 farmland samples, 164 sandy land samples, 317 Tamarix shrub samples, and 66 water body samples), and the spatial distribution data of land cover types in this region were obtained. Using field-measured Leaf Area Index (LAI) data and the LAI-Vegetation Index (VI) inversion model, the spatial distribution data of LAI for sparse Populus euphratica forest and Tamarix shrub were acquired. On this basis, the occupied areas of different LAI classes for Tamarix shrub and sparse Populus euphratica forest, as well as the data on the variation of LAI with distance to the river channel, were calculated. This dataset includes: (1) training sample data for supervised classification (.shp), (2) spatial distribution data of land cover types (.shp), (3) spatial distribution data of LAI for sparse Populus euphratica forest and Tamarix shrub (.hdf), (4) data on the occupied areas of different LAI classes for Tamarix shrub and sparse Populus euphratica forest (.xlsx), and (5) data on the variation of LAI with distance to the river channel (.xlsx). The total size of the compressed dataset is 7.06 MB. The analytical and research results based on this dataset were published in *Journal of Plant Ecology*, Volume 39, Issue 11, 2015.

搜集汇总

背景与挑战

背景概述

该数据集提供了2013年塔里木河下游河岸带胡杨疏林和柽柳灌丛的空间分布数据，基于Landsat-8影像和1024个样本数据生成，包含土地覆盖分类和叶面积指数（LAI）模型分析结果，数据分辨率为30米，适用于生物地理学和生态学研究。