LBA-ECO CD-10 Forest Litter Data for km 67 Tower Site, Tapajos National Forest
简介
该数据集包含一个文本文件，报告了帕拉西部（圣塔伦）地区67公里原始森林塔点原始高地森林的凋落物类型和质量。该地点位于巴西中北部的塔帕若斯国家森林。测量时间跨度为2000年7月至2005年6月。
凋落物收集工作于 2000 年 7 月开始，使用 40 个圆形网状筛网陷阱（直径 0.43 米，面积 0.156 平方米）随机放置在 19.75 公顷的树木调查区域内（Rice 等人，2004）。大约每 14 天收集一次凋落物，进行分类，在 60 摄氏度的烘干机中烘干，然后称重。每个陷阱中的凋落物被分类为：(1) 树叶；(2) 果实和花朵；(3) 木材（直径<2厘米）和(4) 杂物。报告的数据值为对凋落物各组分进行40次质量测量的平均值和标准误差，以及总质量的平均值和标准误差，已转换为毫克/公顷/年的报告单位。
摘要
Data File Documentation:
Column = Description
ldate = collection date (yyyymmdd)
jd = julian date of collection (1 = 1/1/2000)
dT = delta-T, time since last collection (in days)
leaf = leaf litter mass (Mg/ha/yr)
leaf.se = standard error on leaf litter mass measurement
fruit = fruit litter mass (Mg/ha/yr)
fruit.se = standard error on fruit litter mass measurement
wood = woody litter mass (< 2 cm) (Mg/ha/yr)
wood.se = standard error on wood litter mass measurement
misc = misc other litter mass (Mg/ha/yr)
misc.se = standard error on misc other litter mass measurement
total = total all categories (Mg/ha/yr)
total.se = standard error on total litter mass measurement
Missing value code is "NA"
Values are comma separated
Sample Data Record:
All of the litter data are reported in lba_km67_litter_archive.txt
YYYYMMDD,cont.DOY,dT,leaf,leaf.se,fruit,fruit.se,wood,wood.se,misc,misc.se,total,total.se
20000714,196,14,6.58,0.7,0,NA,2.31,0.72,0.79,0.3,9.68,1.01
20000728,210,14,8.32,0.77,0.09,0.03,2.22,0.47,1.63,0.71,12.27,1.39
20000811,224,14,9.76,0.83,0.09,0.05,1.78,0.42,1.44,0.36,13.21,1.41
20000825,238,14,11.53,1.21,0.05,0.03,2.57,0.54,1.96,0.57,16.14,1.7
...
20050430,1947,14,5.6,0.46,0.67,0.2,1.88,0.35,0.44,0.08,9.5,1.1
20050514,1961,14,7.29,0.89,1.86,0.47,2.8,0.56,1.14,0.16,13.13,1.35
20050527,1974,13,8.77,0.72,1.77,0.42,2.93,0.6,1.73,0.46,15.23,1.5
20050611,1989,15,6.29,0.75,0.57,0.19,1.55,0.34,0.58,0.13,9.57,1.24
Site boundaries: (All latitude and longitude given in degrees and fractions)
Site (Region) Westernmost Longitude Easternmost Longitude Northernmost Latitude Southernmost Latitude Geodetic Datum
Para Western (Santarem)- km 67 Primary Forest Tower Site (Para Western(Santarem)) -54.959 -54.959 -2.857 -2.857 World Geodetic System, 1984(WGS-84)
代码
!pip install leafmap
!pip install pandas
!pip install folium
!pip install matplotlib
!pip install mapclassify
import pandas as pd
import leafmap
url = "https://github.com/opengeos/NASA-Earth-Data"
df = pd.read_csv(url, sep="\t")
df
leafmap.nasa_data_login()
results, gdf = leafmap.nasa_data_search(
short_name="CD10_Litter_Tapajos_862",
cloud_hosted=True,
bounding_box=(-55.21, -4.05, -54.91, -2.84),
temporal=("2000-07-14", "2005-06-11"),
count=-1, # use -1 to return all datasets
return_gdf=True,
)
gdf.explore()
leafmap.nasa_data_download(results[:5], out_dir="data")
引用
Rice, A.H., E. P. Hammond, S. R. Saleska, L. Hutyra, M. Palace, M. Keller, P. B. de Carmargo, K. Portilho, D. Marques and S. C. Wofsy. 2008. LBA-ECO CD-10 Forest Litter Data for km 67 Tower Site, Tapajos National Forest. Data set. Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A.
