공지
2024-1학기 도서관 프로그램 안내
원문복사 상호대차 이용안내
북 갤러리 독서프로그램(북며들기)안내
2024학년도 1학기 도서관 이용안내
해외 전자책 신청 안내
이전
다음
Close today
공지사항 닫기
DAU Library
Central Library
Dong-A University
LOGIN
Off-Campus Access
OFF
KO
Open the search box
Search"
Search
All
Library Catalog
eArticles
eJournals
Databases
e-Learning
e-Learning
INSPIRE
KOCW
Overseas OCW/MOOC List
eBooks
Collections
New Arrivals(Subject)
Popular Books
Recommendations
DAU Reading List
Book Gallery
Research book
Research Support
Journal Evaluation
Subject Guides
Plagiarism Prevention
Plagiarism Prevention
Research Ethics
References Management
Thesis Submission
Document Delivery Service/Interlibrary Loan
Document Delivery Service/Interlibrary Loan
Medicine, Nursing(Request_Journal)
Medicine, Nursing(Request_Thesis)
DDS/ILL – Request list
Library Instruction
Library Instruction Guide
Library Instruction Request
Group Instruction Request
Libaray Services
Use Using Materials
Borrow/Renew/Return
Inter-Campus Loan
Purchase Request
Closed Stack Request
Priority Cataloging Book Request
Missing Book Request
Facilities
Group Study Room
Group Study Room Request
Reading Room
Visit Other Libraries(Data)
Visit Other Libraries for Material Use
Visit Other Libraries Request(Data)
Request History (Material Use)
Visit Other Libraries(Reading Room)
Visit Other Libraries Guide(Reading Room)
Visit Other Libraries Request(Reading Room)
Request History (Reading Room)
User Guide
Undergraduates
Graduates students
Faculty/Staff
Special member
Etc.
Mobile Service
Mobile Web
Mobile Seat Allocation
Mobile ID Card
WiFi
Off-Campus Access
Find Services
About our Library
Overview
Overview
History
Status
Regulations
Organization/Staff
Library Hours
Floor Guide
Donations
How to Donate
List
Cyber Memorial Collection
Directions
Community
Notice
Notice(Datebases)
Q&A
Q&A
FAQ
Book Reviews
Best Reviews
Program Feedback
Forms
Error Inquiry
My Library
Borrow/Renew
Borrow/Renew
History
Inter-Campus Loan List
My Request List
Purchase Request
Closed Stack Request
Priority Cataloging Book Request
Missing Book Request
DDS – Request List
Group Study Room
Library Instruction
My Shelf
My Book Reviews
Personal Information
Profile
Notice
Quick Menu
My Shelf
Error Inquiry
메뉴 전체보기
eArticles
Home
>
Search
>
eArticles
>
검색결과 돌아가기
검색화면
Export
프린트
E-Mail
EndNote
RefWorks
요약정보
基于多源环境变量的渭-库绿洲土壤颗粒含量预测研究 / Prediction of Soil Particle Content in Wei-Ku Oasis Based on Multi-source Environmental Variables
Resource Type
Academic Journal
Authors
顾永昇
;
丁建丽
;
韩礼敬
;
李科
;
周倩
;
GU Yongsheng
;
DING Jianli
;
HAN Lijing
;
LI Ke
;
ZHOU Qian
Source
土壤 / Soils
. 55(2):426-432
Subject
土壤颗粒
高光谱
环境变量
机器学习
Language
Chinese
ISSN
0253-9829
Online Access
Find it @ DONGA
초록
本文以渭干河-库车河绿洲(简称渭-库绿洲)土壤颗粒为研究对象,采集了绿洲内 50 个典型表层(0~10 cm)土壤样本,通过相关软件,提取到遥感指数变量、地形和气候等环境变量,经过相关性分析确定环境变量和预测目标间的关系,使用 R 语言构建了预测土壤颗粒含量的随机森林(random forest,RF)模型和极端梯度提升(extreme gradient boosting,XGBoost)模型.研究结果表明:XGBoost模型的预测结果整体好于RF模型,其中相关系数介于 0.39~0.78;土壤pH、高程及衍生变量、光谱变换变量均是两个模型预测土壤颗粒含量的重要因子;将模型预测结果、实测数据和世界土壤数据库(HWSD)中的 3 种土壤颗粒数据作对比分析,结果表现出模型预测数据的误差小于HWSD与实测数据的误差.综上所述,通过筛选环境变量建立的XGBoost模型,是预测渭-库绿洲土壤颗粒含量的有效方法.
메일 발송
로그인후 이용해주세요.
이동하기
Full menu
Close full menu
Search
All
Library Catalog
eArticles
eJournals
Databases
e-Learning
e-Learning
INSPIRE
KOCW
Overseas OCW/MOOC List
eBooks
Collections
New Arrivals(Subject)
Popular Books
Recommendations
DAU Reading List
Book Gallery
Research book
Research Support
Journal Evaluation
Subject Guides
Plagiarism Prevention
Plagiarism Prevention
Research Ethics
References Management
Thesis Submission
Document Delivery Service/Interlibrary Loan
Document Delivery Service/Interlibrary Loan
Medicine, Nursing(Request_Journal)
Medicine, Nursing(Request_Thesis)
DDS/ILL – Request list
Library Instruction
Library Instruction Guide
Library Instruction Request
Group Instruction Request
Libaray Services
Use Using Materials
Borrow/Renew/Return
Inter-Campus Loan
Purchase Request
Closed Stack Request
Priority Cataloging Book Request
Missing Book Request
Facilities
Group Study Room
Group Study Room Request
Reading Room
Visit Other Libraries(Data)
Visit Other Libraries for Material Use
Visit Other Libraries Request(Data)
Request History (Material Use)
Visit Other Libraries(Reading Room)
Visit Other Libraries Guide(Reading Room)
Visit Other Libraries Request(Reading Room)
Request History (Reading Room)
User Guide
Undergraduates
Graduates students
Faculty/Staff
Special member
Etc.
Mobile Service
Mobile Web
Mobile Seat Allocation
Mobile ID Card
WiFi
Off-Campus Access
Find Services
About our Library
Overview
Overview
History
Status
Regulations
Organization/Staff
Library Hours
Floor Guide
Donations
How to Donate
List
Cyber Memorial Collection
Directions
Community
Notice
Notice(Datebases)
Q&A
Q&A
FAQ
Book Reviews
Best Reviews
Program Feedback
Forms
Error Inquiry
My Library
Borrow/Renew
Borrow/Renew
History
Inter-Campus Loan List
My Request List
Purchase Request
Closed Stack Request
Priority Cataloging Book Request
Missing Book Request
DDS – Request List
Group Study Room
Library Instruction
My Shelf
My Book Reviews
Personal Information
Profile
Notice