Article(id=1251559137390309411, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1251559134307500754, articleNumber=null, orderNo=null, doi=10.3981/j.issn.1000-7857.2025.12.00118, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1758124800000, receivedDateStr=2025-09-18, revisedDate=1772640000000, revisedDateStr=2026-03-05, acceptedDate=null, acceptedDateStr=null, onlineDate=1776324551198, onlineDateStr=2026-04-16, pubDate=1774627200000, pubDateStr=2026-03-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1776324551198, onlineIssueDateStr=2026-04-16, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1776324551198, creator=13701087609, updateTime=1776324551198, updator=13701087609, issue=Issue{id=1251559134307500754, tenantId=1146029695717560320, journalId=1146031591421210625, year='2026', volume='44', issue='6', pageStart='1', pageEnd='112', issueExtLink='null', onlineDate='null', pubDate='1774627200000', pubDateStr='2026-03-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1776324550463, creator='13701087609', updateTime=1776332259412, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1251591468125733729, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1251559134307500754, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1251591468125733730, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1251559134307500754, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=35, endPage=47, ext={EN=ArticleExt(id=1251559138204004395, articleId=1251559137390309411, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Machine learning−driven intelligent evaluation application of grassland health, columnId=1150494642224591153, journalTitle=Science & Technology Review, columnName=Exclusive, runingTitle=null, highlight=null, articleAbstract=
Grassland health evaluation is a key technical means to measure the structure and function of grassland ecosystems and to support ecological security and sustainable resource utilization. However, traditional evaluation methods have limitations such as strong subjectivity and insufficient spatio−temporal continuity in index system construction and large−scale dynamic monitoring. This paper proposes an intelligent evaluation method for grassland health based on multi−source spatio−temporal data and machine learning, and constructs an intelligent research framework covering "data collection—feature extraction—index construction—health evaluation—management decision−making." By integrating field sampling data with multi−source remote sensing data, this method introduces expert knowledge to construct the Grassland Health Index (GHI) and utilizes machine learning models to achieve pixel−scale quantitative inversion and dynamic monitoring of long−term sequence grassland health conditions. To verify the effectiveness of this method, Ningxia, which has implemented region−wide grazing exclusion for nearly 20 years, was taken as a typical application scenario. The results show that the machine learning method significantly improved the accuracy of various evaluation indicators, with the R2 of spatial simulation for grass yield reaching 0.88. From 2012 to 2022, the grasslands in Ningxia were generally at a healthy level (GHI>80), remained stable overall, and the ecosystem showed a recovery trend. There was significant spatial heterogeneity in grassland health; due to differences in land use patterns and precipitation gradients in local areas, degradation risks still require continuous attention. The intelligent evaluation method proposed in this study has good operability and extensibility, providing technical support for grassland ecological health diagnosis, degradation risk early warning, and sustainable management in different regions, as well as providing a scientific basis for the optimization of grassland ecological subsidy policies and resource security decision−making.
, authors=null, authorsList=Bingshu ZHU, Jiangwen FAN, Yunbao FAN, Haiyan ZHANG, Hao WANG, Haijing TIAN, Lin WANG, authorCompany=null, correspAuthors=Haiyan ZHANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=
All rights reserved. Unauthorized reproduction is prohibited., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1251559142079541398, articleId=1251559137390309411, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=机器学习驱动的草原健康智能评估应用, columnId=1150494642375586098, journalTitle=科技导报, columnName=特色专题, runingTitle=null, highlight=null, articleAbstract=
草原健康评估是衡量草原生态系统结构与功能、支撑生态安全与资源可持续利用的关键技术手段。然而,传统评估方法在指标体系构建与大范围动态监测中存在主观性强、时空连续性不足等局限。提出一种基于多源时空数据与机器学习的草原健康智能评估方法,构建了涵盖“数据采集—特征提取—指标构建—健康评估—管理决策”的智能化研究框架。该方法融合野外采样数据与遥感多源数据,引入专家知识构建草原健康指数(grassland health index,GHI),并借助机器学习模型实现像元尺度的长时序草原健康状况定量反演与动态监测。为验证该方法的有效性,以全域实施禁牧封育近20年的宁夏回族自治区为典型应用场景开展为例,结果表明,机器学习方法显著提升了各评估指标精度,其中产草量空间化模拟R2达0.88。2012—2022年宁夏草原总体处于健康水平(GHI>80),整体保持稳定,生态系统呈恢复趋势;草原健康存在显著空间异质性,局部区域因土地利用方式和降水梯度差异,退化风险仍需持续关注。研究提出的智能评估方法具有良好的可操作性与可推广性,可为不同区域草原生态健康诊断、退化风险预警及可持续管理提供技术支撑,也为草原生态补奖政策优化与资源安全决策提供科学依据。
, authors=
朱炳淑,博士研究生,研究方向为草地生态学,电子信箱:zhubingshu4728@igsnrr.ac.cn
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版权所有,未经授权,不得转载。, copyrightOwner=《科技导报》编辑部, extLink=null, articleAbsUrl=null, sourceXml=OG6ahLNDXvxlKUFnbPgFSg==, magXml=+afqUvftFIAvTmSViN89aQ==, pdfUrl=null, pdf=LfN3jun+n0J0oU+Mnyl38g==, pdfFileSize=3878865, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=kHNKyW1wi9nwLqqKt3359A==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=Twpf5HJVHPdLRiQn/hVFoQ==, mapNumber=null, fund=null)}, authors=[Author(id=1251567859718107439, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=zhubingshu4728@igsnrr.ac.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1251567859814576436, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, authorId=1251567859718107439, language=EN, stringName=Bingshu ZHU, firstName=Bingshu, middleName=null, lastName=ZHU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
2University of Chinese Academy of Sciences, Beijing 100049, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1251567859898462519, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, authorId=1251567859718107439, language=CN, stringName=朱炳淑, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1中国科学院地理科学与资源研究所,北京 100101
2中国科学院大学,北京 100049, bio={"content":"
朱炳淑,博士研究生,研究方向为草地生态学,电子信箱:zhubingshu4728@igsnrr.ac.cn
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1Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1251567860213035333, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, authorId=1251567859978154299, language=CN, stringName=樊江文, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1中国科学院地理科学与资源研究所,北京 100101, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1251567859273511187, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, xref=1, ext=[AuthorCompanyExt(id=1251567859286094099, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, companyId=1251567859273511187, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1中国科学院地理科学与资源研究所,北京 100101)])]), Author(id=1251567860305310026, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1251567860418556240, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, authorId=1251567860305310026, language=EN, stringName=Yunbao FAN, firstName=Yunbao, middleName=null, lastName=FAN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3Academy of Forest and Grassland Inventory and Planning (Grassland Monitoring Center of National Forestry and Grassland Administration), Beijing 100714, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1251567860481470805, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, authorId=1251567860305310026, language=CN, stringName=范云豹, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3国家林业和草原局林草调查规划院(国家林业和草原局草原资源监测中心),北京 100714, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1251567859516780833, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, xref=3, ext=[AuthorCompanyExt(id=1251567859525169442, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, companyId=1251567859516780833, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3国家林业和草原局林草调查规划院(国家林业和草原局草原资源监测中心),北京 100714)])]), Author(id=1251567860640854363, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=zhanghaiyan@igsnrr.ac.cn, emailSecond=null, emailThird=null, correspondingAuthor=1, authorType=1, ext={EN=AuthorExt(id=1251567860783460704, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, authorId=1251567860640854363, language=EN, stringName=Haiyan ZHANG, firstName=Haiyan, middleName=null, lastName=ZHANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1251567860867346789, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, authorId=1251567860640854363, language=CN, stringName=张海燕, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1中国科学院地理科学与资源研究所,北京 100101, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1251567859273511187, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, xref=1, ext=[AuthorCompanyExt(id=1251567859286094099, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, companyId=1251567859273511187, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1中国科学院地理科学与资源研究所,北京 100101)])]), Author(id=1251567860980593001, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1251567862553457008, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, authorId=1251567860980593001, language=EN, stringName=Hao WANG, firstName=Hao, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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4Hulunbuir Forestry and Grassland Carbon Sink Technology Co., Ltd., Hulunbuir 021000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1251567862641537394, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, authorId=1251567860980593001, language=CN, stringName=王浩, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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4呼伦贝尔林草碳汇科技有限公司, 呼伦贝尔 021000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1251567859621638440, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, xref=4, ext=[AuthorCompanyExt(id=1251567859634221353, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, companyId=1251567859621638440, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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4呼伦贝尔林草碳汇科技有限公司, 呼伦贝尔 021000)])]), Author(id=1251567862742200695, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, orderNo=5, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1251567862863835514, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1251559137390309411, authorId=1251567862742200695, language=EN, stringName=Haijing TIAN, firstName=Haijing, middleName=null, lastName=TIAN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3, address=
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| 草原类型 | 植被覆盖度/% | 裸地(斑)面积比例/% | 物种丰富度/种 | 产草量/(g·m−2) | 可食牧草比例/% | 毒害草比例/% |
|---|
| 温性草甸草原 | 80 | 10 | 20 | 150 | 80 | 10 |
| 温性草原 | 50 | 30 | 15 | 100 | 90 | 10 |
| 温性荒漠草原 | 35 | 40 | 10 | 50 | 90 | 10 |
| 温性草原化荒漠 | 20 | 60 | 8 | 50 | 90 | 10 |
| 温性荒漠 | 20 | 70 | 5 | 40 | 85 | 15 |
| 山地草甸 | 90 | 10 | 20 | 180 | 85 | 10 |
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宁夏草原健康评估指标参考值
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| 草原类型 | 植被覆盖度/% | 裸地(斑)面积比例/% | 物种丰富度/种 | 产草量/(g·m−2) | 可食牧草比例/% | 毒害草比例/% |
|---|
| 温性草甸草原 | 80 | 10 | 20 | 150 | 80 | 10 |
| 温性草原 | 50 | 30 | 15 | 100 | 90 | 10 |
| 温性荒漠草原 | 35 | 40 | 10 | 50 | 90 | 10 |
| 温性草原化荒漠 | 20 | 60 | 8 | 50 | 90 | 10 |
| 温性荒漠 | 20 | 70 | 5 | 40 | 85 | 15 |
| 山地草甸 | 90 | 10 | 20 | 180 | 85 | 10 |
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