Article(id=1156264261736321659, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156264148657886112, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2402280, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1711814400000, receivedDateStr=2024-03-31, revisedDate=1733846400000, revisedDateStr=2024-12-11, acceptedDate=null, acceptedDateStr=null, onlineDate=1753604482348, onlineDateStr=2025-07-27, pubDate=1740672000000, pubDateStr=2025-02-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1753604482348, onlineIssueDateStr=2025-07-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1753604482348, creator=13701087609, updateTime=1753604482348, updator=13701087609, issue=Issue{id=1156264148657886112, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='6', pageStart='2193', pageEnd='2636', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1753604455388, creator=13701087609, updateTime=1753771257443, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1156963767234945803, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156264148657886112, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1156963767234945804, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156264148657886112, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=2627, endPage=2636, ext={EN=ArticleExt(id=1156264262218666621, articleId=1156264261736321659, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Ecological Security Assessment and Multi-scenario Pattern Prediction of Mountain Cities: A Case Study of Chongqing, columnId=1156262729993277777, journalTitle=Science Technology and Engineering, columnName=Papers·Environmental and Safe Science, runingTitle=null, highlight=null, articleAbstract=
Land ecological security is the core of sustainable use of land resources, and land use changes caused by human activities change the structure and function of ecosystems, which have a serious impact on the regional ecological security system. In order to explore the changes in ecological security in Chongqing in recent years and in 2030, Chongqing was taken as the research object and PLUS (patch-level land use simulation) model was employed to simulate land use changes under the scenarios of natural development, ecological priority and development priority in 2030. Based on the ecological perspective, an ecological security evaluation index system was constructed, and the mutation model was combined to quantitatively evaluate the level of land ecological security. The results show that the spatial distribution of land use types in Chongqing is quite different, the cultivated land area decreased by 3 995.14 km2, and the construction land area increased by 1 147.36 km2, realizing rapid urban development. At the same time, 64.53%, 67.31% and 55.97% were relatively safe or above under the three scenarios. The spatial pattern of ecological security in Chongqing is opposite to the spatial pattern of population density and GDP, and consistent with the spatial pattern of natural data such as vegetation cover and slope. Through the ecological assessment of land use changes in previous years and under different scenarios, it provides a basis for high-quality coordinated development of ecology and economy.
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土地生态安全是土地资源持续利用的核心,由人类活动造成的土地利用变化改变生态系统结构与功能,对区域生态安全系统产生严重影响。为探究近年来重庆市及2030年生态安全变化情况,以重庆市为研究对象,采用PLUS(patch-level land use simulation)模型模拟2030年自然发展、生态优先、发展优先情景下土地利用变化。基于生态学角度构建生态安全评价指标体系,并结合突变模型定量评价土地生态安全水平。结果表明重庆市土地利用类型空间分布差异较大,耕地面积减少3 995.14 km2,建设用地面积增加1 147.36 km2,实现城市快速发展;2000—2020年重庆市生态安全处于一般安全等级以上面积占比呈增加-降低-增加-减少趋势,总体呈上升趋势。同时三种情景下处于在相对安全及以上占64.53%、67.31%、55.97%;重庆市生态安全空间格局与人口密度、GDP等空间格局相反,与植被覆盖、坡度等自然数据空间格局相符。通过对往年及不同情景下的土地利用变化情况进行生态评定,为生态及经济高质量协同发展提供依据。
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沈祺林(2000—),男,汉族,安徽芜湖人,硕士研究生。研究方向:资源与环境。E-mail:2464538607@qq.com。
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沈祺林(2000—),男,汉族,安徽芜湖人,硕士研究生。研究方向:资源与环境。E-mail:2464538607@qq.com。
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Location map of Chongqing City, figureFileSmall=f4CVcBJmkt5QwqTmIiASpA==, figureFileBig=aZ/n3r7UesC5YXUdWD0SPA==, tableContent=null), ArticleFig(id=1233422556733174160, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=CN, label=图1, caption=
重庆市区位图, figureFileSmall=f4CVcBJmkt5QwqTmIiASpA==, figureFileBig=aZ/n3r7UesC5YXUdWD0SPA==, tableContent=null), ArticleFig(id=1233422556930306462, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=EN, label=Fig.2, caption=
Land use types in Chongqing from 2000 to 2020, figureFileSmall=mgFmSjphxNQPBTcJWibcQg==, figureFileBig=vdhUkNGd4S1z8gEcWluL0w==, tableContent=null), ArticleFig(id=1233422557056135594, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=CN, label=图2, caption=
2000—2020年重庆市土地利用类型, figureFileSmall=mgFmSjphxNQPBTcJWibcQg==, figureFileBig=vdhUkNGd4S1z8gEcWluL0w==, tableContent=null), ArticleFig(id=1233422557177770424, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=EN, label=Fig.3, caption=
Prediction of land use types in Chongqing in 2030 under multiple scenarios, figureFileSmall=u51iQ8/9kJMIXO+js80u+A==, figureFileBig=SwsjxDThc11sBG8UGKVuHA==, tableContent=null), ArticleFig(id=1233422557311988164, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=CN, label=图3, caption=
多情景下对2030年重庆市土地利用类型预测, figureFileSmall=u51iQ8/9kJMIXO+js80u+A==, figureFileBig=SwsjxDThc11sBG8UGKVuHA==, tableContent=null), ArticleFig(id=1233422557471371729, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=EN, label=Fig.4, caption=
Spatial distribution of ecological security in Chongqing from 2000 to 2020, figureFileSmall=geOgjkdQECYVznVboEu6yg==, figureFileBig=EyIKDjmbJNeLA4fhmO/h5g==, tableContent=null), ArticleFig(id=1233422557630755291, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=CN, label=图4, caption=
2000年—2020年重庆市生态安全空间分布, figureFileSmall=geOgjkdQECYVznVboEu6yg==, figureFileBig=EyIKDjmbJNeLA4fhmO/h5g==, tableContent=null), ArticleFig(id=1233422557756584418, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=EN, label=Fig.5, caption=
Spatial distribution of ecological security in Chongqing under three scenarios in 2030, figureFileSmall=DNcLs8+2PYpK0S+q5CBz9Q==, figureFileBig=Gza9oCC/V+yI0gIT4X60Rw==, tableContent=null), ArticleFig(id=1233422559182647789, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=CN, label=图5, caption=
2030年三种情景下重庆市生态安全空间分布, figureFileSmall=DNcLs8+2PYpK0S+q5CBz9Q==, figureFileBig=Gza9oCC/V+yI0gIT4X60Rw==, tableContent=null), ArticleFig(id=1233422559308476922, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=EN, label=Table 1, caption=
Data information
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据类型 | 数据名称 | 时间/年 | 空间分辨率/m | 数据来源 |
| 遥感影像数据 | 土地利用数据 | 2000—2020 | 30 | 武汉大学遥感信息工程学院遥感信息处理研究所(http://irsip.whu.edu.cn/) |
| DEM数据 | — | 30 | 地理空间数据云(www.gscloud.cn) |
| 坡度 | — | 30 | 基于DEM提取 |
| NDVI数据 | 2000—2020 | 1 000 | http://www.resdc.cn/data.aspx?DATAID=257 |
| 人口分布数据 | 2000—2020 | 1 000 | https://landscan.ornl.gov/ |
| 社会经济数据 | GDP分布数据 | 2000—2020 | 1 000 | http://www.resdc.cn/data.aspx?DATAID=252 |
| 距城镇距离 | 2020 | 30 | ArcGIS欧氏距离分析 |
| 距铁路距离 | 30 |
| 距公路距离 | 30 |
| 距河流距离 | 30 |
), ArticleFig(id=1233422559451083269, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=CN, label=表1, caption=
数据信息
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据类型 | 数据名称 | 时间/年 | 空间分辨率/m | 数据来源 |
| 遥感影像数据 | 土地利用数据 | 2000—2020 | 30 | 武汉大学遥感信息工程学院遥感信息处理研究所(http://irsip.whu.edu.cn/) |
| DEM数据 | — | 30 | 地理空间数据云(www.gscloud.cn) |
| 坡度 | — | 30 | 基于DEM提取 |
| NDVI数据 | 2000—2020 | 1 000 | http://www.resdc.cn/data.aspx?DATAID=257 |
| 人口分布数据 | 2000—2020 | 1 000 | https://landscan.ornl.gov/ |
| 社会经济数据 | GDP分布数据 | 2000—2020 | 1 000 | http://www.resdc.cn/data.aspx?DATAID=252 |
| 距城镇距离 | 2020 | 30 | ArcGIS欧氏距离分析 |
| 距铁路距离 | 30 |
| 距公路距离 | 30 |
| 距河流距离 | 30 |
), ArticleFig(id=1233422559576912400, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=EN, label=Table 2, caption=
Scenario simulation cost matrix
, figureFileSmall=null, figureFileBig=null, tableContent=
情景 设置 | 惯性发展情景 | 城市发展情景 | 生态优先情景 |
| 耕地 | 林地 | 草地 | 灌木 | 水域 | 建设 用地 | 未利 用地 | 耕地 | 林地 | 草地 | 灌木 | 水域 | 建设 用地 | 未利 用地 | 耕地 | 林地 | 草地 | 灌木 | 水域 | 建设 用地 | 未利 用地 |
| 耕地 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 林地 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| 草地 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 |
| 灌木 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 |
| 水域 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 建设用地 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 未利用地 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
), ArticleFig(id=1233422559744684571, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=CN, label=表2, caption=
情景模拟成本矩阵
, figureFileSmall=null, figureFileBig=null, tableContent=
情景 设置 | 惯性发展情景 | 城市发展情景 | 生态优先情景 |
| 耕地 | 林地 | 草地 | 灌木 | 水域 | 建设 用地 | 未利 用地 | 耕地 | 林地 | 草地 | 灌木 | 水域 | 建设 用地 | 未利 用地 | 耕地 | 林地 | 草地 | 灌木 | 水域 | 建设 用地 | 未利 用地 |
| 耕地 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 林地 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| 草地 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 |
| 灌木 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 |
| 水域 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 建设用地 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 未利用地 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
), ArticleFig(id=1233422559887290916, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=EN, label=Table 3, caption=
Ecological security evaluation index system
, figureFileSmall=null, figureFileBig=null, tableContent=
生态安 全评价 指标 体系 | 生态敏感性 | 经济压力 | GDP |
| 人口密度 |
| 社会压力 | 距城市距离 |
| 距道路距离 |
| 距河流距离 |
| 生态组织结构 | 景观破碎度 | 边缘密度 |
| 香农多样性指数 |
| 斑块破碎度 |
| 面积加权平均形状指数 |
| 景观连通度 | 斑块平均距离 |
| 斑块连接度 |
| 生态能力 | 自然生态 | NDVI |
| 坡度 |
| 植被覆盖 |
), ArticleFig(id=1233422560034091567, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=CN, label=表3, caption=
生态安全评价指标体系
, figureFileSmall=null, figureFileBig=null, tableContent=
生态安 全评价 指标 体系 | 生态敏感性 | 经济压力 | GDP |
| 人口密度 |
| 社会压力 | 距城市距离 |
| 距道路距离 |
| 距河流距离 |
| 生态组织结构 | 景观破碎度 | 边缘密度 |
| 香农多样性指数 |
| 斑块破碎度 |
| 面积加权平均形状指数 |
| 景观连通度 | 斑块平均距离 |
| 斑块连接度 |
| 生态能力 | 自然生态 | NDVI |
| 坡度 |
| 植被覆盖 |
), ArticleFig(id=1233422560197669431, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=EN, label=Table 4, caption=
Formulas related to the mutation progression method
, figureFileSmall=null, figureFileBig=null, tableContent=
| 突变类型 | 势函数 | 状态变量 | 变量数量 | 归一化公式 |
| 折叠突变模型 | $Y=\frac{1}{3}{x}^{3}+ax$ | X | 1 | ${x}_{a}=\sqrt{a}$ |
| 尖点突变模型 | $Y=\frac{1}{4}{x}^{4}+\frac{1}{2}a{x}^{2}+bx$ | X | 2 | ${x}_{a}=\sqrt{a};{x}_{b}=\sqrt[3]{b}$ |
| 燕尾突变模型 | $Y=\frac{1}{5}{x}^{5}+\frac{1}{3}a{x}^{3}+\frac{1}{2}b{x}^{2}+cx$ | X | 3 | ${x}_{a}=\sqrt{a};{x}_{b}=\sqrt[3]{b};{x}_{c}=\sqrt[4]{c}$ |
| 蝴蝶突变模型 | $Y=\frac{1}{6}{x}^{6}+\frac{1}{4}a{x}^{4}+\frac{1}{3}b{x}^{3}+\frac{1}{2}c{x}^{2}+dx$ | X | 4 | ${x}_{a}=\sqrt{a};{x}_{b}=\sqrt[3]{b};{x}_{c}=\sqrt[4]{c};{x}_{d}=\sqrt[5]{d}$ |
), ArticleFig(id=1233422560365441599, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=CN, label=表4, caption=
突变级数法相关公式
, figureFileSmall=null, figureFileBig=null, tableContent=
| 突变类型 | 势函数 | 状态变量 | 变量数量 | 归一化公式 |
| 折叠突变模型 | $Y=\frac{1}{3}{x}^{3}+ax$ | X | 1 | ${x}_{a}=\sqrt{a}$ |
| 尖点突变模型 | $Y=\frac{1}{4}{x}^{4}+\frac{1}{2}a{x}^{2}+bx$ | X | 2 | ${x}_{a}=\sqrt{a};{x}_{b}=\sqrt[3]{b}$ |
| 燕尾突变模型 | $Y=\frac{1}{5}{x}^{5}+\frac{1}{3}a{x}^{3}+\frac{1}{2}b{x}^{2}+cx$ | X | 3 | ${x}_{a}=\sqrt{a};{x}_{b}=\sqrt[3]{b};{x}_{c}=\sqrt[4]{c}$ |
| 蝴蝶突变模型 | $Y=\frac{1}{6}{x}^{6}+\frac{1}{4}a{x}^{4}+\frac{1}{3}b{x}^{3}+\frac{1}{2}c{x}^{2}+dx$ | X | 4 | ${x}_{a}=\sqrt{a};{x}_{b}=\sqrt[3]{b};{x}_{c}=\sqrt[4]{c};{x}_{d}=\sqrt[5]{d}$ |
), ArticleFig(id=1233422560516436552, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=EN, label=Table 5, caption=
Changes of land use types in Chongqing from 2000 to 2030
, figureFileSmall=null, figureFileBig=null, tableContent=
| 年份 | 参数 | 耕地 | 林地 | 草地 | 灌木 | 水域 | 建设用地 | 荒地 |
| 2000年 | 面积/km2 | 38 707.06 | 41 288.15 | 194.24 | 977.74 | 809.77 | 525.69 | 0.01 |
| 比例/% | 46.92 | 50.04 | 0.24 | 1.19 | 0.98 | 0.64 | 0.000 011 |
| 2005年 | 面积/km2 | 37 945.69 | 41 846.79 | 112.33 | 1023.91 | 927.81 | 646.12 | 0.01 |
| 比例/% | 45.99 | 50.72 | 0.14 | 1.24 | 1.12 | 0.78 | 0.000 011 |
| 2010年 | 面积/km2 | 35 813.48 | 43 633.11 | 92.74 | 997.66 | 1 060.03 | 905.53 | 0.11 |
| 比例/% | 43.41 | 52.89 | 0.11 | 1.21 | 1.28 | 1.10 | 0.000 136 |
| 2015年 | 面积/km2 | 36 821.02 | 42 715.13 | 92.72 | 420.31 | 1 123.41 | 1 329.92 | 0.15 |
| 比例/% | 44.63 | 51.77 | 0.11 | 0.51 | 1.36 | 1.61 | 0.000 184 |
| 2020年 | 面积/km2 | 34 711.92 | 44 691.62 | 69.00 | 263.01 | 1 093.01 | 1 673.05 | 1.06 |
| 比例/% | 42.07 | 54.17 | 0.08 | 0.32 | 1.32 | 2.03 | 0.001 288 |
2030年 城市发展 | 面积/km2 | 33 505.73 | 45 096.62 | 56.91 | 235.48 | 1 100.95 | 2 506.75 | 0.04 |
| 比例/% | 40.61 | 54.66 | 0.07 | 0.29 | 1.33 | 3.04 | 0.000 045 |
2030年 生态发展 | 面积/km2 | 33 635.82 | 45 116.45 | 76.40 | 694.38 | 1 051.18 | 1 928.23 | 0.007 |
| 比例/% | 40.77 | 54.68 | 0.09 | 0.84 | 1.27 | 2.34 | 0.000 009 |
2030年 自然发展 | 面积/km2 | 33 830.75 | 45 145.95 | 68.54 | 247.08 | 1 097.26 | 2 112.76 | 0.14 |
| 比例/% | 41.01 | 54.72 | 0.08 | 0.30 | 1.33 | 2.56 | 0.000 166 |
), ArticleFig(id=1233422560629682766, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=CN, label=表5, caption=
2000—2030年重庆市土地利用类型变化
, figureFileSmall=null, figureFileBig=null, tableContent=
| 年份 | 参数 | 耕地 | 林地 | 草地 | 灌木 | 水域 | 建设用地 | 荒地 |
| 2000年 | 面积/km2 | 38 707.06 | 41 288.15 | 194.24 | 977.74 | 809.77 | 525.69 | 0.01 |
| 比例/% | 46.92 | 50.04 | 0.24 | 1.19 | 0.98 | 0.64 | 0.000 011 |
| 2005年 | 面积/km2 | 37 945.69 | 41 846.79 | 112.33 | 1023.91 | 927.81 | 646.12 | 0.01 |
| 比例/% | 45.99 | 50.72 | 0.14 | 1.24 | 1.12 | 0.78 | 0.000 011 |
| 2010年 | 面积/km2 | 35 813.48 | 43 633.11 | 92.74 | 997.66 | 1 060.03 | 905.53 | 0.11 |
| 比例/% | 43.41 | 52.89 | 0.11 | 1.21 | 1.28 | 1.10 | 0.000 136 |
| 2015年 | 面积/km2 | 36 821.02 | 42 715.13 | 92.72 | 420.31 | 1 123.41 | 1 329.92 | 0.15 |
| 比例/% | 44.63 | 51.77 | 0.11 | 0.51 | 1.36 | 1.61 | 0.000 184 |
| 2020年 | 面积/km2 | 34 711.92 | 44 691.62 | 69.00 | 263.01 | 1 093.01 | 1 673.05 | 1.06 |
| 比例/% | 42.07 | 54.17 | 0.08 | 0.32 | 1.32 | 2.03 | 0.001 288 |
2030年 城市发展 | 面积/km2 | 33 505.73 | 45 096.62 | 56.91 | 235.48 | 1 100.95 | 2 506.75 | 0.04 |
| 比例/% | 40.61 | 54.66 | 0.07 | 0.29 | 1.33 | 3.04 | 0.000 045 |
2030年 生态发展 | 面积/km2 | 33 635.82 | 45 116.45 | 76.40 | 694.38 | 1 051.18 | 1 928.23 | 0.007 |
| 比例/% | 40.77 | 54.68 | 0.09 | 0.84 | 1.27 | 2.34 | 0.000 009 |
2030年 自然发展 | 面积/km2 | 33 830.75 | 45 145.95 | 68.54 | 247.08 | 1 097.26 | 2 112.76 | 0.14 |
| 比例/% | 41.01 | 54.72 | 0.08 | 0.30 | 1.33 | 2.56 | 0.000 166 |
), ArticleFig(id=1233422560763900508, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=EN, label=Table 6, caption=
Proportion of ecological security level in Chongqing from 2000 to 2020
, figureFileSmall=null, figureFileBig=null, tableContent=
| 生态安全等级 | 占比/% |
| 2000年 | 2005年 | 2010年 | 2015年 | 2020年 |
| 不安全 | 1.88 | 2.02 | 2.45 | 2.75 | 3.33 |
| 相对不安全 | 14.36 | 12.97 | 13.39 | 12.17 | 14.79 |
| 一般安全 | 33.04 | 33.07 | 31.16 | 32.03 | 28.81 |
| 相对安全 | 20.03 | 19.78 | 20.92 | 18.68 | 21.59 |
| 安全 | 30.69 | 32.16 | 32.07 | 34.37 | 31.47 |
), ArticleFig(id=1233422560872952416, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=CN, label=表6, caption=
2000—2020年重庆市生态安全等级占比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 生态安全等级 | 占比/% |
| 2000年 | 2005年 | 2010年 | 2015年 | 2020年 |
| 不安全 | 1.88 | 2.02 | 2.45 | 2.75 | 3.33 |
| 相对不安全 | 14.36 | 12.97 | 13.39 | 12.17 | 14.79 |
| 一般安全 | 33.04 | 33.07 | 31.16 | 32.03 | 28.81 |
| 相对安全 | 20.03 | 19.78 | 20.92 | 18.68 | 21.59 |
| 安全 | 30.69 | 32.16 | 32.07 | 34.37 | 31.47 |
), ArticleFig(id=1233422560982004328, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=EN, label=Table 7, caption=
Ecological security level of Chongqing in 2030
, figureFileSmall=null, figureFileBig=null, tableContent=
| 等级 | 城市发展 | 生态发展 | 自然发展 |
| 不安全 | 6.38 | 3.92 | 3.73 |
| 相对不安全 | 8.37 | 6.20 | 6.59 |
| 一般安全 | 29.27 | 22.56 | 25.15 |
| 相对安全 | 10.74 | 28.46 | 35.52 |
| 安全 | 45.23 | 38.85 | 29.01 |
), ArticleFig(id=1233422561103639150, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1156264261736321659, language=CN, label=表7, caption=
2030年重庆市生态安全等级
, figureFileSmall=null, figureFileBig=null, tableContent=
| 等级 | 城市发展 | 生态发展 | 自然发展 |
| 不安全 | 6.38 | 3.92 | 3.73 |
| 相对不安全 | 8.37 | 6.20 | 6.59 |
| 一般安全 | 29.27 | 22.56 | 25.15 |
| 相对安全 | 10.74 | 28.46 | 35.52 |
| 安全 | 45.23 | 38.85 | 29.01 |
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