粮食不安全风险指数
Weighted aggregation, on 0 to 10, of acute and chronic food insecurity, food price stress, supply fragility and agricultural dependence.
Mazziotta–Pareto
expert weights · floor 0.1 where geometric
1,000 draws
normalisation, weights, aggregation, imputation
5 components
20 leaf indicators
67% minimum
modelled share ≤ 20%
From indicators to the composite
Joins today’s acute severity with the structural and price conditions that drive tomorrow’s; acute severity carries the largest weight and every sub-index stays visible.
- 受分析人口中处于 IPC 第 3 阶段及以上的占比Indicator · IND · %People in IPC or Cadre Harmonise Phase 3 to 5 as a percentage of the population covered by the analysis.
- 处于 IPC 第 3 阶段及以上的人口Indicator · IND · personsNumber of people classified in Crisis, Emergency or Catastrophe/Famine (IPC or Cadre Harmonise Phase 3 to 5) in the most recent current-period analysis.
- 是否存在处于 IPC 第 5 阶段的人口Indicator · IND · yes or noWhether the most recent current or projected analysis classifies any population or area in Phase 5 (Catastrophe or Famine).
- 食物不足发生率Indicator · IND · %Estimated share of the population whose habitual dietary energy intake falls below the minimum needed for a healthy, active life, three-year average.
- 中度或重度粮食不安全(FIES)Indicator · IND · %Share of the population living in households where at least one adult reported experiences of moderate or severe food insecurity on the Food Insecurity Experience Scale, three-year average.
- 重度粮食不安全(FIES)Indicator · IND · %Share of the population living in households where at least one adult reported severe food insecurity, such as running out of food or going a day without eating, three-year average.
- 无力负担健康膳食的人口Indicator · IND · %Share of the population whose income, after setting aside a typical share for non-food needs, falls below the cost of a healthy diet.
- 食品价格异常指标(食品 CPI)Indicator · IND · 1Weighted compound growth of the food consumer price index over quarterly and annual horizons, expressed in standard deviations from its historical mean; values of 1 or more are abnormally high.
- 食品价格异常偏高的月数Indicator · IND · %Share of the latest twelve months in which the food price anomaly indicator was 1 or above.
- 食品价格通胀率Indicator · IND · %Annual percentage change in the food component of the consumer price index.
- 健康膳食成本Indicator · IND · USDDaily cost per person of the least expensive locally available foods that meet food-based dietary guidelines, in PPP dollars.
- 平均膳食能量供应充足率Indicator · IND · %Dietary energy supply per person as a percentage of the average dietary energy requirement, three-year average.
- 人均食物供应波动性Indicator · IND · kcal per day per personYear-to-year variability of dietary energy supply per person, in kilocalories per person per day.
- 谷物进口依赖率Indicator · IND · %Net cereal imports as a percentage of domestic cereal supply (production plus imports minus exports), three-year average; negative values mark net exporters.
- 食品进口支出,占商品出口比重Indicator · IND · %Value of food imports as a percentage of total merchandise export earnings, three-year average.
- 农林渔业增加值,占 GDP 比重Indicator · IND · %Gross value added of agriculture, forestry and fishing (ISIC divisions 01–03) as a percentage of GDP.
- 农业就业,占总就业比重Indicator · IND · %People employed in agriculture, forestry and fishing as a percentage of total employment (ILO modelled estimate).
- 谷物单产Indicator · IND · kg/haHarvested production of cereals for dry grain per hectare of harvested land.
- 谷物单产波动性(15 年)Indicator · IND · %Coefficient of variation of linearly detrended national cereal yield over the latest fifteen years with data.
- 农业取水量,占总取水量比重Indicator · IND · %Freshwater withdrawn for irrigation, livestock and aquaculture as a percentage of total freshwater withdrawal.
- Acute food insecurity sub-indexSub-index · SUB · w 2 · 33.3%Composite of the share of analysed population in IPC Phase 3 or above, the absolute Phase 3+ caseload and the presence of Phase 5.
- Chronic food insecurity sub-indexSub-index · SUB · w 1.5 · 25.0%Composite of undernourishment, moderate-or-severe and severe food insecurity and the share unable to afford a healthy diet.
- Food price stress sub-indexSub-index · SUB · w 1 · 16.7%Composite of the food price anomaly indicator, persistence of abnormal prices, food CPI inflation and the cost of a healthy diet.
- Food supply fragility sub-indexSub-index · SUB · w 1 · 16.7%Composite of dietary energy supply adequacy (higher is safer), supply variability, cereal import dependency and the food import bill relative to exports.
- Agricultural dependence sub-indexSub-index · SUB · w 0.5 · 8.3%Composite of agriculture’s share of GDP and employment, cereal yield (higher is safer), yield variability and agriculture’s share of water withdrawal.
- 粮食不安全风险指数Domain index · IDX · Mazziotta–ParetoWeighted aggregation, on 0 to 10, of acute and chronic food insecurity, food price stress, supply fragility and agricultural dependence.
- 人类与系统脆弱性Pillar · PILLAR · 8 indicesHow susceptible are people, livelihoods, ecosystems and essential systems to harm when a shock arrives?
- NXS-GRX (canonical data, provenance and risk) Composite RiskComposite · COMPOSITE · four pillarsComposite = (HTE × VUL × MSF × LCC)^(1/4), each pillar on 0–10 floored at 0.1; pillar = expert-weighted geometric mean of its domain indices
Run this index’s own aggregation
Set each component, change the aggregation or the weight uncertainty, and watch the interval, the class probability and each component’s contribution respond.
Treatment, normalisation, weighting, aggregation, uncertainty
- Treatment
- WINSORISE
- Outlier rule
- |skew| > 2, kurtosis > 3.5
- Normalisation
- IDENTITY
- Imputation
- NONE
- Coverage minimum
- 67% of components
- Modelled share cap
- 20% of weight
- Weighting
- 专家
- Aggregation
- Mazziotta–Pareto
- Scale
- 0 to 10
- 不确定性
- 1,000 Monte Carlo runs over normalisation, weights, aggregation, imputation
- Framework basis
- IPC Technical Manual 3.1 (2021) contributing factors; FAO SOFI; FSIN Global Report on Food Crises (structure only); JRC COIN 10-step guide
5 components, 20 indicators
Acute food insecurity sub-index w 2
Composite of the share of analysed population in IPC Phase 3 or above, the absolute Phase 3+ caseload and the presence of Phase 5.
| 指标 | 单位 | 证据 | 来源 | 占比 |
|---|---|---|---|---|
受分析人口中处于 IPC 第 3 阶段及以上的占比IND.FOO.acute.ipc_phase3plus_share | % | Class B | ipc-api, cadre-harmonise, derived:nis:IND.FOO.acute.ipc_phase3plus_population | 50.0% |
处于 IPC 第 3 阶段及以上的人口IND.FOO.acute.ipc_phase3plus_population | {persons} | Class B | ipc-api, cadre-harmonise, fsin-grfc | 25.0% |
是否存在处于 IPC 第 5 阶段的人口IND.FOO.acute.ipc_phase5_presence | {bool} | Class B | ipc-api, cadre-harmonise, ipc-famine-review-committee | 25.0% |
Chronic food insecurity sub-index w 1.5
Composite of undernourishment, moderate-or-severe and severe food insecurity and the share unable to afford a healthy diet.
| 指标 | 单位 | 证据 | 来源 | 占比 |
|---|---|---|---|---|
食物不足发生率IND.FOO.availability.undernourishment | % | Class C | fao-faostat-fs, fao-sofi, wb-wdi | 25.0% |
中度或重度粮食不安全(FIES)IND.FOO.access.fies_moderate_severe | % | Class C | fao-faostat-fs, fao-fies, wb-wdi | 25.0% |
重度粮食不安全(FIES)IND.FOO.access.fies_severe | % | Class C | fao-faostat-fs, fao-fies, wb-wdi | 25.0% |
无力负担健康膳食的人口IND.FOO.access.healthy_diet_unaffordable | % | Class C | wb-food-prices-for-nutrition, fao-sofi | 25.0% |
Food price stress sub-index w 1
Composite of the food price anomaly indicator, persistence of abnormal prices, food CPI inflation and the cost of a healthy diet.
| 指标 | 单位 | 证据 | 来源 | 占比 |
|---|---|---|---|---|
食品价格异常指标(食品 CPI)IND.FOO.prices.food_price_anomaly | 1 | Class B | fao-giews-fpma, fao-faostat-cpi | 25.0% |
食品价格异常偏高的月数IND.FOO.prices.abnormal_price_months | % | Class D | derived:nis:IND.FOO.prices.food_price_anomaly | 25.0% |
食品价格通胀率IND.MAC.prices.food_inflation | % | Class B | fao-faostat-cpi, national-cpi | 25.0% |
健康膳食成本IND.FOO.access.healthy_diet_cost | [USD] | Class C | wb-food-prices-for-nutrition, fao-sofi | 25.0% |
Food supply fragility sub-index w 1
Composite of dietary energy supply adequacy (higher is safer), supply variability, cereal import dependency and the food import bill relative to exports.
| 指标 | 单位 | 证据 | 来源 | 占比 |
|---|---|---|---|---|
平均膳食能量供应充足率IND.FOO.availability.dietary_energy_adequacy | % | Class B | fao-faostat-fs | 25.0% |
人均食物供应波动性IND.FOO.availability.food_supply_variability | kcal/d/{person} | Class B | fao-faostat-fs | 25.0% |
谷物进口依赖率IND.FOO.availability.cereal_import_dependency | % | Class B | fao-faostat-fs | 25.0% |
食品进口支出,占商品出口比重IND.FOO.prices.food_import_bill_to_exports | % | Class B | fao-faostat-fs | 25.0% |
Agricultural dependence sub-index w 0.5
Composite of agriculture’s share of GDP and employment, cereal yield (higher is safer), yield variability and agriculture’s share of water withdrawal.
| 指标 | 单位 | 证据 | 来源 | 占比 |
|---|---|---|---|---|
农林渔业增加值,占 GDP 比重IND.FOO.agriculture.agri_value_added.gdp | % | Class A | wb-wdi, un-national-accounts | 22.2% |
农业就业,占总就业比重IND.FOO.agriculture.agri_employment_share | % | Class C | ilo-ilostat, wb-wdi | 22.2% |
谷物单产IND.FOO.agriculture.cereal_yield | kg/har | Class B | fao-faostat-qcl, wb-wdi | 22.2% |
谷物单产波动性(15 年)IND.FOO.agriculture.cereal_yield_variability | % | Class D | derived:nis:IND.FOO.agriculture.cereal_yield, fao-faostat-qcl | 22.2% |
农业取水量,占总取水量比重IND.FOO.agriculture.agri_water_withdrawal | % | Class B | fao-aquastat, wb-wdi | 11.1% |
粮食系统
Food availability, access, utilisation, stability and acute food insecurity.
| Sub-domain | 指标 |
|---|---|
| Availability | 5 |
| Access and affordability | 4 |
| Acute food insecurity | 4 |
| Food prices | 3 |
| Agricultural production and dependence | 7 |
Anchor frameworks (pillar structure and definitions only): FAO SOFI (PoU, FIES); IPC Technical Manual 3.1; SDG 2.
All 23 food systems indicators
| 指标 | 领域 | Sub-domain | 组件 | 单位 | 级别 | Crosswalks |
|---|---|---|---|---|---|---|
食物不足发生率IND.FOO.availability.undernourishment | FOO | Availability | vulnerability | % | COUNTRY | FAO_FAOSTAT 210041 SDG 2.1.1 WB_WDI SN.ITK.DEFC.ZS |
食物不足人数IND.FOO.availability.people_undernourished | FOO | Availability | vulnerability | {persons} | COUNTRY | FAO_FAOSTAT 210011 |
平均膳食能量供应充足率IND.FOO.availability.dietary_energy_adequacy | FOO | Availability | vulnerability | % | COUNTRY | FAO_FAOSTAT 21010 |
人均食物供应波动性IND.FOO.availability.food_supply_variability | FOO | Availability | vulnerability | kcal/d/{person} | COUNTRY | FAO_FAOSTAT 21031 |
谷物进口依赖率IND.FOO.availability.cereal_import_dependency | FOO | Availability | vulnerability | % | COUNTRY | FAO_FAOSTAT 21035 |
中度或重度粮食不安全(FIES)IND.FOO.access.fies_moderate_severe | FOO | Access and affordability | vulnerability | % | COUNTRY | FAO_FAOSTAT 210091 SDG 2.1.2 WB_WDI SN.ITK.MSFI.ZS |
重度粮食不安全(FIES)IND.FOO.access.fies_severe | FOO | Access and affordability | vulnerability | % | COUNTRY | FAO_FAOSTAT 210401 SDG 2.1.2 WB_WDI SN.ITK.SVFI.ZS |
健康膳食成本IND.FOO.access.healthy_diet_cost | FOO | Access and affordability | vulnerability | [USD] | COUNTRY | WB_WDI CoHD_PPP |
无力负担健康膳食的人口IND.FOO.access.healthy_diet_unaffordable | FOO | Access and affordability | vulnerability | % | COUNTRY | WB_WDI CoHD_headcount |
处于 IPC 第 3 阶段及以上的人口IND.FOO.acute.ipc_phase3plus_population | FOO | Acute food insecurity | impact | {persons} | COUNTRY, ADM1, ADM2 | IPC Phase 3+ |
受分析人口中处于 IPC 第 3 阶段及以上的占比IND.FOO.acute.ipc_phase3plus_share | FOO | Acute food insecurity | impact | % | COUNTRY, ADM1, ADM2 | IPC Phase 3+ |
IPC 第 3 阶段及以上,占总人口比重IND.FOO.acute.ipc_phase3plus_population_share_total | FOO | Acute food insecurity | impact | % | COUNTRY | |
是否存在处于 IPC 第 5 阶段的人口IND.FOO.acute.ipc_phase5_presence | FOO | Acute food insecurity | impact | {bool} | COUNTRY, ADM1, ADM2 | IPC Phase 5 |
食品价格异常指标(食品 CPI)IND.FOO.prices.food_price_anomaly | FOO | Food prices | hazard | 1 | COUNTRY | SDG 2.c.1 |
食品价格异常偏高的月数IND.FOO.prices.abnormal_price_months | FOO | Food prices | hazard | % | COUNTRY | |
食品进口支出,占商品出口比重IND.FOO.prices.food_import_bill_to_exports | FOO | Food prices | vulnerability | % | COUNTRY | FAO_FAOSTAT 21033 |
农林渔业增加值,占 GDP 比重IND.FOO.agriculture.agri_value_added.gdp | FOO | Agricultural production and dependence | vulnerability | % | COUNTRY | WB_WDI NV.AGR.TOTL.ZS |
农业就业,占总就业比重IND.FOO.agriculture.agri_employment_share | FOO | Agricultural production and dependence | vulnerability | % | COUNTRY | WB_WDI SL.AGR.EMPL.ZS |
谷物单产IND.FOO.agriculture.cereal_yield | FOO | Agricultural production and dependence | vulnerability | kg/har | COUNTRY | WB_WDI AG.YLD.CREL.KG |
谷物单产波动性(15 年)IND.FOO.agriculture.cereal_yield_variability | FOO | Agricultural production and dependence | vulnerability | % | COUNTRY | |
农业取水量,占总取水量比重IND.FOO.agriculture.agri_water_withdrawal | FOO | Agricultural production and dependence | vulnerability | % | COUNTRY | WB_WDI ER.H2O.FWAG.ZS |
耕地,占陆地面积比重IND.FOO.agriculture.cropland.share | FOO | Agricultural production and dependence | exposure | % | COUNTRY, ADM1, ADM2, GRID | WB_WDI AG.LND.ARBL.ZS |
耕地植被健康指数IND.FOO.agriculture.vegetation_health_index | FOO | Agricultural production and dependence | hazard | {score} | COUNTRY, ADM1, ADM2, GRID |
Food insecurity risk index, world
The world reading of this index, every country as a tile and the largest movements since the previous edition.
- 上一版
- –
- Range since 2016
- –
- 耦合综合
- –
- 耦合得分 S
- –
- 脉搏,最近一周
- –
- Outlook, 12 months
- –
- 方法
- Indicator Standard 1.0 · NXS-GRX 2026
- 抽样次数
- 1,000
尚无已发布的数值。第一版发布后将在这里绘制历史,并附区间带和类别边界。
Country values
- 瓦片
/api/v1/public/grix/risk-products/tiles/foo/{z}/{x}/{y}.mvt- 观测键
nis:IDX.FOO.acute.food_insecurity_risk:{ISO3}:{YEAR}:A
Series that read this index
Crosswalks and validity checks
Crosswalks map leaf indicators to source code lists; established indices are used for validity checks, never re-weighted as inputs.
| Code system | Leaf indicators mapped |
|---|---|
WB_WDI | 9 |
FAO_FAOSTAT | 8 |
SDG | 4 |
IPC | 3 |
Platforms, standards and ways to take part
Field and service platforms of GCRI, GRF and GRA, the Nexus Risk Standards for this domain, learning, working groups and open calls. Every link is a live page.
引用与再利用
See this index in every country profile
Each profile shows this index with its interval and class once released.
状态
The Global Risks Index 的方法、结构和定义为预备性工作草案(2026),供审阅和评论,不供实施。在从受治理的证据截取中发布版本之前,不会出现任何数值;届时数值将附有区间、类别、来源及其更正途径。模拟器以您选择的数字运行已发布的方法,绝不显示 NXS-GRX 数值。
NXS-GRX 不是什么
NXS-GRX 是研究和风险分析信息。它不是信用评级或 ESG 评级,不使用任何评级尺度;它不是金融工具的基准,不是官方统计,不是紧急警报或官方分类,也不是建议。不得用于评估自然人。风险等级是已发布尺度上的区间,绝不是对国家或个人的排名。
机构与来源
The Nexus Consortium is stewarded by three independent not-for-profit institutions: The Global Centre for Risk and Innovation (GCRI), through GCRI US in Washington, DC and GCRI Canada in Ontario, with GCRI Canada as Lead Institution, Consortium Secretariat and lead contracting organisation; The Global Risks Forum (GRF); and The Global Risks Alliance (GRA). Technology, infrastructure and service providers work with the Consortium at arm’s length under written agreements, like every other external party in the public-private-planet model, and hold no role in its stewardship.
每个数值均附有其来源的署名,这些来源保留各自的许可。外部名称仅为互操作性而引用。Nexus 撰写的文本拟在发布时采用 CC BY 4.0。
Avis en français
La méthodologie et les définitions du NXS-GRX sont un projet de travail préparatoire (2026). Le NXS-GRX est une information de recherche et d’analyse des risques : ni notation, ni indice de référence financier, ni statistique officielle, ni alerte, ni conseil. Les classes de risque sont des bandes sur une échelle publiée, non des classements.