全球森林评论

报告世界森林状况

世界上许多森林都在损害和退化或完全消失。他们提供有形商品的能力,例如纤维,食物和药物,以及基本的生态服务,包括生物多样性,碳储存和适度淡水流量的栖息地,比以往任何时候都受到更大的威胁。

《全球森林评论》(GFR)提供了从最佳可用地理空间数据和分析中产生的见解,以支持全球努力保护和恢复全球森林的社区。阅读有关我们为什么创建GFR的更多信息

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森林损失在2021年保持顽固

指标

指标分为五类,以提供数据驱动和全球规模的方法来监视重要的森林趋势。

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森林脉搏

探索有关森林砍伐和森林损失趋势的最新分析。

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保护热带森林

了解为什么要丢失热带森林以及如何保护它们。

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指标

跟踪有关全球森林资源及其状况,管理和使用程度的重要趋势。

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前10个列表

看看哪些国家在森林方面做得最好,最糟糕,并比较多个指标的国家。

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Targets Tracker(即将推出)

评估国际努力的进展,以减少森林砍伐,战斗气候变化,恢复森林并保护生物多样性。必威官网是真的吗

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数据和方法

查看所使用的关键数据集及其源,执行的分析以及相关假设以及关键术语词汇表的详细说明。

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{“词汇表”:{“ 51”:{“名称”:“农业树作物”,“描述”:“为食物,文化或经济价值耕种的树木包括油棕,橡胶,可可,可可,腰果,芒果,芒果,橙(柑橘),车前草,香蕉和椰子。\ r \ n“},“ 101”:{“ name”:“ abedo”,“ description”:“表面反射阳光的能力。\ u0026nbsp; light light- 颜色的表面将大部分日光归还回到大气(高反照率)。黑暗表面吸收了来自太阳的光线(低反照率)。\ r \ n“},“ 94”:{“ name”:“:”生物多样性完整性”,“描述”:“保留的位置\ u0027s原始森林社区(物种和个人的数量)的比例和丰度。生物多样性意义”,“描述”:“一个区域基于稀有性的森林依赖物种的持久性的重要性。\ r \ n“},“ 98”:{“ name”:“二氧化碳(CO2E)“,”描述:“二氧化碳当量(CO2E)是一种用于聚集各种Gree排放的度量基于其100年全球变暖潜力的nhouse气体(GHG),通过将非CO2 GHG等同于等效量的CO2。描述“:”二氧化碳当量(CO2E)是一种方法,用于通过将非CO2 GHG等效到同等量的CO2等于\ r的100年全球变暖潜力,用于汇总各种温室气体(GHG)的排放。\ r\ n“},“ 1”:{“名称”:“ Deforestation”,“ Descriptate”:“从森林到另一个土地覆盖或土地使用的变化,例如森林到种植园或森林到市区。\ r \ n“},“ 77”:{“名称”:“ Deforested”,“描述”:“从森林到另一个土地覆盖或土地使用的变化,例如森林或种植园或森林到市区。\ r \ n”},“ 76”:{“名称”:“退化”,“描述”:“由于自然和人为的变化,森林\ U2019S执行生态系统服务的能力(例如碳存储和水调节)的能力。\ r \ \ r \ \ r \ \ r \n“},“ 75”:{“ name”:“ degraded”,“ description”:“森林的减少\由于自然和人为的变化,U2019S执行生态系统服务的能力,例如碳存储和水调节。这改变了森林生态系统的结构。\ r \ n“},“ 68”:{“ name”:“ discrianct”,“ description”:“一个改变森林生态系统结构的离散事件。\ r \ n“},“ 65”:{“名称”:“树覆盖损失”,“描述”:“森林干扰的直接原因。\ r \ n”},“ 70”:{“ name”:“驱动程序损失”,“描述”:“森林干扰的直接原因。\ r \ n“},“ 81”:{“ name”:“树覆盖驱动器损失”,“描述”:“森林的直接原因 disturbance.\r\n"},"102":{"name":"evapotranspiration","description":"When solar energy hitting a forest converts liquid water into water vapor (carrying energy as latent heat) through evaporation and transpiration.\r\n"},"2":{"name":"forest","description":"Forests include tree cover greater than 30 percent tree canopy density and greater than 5 meters in height as mapped at a 30-meter Landsat pixel scale.\r\n"},"3":{"name":"forest concession","description":"A legal agreement allowing an entity the right to manage a public forest for production purposes.\r\n"},"90":{"name":"forest concessions","description":"A legal agreement allowing an entity the right to manage a public forest for production purposes.\r\n"},"53":{"name":"forest degradation","description":"The reduction in a forest\u2019s ability to perform ecosystem services, such as carbon storage and water regulation, due to natural and anthropogenic changes.\r\n"},"54":{"name":"forest disturbance","description":"A discrete event that changes the structure of a forest ecosystem.\r\n"},"100":{"name":"forest disturbances","description":"A discrete event that changes the structure of a forest ecosystem.\r\n"},"5":{"name":"forest fragmentation","description":"The breaking of large, contiguous forests into smaller pieces, with other land cover types interspersed.\r\n"},"6":{"name":"forest management plan","description":"A plan that documents the stewardship and use of forests and other wooded land to meet environmental, economic, social, and cultural objectives. Such plans are typically implemented by companies in forest concessions.\r\n"},"62":{"name":"forests","description":"Forests include tree cover greater than 30 percent tree canopy density and greater than 5 meters in height as mapped at a 30-meter Landsat pixel scale.\r\n"},"69":{"name":"fragmentation","description":"The breaking of large, contiguous forests into smaller pieces, with other land cover types interspersed.\r\n"},"80":{"name":"fragmented","description":"The breaking of large, contiguous forests into smaller pieces, with other land cover types interspersed.\r\n"},"74":{"name":"gain","description":"The establishment of tree canopy in an area that previously had no tree cover. Tree cover gain may indicate a number of potential activities, including natural forest growth or the crop rotation cycle of tree plantations.\r\n"},"7":{"name":"hectare","description":"One hectare equals 100 square meters, 2.47 acres, or 0.01 square kilometers and is about the size of a rugby field. A football pitch is slightly smaller than a hectare (pitches are between 0.62 and 0.82 hectares).\r\n"},"66":{"name":"hectares","description":"One hectare equals 100 square meters, 2.47 acres, or 0.01 square kilometers and is about the size of a rugby field. A football pitch is slightly smaller than a hectare (pitches are between 0.62 and 0.82 hectares).\r\n"},"67":{"name":"intact","description":"A forest that contains no signs of human activity or habitat fragmentation as determined by remote sensing images and is large enough to maintain all native biological biodiversity.\r\n"},"78":{"name":"intact forest","description":"A forest that contains no signs of human activity or habitat fragmentation as determined by remote sensing images and is large enough to maintain all native biological biodiversity.\r\n"},"8":{"name":"intact forests","description":"A forest that contains no signs of human activity or habitat fragmentation as determined by remote sensing images and is large enough to maintain all native biological biodiversity.\r\n"},"55":{"name":"land and environmental defenders","description":"People who peacefully promote and protect rights related to land and\/or the environment.\r\n"},"9":{"name":"loss driver","description":"The direct cause of forest disturbance.\r\n"},"10":{"name":"low tree canopy density","description":"Less than 30 percent tree canopy density.\r\n"},"84":{"name":"managed forest concession","description":"Areas where governments have given rights to private companies to harvest timber and other wood products from natural forests on public lands.\r\n"},"83":{"name":"managed forest concession maps for nine countries","description":"Cameroon, Canada, Central African Republic, Democratic Republic of the Congo, Equatorial Guinea, Gabon, Indonesia, Liberia, and the Republic of the Congo\r\n"},"91":{"name":"megacities","description":"A city with more than 10 million people.\r\n"},"57":{"name":"megacity","description":"A city with more than 10 million people."},"56":{"name":"mosaic restoration","description":"Restoration that integrates trees into mixed-use landscapes, such as agricultural lands and settlements, where trees can support people through improved water quality, increased soil fertility, and other ecosystem services. This type of restoration is more likely in deforested or degraded forest landscapes with moderate population density (10\u2013100 people per square kilometer). "},"86":{"name":"natural","description":"A forest that is grown without human intervention.\r\n"},"12":{"name":"natural forest","description":"A forest that is grown without human intervention.\r\n"},"63":{"name":"natural forests","description":"A forest that is grown without human intervention.\r\n"},"82":{"name":"persistent gain","description":"Forests that have experienced one gain event from 2001 to 2016.\r\n"},"13":{"name":"persistent loss and gain","description":"Forests that have experienced one loss or one gain event from 2001 to 2016."},"97":{"name":"plantation","description":"An area in which trees have been planted, generally for commercial purposes.\u0026nbsp;\r\n"},"93":{"name":"plantations","description":"An area in which trees have been planted, generally for commercial purposes.\u0026nbsp;\r\n"},"88":{"name":"planted","description":"A forest composed of trees that have been deliberately planted and\/or seeded by humans.\r\n"},"14":{"name":"planted forest","description":"A forest composed of trees that have been deliberately planted and\/or seeded by humans.\r\n"},"73":{"name":"planted forests","description":"A forest composed of trees that have been deliberately planted and\/or seeded by humans.\r\n"},"15":{"name":"primary forest","description":"Old-growth forests that are typically high in carbon stock and rich in biodiversity. The GFR uses a humid tropical primary rainforest data set, representing forests in the humid tropics that have not been cleared in recent years.\r\n"},"64":{"name":"primary forests","description":"Old-growth forests that are typically high in carbon stock and rich in biodiversity. The GFR uses a humid tropical primary rainforest data set, representing forests in the humid tropics that have not been cleared in recent years.\r\n"},"58":{"name":"production forest","description":"A forest where the primary management objective is to produce timber, pulp, fuelwood, and\/or nonwood forest products."},"89":{"name":"production forests","description":"A forest where the primary management objective is to produce timber, pulp, fuelwood, and\/or nonwood forest products.\r\n"},"87":{"name":"seminatural","description":"A managed forest modified by humans, which can have a different species composition from surrounding natural forests.\r\n"},"59":{"name":"seminatural forests","description":"A managed forest modified by humans, which can have a different species composition from surrounding natural forests. "},"96":{"name":"shifting agriculture","description":"Temporary loss or permanent deforestation due to small- and medium-scale agriculture.\r\n"},"103":{"name":"surface roughness","description":"Surface roughness of forests creates\u0026nbsp;turbulence that slows near-surface winds and cools the land as it lifts heat from low-albedo leaves and moisture from evapotranspiration high into the atmosphere and slows otherwise-drying winds. \r\n"},"17":{"name":"tree cover","description":"All vegetation greater than five meters in height and may take the form of natural forests or plantations across a range of canopy densities. Unless otherwise specified, the GFR uses greater than 30 percent tree canopy density for calculations.\r\n"},"71":{"name":"tree cover canopy density is low","description":"Less than 30 percent tree canopy density.\r\n"},"60":{"name":"tree cover gain","description":"The establishment of tree canopy in an area that previously had no tree cover. Tree cover gain may indicate a number of potential activities, including natural forest growth or the crop rotation cycle of tree plantations."},"18":{"name":"tree cover loss","description":"The removal or mortality of tree cover, which can be due to a variety of factors, including mechanical harvesting, fire, disease, or storm damage. As such, loss does not equate to deforestation. "},"19":{"name":"tree plantation","description":"An agricultural plantation of fast-growing tree species on short rotations for the production of timber, pulp, or fruit.\r\n"},"72":{"name":"tree plantations","description":"An agricultural plantation of fast-growing tree species on short rotations for the production of timber, pulp, or fruit.\r\n"},"85":{"name":"trees outside forests","description":"Trees found in urban areas, alongside roads, or within agricultural land\u0026nbsp;are often referred to as Trees Outside Forests (TOF).\u202f\r\n"}}}