National Forest Estate Subcompartments England 2019

All organisations hold information about the core of their business. The Forestry Commission holds information on trees and forests. We use this information to help us run our business and make decisions.

The role of the Forest Inventory (the Sub-compartment Database (SCDB) and the stock maps) is to be our authoritative data source, giving us information for recording, monitoring, analysis and reporting.

Through this it supports decision-making on the whole of the FC estate.
Information from the Inventory is used by the FC, wider government, industry and the public for economic, environmental and social forest-related decision-making. Furthermore, it supports forestrelated national policy development and government initiatives, and helps us meet our national and international forest-related reporting responsibilities.

Information on our current forest resource, and the future expansion and availability of wood products from our forests, is vital for planners both in and outside the FC. It is used when looking at the development of processing industries, regional infrastructure, the effect upon communities of our actions, and to prepare and monitor government policies.

The Inventory (SCDB and stock maps), with ‘Future Forest Structure’ and the ‘rollback’ functionality of Forester, will help provide a definitive measure of trends in extent, structure, composition, health, status, use, and management of all FC land holdings. We require this to meet national and international commitments, to report on the sustainable management of forests as well as to help us through the process of business and Forest Design Planning. As well as helping with the above, the SCDB helps us address detailed requests from industry, government, non-government organisations and the public for information on our estate.

The FC’s growing national and international responsibilities and the requirements for monitoring and reporting on a range of forest statistics have highlighted the technical challenges we face in providing consistent, national level data. A well kept and managed SCDB and GIS (Geographical Information System - Forester) will provide the best solution for this and assist Countries in evidence-based policy making.

Looking ahead at international reporting commitments; one example of an area where requirements look set to increase will be reporting on our work to combat climate change and how our estate contributes to carbon sequestration.
We have put in place processes to ensure that at least the basics of our inventory are covered:

1. The inventory of forests;
2. The land-uses;
3. The land we own ( Deeds);
4. The roads we manage.

We depend on others to allow us to manage the forests and to provide us with funds and in doing so we need to be seen to be responsible and accountable for our actions. A foundation of achieving this is good record keeping.

A sub compartment should be recognisable on the ground. It will be similar enough in land use, species or habitat composition, yield class, age, condition, thinning history etc. to be treated as a single unit. They will generally be contiguous in nature and will not be split by roads, rivers, open space etc. Distinct boundaries are required, and these will often change as
crops are felled, thinned, replanted and resurveyed.

In some parts of the country foresters used historical and topographical features to delineate sub-compartment boundaries, such as hedges, walls and escarpments. In other areas no account of the history and topography of the site was taken, with field boundaries, hedges, walls, streams etc. being subsumed into the sub-compartment. Also, these features may or may not appear on the OS backdrop, again this was dependent on the staff involved and what they felt was relevant to the map. The main point is that, as managers we may find
such obvious features in the middle of a sub-compartment when nothing is indicated on the stock map, while the same thing would be indicated elsewhere.

Attributes;

FOREST Cost centre Nos.
COMPARTMNT Compartemnt Nos.
SUBCOMPT Sub-compartment letter
SUBCOMPTID Unique identifier
BLOCK Block nos.
PRILANDUSE Defined Land Use of primary component
PRI_LUCODE Coded Land Use of primary component
PRISPECIES Defined Primary component tree species
PRI_SPCODE Coded Primary component tree species
PRI_PLYEAR prim. component year planted
PRIPCTAREA Prim. component %Area of sub-compartment
SECLANDUSE Defined Land Use of secondary component
SEC_LUCODE Coded Land Use of secondary component
SECSPECIES Defined Secondary component tree species
SEC_SPCODE Coded Secondary component tree species
SEC_PLYEAR Secondary component year planted
SECPCTAREA Secondary component %Area of sub-compartment
TERLANDUSE Defined Land Use of tertiary component
TER_LUCODE Coded Land Use of tertiary component
TERSPECIES Defined Tertiary component tree species
TER_SPCODE Coded Tertiary component tree species
TER_PLYEAR Tertiary component year planted
TERPCTAREA Tertiary component %Area of sub-compartment
CULTIVATN A defined indication of the way the sub-compartment has been prepared for establishment.
CULT_CODE A coded indication of the way the sub-compartment has been prepared for establishment.
PRIHABITAT Defined Primary component UK Biodiversity Action Plan (UKBAP) Broad and Priority Habitats.
PRIHABCODE Coded Primary component UK Biodiversity Action Plan (UKBAP) Broad and Priority Habitats.
SECHABITAT Defined Secondary component UK Biodiversity Action Plan (UKBAP) Broad and Priority Habitats.
SECHABCODE Coded secondary component UK Biodiversity Action Plan (UKBAP) Broad and Priority Habitats.
TERHABITAT Defined Tertiary component UK Biodiversity Action Plan (UKBAP) Broad and Priority Habitats.
TERHABCODE Coded tertiary component UK Biodiversity Action Plan (UKBAP) Broad and Priority Habitats.
PRI_YIELD Primary component Yield Class index of the potential mean annual volume growth rate
SEC_YIELD Secondary component Yield Class index of the potential mean annual volume growth rate
TER_YIELD Tertiary component Yield Class index of the potential mean annual volume growth rate Attribution statement: Contains Forestry Commission information licensed under the Open Government Licence v3.0.

所有组织均持有关于其业务核心的信息。林业委员会保存有关树木和森林的信息。我们利用这些信息来协助我们开展业务并做出决策。森林资源调查（包括子区数据库（SCDB）和库存地图）的作用是成为我们的权威数据源，为我们提供记录、监控、分析和报告所需的信息。通过这一机制，它支持对整个林业委员会地产的决策制定。库存信息被林业委员会、更广泛的政府、行业和公众用于与森林相关的经济、环境和社交决策制定。此外，它支持森林相关国家政策的制定和政府倡议，并帮助我们履行国家及国际森林相关报告责任。关于我们当前森林资源以及森林木材产品的未来扩展和可用性的信息，对于林业委员会内部及外部的规划者至关重要。这些信息在审视加工工业的发展、区域基础设施的影响、我们行动对社区的影响，以及制定和监控政府政策时均被使用。库存（SCDB和库存地图），结合‘未来森林结构’和Forester的‘回滚’功能，将有助于提供对所有林业委员会土地持有范围内范围、结构、组成、健康状况、状况、用途和管理趋势的权威衡量。我们需此信息以满足国家及国际承诺，报告森林可持续管理，并协助我们进行商业和森林设计规划。除上述内容外，SCDB帮助我们应对来自行业、政府、非政府组织及公众对我们地产信息的具体请求。林业委员会日益增长的国内外责任，以及对一系列森林统计数据进行监控和报告的要求，凸显了我们在提供一致、全国性数据方面所面临的技术挑战。精心维护和管理的SCDB和地理信息系统（GIS - Forester）将提供最佳解决方案，并协助各国进行基于证据的政策制定。展望未来，在国际报告承诺方面，一个需求预计将增加的领域将是关于我们应对气候变化的工作报告以及我们的地产如何贡献于碳汇。我们已建立流程以确保至少我们的库存的基本要素得到覆盖：1. 森林库存；2. 土地用途；3. 我们拥有的土地（契约）；4. 我们管理的道路。我们依赖他人允许我们管理森林并提供资金，在此过程中，我们需要展现出我们的行动责任和问责制。实现这一目标的基础是良好的记录保存。子区应在地面可识别。它们在土地利用、物种或栖息地组成、产量等级、年龄、状况、疏伐历史等方面足够相似，可以被视为单一单元。它们通常在自然上连续，不会被道路、河流、开阔空间等分割。需要明确的边界，这些边界通常在砍伐、疏伐、重新种植和重新测量作物时发生变化。在某些地区，林业工作者使用历史和地形特征来划定子区边界，如树篱、墙壁和峭壁。在其他地区，未考虑场地的历史和地形，田地边界、树篱、墙壁、溪流等被纳入子区。此外，这些特征可能在OS背景图上出现或不出现，这取决于工作人员的看法以及他们认为对地图相关的内容。主要观点是，作为管理者，我们可能会在子区中发现这样的明显特征，而在库存地图上却没有任何指示，而在其他地方则有指示。属性包括：森林、成本中心编号、区、区编号、子区、子区字母、子区ID、地块编号、主要土地利用定义、主要土地利用编码、主要组成部分树木物种定义、主要组成部分树木物种编码、主要组成部分种植年份、主要组成部分面积百分比、次要土地利用定义、次要土地利用编码、次要组成部分树木物种定义、次要组成部分树木物种编码、次要组成部分种植年份、次要组成部分面积百分比、三级土地利用定义、三级土地利用编码、三级组成部分树木物种定义、三级组成部分树木物种编码、三级组成部分种植年份、三级组成部分面积百分比、耕作方式定义、耕作方式编码、主要组成部分英国生物多样性行动计划（UKBAP）广义和优先栖息地定义、主要组成部分英国生物多样性行动计划（UKBAP）广义和优先栖息地编码、次要组成部分英国生物多样性行动计划（UKBAP）广义和优先栖息地定义、次要组成部分英国生物多样性行动计划（UKBAP）广义和优先栖息地编码、三级组成部分英国生物多样性行动计划（UKBAP）广义和优先栖息地定义、三级组成部分英国生物多样性行动计划（UKBAP）广义和优先栖息地编码、主要组成部分产量等级指数、次要组成部分产量等级指数、三级组成部分产量等级指数。归属声明：包含林业委员会信息，根据开放政府许可v3.0授权。