遇见数据集

National Forest Inventory England 2017

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Open Data Forestry2024-11-04 更新2026-05-16 收录
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<p style='box-sizing:border-box; margin:0cm 0cm 0pt; max-width:100%; background-color:rgb(248, 248, 248);'><font face='Avenir Next, Avenir Next'><span style='font-size:16px;'>The NFI woodland map covers all forest and woodland area over 0.5 hectare with a minimum of 20% canopy cover (or the potential to achieve it) and a minimum width of 20 metres, including areas of new planting, clearfell, windblow and restocked areas.</span></font></p><p style='box-sizing:border-box; margin:0cm 0cm 0pt; max-width:100%; background-color:rgb(248, 248, 248);'><font face='Avenir Next, Avenir Next'><span style='font-size:16px;'><br /></span></font></p><p style='box-sizing:border-box; margin:0cm 0cm 0pt; max-width:100%; background-color:rgb(248, 248, 248);'><font face='Avenir Next, Avenir Next'><span style='font-size:16px;'>The woodland map excludes all 'tarmac' roads, rivers and powerlines where the gap in the woodland is greater than 20 meters wide.</span></font></p><p style='box-sizing:border-box; margin:0cm 0cm 0pt; max-width:100%; background-color:rgb(248, 248, 248);'><font face='Avenir Next, Avenir Next'><span style='font-size:16px;'><br /></span></font></p><p style='box-sizing:border-box; margin:0cm 0cm 0pt; max-width:100%; background-color:rgb(248, 248, 248);'><font face='Avenir Next, Avenir Next'><span style='font-size:16px;'> The woodland map is continually updated on an annual basis. The changes in the canopy cover have been identified on remote sensing imagery taken during spring/summer 2016 or colour aerial orthophotographic imagery available at the time of the assessment. Additionally, new planting information from grant schemes and the FE sub-compartment database for the financial year 2017/2018 have been added to the woodland map.</span></font></p>

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