LANDFIRE (LF), Alat Perencanaan Pengelolaan Sumber Daya dan Kebakaran Lanskap, adalah program bersama antara program pengelolaan kebakaran hutan dari Forest Service, Departemen Pertanian Amerika Serikat, Geological Survey, Departemen Dalam Negeri Amerika Serikat, dan The Nature Conservancy.
Rezim kebakaran historis, interval, dan kondisi vegetasi Landfire (LF) dipetakan menggunakan Alat Pengembangan Dinamika Vegetasi (VDDT).
Data ini mendukung tujuan perencanaan pengelolaan kebakaran hutan dan lahan dalam National Cohesive Wildland Fire Management Strategy, Federal Wildland Fire Management Policy, dan Healthy Forests Restoration Act.
Lapisan Kelas Suksesi (SClass) mengkarakterisasi kondisi vegetasi saat ini sehubungan dengan komposisi spesies vegetasi, penutupan, dan rentang ketinggian kondisi suksesi yang terjadi dalam setiap pengaturan biofisik.
SClass juga dapat merepresentasikan komponen vegetasi yang tidak umum, seperti spesies eksotis, yang tidak ditemukan dalam variabilitas komposisi atau struktural dari keadaan suksesi yang ditentukan untuk lingkungan biofisik.
Kelas suksesi tidak secara langsung mengukur karakteristik bahan bakar vegetasi saat ini, tetapi mewakili kondisi vegetasi dengan dinamika suksesi atau gangguan yang unik, seperti perkembangan struktural atau frekuensi kebakaran.
Untuk menghasilkan SClass, kondisi referensi historis dari status suksesi ini berasal dari model dinamika gangguan dan vegetasi VDDT (Vegetation Dynamics Development Tool) (LF_1.0.0 CONUS hanya menggunakan model dinamika gangguan dan vegetasi LANDSUM).
Area yang terdapat dalam kelas suksesi dibandingkan dengan kondisi referensi historis yang disimulasikan untuk menghitung pengukuran penyimpangan vegetasi, seperti kelas kondisi rezim kebakaran.
SClass digunakan dalam penilaian lanskap.
Set data Kebakaran LANDIFRE mencakup:
Grup Rezim Kebakaran (FRG) dimaksudkan untuk mengkarakterisasi rezim kebakaran historis yang diasumsikan dalam lanskap berdasarkan interaksi antara dinamika vegetasi, penyebaran kebakaran, efek kebakaran, dan konteks spasial
Mean Fire Return Interval (MFRI) mengukur rata-rata periode antara kebakaran di bawah rezim kebakaran historis yang diasumsikan
Gambar Persen Kebakaran Ringan (PLS) mengukur jumlah kebakaran ringan dibandingkan dengan kebakaran dengan tingkat keparahan campuran dan penggantian di bawah rezim kebakaran historis yang diasumsikan dan didefinisikan sebagai rata-rata kurang dari 25 persen pembunuhan bagian atas dalam perimeter kebakaran umum untuk jenis vegetasi tertentu
Lapisan Persentase Kebakaran dengan Tingkat Keparahan Campuran (PMS) mengukur jumlah kebakaran dengan tingkat keparahan campuran relatif terhadap kebakaran dengan tingkat keparahan rendah dan penggantian di bawah rezim kebakaran historis yang diasumsikan, dan didefinisikan sebagai antara 25 dan 75 persen rata-rata kematian bagian atas dalam perimeter kebakaran umum untuk jenis vegetasi tertentu
Lapisan Persentase Kebakaran dengan Tingkat Keparahan Penggantian (PRS) mengukur jumlah kebakaran dengan tingkat keparahan penggantian relatif terhadap kebakaran dengan tingkat keparahan rendah dan campuran dalam rezim kebakaran historis yang diasumsikan, dan didefinisikan sebagai lebih besar dari 75 persen rata-rata kematian total dalam perimeter kebakaran umum untuk jenis vegetasi tertentu
Lapisan Kelas Suksesi (SClass) mengkarakterisasi kondisi vegetasi saat ini sehubungan dengan komposisi spesies vegetasi, penutupan, dan rentang ketinggian kondisi suksesi yang terjadi dalam setiap pengaturan biofisik
Kelas Kondisi Vegetasi (VCC) merepresentasikan kategorisasi sederhana dari
lapisan Perbedaan Vegetasi (VDEP) terkait dan menunjukkan tingkat umum
perbedaan vegetasi saat ini dengan kondisi referensi vegetasi historis yang disimulasikan
Perbedaan Vegetasi (VDep) menunjukkan seberapa berbeda vegetasi saat ini di lanskap dengan perkiraan kondisi historis. VDep didasarkan pada perubahan komposisi spesies, tahap struktural, dan penutupan kanopi.
Band
Ukuran Piksel 30 meter
Band
Nama
Ukuran Piksel
Deskripsi
SClass
meter
Kelas Suksesi
Tabel Class SClass
Nilai
Warna
Deskripsi
1
#a16333
Kelas Suksesi A
2
#38a800
Kelas B Suksesi
3
#c9deab
Kelas Penerus C
4
#fff8a6
Kelas Suksesi D
5
#004a4d
Kelas Suksesi E
6
#a00000
Struktur / Komposisi / Penutupan Vegetasi Asli yang Tidak Khas
7
#ff0000
Vegetasi Eksotis yang Tidak Umum
111
#0000ff
Air
112
#c8ffff
Salju / Es
120
#8400a8
Non-burnable Urban
121
#e8beff
Burnable Urban
131
#4e4e4e
Tersia-Sia
132
#b2b2b2
Vegetasi Jarang
180
#ffff00
Pertanian yang Tidak Dapat Dibakar
181
#ffaa00
Pertanian yang Dapat Dibakar
Properti Gambar
Properti Gambar
Nama
Jenis
Deskripsi
SClass_classes
DOUBLE
Nilai class dari Class Suksesi.
SClass_names
STRING
Nama deskriptif untuk Class Penerus.
Persyaratan Penggunaan
Persyaratan Penggunaan
Data LANDFIRE adalah data domain publik tanpa batasan penggunaan, meskipun jika modifikasi atau turunan produk dibuat, harap tambahkan beberapa pengubah deskriptif ke set data untuk menghindari kebingungan.
Kutipan
Kutipan:
Cara yang disarankan untuk mengutip produk LANDFIRE khusus untuk setiap produk,
sehingga model kutipan disediakan, dengan contoh untuk produk tertentu.
Produser. Tahun rilis. Produk xxxxx:
Nama model individu.
Model dan Deskripsi BpS, Online. LANDFIRE. Washington, DC. Departemen Pertanian Amerika Serikat, Dinas Kehutanan
U.S. Department of the Interior; U.S. Geological Survey; Arlington, VA
The Nature Conservancy (Produser). Tersedia - URL. Tanggal akses.
Contoh Kutipan: LANDFIRE Biophysical Settings. 2018. Lingkungan biofisik 14420:
Padang rumput hamparan pasir Texas Selatan. Dalam: LANDFIRE Biophysical Setting Model: Map zone 36,
[Online]. Dalam: Model dan Deskripsi BpS. Di: LANDFIRE. Washington, DC:
U.S. Department of Agriculture, Forest Service; U.S. Department of the Interior;
U.S. Geological Survey; Arlington, VA: The Nature Conservancy (Produser).
Tersedia: https://www.landfire.gov/bps-models.php [2018, 27 Juni].
Panduan tambahan tentang kutipan produk LANDFIRE dapat ditemukan di sini.
LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, adalah program bersama antara program pengelolaan kebakaran hutan dari Forest Service, U.S. Department of Agriculture, Geological Survey, U.S. Department of the Interior, dan The Nature Conservancy. Rezim kebakaran historis, interval, dan kondisi vegetasi Landfire (LF) dipetakan menggunakan …
[null,null,[],[[["\u003cp\u003eLANDFIRE (LF) is a shared program between the USDA Forest Service, USGS, and The Nature Conservancy providing data for landscape fire and resource management planning.\u003c/p\u003e\n"],["\u003cp\u003eThe Succession Classes (SClass) layer characterizes current vegetation conditions such as species composition, cover, and height, with respect to successional states.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset includes a single band, \u003ccode\u003eSClass\u003c/code\u003e, representing vegetation conditions, and has a 30-meter resolution.\u003c/p\u003e\n"],["\u003cp\u003eLANDFIRE data are public domain and can be used without restrictions, although modifications should be clearly indicated.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset covers the continental United States and is based on historical fire regimes and vegetation dynamics.\u003c/p\u003e\n"]]],[],null,["# LANDFIRE SClass (Succession Classes) v1.4.0\n\nDataset Availability\n: 2014-09-01T00:00:00Z--2014-09-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [U.S. Department of Agriculture's (USDA), U.S. Forest Service (USFS), U.S. Department of the Interior's Geological Survey (USGS), and The Nature Conservancy.](https://landfire.gov/)\n\nTags\n:\n[doi](/earth-engine/datasets/tags/doi) [fire](/earth-engine/datasets/tags/fire) [landfire](/earth-engine/datasets/tags/landfire) [nature-conservancy](/earth-engine/datasets/tags/nature-conservancy) [usda](/earth-engine/datasets/tags/usda) [usgs](/earth-engine/datasets/tags/usgs) [vegetation](/earth-engine/datasets/tags/vegetation) [wildfire](/earth-engine/datasets/tags/wildfire) \n\n#### Description\n\nLANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a\nshared program between the wildland fire management programs of the U.S.\nDepartment of Agriculture's Forest Service, U.S. Department of the Interior's\nGeological Survey, and The Nature Conservancy.\n\nLandfire (LF) Historical fire regimes, intervals, and vegetation conditions\nare mapped using the Vegetation Dynamics Development Tool (VDDT).\nThese data support fire and landscape management planning goals in\nthe National Cohesive Wildland Fire Management Strategy, the Federal Wildland\nFire Management Policy, and the Healthy Forests Restoration Act.\n\nThe Succession Classes (SClass) layer characterizes current vegetation conditions with respect to the vegetation species composition, cover, and height ranges of successional states that occur within each biophysical setting.\nSClass can also represent uncharacteristic vegetation components, such as exotic species, that are not found within the compositional or structural variability of successional states defined for a biophysical setting.\nSuccession classes do not directly quantify fuel characteristics of the current vegetation, but rather represent vegetative states with unique succession or disturbance-related dynamics, such as structural development or fire frequency.\nTo produce SClass, the historical reference conditions of these successional states were derived from the vegetation and disturbance dynamics model VDDT (Vegetation Dynamics Development Tool) (LF_1.0.0 CONUS only used the vegetation and disturbance dynamics model LANDSUM).\nThe area contained in succession classes is compared to the simulated historical reference conditions to calculate measurements of vegetation departure, such as fire regime condition class.\nSClass is used in landscape assessments.\n\nThe LANDIFRE Fire datasets include:\n\n- Fire Regime Groups (FRG) is intended to characterize presumed historical fire regimes within landscapes based on interactions between vegetation dynamics, fire spread, fire effects, and spatial context\n- Mean Fire Return Interval (MFRI) quantifies the average period between fires under the presumed historical fire regime\n- Percent of Low-severity Fire (PLS) image quantifies the amount of low-severity fires relative to mixed- and replacement-severity fires under the presumed historical fire regime and is defined as less than 25 percent average top-kill within a typical fire perimeter for a given vegetation type\n- Percent of Mixed-severity Fire (PMS) layer quantifies the amount of mixed-severity fires relative to low- and replacement-severity fires under the presumed historical fire regime, and is defined as between 25 and 75 percent average top-kill within a typical fire perimeter for a given vegetation type\n- Percent of Replacement-severity Fire (PRS) layer quantifies the amount of replacement-severity fires relative to low- and mixed-severity fires under the presumed historical fire regime, and is defined as greater than 75 percent average top-kill within a typical fire perimeter for a given vegetation type\n- Succession Classes (SClass) layer characterizes current vegetation conditions with respect to the vegetation species composition, cover, and height ranges of successional states that occur within each biophysical setting\n- Vegetation Condition Class (VCC) represents a simple categorization of the associated Vegetation Departure (VDEP) layer and indicates the general level to which current vegetation is different from the simulated historical vegetation reference conditions\n- Vegetation Departure (VDep) indicates how different current vegetation on a landscape is from estimated historical conditions. VDep is based on changes to species composition, structural stage, and canopy closure.\n\n### Bands\n\n\n**Pixel Size**\n\n30 meters\n\n**Bands**\n\n| Name | Pixel Size | Description |\n|----------|------------|--------------------|\n| `SClass` | meters | Succession Classes |\n\n**SClass Class Table**\n\n| Value | Color | Description |\n|-------|---------|--------------------------------------------------------------------|\n| 1 | #a16333 | Succession Class A |\n| 2 | #38a800 | Succession Class B |\n| 3 | #c9deab | Succession Class C |\n| 4 | #fff8a6 | Succession Class D |\n| 5 | #004a4d | Succession Class E |\n| 6 | #a00000 | Uncharacteristic Native Vegetation Cover / Structure / Composition |\n| 7 | #ff0000 | Uncharacteristic Exotic Vegetation |\n| 111 | #0000ff | Water |\n| 112 | #c8ffff | Snow / Ice |\n| 120 | #8400a8 | Non-burnable Urban |\n| 121 | #e8beff | Burnable Urban |\n| 131 | #4e4e4e | Barren |\n| 132 | #b2b2b2 | Sparsely Vegetated |\n| 180 | #ffff00 | Non-burnable Agriculture |\n| 181 | #ffaa00 | Burnable Agriculture |\n\n### Image Properties\n\n**Image Properties**\n\n| Name | Type | Description |\n|----------------|--------|------------------------------------------|\n| SClass_classes | DOUBLE | Class values of the Succession Classes. |\n| SClass_names | STRING | Descriptive names of Succession Classes. |\n\n### Terms of Use\n\n**Terms of Use**\n\nLANDFIRE data are public domain data with no use restrictions, though if modifications\nor derivatives of the product(s) are created, then please add some descriptive modifier\nto the data set to avoid confusion.\n\n### Citations\n\nCitations:\n\n- The suggested way to cite LANDFIRE products is specific to each product,\n so the model for citation is provided, with an example for a particular product.\n Producer. Year released. Product xxxxx:\n - Individual model name.\n - BpS Models and Descriptions, Online. LANDFIRE. Washington, DC. U.S. Department of Agriculture, Forest Service\n - U.S. Department of the Interior; U.S. Geological Survey; Arlington, VA\n - The Nature Conservancy (Producers). Available- URL. Access date.\n\n Example Citation: LANDFIRE Biophysical Settings. 2018. Biophysical setting 14420:\n South Texas sand sheet grassland. In: LANDFIRE Biophysical Setting Model: Map zone 36,\n \\[Online\\]. In: BpS Models and Descriptions. In: LANDFIRE. Washington, DC:\n U.S. Department of Agriculture, Forest Service; U.S. Department of the Interior;\n U.S. Geological Survey; Arlington, VA: The Nature Conservancy (Producers).\n Available: \u003chttps://www.landfire.gov/bps-models.php\u003e \\[2018, June 27\\].\n Additional guidance on citation of LANDFIRE products can be found\n [here](https://landfire.gov/data/citation)\n\n### Explore with Earth Engine\n\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.ImageCollection('LANDFIRE/Fire/SClass/v1_4_0');\n\nvar visualization = {\n bands: ['SClass'],\n};\n\nMap.setCenter(-121.671, 40.699, 5);\n\nMap.addLayer(dataset, visualization, 'SClass');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/LANDFIRE/LANDFIRE_Fire_SClass_v1_4_0) \n[LANDFIRE SClass (Succession Classes) v1.4.0](/earth-engine/datasets/catalog/LANDFIRE_Fire_SClass_v1_4_0) \nLANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. Landfire (LF) Historical fire regimes, intervals, and vegetation conditions are mapped using ... \nLANDFIRE/Fire/SClass/v1_4_0, doi,fire,landfire,nature-conservancy,usda,usgs,vegetation,wildfire \n2014-09-01T00:00:00Z/2014-09-01T00:00:00Z \n17.52 -175.1 71.48 -63.66 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://landfire.gov/)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/LANDFIRE_Fire_SClass_v1_4_0)"]]
