[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-289738-105":59,"doc-detail-289738-en":131},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":124,"head_meta":126,"extra_data":128,"updated_unix":130},105,"en","chapter-14-swat-input-data-plantdat","CHAPTER 14 - SWAT INPUT DATA - PLANT.DAT","","Chapter 14 explains the SWAT plant growth database file PLANT.DAT and how plant species store the information needed to simulate plant development. The text describes that the distributed database includes parameters for most common plant species and advises contacting the SWAT development team for plants or land uses not included. It then details key land cover/plant variables in file order, including ICNUM and CPNM codes and the land cover classification IDC, plus group-specific modeling behaviors. It further covers the BIO_E parameter and summarizes how radiation-use efficiency is measured and calculated.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/chapter-14-swat-input-data-plantdat/289738/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/chapter-14-swat-input-data-plantdat/289738.png","ImageObject",300,407,{"name":92,"@type":93},"Oliver","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-08","2026-09-17",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",11,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What does the PLANT.DAT file provide in SWAT?","Question",{"text":113,"@type":114},"PLANT.DAT stores plant-species parameters needed to simulate plant growth. These parameters support modeling for land cover and plant development within SWAT.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"How are plants uniquely identified in the database?",{"text":118,"@type":114},"Each land cover/plant uses a unique numeric code ICNUM. This code is required to identify the land cover to be modeled in the management file.",{"name":120,"@type":111,"acceptedAnswer":121},"What is BIO_E and how is radiation-use efficiency determined?",{"text":122,"@type":114},"BIO_E represents the potential or unstressed growth rate per unit of intercepted photosynthetically active radiation, related to radiation-use efficiency (RUE). RUE is measured by repeatedly assessing intercepted PAR and aboveground biomass on non-stressed plants, typically using multiple measurements across the growing season.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},289738,1789636778,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":140,"language":141,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":142,"faqs":143,"seo_title":144,"seo_description":67,"update_tm":130,"read_time":145,"preview_page_count":4},8796095461610,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","CHAPTER 14  \nSWAT INPUT DATA:  \nPLANT.DAT  \nInformation required to simulate plant growth is stored by plant species in the plant growth database file. This database file is supplied with the model. The plant growth database distributed with SWAT includes parameters for most of the common plant species. If a user needs to model a land use or plant not included in the database, please feel free to contact the SWAT development team for assistance in determining plant parameters. Appendix A documents the source of parameter values in the distributed database file.  \nFollowing is a brief description of the variables in the land cover/plant growth database file. They are listed in the order they appear within the file.  \n Variable name Definition   \nICNUM Land cover/plant code.  \nThe different plants listed in the plant growth database must have unique values for ICNUM. ICNUM is the numeric code used in the management file to identify the land cover to be modeled.  \nRequired.  \nCPNM A four character code to represent the land cover/plant  \nname.  \nThe 4-letter codes in the plant growth and urban databases are used by the GIS interfaces to link land use/land cover maps to SWAT plant types. This code is printed to the output files.  \nWhen adding a new plant species or land cover category, the four letter code for the new plant must be unique.  \nRequired.  \nIDC Land cover/plant classification:  \n1 warm season annual legume  \n2 cold season annual legume  \n3 perennial legume  \n4 warm season annual  \n5 cold season annual  \n6 perennial  \n7 trees  \nProcesses modeled differently for the 7 groups are:  \n1 warm season annual legume  \n• simulate nitrogen fixation  \n• root depth varies during growing season due to root growth  \n2 cold season annual legume  \n• simulate nitrogen fixation  \n• root depth varies during growing season due to root growth  \n• fall-planted land covers will go dormant when daylength is less than the threshold daylength  \n Variable name Definition   \nIDC, cont.  \nDESCRIPTION  \nBIO_E  \n3 perennial legume  \n• simulate nitrogen fixation  \n• root depth always equal to the maximum allowed for the plant species and soil  \n• plant goes dormant when daylength is less than the threshold daylength  \n4 warm season annual  \n• root depth varies during growing season due to root growth  \n5 cold season annual  \n• root depth varies during growing season due to root growth  \n• fall-planted land covers will go dormant when daylength is less than the threshold daylength  \n6 perennial  \n• root depth always equal to the maximum allowed for the plant species and soil  \n• plant goes dormant when daylength is less than the threshold daylength  \n7 trees  \n• root depth always equal to the maximum allowed for the plant species and soil  \n• partitions new growth between leaves/needles (20%) and woody growth (80%) . At the end of each growing season, a fraction of the biomass is converted to residue  \nRequired.  \n\n| Full land cover/plant name.\u003Cbr>This description is not used by the model and is present to assist the user in differentiating between plant species.\u003Cbr>Optional. |\n| --- |\n| Radiation-use efficiency or biomass-energy ratio ((kg/ha)/(MJ/m2)) .\u003Cbr>Radiation-use efficiency (RUE) is the amount of dry biomass produced per unit intercepted solar radiation. The radiation-use efficiency is assumed to be independent of the plant’s growth stage. BIO_E represents the potential or unstressed growth rate (including roots) per unit of intercepted photosynthetically active radiation. |\n\n Variable name Definition   \nBIO_E, cont. Determination of RUE is commonly performed and a literature review will provide those setting up experiments with numerous examples. The following overview of the methodology used to measure RUE was summarized from Kiniry et al (1998) and Kiniry et al (1999) . To calculate RUE, the amount of photosynthetically active radiation (PAR) intercepted and the mass of aboveground biomass is measured several times throughout a plant’s gro","cbCaiqWHa7FYUrpv","https://ap.wps.com/l/cbCaiqWHa7FYUrpv","pdf",184732,26,"English","# CHAPTER 14 - SWAT INPUT DATA: PLANT.DAT\n## Purpose of the plant growth database\n## Variable list: ICNUM and CPNM\n## Variable list: IDC land cover/plant classification\n## Parameter BIO_E and RUE measurement methodology","[{\"question\":\"What does the PLANT.DAT file provide in SWAT?\",\"answer\":\"PLANT.DAT stores plant-species parameters needed to simulate plant growth. These parameters support modeling for land cover and plant development within SWAT.\"},{\"question\":\"How are plants uniquely identified in the database?\",\"answer\":\"Each land cover/plant uses a unique numeric code ICNUM. This code is required to identify the land cover to be modeled in the management file.\"},{\"question\":\"What is BIO_E and how is radiation-use efficiency determined?\",\"answer\":\"BIO_E represents the potential or unstressed growth rate per unit of intercepted photosynthetically active radiation, related to radiation-use efficiency (RUE). RUE is measured by repeatedly assessing intercepted PAR and aboveground biomass on non-stressed plants, typically using multiple measurements across the growing season.\"}]","CHAPTER 14 - SWAT INPUT DATA - PLANT.DAT | PDF",66]