Gis For Agriculture Esri-Books Pdf

GIS for Agriculture Esri
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Table of Contents,What Is GIS 1,GIS for Agriculture 3. Agribusiness Grows with Crop Specific Maps 5,Better Crop Estimates in South Africa 9. Cyclone Nargis Leaves Its Mark on the Map 15,Purdue University Students Visualize Soils and. Landscapes with GIS 19, In China GIS Based Land Registry Aims to Protect Farming. Rights and Enhance Food Security 23,What Is GIS, Making decisions based on geography is basic to human thinking Where shall we go what.
will it be like and what shall we do when we get there are applied to the simple event of going. to the store or to the major event of launching a bathysphere into the ocean s depths By. understanding geography and people s relationship to location we can make informed decisions. about the way we live on our planet A geographic information system GIS is a technological. tool for comprehending geography and making intelligent decisions. GIS organizes geographic data so that a person reading a map can select data necessary for. a specific project or task A thematic map has a table of contents that allows the reader to add. layers of information to a basemap of real world locations For example a social analyst might. use the basemap of Eugene Oregon and select datasets from the U S Census Bureau to add. data layers to a map that shows residents education levels ages and employment status With. an ability to combine a variety of datasets in an infinite number of ways GIS is a useful tool for. nearly every field of knowledge from archaeology to zoology. A good GIS program is able to process geographic data from a variety of sources and integrate. it into a map project Many countries have an abundance of geographic data for analysis. and governments often make GIS datasets publicly available Map file databases often come. included with GIS packages others can be obtained from both commercial vendors and. government agencies Some data is gathered in the field by global positioning units that attach a. location coordinate latitude and longitude to a feature such as a pump station. GIS maps are interactive On the computer screen map users can scan a GIS map in any. direction zoom in or out and change the nature of the information contained in the map. They can choose whether to see the roads how many roads to see and how roads should. be depicted Then they can select what other items they wish to view alongside these roads. such as storm drains gas lines rare plants or hospitals Some GIS programs are designed. to perform sophisticated calculations for tracking storms or predicting erosion patterns GIS. applications can be embedded into common activities such as verifying an address. From routinely performing work related tasks to scientifically exploring the complexities of our. world GIS gives people the geographic advantage to become more productive more aware. and more responsive citizens of planet Earth,GIS BEST PRACTICES 1 WWW ESRI COM AGRICULTURE. GIS for Agriculture, Balancing the inputs and outputs on a farm is fundamental to its success and profitability The. ability of GIS to analyze and visualize agricultural environments and workflows has proved to be. very beneficial to those involved in the farming industry. From mobile GIS in the field to the scientific analysis of production data at the farm manager s. office GIS is playing an increasing role in agriculture production throughout the world by helping. farmers increase production reduce costs and manage their land more efficiently. While natural inputs in farming cannot be controlled they can be better understood and. managed with GIS applications such as crop yield estimates soil amendment analyses and. erosion identification and remediation,GIS BEST PRACTICES 3 WWW ESRI COM AGRICULTURE. Agribusiness Grows with Crop Specific Maps,U S Farmland Data Layer Available for Download. By Jessica Wyland ESRI writer, Crop specific maps created by combining survey data and satellite images literally provides.
the lay of the land for farmers and agribusinesses such as seed and fertilizer companies Corn. soybean rice and cotton crops grown in the Corn Belt and Mississippi River Delta areas of. the United States are mapped extensively in the Cropland Data Layer CDL now available for. download or on DVD from the United States Department of Agriculture National Agricultural. Statistics Service USDA NASS, The state of Washington is shown in the NASS 2007 Cropland Data Layer with. USDA Farm Service Agency with Common Land Unit data overlay. GIS BEST PRACTICES 5 WWW ESRI COM AGRICULTURE, Geographic information system GIS software from ESRI is used to prepare and manage. agricultural data and build geospatial snapshots of cropland. There are many possible uses for the Cropland Data Layer inside and outside the farming. community said Rick Mueller a GIS expert with NASS CDL can be leveraged in a GIS. to perform spatial queries against other enterprise GIS data layers It can be extracted and. masked out so public or private entities can focus solely on their own interests. Enhancing a GIS with land cover data layers has proved helpful to crop growers associations. crop insurance companies seed and fertilizer companies farm chemical companies libraries. universities federal and state governments and value added remote sensing GIS companies. Agribusinesses refer to the data to site new facilities for retail supplies and equipment route. transportation of crops and goods and forecast harvests and sales A fertilizer company for. example can use CDL to better anticipate how much fertilizer will be needed in specific regions. The data is also used by pesticide companies to study pest migration trends and pesticide. applications It is used by farmers and conservationists to perform risk assessment of wildlife. habitat crop stress and blight locations Educators determine research locations based on crop. density distribution and develop ecosystem models with CDL figures and images. For each state in the Corn Belt and Mississippi River Delta areas CDL provides the categorized. raster data along with accuracy statistics and metadata by state CDL is a unique product that. provides annual updates of the agricultural landscape The entire inventory of CDL products is. available for download from the Geospatial Data Gateway. ArcGIS Desktop software from ESRI makes it possible for us to create resourceful maps to. identify the spatial extent and associated acreage of the crops grown in these specific states. said Mueller,JUNE 2009 6 GIS FOR AGRICULTURE, A combination of the Washington 2007 Cropland Data Layer with raw AWiFS data taken on. July 25 2007 shown with Common Land Unit overlay using the swipe function. The band combination displayed is 3 4 2, ESRI s ArcMap application is also used to create finished products detailed informative maps. of U S cropland for agricultural stakeholders GIS specialists use ArcMap to create maps that. are distributed to NASS field offices where they are used at trade shows and distributed to. customers ArcMap is also used to create the CDL Web Atlas where each county within a state. is plotted with the location of acreage planted with corn oats winter wheat peas and other. crops and encapsulated in a single PDF file The increasing functionality of ESRI s desktop. products has enabled the delivery of large scale geospatial datasets like CDL to desktops. Each year the CDL program focuses on highly intensive agricultural regions to produce digital. categorized georeferenced output products NASS uses ArcGIS Desktop to manage and edit. administrative ground reference data such as the Common Land Unit CLU from the USDA. GIS BEST PRACTICES 7 WWW ESRI COM AGRICULTURE, Farm Service Agency The CLU data is a survey based record of where specific crops are.
grown That information is combined with satellite based remote sensing imagery to produce. supervised classifications of each field within the state Satellite imagery is provided by the. Resourcesat 1 Advanced Wide Field Sensor AWiFS launched in 2003 by the India Space. Research Organization,The CDL program was,created in 1997 as an. offshoot of the NASS,Acreage Estimation,Program established to. sync satellite images with,farmer reported surveys. Research and development,have been ongoing since,the mid 1970s to deliver. real time estimates of,acreage at the state and,county levels using remote.
sensing science Acreage,estimates are used for,legislation and government. programs pertaining to,agriculture The CDL,program is producing real. time acreage estimates, A raw AWiFS image dated July 25 2007 is shown with Common Land Unit data overlay. over the Midwest and The band combination displayed is 3 4 2. Mississippi River Delta areas, for crop year 2008 and delivering a unique geospatial product to the GIS and remote sensing. user community, For more information or to download the Cropland Data Layer visit www nass usda gov.
research Cropland SARS1a htm For more information about GIS for agriculture visit www esri. com industries agriculture, Reprinted from the September 2008 issue of ArcWatch magazine. JUNE 2009 8 GIS FOR AGRICULTURE,Better Crop Estimates in South Africa. Integrating GIS with other business systems,By Annalie Fourie GIS Specialist SiQ. Reliable crop information is vital to the functioning of grain markets It is used to inform. decisions on planting marketing and policy Applying GIS to the process of preparing crop. estimates has improved accuracy while lowering costs. More accurate and reliable crop,estimates help reduce uncertainty in. the grain industry The South African,Department of Agriculture Crop.
Estimates Committee was tasked,with producing crop estimates for. South Africa on a monthly basis,To perform this task the committee. receives data from various input,SiQ a member of the National. Crop Statistics Consortium NCSC,uses statistical methods to provide. inputs to the committee Since,2002 crop information provided.
by producers has been used for,statistical analysis However. problems caused by producers who,don t provide complete information. combined with a greater emphasis The ArcPad interface used for data capturing in the field The red squares. on improving statistical accuracy and indicate the randomly selected sample points displayed on a background of. efficiency led to the development of digitized crop field boundaries. an alternative system,GIS BEST PRACTICES 9 WWW ESRI COM AGRICULTURE. The Producer Independent Crop Estimate System PICES was developed in 2005. Implemented after a successful pilot study conducted in the Gauteng province PICES uses. crop field boundaries digitized from satellite imagery with a point frame sampling system to. objectively estimate the area planted with grain crops. The PICES process consists of the following steps,1 Obtain satellite imagery. 2 Digitize crop field boundaries from satellite imagery. 3 Design the point frame and select random sample point. 4 Use aerial survey sample points to capture crop data. 5 Perform statistical analysis, Obtaining Satellite Satellite imagery for the project is made available by the South African government through the.
Imagery Department of Agriculture SPOT Image Spot 5 satellite imagery with a 2 5 meter resolution is. obtained from the department and is used as the base layer for digitizing. Digitizing Crop Field This is done in ArcMap at a scale of 1 10 000 Comprehensive quality control measures are part. Boundaries from the of the digitizing process to ensure clean accurate data of high quality Detailed metadata is. Satellite Imagery captured in ArcCatalog as soon as the dataset for a province has been finalized This metadata. is updated whenever changes are made to the dataset All nine provinces of South Africa have. been digitized a total of approximately 12 965 000 hectares The updating schedule and. procedures ensure that the dataset remains current. Designing the, Point Frame and In the next step sample points are randomly selected to represent potential cropped fields. Selecting Random These points will be surveyed in the field A point grid of 45 meters by 45 meters is set up for the. Sample Points total provincial area Grid points located outside field boundaries are removed from the sample. population because these points are unlikely to locate crops. Digitized fields are stratified based on the probability of finding a crop The core strata used are. high medium and low cultivation High medium and low refer to the densities of fields within. any given area as well as the presence of pivot irrigation and small scale farming Stratification. is done to increase sampling efficiency More sample points are used in strata where there is a. higher likelihood of finding crops of interest This will obtain the most useful data within budget. JUNE 2009 10 GIS FOR AGRICULTURE, constraints and keep the Coefficient of Variance CV as low as possible CV is the ratio of. standard deviation to the mean it is used when comparing datasets with different units or widely. differing means, An example of digitized crop field boundaries and the SPOT Image Spot 5 satellite imagery. used for digitizing the boundaries, The grid points are selected per stratum and exported to a Microsoft SQL Server database. These points are sorted systematically from west to east and north to south. products has enabled the delivery of large scale for crop year 2008 and delivering a unique For more information about GIS for agriculture

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