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2016-2023 年美国农业部作物序列边界
作物序列边界（CSB）是与美国农业部经济研究局合作开发的，它提供了美国毗连地区的田间边界、作物种植面积和作物轮作的估计数据。该数据集利用卫星图像和其他公共数据，并且是开放源码的，使用户能够对美国种植的商品进行面积和统计…简介
2016-2023 年美国农业部作物序列边界
作物序列边界（CSB）是与美国农业部经济研究局合作开发的，它提供了美国毗连地区的田间边界、作物种植面积和作物轮作的估计数据。该数据集利用卫星图像和其他公共数据，并且是开放源码的，使用户能够对美国种植的商品进行面积和统计分析。它为农民的种植决策和实践提供了宝贵的见解。
NASS 需要一个有代表性的田间数据集来预测玉米-大豆等常见轮作的作物种植情况，而经济研究局 (ERS) 则利用 CSB 来研究耕作和覆盖种植等农场管理方法随时间推移而发生的变化。CSB 数据集代表特定时间范围内的非机密单一作物田边界。它不包括个人身份信息、所有权边界或地块。数据来源于卫星图像和公开信息，不包括生产者或农业服务局等机构提供的信息。如需访问和了解更多信息，请访问CSB 网站。访问 CSB GitHub 代码库，查看与数据集相关的元数据。
https://github.com/USDA-REE-NASS/crop-sequence-boundaries/tree/main/csb-project
数据集说明
作物序列边界（CSB）是通过地理空间算法生成的田间多边形，源自 NASS 耕地数据层（CDL）。这些多边形实体满足了依赖网格数据集的应用需求，需要分析单位来简化数据汇总。CSB 的主要目标是提供横跨美国 48 个毗连区的全面覆盖范围，确保多年数据的精确性和可复制性。这些结构是通过合并指定时间范围内的历史 CDL 而形成的，同时还整合了公路和铁路网络，以准确描绘这些模拟田地内的作物序列。该数据集适用于 2016 年至 2023 年的生长季节。
数据集结构与预处理
数据集作为地球引擎中的特征集提供给每个州，1623 个特征集代表 2016-2023 年的生长季节。州名是特征集合名称的一部分。虽然可能没有必要，但可以将它们合并为一个集合，我创建了这个集合，供那些希望在合并的特征集合上运行一些分析的人使用。
单一代码
///
/$$$$$$$/ Create menus for states and counties $$$$$$/
---------- Author: Dr. Zhe Li -------------
///=================== USDA NASS SARS ===================/
//////
//$$$$$$$/ Host and Query CSBs $$$$$$/
---------- Author: Arthur Rosales -------------
///=================== USDA NASS SARS ===================/
////*Global Variable*/var csb23;
var empty1;
var fills1;
var filledOutlines1;
var empty2;
var fills2;
var image1;/*---------------------LOAD State and County features ----------------------------*/
var us_states = ee.FeatureCollection("TIGER/2018/States"),counties = ee.FeatureCollection("TIGER/2018/Counties");/*-----------------------LOAD CSB FILES FROM ASSETS ------------------------------*/var styling = {color: 'red',fillColor: '00000000',width: 2
};
var styling_co = {color: 'white',fillColor: '00000000',width: 0.5
};var csbal23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBAL1623");var csbar23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBAR1623");var csbaz23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBAZ1623");var csbca23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBCA1623");var csbco23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBCO1623");var csbct23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBCT1623");var csbde23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBDE1623");var csbga23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBGA1623");var csbfl23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBFL1623");var csbia23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBIA1623");var csbid23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBID1623");var csbil23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBIL1623");var csbin23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBIN1623");var csbks23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBKS1623");var csbky23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBKY1623");var csbla23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBLA1623");var csbma23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBMA1623");var csbmd23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBMD1623");var csbme23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBME1623");var csbmi23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBMI1623");var csbmn23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBMN1623");var csbmo23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBMO1623");var csbms23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBMS1623");var csbmt23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBMT1623");var csbne23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBNE1623");var csbnh23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBNH1623");var csbnj23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBNJ1623");var csbnm23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBNM1623");var csbnv23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBNV1623");var csbny23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBNY1623");var csbnc23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBNC1623");var csbnd23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBND1623");var csboh23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBOH1623");var csbok23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBOK1623");var csbor23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBOR1623");var csbpa23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBPA1623");var csbri23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBRI1623");var csbsc23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBSC1623");var csbsd23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBSD1623");var csbtn23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBTN1623");var csbtx23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBTX1623");var csbut23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBUT1623");var csbvt23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBVT1623");var csbva23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBVA1623");var csbwa23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBWA1623");var csbwv23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBWV1623");var csbwi23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBWI1623");var csbwy23 = ee.FeatureCollection("projects/nass-csb/assets/csb1623/CSBWY1623");var istate = {Alabama: [csbal23, 'CDL2023', 'CDL2022', 'CDL2021', 'CDL2020', 'CDL2019', 'CDL2018', 'CDL2017', 'CDL2016', 2023, "01", 'ACRES', 'CROP23', 'CROP22', 'CROP21', 'CROP20', 'CROP19', 'CROP18', 'CROP17', 'CROP16'],Arkansas: [csbar23, 'CDL2023', 'CDL2022', 'CDL2021', 'CDL2020', 'CDL2019', 'CDL2018', 'CDL2017', 'CDL2016', 2023, "05", 'ACRES', 'CROP23', 'CROP22', 'CROP21', 'CROP20', 'CROP19', 'CROP18', 'CROP17', 'CROP16'],Arizona: [csbaz23, 'CDL2023', 'CDL2022', 'CDL2021', 'CDL2020', 'CDL2019', 'CDL2018', 'CDL2017', 'CDL2016', 2023, "04", 'ACRES', 'CROP23', 'CROP22', 'CROP21', 'CROP20', 'CROP19', 'CROP18', 'CROP17', 'CROP16'],California: [csbca23, 'CDL2023', 'CDL2022', 'CDL2021', 'CDL2020', 'CDL2019', 'CDL2018', 'CDL2017', 'CDL2016', 2023, "06", 'ACRES', 'CROP23', 'CROP22', 'CROP21', 'CROP20', 'CROP19', 'CROP18', 'CROP17', 'CROP16'],Colorado: [csbco23, 'CDL2023', 'CDL2022', 'CDL2021', 'CDL2020', 'CDL2019', 'CDL2018', 'CDL2017', 'CDL2016', 2023, "08", 'ACRES', 'CROP23', 'CROP22', 'CROP21', 'CROP20', 'CROP19', 'CROP18', 'CROP17', 'CROP16'],Connecticut: [csbct23, 'CDL2023', 'CDL2022', 'CDL2021', 'CDL2020', 'CDL2019', 'CDL2018', 'CDL2017', 'CDL2016', 2023, "09", 'ACRES', 'CROP23', 'CROP22', 'CROP21', 'CROP20', 'CROP19', 'CROP18', 'CROP17', 'CROP16'],Delaware: [csbde23, 'CDL2023', 'CDL2022', 'CDL2021', 'CDL2020', 'CDL2019', 'CDL2018', 'CDL2017', 'CDL2016', 2023, "10", 'ACRES', 'CROP23', 'CROP22', 'CROP21', 'CROP20', 'CROP19', 'CROP18', 'CROP17', 'CROP16'],Florida: [csbfl23, 'CDL2023', 'CDL2022', 'CDL2021', 'CDL2020', 'CDL2019', 'CDL2018', 'CDL2017', 'CDL2016', 2023, "12", 'ACRES', 'CROP23', 'CROP22', 'CROP21', 'CROP20', 'CROP19', 'CROP18', 'CROP17', 'CROP16'],Georgia: [csbga23, 'CDL2023', 'CDL2022', 'CDL2021', #
