Conterminous United States land cover change patterns 2001-2016 from the 2016 National Land Cover Database.
Conterminous United States land cover change patterns 2001-2016 from the 2016 National Land Cover Database.
复制标题
DOI：
10.1016/j.isprsjprs.2020.02.019
复制
发表时间：
2020-04
影响因子：
12.7
通讯作者：
Riitters, Kurt
中科院分区：
文献类型：
--
作者：
Homer, Collin;Dewitz, Jon;Jin, Suming;Xian, George;Costello, Catherine;Danielson, Patrick;Gass, Leila;Funk, Michelle;Wickham, James;Stehman, Stephen;Auch, Roger;Riitters, Kurt
2016年国家土地覆盖数据库（NLCD）产品套件（可在www.mrlc.gov上获得）包括基于landsat的30米分辨率产品，涵盖美国（us）的土地覆盖、城市不透水性以及树木、灌木、草本和裸地百分比。NLCD 2016的发布提供了2001 - 2016年CONUS土地变化格局的重要新信息。在土地覆盖方面，2001年、2004年、2006年、2008年、2011年、2013年和2016年同时产生了7个时期。产品显示，在大多数土地覆盖类别和时间段，土地覆盖变化都是显著的。土地覆盖产品使用传统NLCD 2011精度评估的现有参考数据进行验证，并应用于NLCD 2016产品线的2011年历元。遗留的和新的NLCD 2011的总体准确度分别为82%和83%（标准误差（SE）为0.5%），显示出总体准确度的小幅但显着提高。在2001年至2016年期间，CONUS景观经历了重大变化，近8%的景观在此期间经历了至少一次土地覆盖变化。近50%的变化涉及森林，这是由采伐、火灾、疾病和虫害等变化因素推动的，这些变化导致森林总体减少，包括内部森林破碎化和丧失加剧。其中农业变化占15.9%，总农业空间面积仅增加了4778 km2，而牧草/干草在此期间大幅减少（7.94%），主要向种植作物过渡。水和湿地变化占变化的15.2%，代表了不同时期高度动态的土地覆盖类别，受降水的影响很大。草地和灌木的变化占总变化的14.5%，其中大部分变化是由火灾引起的。发达变化是最持久和永久的土地变化增加，在15年中增加了近29,000平方公里（占总CONUS变化的5.6%），南部各州的扩张速度远快于大多数北部各州。2001-2006年发达国家的时间变化率是2011-2016年的两倍，反映了美国经济活动的放缓。未来的NLCD计划包括增加监测频率，减少卫星成像和产品交付之间的延迟时间，提高准确性并扩大集成数据库中可用产品的种类。
The 2016 National Land Cover Database (NLCD) product suite (available on www.mrlc.gov), includes Landsat-based, 30 m resolution products over the conterminous (CONUS) United States (U.S.) for land cover, urban imperviousness, and tree, shrub, herbaceous and bare ground fractional percentages. The release of NLCD 2016 provides important new information on land change patterns across CONUS from 2001 to 2016. For land cover, seven epochs were concurrently generated for years 2001, 2004, 2006, 2008, 2011, 2013, and 2016. Products reveal that land cover change is significant across most land cover classes and time periods. The land cover product was validated using existing reference data from the legacy NLCD 2011 accuracy assessment, applied to the 2011 epoch of the NLCD 2016 product line. The legacy and new NLCD 2011 overall accuracies were 82% and 83%, respectively, (standard error (SE) was 0.5%), demonstrating a small but significant increase in overall accuracy. Between 2001 and 2016, the CONUS landscape experienced significant change, with almost 8% of the landscape having experienced a land cover change at least once during this period. Nearly 50% of that change involves forest, driven by change agents of harvest, fire, disease and pests that resulted in an overall forest decline, including increasing fragmentation and loss of interior forest. Agricultural change represented 15.9% of the change, with total agricultural spatial extent showing only a slight increase of 4778 km2, however there was a substantial decline (7.94%) in pasture/hay during this time, transitioning mostly to cultivated crop. Water and wetland change comprised 15.2% of change and represent highly dynamic land cover classes from epoch to epoch, heavily influenced by precipitation. Grass and shrub change comprise 14.5% of the total change, with most change resulting from fire. Developed change was the most persistent and permanent land change increase adding almost 29,000 km2 over 15 years (5.6% of total CONUS change), with southern states exhibiting expansion much faster than most of the northern states. Temporal rates of developed change increased in 2001–2006 at twice the rate of 2011–2016, reflecting a slowdown in CONUS economic activity. Future NLCD plans include increasing monitoring frequency, reducing latency time between satellite imaging and product delivery, improving accuracy and expanding the variety of products available in an integrated database.
登录
查看更多内容
影响因子：
5
作者：
Radeloff, VC;Hammer, RB;McKeefry, JF
通讯作者：
McKeefry, JF
DOI：
10.1016/j.gloenvcha.2018.08.006
发表时间：
2018-11-01
影响因子：
8.9
作者：
Meyfroid, P.;Chowdhury, R. Roy;Verburg, P. H.
通讯作者：
Verburg, P. H.
影响因子：
13.5
作者：
Jin, Suming;Yang, Limin;Xian, George
通讯作者：
Xian, George
影响因子：
5.2
作者：
Byrd, Kristin B.;Flint, Lorraine E.;Sohl, Terry L.
通讯作者：
Sohl, Terry L.
影响因子：
4.9
作者：
Claborn, David;Masuoka, Penny;Keep, Lisa
通讯作者：
Keep, Lisa