Understanding temporal stability:a long-term analysis of USDA ARS watersheds

作     者：Evan J.Coopersmith Michael H.Cosh Patrick J.Starks David D.Bosch Chandra Holifield Collins Mark Seyfried Stan Livingston John Prueger 

作者机构：Soil InsightLLCWashington D.C.USA USDA-Agricultural Research ServiceBeltsville Agricultural Research CenterHydrology and Remote Sensing LaboratoryBeltsvilleUSA USDA-Agricultural Research Service-Grazinglands Research LaboratoryEl RenoUSA USDA-Agricultural Research Service-Southeast Watershed Research LaboratoryTiftonUSA USDA-Agricultural Research Service-Southwest Watershed Research CenterTucsonUSA USDA-Agricultural Research Service-Northwest Watershed Research LaboratoryBoiseUSA USDAAgricultural Research Service-National Soil Erosion Research LaboratoryWest LafayetteUSA USDA-Agricultural Research Service-National Laboratory for Agriculture and EnvironmentAmesUSA 

基　　金：Long-Term Agroecosystem Research U.S. Department of Agriculture, USDA 

出 版 物：《International Journal of Digital Earth》 (国际数字地球学报（英文）)

年 卷 期：2021年第14卷第10期

页      码：1243-1254页

摘      要：The *** of Agriculture’s Agricultural Research Service(USDAARS)maintains seven in situ soil moisture networks throughout the continental United States,some since *** networks are crucial for understanding the spatial and temporal extent of droughts in their historical context,parameterization of hydrologic models,and local agricultural decision ***,the estimates from these networks are dependent upon their ability to provide reliable soil moisture information at a large *** is also not known how many network stations are sufficient to monitor watershed scale ***,the objectives of this research were to:(1)determine how temporally stable these networks are,including the relationships between various sensors on a year-to-year and seasonal basis,and(2)attempt to determine how many sensors are required,within a network,to approximate the full network *** data from seven in situ,it is concluded that approximately 12 soil moisture sensors are sufficient in most environments,presuming their locations are distributed to capture the hydrologic heterogeneity of the *** is possible to install a temporary network containing a suitable number of sensors for an appropriate length of time,glean stable relationships between locations,and retain these insights moving forward with fewer sensor resources.

主 题 词：Soil moisture temporal stability in situ networks 

学科分类：08[工学] 081101[081101] 0811[工学-水利类] 081102[081102] 

核心收录：

D　O　I：10.1080/17538947.2021.1943550

馆 藏 号：203103743...