{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,15]],"date-time":"2026-03-15T04:45:27Z","timestamp":1773549927872,"version":"3.50.1"},"reference-count":43,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2024,7,30]],"date-time":"2024-07-30T00:00:00Z","timestamp":1722297600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100011929","name":"Foundation for Food and Agriculture Research","doi-asserted-by":"publisher","award":["DSnew-0000000028"],"award-info":[{"award-number":["DSnew-0000000028"]}],"id":[{"id":"10.13039\/100011929","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100011929","name":"Foundation for Food and Agriculture Research","doi-asserted-by":"publisher","award":["0201-88888-003-000D"],"award-info":[{"award-number":["0201-88888-003-000D"]}],"id":[{"id":"10.13039\/100011929","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100011929","name":"Foundation for Food and Agriculture Research","doi-asserted-by":"publisher","award":["0201-88888-002-000D"],"award-info":[{"award-number":["0201-88888-002-000D"]}],"id":[{"id":"10.13039\/100011929","id-type":"DOI","asserted-by":"publisher"}]},{"name":"The Noble Institute","award":["DSnew-0000000028"],"award-info":[{"award-number":["DSnew-0000000028"]}]},{"name":"The Noble Institute","award":["0201-88888-003-000D"],"award-info":[{"award-number":["0201-88888-003-000D"]}]},{"name":"The Noble Institute","award":["0201-88888-002-000D"],"award-info":[{"award-number":["0201-88888-002-000D"]}]},{"name":"AI Center of Excellence of the USDA Agricultural Research Service","award":["DSnew-0000000028"],"award-info":[{"award-number":["DSnew-0000000028"]}]},{"name":"AI Center of Excellence of the USDA Agricultural Research Service","award":["0201-88888-003-000D"],"award-info":[{"award-number":["0201-88888-003-000D"]}]},{"name":"AI Center of Excellence of the USDA Agricultural Research Service","award":["0201-88888-002-000D"],"award-info":[{"award-number":["0201-88888-002-000D"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>The accurate estimation of aboveground net herbaceous production (ANHP) is crucial in rangeland management and monitoring. Remote and rural rangelands typically lack direct observation infrastructure, making satellite-derived methods essential. When ground data are available, a simple and effective way to estimate ANHP from satellites is to derive the empirical relationship between ANHP and plant-absorbed photosynthetically active radiation (APAR), which can be estimated from the normalized difference vegetation index (NDVI). While there is some evidence that this relationship will differ across rangeland vegetation types, it is unclear whether this relationship will change across grazing management regimes. This study aimed to assess the impact of grazing management on the relationship between ground-observed ANHP and satellite-derived APAR, considering variations in plant communities across ecological sites in the shortgrass steppe of northeastern Colorado. Additionally, we compared satellite-predicted biomass production from the process-based Rangeland Analysis Platform (RAP) model to our empirical APAR-based model. We found that APAR could be used to predict ANHP in the shortgrass steppe, with the relationship being influenced by ecosite characteristics rather than grazing management practices. For each unit of added APAR (MJ m\u22122 day\u22121), ANHP increased by 9.39 kg ha\u22121, and ecosites with taller structured herbaceous vegetation produced, on average, 3.92\u20135.71 kg ha\u22121 more ANHP per unit APAR than an ecosite dominated by shorter vegetation. This was likely due to the increased allocation of plant resources aboveground for C3 mid-grasses in taller structured ecosites compared to the C4 short-grasses that dominate the shorter structured ecosites. Moreover, we found that our locally calibrated empirical model generally performed better than the continentally calibrated process-based RAP model, though RAP performed reasonably well for the dominant ecosite. For our empirical models, R2 values varied by ecosite ranging from 0.49 to 0.67, while RAP R2 values ranged from 0.07 to 0.4. Managers in the shortgrass steppe can use satellites to estimate herbaceous production even without detailed information on short-term grazing management practices. The results from our study underscore the importance of understanding plant community composition for enhancing the accuracy of remotely sensed predictions of ANHP.<\/jats:p>","DOI":"10.3390\/rs16152780","type":"journal-article","created":{"date-parts":[[2024,7,30]],"date-time":"2024-07-30T11:11:25Z","timestamp":1722337885000},"page":"2780","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Predictions of Aboveground Herbaceous Production from Satellite-Derived APAR Are More Sensitive to Ecosite than Grazing Management Strategy in Shortgrass Steppe"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6832-0583","authenticated-orcid":false,"given":"Erika S.","family":"Peirce","sequence":"first","affiliation":[{"name":"Rangeland Resources and Systems Research Unit, US Department of Agriculture (USDA)\u2014Agricultural Research Service (ARS), Fort Collins, CO 80526, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5939-1259","authenticated-orcid":false,"given":"Sean P.","family":"Kearney","sequence":"additional","affiliation":[{"name":"Rangeland Resources and Systems Research Unit, US Department of Agriculture (USDA)\u2014Agricultural Research Service (ARS), Fort Collins, CO 80526, USA"}]},{"given":"Nikolas","family":"Santamaria","sequence":"additional","affiliation":[{"name":"Applied Data Science Program, New College of Florida, Sarasota, FL 34243, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3144-0466","authenticated-orcid":false,"given":"David J.","family":"Augustine","sequence":"additional","affiliation":[{"name":"Rangeland Resources and Systems Research Unit, US Department of Agriculture (USDA)\u2014Agricultural Research Service (ARS), Fort Collins, CO 80526, USA"}]},{"given":"Lauren M.","family":"Porensky","sequence":"additional","affiliation":[{"name":"Rangeland Resources and Systems Research Unit, US Department of Agriculture (USDA)\u2014Agricultural Research Service (ARS), Fort Collins, CO 80526, USA"}]}],"member":"1968","published-online":{"date-parts":[[2024,7,30]]},"reference":[{"key":"ref_1","unstructured":"Holechek, J., Pieper, R.D., and Herbel, C.H. 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