High Percent Calcium Carbonate
LCCs have produced a wealth of informational documents, reports, fact sheets, webinars and more to help support resource managers in designing and delivering conservation at landscape scales.
High Percent Gypsum Content of Soils - SSURGO SRLCC North - Vulnerability
High Sodium Absorption Ratio
High Sodium Absorption Ratio - SSURGO SRLCC South
High Percent Gypsum Content of Soils
Drought sensitive soils SRLCC South vulnerability map
Potential for vegetation change on sensitive soils (CSIRO scenarios) for 2041 to 2050 in the Southern Rockies LCC, USA.
Data from this research are publicly accessible on databasin.org. The goals of the project included:
MC2 projections of potential vegetation types for (2041 to 2050) under the CGCM3 GCM scenarios.
Potential for vegetation change on sensitive soils (CGCM3 scenarios) for 2041 to 2050 in the Southern Rockies LCC, USA.
Potential for vegetation change on sensitive soils (consensus of 8 scenarios) for 2041 to 2050 in the Southern Rockies LCC, USA
This report reviews tree mortality rates in stands of mature Fremont cottonwood (Populus fremontii Wats.) along streams and rivers in semiarid and arid portions of the western United States. Along rivers where floodplains lack younger, replacement forest patches, these rates will determine how fast existing dryland riparian woodland and forest habitats used by migratory birds and other wildlife will shrink or disappear. I first review longevity and mortality rates in trees, emphasizing cottonwoods and poplars in the genus Populus, and then use these data and the observed
Within the last quarter Siglo has: Substantially completed model build parametrization, and testing; Further developed the final model and report; and Presented the status of the project to stakeholders in Utah. Please see a copy of draft methods below. In addition, we have attached a copy of the presentation.
SRLCC Cottonwood Stand Dynamics Geodatabase
Springs—ecosystems where groundwater reaches the Earth's surface—are among the most biologically, socio-culturally, and economically important water resources (Stevens and Meretsky 2008). Many endangered species, and numerous rare or endemic species of plants, invertebrates, amphibians, and fish are found only at springs in the United States. Springs are highly sacred to indigenous cultures that use them for water supplies, medicinal, ceremonial, and other purposes.
Trout Unlimited will extend its existing Adopt-a-Trout program to the Henrys Fork River, a tributary to the Green River in the Colorado River basin. The project will include work with the Wyoming Game and Fish Department and local schools to tag and monitor Colorado River Cutthroat trout movements to learn more about fish passage issues, areas of high entrainment, habitat use, and native and wild trout migratory patterns.
Climate change and wildfire are interacting to drive vegetation change and potentially reduce water quantity and quality in the southwestern US. Forest restoration is a management approach that could mitigate some of these negative outcomes. However, little information exists on how fuel treatments combined with climate change might influence hydrology across large forest landscapes that incorporate multiple vegetation types and complex fire regimes.
The Shivwits Band of the Paiute Indian Tribe of Utah (PITU) has recognized the need to
identify and assess the potential impacts of landscape-level stressors, such as climate change
and drought, on tribal and ancestral lands and resources, such as water resources and
culturally significant species and the habitats and ecosystems that support them. With
funding from the Southern Rockies Landscape Conservation Cooperative, the Shivwits hired
Barbara Dugelby1 of Round River Conservation Studies to conduct the assessment and
The restoration of historical fire regimes is often a primary objective in the conservation of fire-adapted forests. However, individual species’ responses to future climate change may uncouple historical vegetation–disturbance relationships, producing potentially negative ecological consequences to fire restoration. We used a landscape simulation model to assess how forest pattern will respond to future climate regimes and whether the restoration of historical fire regimes will benefit forest conservation under future climate regimes.
Three webinars presented by the Springs Stewardship Institute.
This document summarizes research conducted to develop and apply climate
analysis tools toward a better understanding of the past and future of climate variability in
the state of Utah. Two pilot studies developed analysis tools through the investigation of
natural variability in precipitation systems in Africa, and research into long-term changes
and trends in spring rainfall over the U.S. Great Plains. Our third study used tree-ring
data to estimate snowpack in the state of Utah to 1850, doubling the length of record and
The main purpose of this project was illustrated in Figure 1 of the original proposal, which is copied here. In that figure, the projection of water supply for the Colorado River in the 21st century is frequently portrayed as a ‘smeared future’, confused by large uncertainties in the output from the CMIP5 model ensembles (Colorado River Basin Water Supply and Demand Study released by the Bureau of Reclamation in January 2013).
The purpose of this study was to investigate the relationship between canopy density and optimal
snowpack conditions. In order to perform this investigation, the physically-based snow energy
model, Southwestern Forest Snow Energy Model (SFSEM), was developed. Modeling of
snowpack dynamics was completed with SFSEM for 1070 forest stands in the Valles Caldera
National Preserve (VCNP). The modeling exercise was performed for the December 2015 to
Interactive maps of springs distribution and analysis of the Southern Rockies LCC.
Snowpack observations in the Intermountain West are sparse and short, making them
difficult for use in depicting past variability and extremes. This study presents a reconstruction
of April 1 snow water equivalent (SWE) for the period of 1850–1989 using increment cores
collected by the U.S. Forest Service, Interior West Forest Inventory and Analysis program (FIA).
In the state of Utah, SWE was reconstructed for 38 snow course locations using a combination of
This reports summarizes work and key findings to date from the Upper RIO Grande Basin SNOwfall Measurement and streamFLOW (RIO-SNO-FLOW) Forecasting Improvement Project conducted from Jan. 1, 2014 through Dec. 31, 2015. The project area was centered over the upper mainstem Rio Grande and Conejos River basins in southern Colorado. This report is organized into 7 chapters that detail the major elements of the project including; a Project Description, NOAA Gap-filling Radar, NASA Airborne Snow Observatory, In-Situ Ground Observations, Distributed Hydrologic Modeling, and Community Engagement.
Since the last reporting period, the project team has been focused on conducting spatial analyses of habitat complexity at tributary junctions and finalizing the decision support model and report on the Colorado River. The decision support model was completed and report finalized and designed to inform restoration opportunities on the Colorado River corridor in Utah. The final draft of the CO report is awaiting final USGS review and layout for publication as an Open File Report. Results of the study were presented at the USGS River Restoration workshop in Flagstaff, AZ, June 23-24.
This project had two primary goals: 1) To develop a process for integrating data from multiple sources to improve predictions of climate impacts for wildlife species; and 2) To provide data on climate and related hydrological change, fire behavior under future climates, and species’ distributions for use by researchers and resource managers.
Future expected changes in climate and human activity threaten many riparian habitats, particularly in the southwestern U.S. Using Maximum Entropy (MaxEnt3.3.3) modeling, we characterized habitat relationships and generated spatial predictions of habitat suitability for the Lucy’s warbler (Oreothlypis luciae), the Southwestern willow flycatcher (Empidonaxtraillii extimus) and the Western yellow-billed cuckoo (Coccyzus americanus).
Since the last report, we have remained focused on completing stages 1 and 2 of the project, continuing to conduct spatial analysis of habitat complexity at tributary junctions and developing decision support models to inform restoration outcomes on the Colorado River. Specifically, efforts have been dedicated to devising remote sensing methods for analysis of vegetation to investigate riparian habitat complexity at tributary junctions along the regulated Dolores and Colorado Rivers.
Species habitat suitability data
Habitat complexity in rivers is linked to physical processes that act at various spatial scales and requires dynamic hydrologic and geomorphic conditions. On regulated rivers in the western United States, tributaries may provide important resource inputs and serve as sources of dynamism on regulated systems, offering blueprints to guide restoration of habitat complexity in riparian areas. We investigated spatial patterns and extent of tributary influence on riparian habitat complexity along regulated reaches of the Colorado and Dolores Rivers in the western United States.
Final report by Heather Bateman and Matthew Johnson.
Riparian ecosystems are vital components of the semi-arid landscape because woody riparian plants provide resources that are absent in adjacent vegetation types. Historically, flood played a key role in shaping the composition and structure of riparian forests. In recent decades, however, the frequency and magnitude of floods has decreased and the timing of peak discharge has been altered. In addition, wildfire has increased in importance as an agent of disturbance along many streams.
Climate change challenges the management of western water resources. Water is expected to become more limited with increased evaporation, drought, and changing precipitation regimes. Climate change vulnerability assessments provide a method to compare the causes and consequences of changing conditions for species, habitats, and ecosystems. Within the aquatic sector, vulnerability assessments have long been used to gauge the impact of threats on important ecosystems services that provision both human and ecological needs.
Climate change predictions include warming and drying trends, which are expected to be particularly pronounced in the southwestern United States. In this region, grassland dynamics are tightly linked to available moisture, yet it has proven difficult to resolve what aspects of climate drive vegetation change.
Woody plant regeneration: population model input in Excel.
Woody plant regeneration: post fire woody plant data in Excel.
This project was completed in the shadow of the enormous efforts of the Bureau of Reclamation and partners to complete a forward-looking water supply and demand study for the entire Colorado River Basin ("Basin Study", USBR 2012). The Basin Study predicted a median water supply and demand imbalance of approximately 3.2 million acre feet in the 2041-2060 time period. Billions of dollars may need to be spent on a wide range of strategies and solutions to manage this gap.
The Improving Crop Coefficients for the Middle Rio Grande Project (ICCMRG Project) was completed by the New Mexico Office of the State Engineer (NMOSE) under a grant from the United States Bureau of Reclamation. The objective of the ICCMRG Project is to assess actual crop water use for the years 2011 and 2013 through remote sensing technologies that estimate the evapotranspiration (ET) of individual crops within the Middle Rio Grande (MRG).
Effects of restoration treatments on ponderosa pine ecosystems, Front Range, Colorado 2011-2013.
In 2010, Colorado Front Range National Forests were awarded a Collaborative Forest Landscape Restoration (CFLR) grant to facilitate the implementation of restoration treatments across 32,000 acres of ponderosa pine-dominated forests. Collaborative, multi-party monitoring of the impacts of restoration was a required component of the grant; however, the budget for this work was limited, and initial monitoring plans for the Arapaho-Roosevelt National Forest (AR) and the Pike-San Isabel National Forest (PSI) did not include a strong emphasis on key components of the ecosystem such as wildlife
Riparian ecosystems are vital components of aridlands within the southwestern United States. Historically, surface flows influenced population dynamics of native riparian trees. Many southwestern streams has been altered by regulation, however, and will be further affected by greenhouse warming. Our analysis of stream gage data revealed that decreases in volume of annual discharge and mean peak discharge and a shift to earlier peak discharge will occur in the Southern Rockies region of Colorado, New Mexico, and Utah.
Climate change is projected to have an enormous effect on water resources in the western US, with cascading effects on river-dependent organisms. Recent studies show that increasing drought will lead to reduced water in many rivers in the southwestern US. For example, streamflow in the warm season has declined over the last century in the western US and is projected to continue decreasing over the next 100 years.
Woody plant regeneration: cottonwood population model output in Excel.