Table of Contents 
Executive Summary 
Chapter 1. Taking a Broader View 1 
Purpose and Organization of This Atlas 2 
Landscape Ecology and the Analysis of Broad-Scale Environmental Condition 3 
What are Landscape Indicators and How Do They Help to Understand Environmental Conditions'? 4 
How Were the Landscape Indicators Selected? 6 
How Were the Landscape Indicators Measured? 10 
How Were the Landscape Indicators Summarized? 12 
Chapter 2. The National Context 13 
Data Sources ^ 
How to Read the Maps and Charts in this Report 16 
Human Use Patterns 17 
Forest Patterns 
Patterns Affecting Water Quality 22 
National Context Summary 24 
Chapter 3 . The Tensas River Basin Landscape Assessment 25 
Biophysical Setting 25 
Land Cover 27 
Humans in the Landscape 28 
Population Density and Change 28 
Human Use Index 28 
Roads 29 
Roads Along Streams 30 
Forests in the Landscapes 30 
Percentage of Forest Cover 30 
Forest Fragmentation 33 
Percent of the Watershed in the Largest Forest Patch 33 
Detailed Forest Analysis of the Tensas River Basin, 1970 s to 1990 s 34 
Vegetation Change 30 
Vegetation Change by Subwatershed 37 
Forest and Crop Land Along Streams 36 
Water and the Landscape 40 
Watershed Indicators 41 
Riparian Analysis 42 
Vegetation Change Along the Tensas River Reach 43 
Backswamp Area Analysis 43 
Soil Erodibility Analysis 45 
Wetland Restoration Analysis 46 
Chapter 4 . Water Quality 55 
Nitrogen and Phosphorus Export to Streams 62 
Chapter 5 . Comments and Recommendations 63 
Appendix 
66 
