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Delta resources at risk
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Aquatic resources have been a critical component of California's growth and prosperity, but scientists warn that human uses have taxed these resources to the limit. Efforts are under way to restore aquatic ecosystems statewide.
Above, Mildred Island is a 1,000-acre "lake" formed in 1983 when large storms breached a levee and flooded a farm tract. Located in the interior San Joaquin-Sacramento River Delta, this site represents a shallow-water habitat type that will be constructed by CALFED to promote the recovery of native fish.
Research is helping to inform this effort. On page 104, scientists measure supplies of phytoplanton, an essential component of the Delta food web. Also, studies on biomarkers (page 110) aid in understanding how environmental factors affect Delta wildlife. Infared photo by Herb Lingl/aerialarchives.com .
Wine and artisan cheese find their niche
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The strength of California Agriculture has always been its ability to adapt and find new markets for unique products. In recent years, growers have excelled at developing value-added products such as premium wine (see page 71) and artisan cheeses (see page 76). UC advisors have played a key role in helping them cultivate and market the wide range of delicious specialty crops and products found in produce aisles and farmers' markets across the state (see page 66).
California soil quality: a closer look
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Soil is the essential building block for sustainable agriculture and healthy ecosystems. In this issue, UC scientists examine how production agriculture, natural vegetation, and environmental regulation have effected California soil. One study finds that the state's soil has maintained its chemical quality over the last six decades, although erosion appears to have accelerated. Scientists working in oak woodlands report that blue oaks signifcantly enhance the fertility of the soil. Others performing field trials in the Salinas Valley assess the trade-offs of different cultural practices. In addition, researchers provided helpful information to rice growers incorporating rice straw into soil, and to managers seeking to meet environmental regulations while using public lands to graze livestock.
Nutrition research and education: Prescription for diabetes crisis
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The prevelance of diabetes in California has increased 67% since 1980. At south Stockton's Fifth-Street Medical Center, two-thirds of Dr. Kwabena Adubofour's clients are Latino and are significantly higher risk for the disease than non-Latino Whites. Adubofour takes the blood pressure of Esther Ferreira a 55-year old Stockton resident who was diagnosed with type 2 diabetes three years ago. She manages the disease with diet, exercise, and regular visits to the doctor. With the guidance of medical professionals such as Adubofour, UC Cooperative Extension advisors have developed diabetes prevention outreach programs to promote awareness and healthier lifestlyes among Latino's and other high risk populations. Color photo by Phil Schermeister .
October-December 2003
Volume 57, Number 4
Volume 57, Number 4