Treesearch

The tallgrass prairie biome of North America once extended from Canada to the Gulf of Mexico. Only an estimated 1% of this important ecosystem remains today (Diamond and Smeins 1988; Samson and Knopf 1994), and these remnant prairie tracts are currently the focus of intense restoration and conservation efforts (Bock and Bock 1995; Kindscher and Tieszen 1998). In addition, conservationists have a very strong interest in restoring native tallgrass prairie communities in abandoned farmland tracts that are being allowed to revert to natural vegetation. A variety of prairie restoration methods...

Tennessee is a hardwood state; 87% of the state's 13,000,000 forested acres are hardwood. The remaining 13% are Pine or Mixed Hardwood-Pine forest types. There are approximately 1,000,000 more forested acres today than there were in 1950. Most of this increase is related to abandoned hillside farmland.

Demands placed on pine production in the southeastern part of the United States prompt managers to research and employ intensive cultural practices. Bareroot conifer seedling culture, like loblolly pine (Pinus taeda L.), is highly preferred in moderate regions of the South, since bareroot stock is relatively inexpensive to purchase, transporting and planting costs are reasonable, and field survival and growth measures are tolerable. For almost 50 years, Philip Wakeley's Monograph No. 18 has been used as the "bible" for the cultivation of southern pines, because sound prescriptions have...

Forest policy in the United Kingdom does not list timber production as a main objective, despite the fact that the country is heavily reliant on imports of timber products. The level of new conifer planting has been much reduced over the last ten years; timber prices are very low due to the high rate of sterling; competition from imports is high; devolution plus the recent impact of foot and mouth disease, cumulatively provide an uncertain future for British forestry. Production from British forest nurseries is directed towards commercial forestry, amenity and landscape, native broadleaf...

Slow release fertilizers have been in common use within the horticultural industry for decades. Probably the mostly commonly heard of product is Scott's Osmocote which has been around for a quite a long time. However, some time ago slow release fertilizers moved out of the potted greenhouse environment and onto golf courses, suburban lawns and bushes, and orchards. Slow release fertilizers are here to stay, but there still seems to be a lot of users who do not understand them.

Seven nations of Native Americans in the US and Canada are using native plant species for restoration and to reintroduce populations of species of cultural significance due to habitat loss. The scope of their projects as well as the important environmental, cultural, and economic benefits resulting from their efforts are briefly described.

Good morning. My name is Theodora Homewytewa. I'm from the Hopi tribe. And I feel naked. [laughter] I have no slides, nothing to show you, except for what I have here from my heart. That's how I am when I do my work. My tribe is here. I'm very very glad to see Max here this morning. (Max Taylor, Hopi Tribal Range Management) He's from the Hopi tribe. I thought I was going to be lost but I feel OK now. [laughter]My work is working with people. I am who they call a medicine woman. I gather my herbs and I work with plant life. I don't plant it and I'm not there helping it grow. So this...

Establishment of tree plantings in arid and semi-arid regions where available irrigation water is limited is often costly and problematic. This study examined the effects of site preparation, specifically V-ditching and use of synthetic weed barrier alone and in combination, and stock size based on container volume on early, 1- and 6- month, mid, 12- and 15-month, and late, 72-month, survival and height growth of fall planted, Arizona cypress (Cupressus arizonica) seedlings planted in Los Lunas, New Mexico. The study was installed at the New Mexico State University Los Lunas Experiment...

A 72 percent response rate was achieved in 1998 and 1999 national survey of 1,238 participants in the USDA Forest Service's Forest Stewardship Program, under which 130,000 individual multiple resource plans encompassing 16.5 million acres (6.5 million ha) of privately owned forest lands in the United States had been completed. Objectives were to determine if the plans were meeting the needs of private landowners and promoting long term sustainable management to meet public needs for wood products and other benefits. We found a very high rate of plan implementation and a high level of...

The Westrup brush machine can be used as the first step in the conditioning process of seeds. Even though there are various sizes of the machine, only the laboratory model (LA-H) is described. The machine is designed to separate seed from pods or flowers, dewing tree seed, remove appendages or hairs from seed, split twin seed, de-lint cotton seed, scarify hard coated seed, and polish seed.