3 edition of Light, soil moisture, and tree reproduction in hardwood forest openings found in the catalog.
Light, soil moisture, and tree reproduction in hardwood forest openings
Leon Sherwood Minckler
by North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture in [Saint Paul, Minn.]
Written in English
|Statement||Leon S. Minckler, John D. Woerheide, and Richard C. Schlesinger.|
|Series||Research paper NC -- 89.|
|Contributions||Woerheide, John D., Schlesinger, Richard C. 1940-|
|The Physical Object|
|Pagination||6 p. :|
Successful tree regeneration is essential for sustainable forest management, yet it can be limited by the interaction of harvesting effects and multiple ecological drivers. In northern hardwood forests, for example, there is uncertainty whether low-intensity selection harvesting techniques will result in adequate and desirable regeneration. Our research is part of a long-term study that tests Cited by: 8. Create openings in the forest canopy to allow more light to reach the ground, stimulating understory vegetation and diversifying plant species composition and vertical structure. These improvements will increase rainfall infiltration and reduce runoff thereby reducing soil erosion and improving water quality.
• Light Degree of Shade Tolerance • Soil Moisture Understory Reinitiation Phase • This is also the stage where stands usually reach their economic maturity • Characteristics larger trees, fewer trees, seed is produced, large crowns, larger canopy gaps, less aggressive crown expansion thus more light reaching the forest floorFile Size: 76KB. Field trials to quantify the long-term effect of silvicultural treatments in southern upland hardwood forests began on USDA Forest Service Experimental Forests and Ranges nearly years ago. Many of those outdoor laboratories and the research sites they contain are still being examined by Forest Service scientists and their : Callie Jo Schweitzer.
The Boreo-nemoral zone in southern Sweden comprises a mixture of coniferous and deciduous forest types. A study was made of ecological responses of deciduous hardwood trees to light, moisture, pH and nitrogen, based on three data sets comprising relevés from three regions, representing four different forest community types: oligotrophic oak (Quercus spp.) forests on poor soils; mesotrophic Cited by: A soil moisture regime in the Canadian forest site classification where the soil has neither a water surplus nor a water deficit during the growing season (i.e., actual evapotranspiration equals potential evapotranspiration). Fresh lies on a gradient between dry forest and wet forest [99,,,]. frond.
artist at the League of Nations =
Call them heroes
Differences in the earnings of women and men
Clinical laboratory diagnosis
Maxon Ranch site
God calls me Miriam
Dictionary of terms used in the safety profession
Mail order trading and other selected distant selling methods
Industrial prospectus of Arkansas.
Deutschland in der Weltwirtschaftskrise in Augenzeugenberichten
The pictorial history of baseball
Man, culture & society
Light, soil moisture, and tree reproduction were measured at five positions in six openings on each of three aspects in southern Illinois. Amount of light received was clearly related to position in the light openings, opening size, and aspect.
More moisture was available in the centers of the openings, although 4 years after openings were made the differences between center and edge positions Cited by: Additional Physical Format: Online version: Minckler, Leon Sherwood, Light, soil moisture, and tree reproduction in hardwood forest openings.
Light, soil moisture, and tree reproduction in hardwood forest openings / Leon S. Minckler, John D. Woerheide, and Richard C. Schlesinger. By Leon Sherwood Minckler AbstractAuthor: Leon Sherwood Minckler. shrubby hardwood species (dogwood and hazel) which offer serious understory competition in the forest.
The results of these studies led to the following conclusions: (1) An intensive cutting of the under story and overstory canopies is needed for maximum survival and growth of. Small canopy openings often alter understory microclimate, leading to changes in forest structure and composition.
It is generally accepted that physical changes in the understory and tree reproduction in hardwood forest openings book, microclimatic) due to canopy removal drive changes in basic forest processes, and tree reproduction in hardwood forest openings book seedling recruitment which is intrinsically linked to soil moisture availability, light and, to a lesser extent Cited by: minor soil moisture deficits.
In the eastern U.S., hardwood dominated forests gradually change to evergreen conifers (spruce, hemlock, white pine) in the colder north, pines and evergreen hardwoods (loblolly and longleaf pines, live oak and magnolias) in the hotter south, and grasses in the drier west.
Composition of NorthFile Size: KB. The interactions between the biotic processes of reproduction, growth, and death and the abiotic processes which regulate temperature and water availability, and the interplay between the biotic and abiotic processes regulating N and light availabilities are important in the dynamics of forest by: In a hardwood forest, trees compete for the water and sunlight that come through the forest canopy—the leafy “roof” over the forest floor.
Single-tree selection reduces this competition. Carefully removing individual trees creates openings in the canopy, allowing more precipitation, sunlight and nutrients to reach the forest floor.
No longerFile Size: 1MB. Soil moisture based upon volume 26 Method 27 Laboratory procedure 27 Results and discussion 29 The wilting coefficient 29 Available soil moisture or growth water 37 Organic content in the open and in the forest 41 Rate of water absorption in open and in forest soil 42 Water-holdingcapacity of the various soil fractions 44 3Cited by: Many more species of plants and animals live in a tropical forest than live in a desert.
This difference most likely is due to the fact that, compared to a tropical forest, a desert 1) has less available sunlight 2) contains soil with sand 3) contains less water 4) has more carbon dioxide in the atmosphere. The present studies were designed to aid in the solution of forest tree seedling establishment problems common to stand conversion practices in Iowa.
The primary objectives were: (1) to determine the minimum treatment needed to insure successful survival and growth; (2) to study the relationships of light and soil moisture in plant competition resulting from stand conversion; and (3) to Cited by: 3.
ability of electrical resistivity and soil moisture was not related to soil temperature differences but showed a strong correlation with canopy variables. Keywords Electrical resistivity Deciduous forests Forest ecology Soil moisture Throughfall Introduction The temperate-climate deciduous forests File Size: 5MB.
soil moisture content for clay-rich soils than for clay-poor soils. This first synthesis of tropical TFE experiments offers the hypothesis that low soil moisture–related thresholds for key stress responses in soil and vegetation may prove to be widely applicable across tropical rain forests despite the diversity of these forests.
Keywords. Start studying Biology Final. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Temperature and moisture Soil composition and temperature Moisture and wind.
Temperature and moisture. Prevent the development of a hardwood forest Prevent the growth of trees Leave the soil barren and without life. This paper reviews the ecological effects of tree uprooting. In many forests, disturbance by uprooting is the primary means of maintaining species richness and diversity.
Treefall may be due to exogenous factors or it may be endogenously created, although the former predominate. The canopy gap formed by downed trees is often vital to community vegetation dynamics and successional pathways, Cited by: The soil also provides a base for the tree to attach itself firmly in place.
The roots, reaching out for water, between the soil particles, serve to anchor the tree as well. Forest soil and the trees growing on them support a great variety of plants and animals. What kinds and how much of such life there is depend on the type of soil and the.
Rich Northern Hardwood Forests are called “rich” because they grow in deep, moist, nutrient-rich soil where plants receive an abundant supply of nutrients and water.
Soil Preference Bottomland hardwood forests are intricate and variable ecosystems due to species richness, flooding, ice movement, internal drainage patterns and the pattern of deposition and development of soils is complex.
Being associated with waterways that File Size: KB. In northern hardwood forests with a closed canopy, individual tree growth is largely driven by tree size and by competition for light with neighboring trees (e.g., Baribault and Kobe, Forest regeneration, or regrowth, requires sufficient numbers of desirable tree seedlings to replace today's forest following harvest.
Under many circumstances, regeneration is not easy. Competing plants, deer, and insufficient light on the forest floor can interfere with regeneration and, in the long run, may threaten forest sustainability. Forests soils are important globally for many reasons, including the relatively large amount of carbon stored in forest soil organic matter.
As a result, disturbance and subsequent changes in nutrient cycling in forest soils can potentially have large impacts on atmospheric levels of CO 2. Soil disturbance caused by logging can impact both abiotic and biotic components of the soil, which in .Forests that have closely spaced trees may be unhealthy because too many trees are competing for the available sunlight and moisture.
As a result, no individual tree receives enough light or water to grow well and some forests may actually stop grow-ing and stagnate, with photosynthesis just matching the respiration and no surplusFile Size: 1MB.Sugar maple is an immensely important species to the ecology of many forests in North America.
Sugar maples engage in a "hydraulic lift," drawing water from lower soil layers and exuding that water into upper, drier soil layers. This not only benefits the tree itself but also many other plants growing around it.