与 «UNGRAZED»相关的英语书籍
在以下的参考文献中发现
ungrazed的用法。与
ungrazed相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
Long-term changes in cottonwoods on a grazed and an
ungrazed ...
Diameter class distribution ol cottonwood trees in 1961 and 1978 on a grazed
and an ungrazed bottomland in northeastern Colorado. reduction in livestock
grazing and changes in their season of use probably also contributed to the
relatively ...
Glenn LeRoy Crouch, Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.), United States. Forest Service, 1979
2
Effects of fire and cattle grazing on longleaf pine lands, ...
25 10, 120 3 1 0 40 Unburned pasture 46 10, 326 93 35 7 717 Unburned
ungrazed 37 7,838 76 55 21 1,676 Seed trees: Burned pasture 9 6,000 67 6 0 0
Burned ungrazed 12 35,417 6 0 0 83 Unburned pasture 17 17, 588 52 17 1 176 ...
William Gustavus Wahlenberg, Smith Winford Greene, Hiram Richard Reed, 1939
3
Plant Morphogenesis as the Basis for Scientific Management ...
than over the ungrazed treatment during all 3 weeks reported. Average vapor
pressure deficits at the 15 cm. height were slightly greater on the grazed area
than on the ungrazed area during each week (table 16). Prasad (16)
demonstrated a ...
United States/Australia Rangeland Panel. Workshop, Kermit William Kreitlow, Richard Harry Hart, 1974
4
Miscellaneous Publication
Estimating perennial grass utilization on semidesert cattle ranges by percentage
of ungrazed plants. Jour. Range Mangt. 3(3) : 182-185, illus. A util. measurement
system based on % ungrazed grass clumps was studied in an effort to lessen ...
5
Recreational Impact on Wildlands: Conference Proceedings : ...
The amount of cover available on the grazed site was less than on the ungrazed
site. The type of cover also differed between the two areas. Hall's panicum (
Panicum halli), threeawns (Aristida sp.) and fairyduster (Calliandra conferta) ,
three of ...
6
Human Exploitation and Biodiversity Conservation
Discussion Responses of vegetation-associated insects This study found that
vegetation-associated insect communities of grazed and ungrazed grassland
sites in southeastern Arizona differed strongly. Overall, insects were significantly
more ...
D. L. Hawksworth, Alan T. Bull, 2008
7
The influence of precipitation and grazing upon black grama ...
on conservatively grazed range as on the ungrazed range. The extreme dry
weather in the winter, spring, and summer of 1922 that caused a severe decline
on the ungrazed range had less effect on the grazed range except for several ...
Enoch Wesley Nelson, 1934
8
Biodiversity and the Management of the Madrean Archipelago: ...
Three subfamilies were represented: Gomphocerinae, Melanoplinae, and
Oedipodinae. See the Appendix for a list of grasshopper species and their
abbreviations. Total abundance of individuals of all species of grasshoppers on
ungrazed ...
Begin sprays when hatching of the most numerous species is completed, and
finish before the pests begin to lay eggs- Ungrazed areas. — Treatment of
wastelands, roadsides, and conservation reserves is important to hold down
migrations.
10
Range research methods: a symposium, Denver, Colorado, May 1962
Densities ranged from 1.54 to 1.91 for heavily grazed sites and from 1.09 to 1.51
for ungrazed and lightly grazed sites. In second-growth hardwood stands of
central New York, Chandler (1940) found that bulk density of loams and silt
loams ...
United States. Forest Service. Division of Range and Wildlife Habitat Research, 1963
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ungrazed在以下新条目的上下文中是如何使用的。
Aiming fire at seedlings may be the key to rangeland mesquite control
If the pasture remains ungrazed or lightly grazed, this would create the highest probability for a natural fire to occur within five to 20 months after mesquite ... «The Eagle, 八月 15»
Managing grasslands for greater prairie chicken habitat
The varied habitat prairie chickens require throughout the year can be found on grazed and ungrazed Sandhills rangelands on public and private land. Grazing ... «Lincoln Journal Star, 七月 15»
No till, cover crops help minimize erosion, surface runoff
Kumar recommended using perennial grasses, such as switch grass and big blue stem, to reduce runoff. In particular, strips of perennial grasses left ungrazed ... «Farm and Ranch Guide, 七月 15»
Consider bermudagrass stockpiles for fall, winter forage supplement
"Strip grazing works best because animals won't trample ungrazed forage. Strip width can be calculated from three factors: the daily forage dry matter required ... «Farm Futures, 七月 15»
August the time to stockpiling bermudagrass
“Strip grazing works best because animals won't trample ungrazed forage.” In Arkansas demonstrations, strip grazing doubled the number of grazing days ... «High Plains Journal, 七月 15»
'Number of active farmers on commonage declining'
... of commonage, the activity must be carried out by at least one of the applicants” and that “areas ungrazed due to low stocking rates, areas of ungrazed mature ... «Agriland, 四月 15»
Needingworth Quarry's insects win a top award for Dr Alvin Helden …
"Setting aside ungrazed areas has clearly been effective in encouraging insect populations. Obviously these benefits will have to be balanced against lost ... «Cambridge News, 十一月 14»
Greens Fight USA Over Garter Snakes
"Specifically, results indicated that snake abundance and biomass were significantly higher in ungrazed habitat, with a five-fold difference in number of snakes ... «Courthouse News Service, 十一月 14»
Bison Grazing Increases Arthropod Diversity and Abundance in …
... how bison grazing affects insects and other arthropods at the Tallgrass Prairie Preserve in Osage Colorado by taking samples in grazed and ungrazed areas. «Entomology Today, 九月 14»
Earth is in the early stages of a sixth mass extinction, says the …
... a case-study: After the kill-off of most of its zebras, giraffes and elephants — the nation has become overwhelmed by rodents gorging on the ungrazed terrain. «NEWS.com.au, 七月 14»
