analysis on the influencing factors of forest natural regeneration in northern china
abstract
the purpose of this paper is to clarify that the differences in natural regeneration
between the two forests in northern china are caused by precipitation, altitude, temperature, and canopy density. similarly, the regeneration ability is related to the
composition of tree species in the forest. generally, the growth trend of a hardwood
forest is not as good as that of a conifer forest in the northern cold area. at the same
time, we also explored the possibility of human disturbance in forests. due to the
different geographical locations of the two forests, the human disturbance of
tuoketuo forest farm is more serious, which is also one of the reasons for the weak
forest regeneration ability. by comparing the natural regeneration data of guandi
mountain and the natural regeneration data of tuoketuo forest farm collected by
previous scholars, the results showed that: (1) there were 17 seedlings and 44 saplings
in ten guandishan 20 m × 20 m square sampling plots. 9 plot has the highest
regeneration density was 250 stems/ ha which canopy density was 0.25. when canopy
density higher than 0.25, the regeneration density decreased significantly with the
increase of canopy density; when canopy density higher than 0.80, there was no
regeneration. (2) four 1 × 1 (m) (1 m2) small plots were set in 2 × 2 (m2) plant plots to
examine the natural regeneration frequency of tuoketuo county. the total area of
regeneration is 10756.8 ha, the total number of regeneration plants is 236650 stems, and the average number of regeneration stems per hectare was only 22 stems. (3) the
regeneration quantity of young forest and seedling in guandishan mountain forest is
more. light, altitude, and other factors were the main factors affecting the
regeneration of larix principis-rupprechtii mayr on guandishan mountain. the forest
in tuoketuo county is not only affected by stand structure, site conditions, climate and
other natural conditions but also affected by human disturbance.
collections
- undergraduate theses [325]
related items
showing items related by title, author, creator and subject.
-
stand structural dynamics of boreal conifer, mixedwood, and broadleaf fire- and clearcut logging-origin stands in central canada
brassard, brian wesley (2006)stand structure has been linked to forest regeneration, nutrient cycling, wildlife habitat, biodiversity, and climate regulation. a review and synthesis of literature indicated that boreal forest stand structure is ... -
carbon and nitrogen dynamics associated with post-wildfire stand development of boreal mixed conifer ecosystems : application of data in model validation and refinement
hoepting, michael kurt (2006)study site : northwestern ontario -
an examination of forest-dwelling birds in recreational areas within thunder bay, on.
johns, allison (2018)forest-dwelling birds hold various social, economic, and ecological values. this study aims to identify the habitat elements that recreational areas provide or lack for various forest birds. three recreational areas across ...