Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Validity of leaf areas and angles estimated in a beech forest from analysis of gap frequencies, using hemispherical photographs and a plant canopy analyzer...
Although the main consideration of policy must be the reduction in pollution at
source, there has been an increasing recognition that the biosphere is an important
sink for many pollutants, with plant canopies being considered more effective than
other land uses. Thus, the biosphere provides benefits additional to those associated
directly with their aesthetic and wildlife characteristics. Plants facilitate the uptake,
transport and assimilation or decomposition of many gaseous and particulate
Scientific perception of nature relies on a process
of transforming data to information, and then
information into understanding. Data consist of
observations and measurements and information
is data organized according to some ontology,
i.e. some set of assumptions about what entities
exist and how they should be classified. Understanding
is a model in the investigator’s mind that
describes how the entities relate to each other,
a model created in the investigator’s mind as a
result of thinking.
Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: Botanical determinants of foliage clumping and light interception in two-year-old coppice poplar canopies: assessment from 3-D plant mock-ups...
In a book titled Photosynthesis it is easy to forget that light is not simply the energy driving
plant metabolism. Light also is the central environmental factor that affects plant size, shape
and development. In fact, light activation of photomorphogenic signaling pathways sets the
stage for photosynthesis and ensures the maintenance of the apparatus. The effects of
specific wavebands of light exert their influence on plant biology from the molecular level
all the way up to the higher morphological level, and even contribute to the canopy form as
Detailed assessment of impacts of more than 50 Farmer Field Schools (FFS) in 11 provinces through
which over 2,000 farmers were trained from 2005 to 2006 has shown many beneficial effects. Farmers
have increased knowledge and their skills in planting and protecting citrus trees and at the same time
they have increase awareness of the recording and post-harvest storage, marketing and especially the
changes in farming practices significantly after participating in FFS.