Some factors such as unique biological property, the damage of ecologic environment, overexploitation and late investigation on it were the resource of dendrobium's resource crisis.
Based on the barren land of bashang, high water leakage, high economic production and low biomass, made cushaw to be the best crop to produce both ecologic and economic benefit in bashang.
This paper analyzes the effect of weather warming to ecologic environment and agriculture according to a lot of observation.
Bashing district in Hebei province has a characteristic geographic area condition around Beijing and Tianjing city, which is a natural ecologic and water-source protection barrier.
A series of ecologic analyses of pertussis notifications during epidemic periods in relevant age cohorts were conducted.
Based on the analysis of the sedimentary rate, ecologic and sedimentary aspects, it is believed that both the Wufeng shale Member and the Guanyingqiao Member are formed in deep sea basin environment.
Beginning with the analysis of environmental crisis, this chapter points out the important meaning of research on ecologic tendency of architecture creation.
Of all the ecologic factors contributing to arthropod-borne zoonotic viral disease emergence, uncontrolled urbanization is the most important.
Phenomenon of Dalian lake's Dried up showed that hydrology situation was developing worsen tendency in Shazhuyuregion. Possible channel of improved Shazhuyus ecologic environment was offered.
Remain unused for almost 50 years, Savillarow, therefore, reserves good ecologic resources.
In sensitive region, it has great influence on engineering and ecologic balance in pastoral area.
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