summarily analyzes and introduces some problems in utilization and management of agricultural renewable energy in China as well as efforts that Chinese Government made in development of agricultural renewable energy and related administrative policies and plans and achievements in construction of agricultural renewable energy;
It was urgent to optimize rural energy. Therefore, it was necessary to develop new energy and renewable such as modern biomass energy, so as to resole the problem of rural energy.
In order to get sustainable harvesting and then to obtain the largest benefits,this paper bases on the model of increase in single spices making a detail study on the optimal exploitation of biological single spices,confirms the strategy of the optimal exploitation,extends the relative theories in literature and provides the theoretic basis for the practical management of renewable resources.
Instantaneous availability assessment of renewable component in exponential distributions
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A renewable component with exponential failure and repair times is considered, and its instantaneous availability at time t is denoted by A(t).
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Rosin glycerin ester and its bromide were prepared from natural renewable rosin, glycerin and liquid bromine which were first subjected to an esterification reaction, followed by an addition reaction.
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Cellulose is a kind of renewable resource that is abundant in nature.
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The use of mixed cultures and renewable sources obtained from waste organic carbon can substantially decrease the cost of PHA and increase their market potential.
In the early 1970's guided by the policy of "Grain must be taken as the key link in agriculture", people in Hubei and some other provinces in China started a "land reclaimed from lake" upsurge, which however incurred some knotty problems in the reclaimed areas. Ecological and economic cost-benefit analyses are made in this paper based on the data obtained from the reclaimed lake regions. It is concluded that land-reclamation should be regarded as a kind of disadvantageous action because of its adverse impac...
For associating with the realization of "The Outline of Natural Protection of China", we compiled the atlas of natural protection in China. It results from developing of modern science and is a new category in the field of thematic map. This paper expounded the importance and purpose of compilation in the view of natural protection. It has showed this atlas is comprehensive and especially in its renewable natural resources. According to mapping scopes it divides into atlas of nutural protection of the...
The severe problem of world population policy today is the great discquilibruim between population in- crease and land resources,fresh water resources,biological resources and the envrioment.Population sharp in- crease adds the stress on natural and decreases the productive eapacity of renewable rcsources.Such stress will be harmful to exploitation of natural resources.After analysing these respones of land use,forest resources, water resources,living being resources,energy resources and marine resour...