This paper introduces the construction status of National Nature Reserves in China, and then it points out some primary problems in the construction of National Nature Reserves. Finally, we put forward some related countermeasures and suggestions.

Firstly, the evolution process of grain subsidy policy in China was introduced. In the first stage, the nation carried out grain policy of unified purchase and sale. In the second stage, the nation carried out price subsidy for grain purchasing. In the third stage, the nation carried out direct...

We introduce the fish fauna composition and main commercial fishes in Yangtze River estuary. We also analyze the current situation of resources and environment in Yangtze River estuary as well as the influential factors. Finally, related countermeasures are put forward on how to protect and use...

The authors analyze the existing problems and macroscopic influencing factors in grain production of Henan Province, and then carry out an empirical study on the correlation between grain production and eight influencing factors in Henan Province of China by using the gray correlation analysis...

Small-scale irrigation and water conservancy facilities are significant to the improvement of agricultural infrastructure. Construction of small-scale irrigation and water conservancy facilities in rural China is seriously lagged at present. Many small-scale water conservancies are seriously...

We analyze the causes of food crisis in developing countries according to the global food crisis at present. Finally, we put forward some relevant policy suggestions for coping with the food crisis.

We use the mean value and variation coefficient model to analyze the spatial-temporal feature of grain production in 31 provinces from the year 1980 to 2006. Time series of grain production is divided into 3 stages according to the average yield and the variation coefficient of grain production...

This paper introduces the basic trend of the price of agricultural products in China, and analyzes the causation of rigid rise of agricultural product price. We also study on the fluctuation characteristics of the prices of Chinese and classification agricultural products.

The authors select six indices of resource endowment, supply scale and structure of agricultural products in assessment area of China, and then use Factor Analysis Method and Geographic Information System (GIS) technology to classify the supply capacity of agricultural products in 140 counties...

We study the factors influencing the sugar imports in China. A multivariate linear regression model for quantitative analysis in established and the model is researched with multicollinearity treatment, autocorrelation and heteroscedasticity test. Research result shows that the per capita income...