In order to better ensure the food security in China,this paper explores the grain scale management mode in Hubei Province. It analyzes the grain production sit
Through building an indicator system for evaluating the marine sci-tech innovation ability of China’s coastal provinces,this paper made a comparative analysis
Since the founding of new China,the maize production pattern took on characteristic of " northern expansion and western movement" : there were great changes in
Rational fertilization is an important measure to increase crop yield and soil fertility. Through analysis,this paper aims to master the change characteristics
This paper firstly evaluated ecological service functions of ecological public welfare forest in Hainan Province. Then,it introduced value structure and existin