Abstract
Rural ecological environment is the basic on human survival, analyze its structure and function is the key to crack the problem of agro-ecological environment. This paper studied the evaluation of rural ecological environment and its influencing factors. The results showed that: the rural ecological environment showed declining trend, the value of its input-output efficiency was low and its regional differences was significant; the quality of economic development affected the rural ecological environment in a certain extent, but not the only factor; chemical fertilizer, pesticide, agricultural plastic film, arable land were key factors affecting the rural ecological environment. It implied that there was a large room for improving the rural ecological environment.
Highlights
In recent years, China government has made tremendous efforts in environment protection and achieved remarkable achievements
Take the typical western agricultural province - Sichuan province for example, according to the environmental capacity analysis report, rural pollution load in the proportion of overall pollution load has reached 30% -40% in some areas, even up to 70%; Livestock discharged COD 3.9 million tons and ammonia 7.9 million tons per year, that of industrial pollution emissions 13 times and 38 times respectively; chemical fertilizer application amounted to 2.2 million tons per year, average 490 kg per hectare, far more than the developed countries setting the standard 225 kg per hectare in order to prevent water pollution and chemical fertilizers, significantly higher than the national average use of fertilizer 330 kg per hectare (Su, 2007; Wu, 2000)
Data envelopment analysis (DEA) is based on the concept of relative efficiency, for the evaluation of multi-input and multi-output with the same type of decision making units whether technology effectively with non-parametric statistical method, the method not need to determine the index of weight, less affected by subjective factors, but can not reflect the preferences of policy makers (Ma, 2009;Zhou, 2009)
Summary
China government has made tremendous efforts in environment protection and achieved remarkable achievements. The improvement of urban environment was more obvious, but the rural ecological environment was still quite grim. Take the typical western agricultural province - Sichuan province for example, according to the environmental capacity analysis report, rural pollution load in the proportion of overall pollution load has reached 30% -40% in some areas, even up to 70%; Livestock discharged COD 3.9 million tons and ammonia 7.9 million tons per year, that of industrial pollution emissions 13 times and 38 times respectively; chemical fertilizer application amounted to 2.2 million tons per year, average 490 kg per hectare, far more than the developed countries setting the standard 225 kg per hectare in order to prevent water pollution and chemical fertilizers, significantly higher than the national average use of fertilizer 330 kg per hectare (Su, 2007; Wu, 2000). The in-depth study of rural ecological environment has important practical significance
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