摘要
对我国农资使用和畜禽粪便排放现状以及对土壤产生的危害进行了论述,选取化肥、农药、农膜投入密度和畜禽粪尿排泄密度4项指标进行测算,运用聚类分析法对31个地区进行聚类分析,结果表明:农业土壤污染存在显著的地域分异特征,聚合成3类:第一类含11个地区,第二类含9个地区,第三类含11个地区,针对不同地区的地域分异特征提出了相应对策。
The paper discussed agricultural materials application, discharge status of animal manures, and their hazards to soil. Four indicator as input density of fertilizer, pesticide, plastic, and density of animal manures discharge were calculated using cluster analysis in 31 areas in China. Results showed that the contamination of agricultural soil had significant regional differentiation characteristics, which aggregated into 3 types, 11 areas were in 1st type, 9 in 2nd, and 11 in 3rd type, and related strategies were proposed in this paper according to different regional differentiation characteristics.
出处
《贵州农业科学》
CAS
北大核心
2010年第1期95-98,共4页
Guizhou Agricultural Sciences
基金
国家"十一五"科技支撑计划重大课题"喀斯特高原退化生态系统综合整治技术与模式"(2006BAC01A09)
关键词
农业土壤污染
地域分异特征
聚类分析法
contamination of agricultural soil
characteristics of regional differentiation
cluster analysis
