干旱区生态环境知识资源中心(Arid): 京郊山地旱作区农田生产力可持续性分析与对策以延庆县为例

Arid

	京郊山地旱作区农田生产力可持续性分析与对策以延庆县为例
其他题名	Evaluation of sustainability of farmland productivity in mountainous arid area in the suburb of Beijing
	李玉义 1; 逄焕成 1; 周宪龙 2; 陈阜 3
ISSN	1003-7578
出版年	2009
卷号	23 期号:12 页码:6-10
中文摘要	选择延庆县作为研究对象,从生产力、稳定性、资源利用和经济可行性等方面对京郊山地旱作区农田生产力持续性进行了综合分析.结果表明:随着生产要素投入增加和生产条件改善,该地区粮食、油料作物单产持续增长,生产稳定性得到了提高;从资源利用角度来看,农田土壤中有机质和N含量增加,但P、K含量出现下降,春作物生育期降水基本满足作物生长需要,局部地区地下水资源出现超采,水资源供需矛盾加剧;从经济可行性角度来看,各作物单位面积净产值以蔬菜为最高,其次是饲料作物,春玉米最低.总体认为该区域农田生产力持续性呈良好态势.最后,针对区域农田生产力持续性的限制因素提出了具体对策,包括加强土地沙化和水土流失治理,合理保护农田生态环境;调整种植结构,大力发展特色种植业;推广农业污染减控技术,降低农田生态环境负荷;发展现代节水农业,合理利用和保护地下水资源.
英文摘要	Based on a systematic analysis of productivity, stability, resource utilization and economic viability,the sustainability of farmland productivity in mountainous arid area was evaluated through a case study in Yanqing County, Beijing. The result showed that farmland productivity and stability in this region was increasing. Organic matter and N content in the soil increased, heavy metal pollution was not above restriction value, but the content of P and K decreased. Rainfall could almost meet the water requirement of crop, groundwater was overexploited in some extent, but will not exhaust in the near future. In the aspect of economical viability, though the crop economic efficiency was relatively low, present growing model will continue in this region. It was concluded that sustainability of farmland productivity in this region is in a good state. Lastly, strategies on the sustainability of farmland productivity were raised against the problems. These strategies include land desertification and soil erosion control, crop structure adjustment, application of controlling non- point pollution technology, developing modern water - saving agriculture and controlling groundwater overuse.
中文关键词	山地旱作区 ; 农田生产力 ; 持续性 ; 对策 ; 京郊
英文关键词	mountainous and arid area farmland productivity sustainability strategies the suburb of Beijing
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:3881141
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223736
作者单位	1.中国农业科学院,农业资源与农业区划研究所, 北京 100081, 中国; 2.中国农学会学术交流处, 北京 100026, 中国; 3.中国农业大学农学与生物技术学院, 北京 100094, 中国
推荐引用方式 GB/T 7714	李玉义,逄焕成,周宪龙,等. 京郊山地旱作区农田生产力可持续性分析与对策以延庆县为例[J]. 中国农业大学,2009,23(12):6-10.
APA	李玉义,逄焕成,周宪龙,&陈阜.(2009).京郊山地旱作区农田生产力可持续性分析与对策以延庆县为例.,23(12),6-10.
MLA	李玉义,et al."京郊山地旱作区农田生产力可持续性分析与对策以延庆县为例".23.12(2009):6-10.