Agricultural and environmental challenges in agroecosystems

来源 :土壤圈(英文版) | 被引量 : 0次 | 上传用户:jinmeng79
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Feeding the increasing global population,preventing environmental degradation,and protecting the planet from climate change are the three most significant challenges facing agriculture and its sustainability.Agricultural prac-tices determine the safety of agricultural products and are integral to the status of the global environment.In China,the Green Revolution has drastically increased the productivity of agriculture,similar to the trend in the Western world.However,the excess use of chemical fertilizers,herbicides,and pesticides has deteriorated the soil quality,resulting in serious agricultural and environmental problems.The severi-ty of these issues has attracted public and media attention.The key challenge for China is to grow food for feeding a population of 1.3 billion while simultaneously decreasing the negative environmental impacts of agricultural production.In response to tremendous efforts by the government,sci-entific community,and stockholders in the past decade to address this challenge,current progress has made China an ideal place for discussing agro-environmental issues.
其他文献
  目的:探讨急性缺血性脑血管病在急诊绿色通道下采用血管内介入灌注的临床疗效。方法:将急性缺血性脑血管病随机分为绿色通道组和非绿色通道组,观察两组症状发作-进入医院急
  目的:系统评价β受体阻滞剂治疗恶性室性心律失常的临床疗效及安全性.方法:电子搜索中国期刊全文数据库(CNKI,1979.01~2012.01)、Pubmed (1978~2012.01)、The Cochrane Libra
  目的:应用自然对数转换简明损伤定级的损伤严重度评分,在预测死亡率明显优于ISS/NISS评分法.方法:自然对数损伤严重度评分(LISS)被定义为:简明损伤定级(AIS)取自然对数后的5
会议
健康长寿三要素一、进取心理。人体的疾病大致可分为躯体疾病、神经官能症和心身疾病三大类,而且都与心理因素有密切的关系。良好的心理状态可促使这三个系统协调配合。而进取
  目的:Several molecular epidemiological studies have been conducted to examine the association between MTHFRA1298C polymorphism and stroke,but the Results r
会议
  目的:探讨主动脉夹层患者发病与诱发因素的关系,并研究其诱发因素与分型之间的关系。方法:对2011-2012年就诊的14例主动脉夹层患者的发病诱发因素进行归纳,并通过螺旋CT、超
我院1992年通过对4000名青年学生、及部分工厂工人的健康检查。HBV阳性者共计300人,占体检人数的7.5%。通过此项调查发现合肥地区的HBV携带率大约为7.5 %,现分析报告如下: 材
  目的:探讨对重症患者应用单导丝幽门后置管法补救性放置螺旋型鼻肠管的可行性、安全性和有效性.方法:对58例放置螺旋型鼻肠管但不能自行通过幽门的重症患者,采用床边单导丝
会议
  目的:探讨胰岛素泵联合静脉补液治疗糖尿病酮症酸中毒的临床治疗效果.方法:回顾性分析我院收治的97例糖尿病酮症酸中毒患者,治疗组58例,采用胰岛素泵与静脉补液联合治疗;对照