论文部分内容阅读
禄劝县人工造林面积逐年增长,在改善生态环境方面发挥了重要作用,林业面积的扩大也导致了有害生物发生频次、危害面积明显提升,严重影响了林业功能的有效发挥.本文结合禄劝县林业发展情况,分析了有害生物产生的原因,并提出了相应的防治技术和方法,以作为参考.
浅谈禄劝县林业有害生物防治技术与方法
【摘 要】
：
禄劝县人工造林面积逐年增长,在改善生态环境方面发挥了重要作用,林业面积的扩大也导致了有害生物发生频次、危害面积明显提升,严重影响了林业功能的有效发挥.本文结合禄劝县林业发展情况,分析了有害生物产生的原因,并提出了相应的防治技术和方法,以作为参考.
【机 构】
：
云南省昆明市禄劝县屏山街道办事处,云南禄劝,651500
【出 处】
：
农家参谋
【发表日期】
：
2022年2期
其他文献
From 1952 to 2022, the University of Science and Technology Beijing (USTB) has gone through an in-credible journey of 70 years. From its beginning as the Beijing Institute of Iron and Steel Technology, China\'s first higher institute of mining and metal
期刊
Revealing the role of local shear strain partition of transformable particles in a TRIP-reinforced b
The coupling effects of the metastable austenitic phase and the amorphous matrix in a transformation-induced plasticity (TRIP)-re-inforced bulk metallic glass (BMG) composite under compressive loading were investigated by employing the digital image corre
The oxidation behaviors of three austenitic cast steels with different morphologies of primary carbides at 950℃in air were investig-ated using scanning electron microscopy, energy dispersive spectroscopy, and focused ion beam/transmission electron microsc
Recent progress in the structure optimization and development of proton-con-ducting electrolyte mate
This work reviews technologies that can be used to develop low-temperature solid oxide cells (LT-SOCs) and can be applied in fuel cells and electrolyzers operating at temperatures below 500℃, thus providing a more cost-effective alternative than conventio
Evaluating data-driven algorithms for predicting mechanical properties with small datasets: A case s
Data-driven algorithms for predicting mechanical properties with small datasets are evaluated in a case study on gear steel hardenab-ility. The limitations of current data-driven algorithms and empirical models are identified. Challenges in analysing smal
本文根据个人在工作过程中积累的经验及掌握的知识技能,结合黑龙江友谊县农业植保污染情况,深入探讨引起农业植保污染的主要原因,立足于确立科学合理的减排思路,采取有效手段减少对生态环境的污染,促进农业稳健持续发展.
针对常规生活污水CODCr、BOD5、氮磷浓度高的特点,以某部队驻地生活污水为例,采用改良AAO处理工艺对生活污水进行处理.介绍了该工艺的流程、设计参数及运行效果,运行结果表明,出水CODcr、BOD5、总氮、氨氮、总磷等指标可达到《城镇污水处理厂污染物排放标准》GB/T18918-2002中的一级A标准,工艺运行稳定.