生态农业研究
生態農業研究
생태농업연구
ECO-AGRICULTURE RESEARCH
2000年
1期
60
,共1页
生态环境%变迁%病虫害%变化趋势
生態環境%變遷%病蟲害%變化趨勢
생태배경%변천%병충해%변화추세
Eco-environment%Changes
通过对河南省新乡地区历年资料分析表明，近40年来该地区主要农业生态环境要素有明显变 化。如年日照时数和年均风速逐渐下降，而相对湿度呈上升趋势，进而引起地区性的水面蒸 发量下降。气象要素的变化及灌溉量、施N量的增加，促使某些主要农作物病虫害加重，故 培育高抗病虫害能力的作物新品种，实施节水灌溉及经济合理施用N肥对缓解该地区的病虫 危害将十分有益
通過對河南省新鄉地區歷年資料分析錶明，近40年來該地區主要農業生態環境要素有明顯變 化。如年日照時數和年均風速逐漸下降，而相對濕度呈上升趨勢，進而引起地區性的水麵蒸 髮量下降。氣象要素的變化及灌溉量、施N量的增加，促使某些主要農作物病蟲害加重，故 培育高抗病蟲害能力的作物新品種，實施節水灌溉及經濟閤理施用N肥對緩解該地區的病蟲 危害將十分有益
통과대하남성신향지구력년자료분석표명，근40년래해지구주요농업생태배경요소유명현변 화。여년일조시수화년균풍속축점하강，이상대습도정상승추세，진이인기지구성적수면증 발량하강。기상요소적변화급관개량、시N량적증가，촉사모사주요농작물병충해가중，고 배육고항병충해능력적작물신품충，실시절수관개급경제합리시용N비대완해해지구적병충 위해장십분유익
Based on long-term statistical data provided by specific department in Xinxian g region of Henan province,it is showed that the main factors related with agric ultural eco-environment have changed greatly in recent decades.For example,annu al sunshine hours and annual average wind speed decreased gradually,while the re lative humidity increased slowly with time,which caused regional decrease of eva poration from water surface.Moreover,some plant diseases and insect pests are be coming more serious than ever owing to the changed meteorological factors,the de velopment of irrigation system and the increased N application rate.Effective me asurements for lessening the danger of plant diseases and insect pests are to es tablish water-saving agriculture and economic fertilization systems and to evol ve new varieties with high pest resistance.
