生物灾害科学
生物災害科學
생물재해과학
Jiangxi Plant Protection
2014年
1期
13-19
,共7页
李林懋%欧阳芳%戈峰%丁楠%门兴元
李林懋%歐暘芳%戈峰%丁楠%門興元
리림무%구양방%과봉%정남%문흥원
生物量%生态效率%草地%虫害
生物量%生態效率%草地%蟲害
생물량%생태효솔%초지%충해
biomass%ecological efficiency%grassland%damage by pest
根据我国农业部统计数据,结合全国草地覆盖遥感数据,结合全国草地覆盖遥感数据,利用生态能学方法,评估了2000-2010年虫害对我国草地生态系统生物量危害损失。结果表明:11年期间全国由于虫害造成草地生物量损失约为年均230.9万t,损失量呈现先上升后下降后上升再下降的波动趋势,年份间危害差异变化很大,最高年份(2008年),损失328.5万t,占我国牧草需求量的32.8%。区域草地虫害强度排序为:中部>西部>东部,西部和中部共占比例高达96%;华北>西北>东北>西南,其中内蒙古省年均损失量占全国总量的53.47%。这种特征与中国草被覆盖分布及防治科技发展程度密切相关。评估结果显示,我国草地生态系统虫害分布范围广,危害损失巨大,危害动态波动变化,应该加强对重点区域的草原虫害监测和预报,制定应对草原虫害治理策略。
根據我國農業部統計數據,結閤全國草地覆蓋遙感數據,結閤全國草地覆蓋遙感數據,利用生態能學方法,評估瞭2000-2010年蟲害對我國草地生態繫統生物量危害損失。結果錶明:11年期間全國由于蟲害造成草地生物量損失約為年均230.9萬t,損失量呈現先上升後下降後上升再下降的波動趨勢,年份間危害差異變化很大,最高年份(2008年),損失328.5萬t,佔我國牧草需求量的32.8%。區域草地蟲害彊度排序為:中部>西部>東部,西部和中部共佔比例高達96%;華北>西北>東北>西南,其中內矇古省年均損失量佔全國總量的53.47%。這種特徵與中國草被覆蓋分佈及防治科技髮展程度密切相關。評估結果顯示,我國草地生態繫統蟲害分佈範圍廣,危害損失巨大,危害動態波動變化,應該加彊對重點區域的草原蟲害鑑測和預報,製定應對草原蟲害治理策略。
근거아국농업부통계수거,결합전국초지복개요감수거,결합전국초지복개요감수거,이용생태능학방법,평고료2000-2010년충해대아국초지생태계통생물량위해손실。결과표명:11년기간전국유우충해조성초지생물량손실약위년균230.9만t,손실량정현선상승후하강후상승재하강적파동추세,년빈간위해차이변화흔대,최고년빈(2008년),손실328.5만t,점아국목초수구량적32.8%。구역초지충해강도배서위:중부>서부>동부,서부화중부공점비례고체96%;화북>서북>동북>서남,기중내몽고성년균손실량점전국총량적53.47%。저충특정여중국초피복개분포급방치과기발전정도밀절상관。평고결과현시,아국초지생태계통충해분포범위엄,위해손실거대,위해동태파동변화,응해가강대중점구역적초원충해감측화예보,제정응대초원충해치리책략。
With the statistics provided by National Ministry of Agriculture combined with the remote sensing data of grassland coverage, the grassland ecosystem biomass hazards of China during 2000 to 2010 was estimated in perspective of ecological energetics. Results showed 2309kt grass was lost annually by pests, which firstly increased and then decreased and then increased, and declined again with trend of fluctuation in this period of the given 11 years. 3.285 million tons were lost in the most severe year (2008) in which the proportion of grass loss account for about 32.8%of annual average grass demand of China. The general grass loss order was:Middle Region>Western Region>Eastern Region. The grass loss in both Western Region and Middle Region totally accounted for 96%. For seven national regions in China, the order was:Northern China>Northwestern China>Northeastern China>Southwestern China. Inner Mongolia accounted for an average annual loss of 53.47%. These features were closely related to the grassland distribution and control technology development in China. The evaluation results indicated that with the widely distribution of grassland pests and the increasingly huge and dynamic loss trend, grassland pest monitoring and forecasting of the key areas should be strengthened, and the main pest management strategies should be established specifically.