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内蒙典型草原鼠害
释义
内蒙典型草原鼠害
Encyclopedia
农学
〔草原鼠害〕
释
Injure in typical grassland,Inner Mongolia by rodent
内蒙典型草原鼠害
在内蒙古典型草原,由于鼠类大量啃食、挖掘、抛洒等行为形成大片斑块状次生裸地、致使草原植被大面积退化的现象和问题。内蒙古典型草原由鼠类引起植被盖度大幅度下降的年均发生率约为7%~25%。
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Joint FAO/WHO Expert Meeting on Microbiological Risk Assessment
Joint FAO/WHO Meeting on Pesticide Residues
Joint Fisheries Commission of PRC and Japan
Joint Fisheries Commission of P.R.Chinaandthe Socialist Republic of Vietnamfor the Beibu Gulf
Joint Fisheries Commission of the People's Republic of China and Republic of Korea
joint forest management
joint function
Joint Global Ocean Flux Study
join theorem
join theorem for the computably enumerable Turing degrees
join theorem for the local Turing degrees
joint implementation
Joint Information Systems Committee,JISC
jointing fertilizer
jointing of magnesium alloys
joint inquisition of nine ministers
Joint Institute for Nuclear Research
joint intention
Joint International Conference of PG and PSC
joint invariant
joint inversion of surface and borehole electrical data
joint inversion of surface and borehole magnetic data
joint investigation
joint investigations
joint labour
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