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- W2349516191 abstract "In order to understand the effects of non-grazing on productivities of typical steppes,the biomass and NPP(net primary productivities) of typical steppes with different non-grazing periods were studied.The results showed that non-grazing led to higher biomass,and the longer the period of non-grazing was,the higher the biomass was.The biomass was 3771.69g/m2 after non-grazing for 17 years,3248.33g/m2 after non-grazing for 7 years,2711.06g/m2 after non-grazing for 2 years,2348.50g/m2 for grazing.For the typical steppe,the underground biomass was higher than aboveground.The NPP of three types of non-grazing steppes were higher than the grazing one,and the formers were 1.23 times,1.20 times,1.08 times as much as the latter respectively.The production valuation was ranked in descending order as follows: non-grazing for 17 yrs(1011.68yuan/hm2·a)non-grazing for 7 yrs(600.32yuan/hm2·a) non-grazing for 2 yrs(521.52yuan/hm2·a)grazing(301.28yuan/hm2·a).It is concluded that non-grazing affects the NPP and biomass of steppes remarkably,and non-grazing can lead to the restoration of production ability of steppes." @default.
- W2349516191 created "2016-06-24" @default.
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- W2349516191 date "2011-01-01" @default.
- W2349516191 modified "2023-09-26" @default.
- W2349516191 title "Effects of Different Non-grazing Periods on the Net Primary Productivities of the Typical Steppes" @default.
- W2349516191 hasPublicationYear "2011" @default.
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