本文選題：降水量 + 草原生產(chǎn)力�。� 參考：《西北農(nóng)林科技大學(xué)學(xué)報(bào)(自然科學(xué)版)》2017年04期

【摘要】：【目的】分析內(nèi)蒙古正藍(lán)旗降水量對(duì)草原植被生產(chǎn)力的影響,為草原的合理規(guī)劃、利用以及草原生態(tài)保護(hù)提供科學(xué)參考�！痉椒ā炕�2000-2013年正藍(lán)旗年降水量、生長(zhǎng)季降水量(4-8月)和不同類型草原(低地草甸、溫性典型草原和溫性草甸草原)生產(chǎn)力數(shù)據(jù),采用回歸分析的方法探討該地區(qū)2000-2013年降水量對(duì)草原生產(chǎn)力的影響。【結(jié)果】1)年降水量和生長(zhǎng)季降水量均與草原生產(chǎn)力呈正相關(guān)關(guān)系,且生長(zhǎng)季降水量分別與草甸草原、典型草原和低地草甸生產(chǎn)力構(gòu)建的回歸模型相關(guān)性(R分別為0.564,0.826和0.845),略高于年降水量與上述3種類型草原生產(chǎn)力構(gòu)建的模型(R分別為0.569,0.820和0.826),但是二者差異不顯著。2)年降水量和生長(zhǎng)季降水量對(duì)不同類型草原生產(chǎn)力的影響程度均不同,二者與不同類型草原生產(chǎn)力的相關(guān)系數(shù)均為低地草甸典型草原草甸草原。【結(jié)論】草原生產(chǎn)力的年際變化受降水量年際波動(dòng)的影響,且年降水量和生長(zhǎng)季降水量對(duì)草原生產(chǎn)力的影響程度并沒(méi)有明顯差異,但二者對(duì)典型草原和低地草甸生產(chǎn)力的影響均明顯大于草甸草原。
[Abstract]:[objective] to analyze the effect of precipitation in Zhenglan Banner of Inner Mongolia on grassland vegetation productivity, and to provide a scientific reference for the rational planning, utilization and ecological protection of grassland. [methods] based on the annual precipitation of Zhenglan Banner from 2000 to 2013,Data on productivity of different types of grasslands (lowland meadow, temperate typical steppe and temperate meadow grassland),The effects of precipitation on grassland productivity from 2000 to 2013 in this area were studied by regression analysis. [results] 1) Annual precipitation and growth season precipitation were positively correlated with grassland productivity, and the precipitation in growing season was correlated with meadow grassland, respectively.The correlation R of regression model constructed by typical grassland and lowland meadow productivity was 0.5640.826 and 0.845m, respectively, which was slightly higher than that of annual precipitation and the model constructed by the above three types of grassland productivity (0.5690.8020 and 0.826g, respectively), but the difference between the two models was not significant.The effects of annual precipitation and growing season precipitation on the productivity of different types of steppe were different.The correlation coefficients between the two factors and the productivity of different types of steppe are both lowland meadow steppe. [conclusion] the interannual variation of grassland productivity is affected by the interannual fluctuation of precipitation.The effect of annual precipitation and growing season precipitation on grassland productivity was not significantly different, but the effects of annual precipitation and growing season precipitation on the productivity of typical grassland and lowland meadow were obviously greater than those of meadow grassland.
【作者單位】： 中國(guó)科學(xué)院內(nèi)蒙古草業(yè)研究中心;內(nèi)蒙古自治區(qū)農(nóng)牧業(yè)科學(xué)院;
【基金】：內(nèi)蒙古科技廳應(yīng)用技術(shù)研究與開(kāi)發(fā)項(xiàng)目“內(nèi)蒙古草原自然資源資產(chǎn)負(fù)債表編制方式研究與示范”
【分類號(hào)】：S812
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本文編號(hào)：1756898