北方草地及农牧交错区草地植被碳储量及其影响因素

辛晓平,丁蕾,程伟,朱晓昱,陈宝瑞,刘钟龄,何广礼,青格勒,杨桂霞,唐华俊

Biomass Carbon Storage and Its Effect Factors in Steppe and Agro-Pastoral Ecotones in Northern China

XIN XiaoPing,DING Lei,CHENG Wei,ZHU XiaoYu,CHEN BaoRui,LIU ZhongLing,HE GuangLi,QING GeLe,YANG GuiXia,TANG HuaJun

表2 不同区域草地地上生物量（AGB）与环境因子的相关系数

Table 2 Correlation coefficient between above-ground biomass (AGB) and environment factors

相关系数 Correlation Coefficient 草原区 Steppe area 荒漠区 Desert area 农牧交错区 Agro-pasture area 研究区 Research region 年均气温MAT -0.65*** -0.69*** -0.53*** -0.46*** 年降水量MAP 0.50*** 0.81*** 0.53*** 0.72*** 家畜承载量Livestock capacity 0.09 0.45* 0.34*** 0.25*** 砂砾含量Sand% -0.65*** -0.63** -0.23** -0.42*** 黏粒含量Clay% 0.54*** 0.73*** 0.46*** 0.59***