三江平原中部耕作区水—土壤—植被耦合关系评价

何金宝, 孔繁鹏, 赵建, 刘博文, 刘洪博

Assessment of water-soil-vegetation coupling characteristics in the central farming areas of the Sanjiang Plain

HE Jin-Bao, KONG Fan-Peng, ZHAO Jian, LIU Bo-Wen, LIU Hong-Bo

表1 适宜性指标上、下限

Table 1 Upper and lower limits of suitability indicators

指标 w(Se)/ 10-6 w(I)/ 10-6 w(F)/ 10-6 容重/ (g·cm-3) pH 黏粒 /% 粉粒 /% 砂粒 /% 上限值 0.175 1.5 500 1.2 6.5 40 40 20 下限值 0.4 5 550 1.4 7.5 55 55 50