湖南祁阳县土壤酸化主要驱动因素贡献解析
周海燕,徐明岗,蔡泽江,文石林,吴红慧

Quantitative Analysis of Driving-Factors of Soil Acidification in Qiyang County, Hunan Province
ZHOU HaiYan,XU MingGang,CAI ZeJiang,WEN ShiLin,WU HongHui
表1 主要农作物和柑橘的年度养分输入量
Table 1 Element input of main crops and orange
输入形式
Input
作物类型
Crop
N
(kg·hm-2·a-1
P2O5
(kg·hm-2·a-1
K2O
(kg·hm-2·a-1
Ca
(kg·hm-2·a-1
Mg
(kg·hm-2·a-1
化肥带入
Chemical fertilizer input
水稻 Rice 180 59 78 1.4 -
玉米Corn 216 65 42 1.6 -
花生Peanut 120 52 70 1.2 -
油菜Rape 160 51 74 1.2 -
甘薯Sweet potato 102 45 51 1.1 -
大豆Soybean 165 41 41 1.0 -
柑橘Citrus 239 83 93 2.0 -
大气沉降
Atmospheric deposition
47.6 - 2.8 15 2.4