论文部分内容阅读
对该区5个不同森林立地土壤进行定位研究。结果表明,试验林地枯枝落叶层总贮量在 11~114T·ha~(-1);0~40cm 土层在生长季节里的 pH 值变化在 5.0~7.0 之间,水解氮 80~1400kgha~(-1) 、有效磷 0~1000 kgha~(-1) 、速效钾 0~600 kgha~(-1) 、可溶性钙 300~32000 kgha~(-1)、可溶性镁 100~9300 kgha~(-1) 、可溶性高铁 30~9700 kgha~(-1) 、可溶性亚铁 5~2700 kgha~(1-)。0~40 cm 土层中有效养分贮量顺序:可溶性铝>可溶性高铁>可溶性镁>可溶性亚铁>水解氮>有效磷>速效钾。
Five different forest sites were located in this area. The results showed that the total litter of the litter in the forestland was 11 ~ 114T · ha -1; the pH value of 0-40cm soil layer in the growing season was between 5.0-7.0, the hydrolysis nitrogen was 80-1 1400kg ha ~ (-1), 0 ~ 1000 kg ha ~ (-1) of available phosphorus, 0 ~ 600 kg ha ~ (-1) of soluble potassium, 300 ~ 32000 kg ha ~ (-1) of soluble calcium, 1), soluble high-speed rail 30 ~ 9700 kgha ~ (-1), soluble ferrous iron 5 ~ 2700 kgha ~ (1-). The order of available nutrients in 0 ~ 40 cm soil layer was soluble aluminum> soluble high iron> soluble magnesium> soluble ferrous iron> hydrolyzed nitrogen> available phosphorus> available potassium.