Nutrient Characteristics of Throughfall in Larix olgensis Plantation
An experiment was conducted to study the variance in nutrients between rainfall and throughfall in Larix olgensis Henry plantations of different ages grown on different sites at Mengjiagang Forestry Centre in Kiamusze City in growing season. Results showed that the content of ammonium nitrogen (NH+4—N) in throughfall in young larch plantations was significantly higher than that in rainfall, while there were no significant differences in NH+4—N content between rainfall and through-fall in middle-aged larch plantations and near-mature larch plantations. No significant differences in contents of nitrate nitrogen (NO-3—N), total nitrogen (TN) , and total phosphorus (TP) were found between rainfall and throughfall in young, middle-aged and near-mature larch plantations. There were no significant differences in contents of NH+4—N, NO-3—N and TN between larch plantations on different site conditions, and an insignificant difference in TP content was also observed between middle-aged larch plantations on different site conditions, but significant differences in TP content were found for young and near-mature larch plantations between different site conditions. NH+4—N content in throughfall in young larch plantation was significantly higher than that in middle-aged and near-mature latch plantations, while there was no significant difference in NH+4—N content between middle-aged larch plantation and near-mature larch plantation. There were no significant differences in contents of NO-3—N, TN and TP between young, middle-aged, and near-mature larch plantations.
NETL
NSTL
万方数据
维普
