文献类型：期刊文献

中文题名：浙北毛竹林地表径流氮磷流失特征

英文题名：Characteristics of nitrogen and phosphorus loss by surface runoff in Moso bamboo stands in northern Zhejiang Province

作者：汪庆兵[1] 李泽波[1] 张建锋[1] 陈光才[1] 吴灏[1] 孙慧[1] 王丽[1] 潘春霞[2]

第一作者：汪庆兵

机构：[1]中国林科院亚热带林业研究所;[2]浙江省安吉县林业局

年份：2014

卷号：33

期号：9

起止页码：2471-2477

中文期刊名：生态学杂志

外文期刊名：Chinese Journal of Ecology

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：林业公益性行业科研专项(201104055);国家科技支撑专题"村镇景观建设中的生物多样性保护技术"(2012BAJ24B0504);中央级公益性科研院所基金重点项目(RISF2013001)资助

语种：中文

中文关键词：集水区;毛竹林;地表径流;氮;磷

外文关键词：watershed; Moso bamboo forest; surface runoff; nitrogen; phosphorus

分类号：S715.3

摘要：氮、磷在水-土界面会发生复杂的迁移转化作用,了解集水区氮、磷的迁移流失特征,对区域面源污染的治理意义重大。本研究通过在毛竹（Phyllostachys edulis）林地设置径流小区5个（5 m×20 m）,于2012年5月—2013年10月定期采集径流水样测试,分析了浙北安吉赋石水库集水区毛竹林地表径流氮、磷的流失特征。结果表明：观测到16次地表径流事件中,各径流小区径流水量差别较大,最大为0.98 m3;其中氮是主要的流失元素,硝态氮（NO3--N）、铵态氮（NH4＋-N）、总氮（TN）和总磷（TP）浓度分别在0.039-1.017、0.039-2.547、2.069-5.393和0.020-1.205 mg·L-1,其浓度受降雨量和径流水量影响较大;用二次函数可以较好地拟合氮、磷流失量与径流水量之间的相关关系,由于台风“菲特”的影响,2012年10月12日径流水量达到最大值,平均为0.81 m3,TN和TP的流失量分别为2.300和1.716 g。本研究表明,在植物非生长季和暴雨时期,该集水区毛竹林氮、磷随径流流失风险大,对赋石水库水体富营养化形成潜在压力。
Nitrogen （N） and phosphorus （P） migration and transformation are complex in the water-soil interface. It is significant to probe the characteristics of N and P losses in watersheds for managing non-point source pollution. In this paper, five runoff plots （5 m×20 m） were set to examine runoff in a Moso bamboo （Phyllostachys edulis） forest stand around the Fushi Reservoir watershed in northern Zhejiang Province from May 2012 to October 2013, and the migration characteristics of N and P losses were analyzed in the Moso bamboo forest stand. The results showed that, in the 16 observed surface runoff events, the differences in surface runoff amount were obvious among the different plots, with the maximum runoff being 0.98 m3. N was the main lost nutrient element in the Moso bamboo forest stand. The concentrations of NO3 --N, NH4 ＋-N, TN and TP in the runoff water ranged from 0. 039-1. 017, 0. 039-2. 547, 2. 069-5. 393 and 0. 020- 1. 205 mg · L-1, respectively. These variables were greatly influenced by the rainfall and runoff water. Moreover, the correlation between N or P loss and runoff amount was properly fitted by a quadratic equation. On October 12th, 2012, due to typhoon ＂FITOW＂, the runoff reached the maximum with an average of 0.81 m3, and the losses of TN and TP were 2. 300 and 1. 716 g, respectively. Hence, we concluded that during the period of plant non-growing season and heavy rain, there was a great risk of N and P losses with runoff in this region, causing potential nonpoint source pollution around the Fushi Reservoir.