燕山北部山地华北落叶松人工林大气湿沉降的养分输入研究  

Study on nutrient input in atmospheric wet deposition of Laris principic-rupprechtii plantation in northern Yanshan Mountains

作　　者：田贺 张梦悦 李校[2] 卢金平[2] 奚悦 朱剑兴 许中旗[1] 贾彦龙[1] TIAN He;ZHANG Mengyue;LI Xiao;LU Jinping;XI Yue;ZHU Jianxing;XU Zhongqi;JIA Yanlong(College of Forestry,Hebei Agricultural University,Baoding 071000,China;Hebei Mulan Weichang State-owned Forest Farm Administration Bureau,Weichang 068400,China;Institute of Geography and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China)

机构地区：[1]河北农业大学林学院,河北保定071000 [2]河北省木兰围场国有林场管理局,河北围场068400 [3]中国科学院地理科学与资源研究所,北京100101

出　　处：《河北农业大学学报》2024年第4期36-44,共9页Journal of Hebei Agricultural University

基　　金：国家自然科学基金项目(31700377).

摘　　要：为了解燕山北部山地森林全年降水中养分的输入情况,本研究以燕山北部山地华北落叶松(Larix principisrupprechtii)人工林为研究对象,对2020年8月—2021年7月该地区的降水进行收集,并测定降水中大量元素、微量元素和重金属元素的含量,分析了各元素沉降的季节动态和元素间的相关性。结果表明:(1)大量元素沉降量整体表现为夏季>春季>秋季>冬季,其中氮、磷、钾、硫元素的总沉降量分别为9.87、0.04、2.28、240.59 kg/hm^(2)。(2)微量元素中大部分元素的沉降量同样表现为夏季最高;氯、铁、锰、锌、铜元素的沉降总量值分别为6582.39、12.76、6.26、30.32、3.91 g/hm^(2);硼元素的沉降量为春季最高,沉降总量值为68.18 g/hm^(2)。(3)重金属元素中铬、锂、镍3种元素的沉降量为夏季最高,总沉降量分别为2.30、2.42、1.64 g/hm^(2);镉、钴2种元素的沉降量为秋季最高,总沉降量分别为0.43、0.14 g/hm^(2);铅元素的沉降量为冬季最高,总沉降量为1.41 g/hm^(2)。(4)元素相关性分析结果显示,总磷(TP)、总氮(TN)与钾,氯元素、锌元素与锰元素都呈现正相关关系,所以大量元素中的氮、磷、钾,微量元素中的锰、锌、氯可能有着相同的来源或相似的迁移规律。本研究初步明确了燕山北部山地森林全年降水中的养分输入量,对于认识该地区森林的养分循环有重要意义。In order to study the nutrient input of annual precipitation in the northern mountain forest of Yanshan,this study collected precipitation from August 2020 to July 2021 in the Larix principis-rupprechtii plantation in the northern mountain of Yanshan.The contents of large amounts of elements,trace elements and heavy metals in precipitation were determined,and the seasonal dynamics of precipitation and the correlation between elements were analyzed.The results show that:(1)The overall precipitation of a large number of elements in seasons followed the sequence of summer,spring,autumn and winter.The total precipitation of N,P,K and S were 9.87,0.04,2.28 and 240.59 kg/hm^(2),respectively.(2)Most of the trace elements also showed the highest precipitation in summer,and the total precipitation values of chlorine,iron,manganese,zinc and copper were 6582.39,12.76,6.26,30.32 and 3.91 g/hm^(2),respectively.The precipitation of boron element was the highest in spring whose total precipitation value was 68.18 g/hm^(2).(3)The precipitation of three heavy metal elements chromium,lithium and nickel was the highest in summer,and their total precipitations were 2.30,2.42 and 1.64 g/hm^(2),respectively.The deposition amounts of cadmium and cobalt were the highest in autumn,and their total deposition amounts were 0.43 and 0.14 g/hm^(2),respectively.The precipitation of Pb element was the highest in winter,and the total precipitation was 1.41 g/hm^(2).(4)The element correlation results showed that TP,TN and K,Cl,Zn and Mn were all positively correlated,so nitrogen,phosphorus and potassium in a large number of elements,and manganese,zinc and chlorine in trace elements might have the same source or similar migration rules.This study preliminarily identified the nutrient input of annual precipitation in the northern mountain forest of Yanshan,which is of great significance for understanding the nutrient cycle of the forest in this area.

关 键 词：大气湿沉降 大量元素 微量元素 重金属元素 季节动态 

分 类 号：S791.22[农业科学—林木遗传育种]