摘要
为了解千岛湖地区天然次生林地枯落物积累及土壤基本状况， １９９８ 年春采用标准地方法对千岛湖３ 个林场进行了初步调查和采样分析。结果表明： 林地枯落物营养元素含量和总贮量均呈氮＞ 钙＞ 钾＞ 镁＞ 锰＞ 磷＞ 锌的排序， 林地枯落物中这些营养元素的总量依次为６７０３ ｋｇ·ｈｍ － ２ ， ５２６４ ｋｇ·ｈ ｍ － ２ ， ２３２８ ｋｇ·ｈｍ － ２ ， １２１０ｋｇ·ｈｍ － ２ ， ３５７ ｋｇ·ｈ ｍ － ２ ， ３０１ ｋｇ·ｈ ｍ － ２ 和０１９ ｋｇ·ｈ ｍ － ２ 。３ 个林场土壤养分差异较大， 说明各林场间次生林立地类型和树种结构有很大不同。但从每个林场单独来看， 阔叶林地养分状况明显好于马尾松林地和混交林地。表４
Investigation of tree structure and test of soil samples were conducted by means of sample plot method in three forest farms in Qiandaohu Lake area in spring 1998,in order to understand accumulation of litter and soil basic situation.The results showed that nutrient elements contained in litter were different either in total amount or in content,and the order was N,Ca,K,Mg,Mn,P,Zn.The total amount was 67 03 kg·hm -2 ,52 64 kg·hm -2 ,23 28 kg·hm -2 ,12 10 kg·hm -2 ,3 57 kg·hm -2 ,3 01 kg·hm -2 ,0 19 kg·hm -2 ,respectively.Soil nutrient content of three forest farms appeared apparent difference,owing to different sites and structure of seccndary forests.As to individual farm soil nutrient level was better under hardwood forest than under mixed forest or pure Pinus massoniana forest.
出处
《浙江林学院学报》
CSCD
1999年第3期260-264,共5页
Journal of Zhejiang Forestry College
基金
浙江省教育委员会资助
关键词
天然林
次生林
枯落物
土壤化学分析
千岛湖
natural forest:secondary forests
litter
soil chemical analysis
Qiandaohu Lake
