木麻黄连栽对沿海沙地土壤养分含量及酶活性的影响

doi:10.11707/j.1001-7488.2003S106

林业科学 ›› 2003, Vol. 39 ›› Issue (zk): 32-37.doi: 10.11707/j.1001-7488.2003S106

木麻黄连栽对沿海沙地土壤养分含量及酶活性的影响

谭芳林¹ 李志真² 叶功富³ 林捷⁵ 高美玲⁴

福建省林业科学研究院,福州350012；福建惠安赤湖林场,惠安362100

收稿日期:2003-03-21 修回日期:1900-01-01 出版日期:2003-12-25 发布日期:2003-12-25

THE EFFECT OF CONTINUOUSLY PLANTING CASUARINA EQUISETIFOLIA ON THE NUTRITION CONTENT AND ENZYME ACTIVITIES IN SANDY SOIL OF COASTAL AREAS

Tan Fanglin²,Li Zhizhen²,Ye Gongfu³,Lin Jie⁵,Gao Meiling⁴

Fujian Academy of Forestry Fuzhou350012;Hui'an Protection Forest Farm,Fujian Province Hui'an362100

Received:2003-03-21 Revised:1900-01-01 Online:2003-12-25 Published:2003-12-25

摘要/Abstract

摘要：

选择东山1代、2代和惠安1代、2代、3代林分为研究对象,分别采集土壤进行对比研究。结果表明,木麻黄多代连栽后:(1)随着栽植代数的增加,沙地土壤的pH值表现为降低趋势,而土壤的水解性总酸度、交换性总酸度、交换性氢和交换性铝含量等指标随着木麻黄连栽代数的增加而增大;(2)沙地土壤中水解性氮、铵态氮、有效磷、速效钾、全碳和全氮的含量随着代数的增加而降低,而且木麻黄连栽对表层土壤中上述养分的降低更为显著,但木麻黄连栽对缓效钾的影响并不明显。(3)土壤中阳离子交换总量逐代增大,这主要与交换性钙和水解性总酸度逐代增大有关。(4)沙地土壤中脲酶的活性没有明显的变化,而磷酸酶、多酚氧化酶和过氧化物酶的活性则随代数的增加而降低。

关键词: 木麻黄, 连栽, 土壤养分含量, 土壤酶活性

Abstract:

It is very important for regeneration and transformation of Casuarina equisetifolia protection forest and making measurements for forest management to study the soil fertility of continuously planting forest. In the study, the pure C.equisetifolia plantation of first and second generation at Dongshan, the first, second, and third generation at Hui′an were selected as the studied objects. And the properties of soil collected from those plantations were compared. The results showed as follows: (1) It made decrease on pH value and increments on hydrolytic acidity, exchangeable acidity, exchangeable H⁺, and exchangeable Al³⁺ in soil to continuously planting C. equisetifolia in coastal areas; (2)The hydrolytic N, NH₂-N, available P, available K, total C, and total N in soil were decreased by continuously planting C.equisetifolia, and those nutrition content in the surface soil were decreased more than that in the deeper layer of soil, but there was no obvious effect on slow-leased K; (3) The CEC of soil were increased by continuously planting, and this was correlated with the increment of exchangeable Ca and exchangeable Mg; (4) The activities of phosphataese, polyphenol oxidase, and peroxidase were decreased by continuously planting C. equisetifolia, however, there was no obvious change on activity of urease.

Key words: Casuarina equisetifolia, Continuously planting, Soil nutrition content, Soil enzyme activity

谭芳林李志真叶功富林捷高美玲. 木麻黄连栽对沿海沙地土壤养分含量及酶活性的影响[J]. 林业科学, 2003, 39(zk): 32-37.

Tan Fanglin;Li Zhizhen;Ye Gongfu;Lin Jie;Gao Meiling. THE EFFECT OF CONTINUOUSLY PLANTING CASUARINA EQUISETIFOLIA ON THE NUTRITION CONTENT AND ENZYME ACTIVITIES IN SANDY SOIL OF COASTAL AREAS[J]. Scientia Silvae Sinicae, 2003, 39(zk): 32-37.

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木麻黄连栽对沿海沙地土壤养分含量及酶活性的影响

THE EFFECT OF CONTINUOUSLY PLANTING CASUARINA EQUISETIFOLIA ON THE NUTRITION CONTENT AND ENZYME ACTIVITIES IN SANDY SOIL OF COASTAL AREAS

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