Relationships of Soil Nutrients and Enzyme Activities Under Different Afforestation Models in Ili River Valley

SANG Baye; ZHU Yuwei; CHEN Qimin; WANG Yonghong; CHU Fenfei

doi:10.13961/j.cnki.stbctb.2018.03.037

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Relationships of Soil Nutrients and Enzyme Activities Under Different Afforestation Models in Ili River Valley

- Relationships of Soil Nutrients and Enzyme Activities Under Different Afforestation Models in Ili River Valley
- Bulletin of Soiland Water Conservation Vol. 38, Issue 3, Pages: 228-232(2018)
- 作者机构：
  
  新疆林科院造林治沙研究所,新疆,乌鲁木齐,830063
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2018.03.037
  CLC：
- Published：2018
- 稿件说明：
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SANG Baye, ZHU Yuwei, CHEN Qimin, et al. Relationships of Soil Nutrients and Enzyme Activities Under Different Afforestation Models in Ili River Valley[J]. Bulletin of Soiland Water Conservation, 2018, 38(3): 228-232.
DOI：

SANG Baye, ZHU Yuwei, CHEN Qimin, et al. Relationships of Soil Nutrients and Enzyme Activities Under Different Afforestation Models in Ili River Valley[J]. Bulletin of Soiland Water Conservation, 2018, 38(3): 228-232. DOI： 10.13961/j.cnki.stbctb.2018.03.037.

摘要

[目的]研究伊犁河谷5种典型造林模式下土壤养分和酶活性空间特征，为伊犁河谷地区造林树种的搭配和布局提供依据。[方法]通过采样和室内测试分析，对0-20和20-40 cm土壤的化学性质及酶活性等指标进行分析测定，并对其相关性进行研究。[结果]0-20的土层土壤酶活性更强，养分含量也更高；各模式土壤养分含量差异显著，榆树防护林土壤碱解氮和有效磷含量最高，全钾和有效钾处于较高水平，林草间作用材林土壤全氮、全磷和有机质含量最高，碱解氮也处于较高水平；土壤酶活性与土壤养分有一定的相关，其中脲酶与全磷、碱解氮、速效磷和有机质显著正相关，过氧化氢酶与全钾和速效钾呈显著正相关，与全氮、全磷、碱解氮和有机质呈显著负相关。[结论]土壤酶活性与土壤养分间关系紧密，并可较好表征土壤肥力水平，可广泛应用于森林土壤的肥力水平评价。

Abstract

[Objective] In order to provide scientific basis for selection and collocation of afforestation tree species in the Ili River valley

soil nutrients content and enzymes activity characteristics of five typical afforestation models were studied.[Methods] Soil chemical properties and enzymes activities at 0-20 cm and 20-40 cm depths were investigated

and the correlations between them were analyzed.[Results] Soil enzyme activities was greater and nutrient content was higher in 0-20 cm layer. Soil nutrient contents were significantly different among five afforestation models. The content of soil available nitrogen(N) and phosphorus(P) in elm shelterbelt was the highest

and total potassium(K) and available K was also at a higher level. The content of soil total N

total P and organic matter in forest grass inter-cropping system was the highest among five models

and soil available N was also at a higher level. A correlation had been found between soil enzyme and soil nutrient. Soil urease showed positive relationships with total P

available N

available P and organic matter. Soil peroxidase showed positive relationships with total K and available K

while negative relationships with total N

total P

available N and organic matter.[Conclusion] A close relationship has been found between soil enzyme and nutrient. Soil enzymes activity can be widely used to evaluate the forest soil fertility.

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