Effects of Granulated Straw and Fungus Residue Amendments on Soil Organic Carbon Pool in Alpine Sandy Land

KONG Fanlei; LIU Xiaolin; CHEN Wei; CHEN Xiang; CHEN Changhua; YUAN Jichao; LI Yuyi

doi:10.13870/j.cnki.stbcxb.2020.04.042

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Effects of Granulated Straw and Fungus Residue Amendments on Soil Organic Carbon Pool in Alpine Sandy Land

更新时间：2025-03-12

- Effects of Granulated Straw and Fungus Residue Amendments on Soil Organic Carbon Pool in Alpine Sandy Land
- Vol. 34, Issue 4, Pages: 288-294(2020)
- 作者机构：
  
  1. 四川农业大学农学院,成都,611130
  2. 巴中市农业技术推广中心,四川,巴中,636000
  3. 中国农业科学院农业资源与农业区划研究所,北京,100081
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2020.04.042
  CLC：
- Published：2020
- 稿件说明：
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KONG Fanlei, LIU Xiaolin, CHEN Wei, et al. Effects of Granulated Straw and Fungus Residue Amendments on Soil Organic Carbon Pool in Alpine Sandy Land[J]. 2020, 34(4): 288-294.
DOI：

KONG Fanlei, LIU Xiaolin, CHEN Wei, et al. Effects of Granulated Straw and Fungus Residue Amendments on Soil Organic Carbon Pool in Alpine Sandy Land[J]. 2020, 34(4): 288-294. DOI： 10.13870/j.cnki.stbcxb.2020.04.042.

摘要

采用田间定位试验研究了秸秆颗粒（JG）和菌渣颗粒（JZ）改良剂（施用量分别为6，12，18，24 t/hm2）对川西北高寒沙地土壤碳库的影响。结果表明：施用JG和JZ改良剂可显著提高沙化土壤有机碳含量、有机碳储量、活性碳、土壤微生物量碳、微生物熵和碳库管理指数，其中对土壤微生物量碳和微生物熵的提升效果最为显著。与CK相比，施用第2年JG处理土壤有机碳含量、有机碳储量、活性有机碳、碳库管理指数平均增加96.2%，100.0%，157.1%，169.4%，JZ处理平均增加69.2%，66.3%，85.7%，81.7%；而JG处理土壤微生物量碳、微生物熵分别较CK平均增加934.0%，433.0%，JZ处理平均增加956.2%，546.4%。JG改良剂对土壤有机碳库组分和碳库管理指数的提升效果优于JZ，而JZ改良剂更有利于提升土壤微生物量碳含量和土壤有机碳的周转速率。秸秆和菌渣改良剂均可增加沙化土壤有机碳库各组分含量，提高土壤有机碳周转速率和碳库管理指数，具有快速培肥沙化土壤的效果。

Abstract

In order to study the effects of granulated straw (JG) and fungus residue (JZ) amendments (6

24 t/hm2

respectively) on soil carbon pool of alpine sandy land in northwest Sichuan

a field location experiment was conducted. The results showed that the application of JG and JZ amendments could significantly improve the organic carbon

organic carbon storage

activated carbon

soil microbial biomass carbon

microbial entropy and carbon pool management index of desertification soil

and the enhancement effect on soil microbial biomass carbon and microbial entropy was the most significant. Compared with CK

the soil organic carbon

organic carbon storage

active organic carbon

and carbon storage management index of JG increased by 96.2%

100.0%

157.1%

169.4% on average

while those of JZ treatment increased by 69.2%

66.3%

85.7% and 81.7% in the second year after application amendments. Compared with CK

the microbial biomass carbon and microbial entropy of JG increased by 934.0%

433.0% respectively

while the microbial biomass carbon and microbial entropy of JZ increased by 956.2% and 546.4% on average. JG amendment had a better effect on the improvement of soil organic carbon storage components and carbon pool management index than JZ

while JZ amendment was beneficial to the improvement of soil microbial biomass carbon content and soil organic carbon turnover rate. Both granulated straw and fungus residues could increase the component content of soil organic carbon pool and improved the turnover rate of soil organic carbon and carbon pool management index

which also could fertilize the sandy soil rapidly.

关键词

Keywords

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