不同施肥强度和更新方式对杉木人工林碳固存的影响
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摘要
研究不同施肥强度和更新方式对杉木人工林固碳的长期影响,对提升人工林固碳潜力具有重要意义。应用FORECAST模型模拟了不同施肥强度和更新方式对杉木人工林固碳的长期影响,达到优化经营杉木人工林的目标。研究表明,在中等立地条件下,150 a不同施肥强度处理对总固碳量的影响依次是:60 kg/hm~2N>120 kg/hm~2N>30 kg/hm~2N>0 kg/hm~2N,适宜的施肥可以提高土壤有机碳储量,如果过量会造成土壤"氮饱和"效应。杉木实生林生物碳储量要高于萌芽林,但萌芽林在水土保持、土壤养分及生物多样性等方面具有优势,在萌芽林下补植阔叶树形成杉阔混交林是一种理想的固碳经营模式。
The long-term effects of different fertilization intensity and regeneration pattern on carbon sequestration in Chinese fir plantations were studied,which is of an great significance for improving the carbon sequestration potential of artificial forests. The FORECAST model was used to simulate the long-term effects of different fertilization intensity and regeneration pattern on carbon sequestration of Chinese fir plantations,and the goal of optimizing the management of Chinese fir plantations were achieved. The studies have shown that under medium site conditions,the effects of different fertilizer intensity treatments on total carbon sequestration in 150 years are: 60 kg/hm2 N > 120 kg/hm2 N > 30 kg/hm2 N > 0 kg/hm2 N. Appropriate fertilization can increase soil organic carbon storage,and if excessive,it will cause soil nitrogen saturation effect. The bio-carbon storage of Chinese fir seedling forest is higher than that of sprouting forest,but the sprouting forest has advantages in soil and water conservation,soil nutrient and biodiversity. It is an ideal carbon sequestration management mode to replant the broad-leaved trees under the sprouting forest to form the Chinese fir and broad-leaved mixed forests.
The long-term effects of different fertilization intensity and regeneration pattern on carbon sequestration in Chinese fir plantations were studied,which is of an great significance for improving the carbon sequestration potential of artificial forests. The FORECAST model was used to simulate the long-term effects of different fertilization intensity and regeneration pattern on carbon sequestration of Chinese fir plantations,and the goal of optimizing the management of Chinese fir plantations were achieved. The studies have shown that under medium site conditions,the effects of different fertilizer intensity treatments on total carbon sequestration in 150 years are: 60 kg/hm2 N > 120 kg/hm2 N > 30 kg/hm2 N > 0 kg/hm2 N. Appropriate fertilization can increase soil organic carbon storage,and if excessive,it will cause soil nitrogen saturation effect. The bio-carbon storage of Chinese fir seedling forest is higher than that of sprouting forest,but the sprouting forest has advantages in soil and water conservation,soil nutrient and biodiversity. It is an ideal carbon sequestration management mode to replant the broad-leaved trees under the sprouting forest to form the Chinese fir and broad-leaved mixed forests.
引文
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[10]陈智,尹华军,卫云燕,等.夜间增温和施氮对川西亚高山针叶林土壤有效氮和微生物特性的短期影响[J].植物生态学报,2010,34(11):1254-1264.
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[13]郑宝定.不同施肥处理对杉木二代生长特征的影响[J].山东林业科技,2012(6):43-45.
[14]花焜福.杉木施肥17年以后持续效应的研究[J].林业勘查设计,2000(1):77-79.
[15]杨桦,詹有生,李勇,等.杉木近熟林施肥试验研究[J].江西农业大学学报,2005,27(2):187-190.
[16]陈秀庭.杉木人工林连续两年施肥效应研究林木施肥研究[D].福州:福建农林大学,2009.
[17]叶镜中.杉木萌芽更新[J].南京林业大学学报(自然科学版),2007,31(2):1-4.
[18]马祥庆,刘爱琴,何智英,等.杉木免耕萌芽更新生态效果研究[J].中南林学院学报,2000,20(1):14-18.
[19]田晓萍.杉木萌芽更新的研究[J].福州:福建农林大学,2008.
[20]黄旺志,郑芳,李党法,等.豫南杉木萌芽林生长规律的研究[J].信阳师范学院学报(自然科学版),2006,19(2):191-194.
[2]金文斌,魏彦波,张春雨,等.基于森林生态系统管理的森林经营与传统森林经营的比较研究[J].浙江林业科技2010,30(1):48-52.
[3]王伟峰,段玉玺,张立欣,等.不同轮伐期对杉木人工林碳固存的影响[J].植物生态学报,2016,40(7):669-678.
[4]王伟峰,段玉玺,张立欣,等.适应全球气候变化的森林固碳计量方法评述[J].南京林业大学学报(自然科学版),2016,40(3):170-176.
[5]唐学君,王伟峰,罗细芳,等.不同林龄序列杉木实生林和萌芽林碳储量分配特征[J].水土保持学报,2017,31(1):127-133.
[6]毛行元,唐学君,王伟峰.基于FORECAST模型模拟造林密度对杉木人工林碳储量的影响[J].江西农业学报,2018,30(1):41-44.
[7]Wang W F,Wei X H,Liao W M,et al.Evaluation of the effects of forest management strategies on carbon sequestration in evergreen broad-leaved plantation forests using FORECAST ecosystem model[J].Forest Ecology and Management,2013(300):21-32.
[8]Bi J,Blanco J,Kimmins J.Yield decline in Chinese fir plantations:a simulation investigation with implications for model complexity[J].Canadian Journal of Forest Research,2007(37):1615-1630.
[9]王伟峰,魏晓华,段玉玺,等.采伐剩余物处理方式对杉木人工林固碳量的长期影响[J].水土保持研究,2016,23(6):198-203.
[10]陈智,尹华军,卫云燕,等.夜间增温和施氮对川西亚高山针叶林土壤有效氮和微生物特性的短期影响[J].植物生态学报,2010,34(11):1254-1264.
[11]史建伟,王孟本,于立忠,等.土壤有效氮及其相关因素对植物细根的影响[J].生态学杂志,2007,26(10):1634-1639.
[12]王敬,李贤伟,荣丽,等.森林土壤氮贮量及氮素输入过程研究进展[J].世界林业研究,2008,21(1):14-19.
[13]郑宝定.不同施肥处理对杉木二代生长特征的影响[J].山东林业科技,2012(6):43-45.
[14]花焜福.杉木施肥17年以后持续效应的研究[J].林业勘查设计,2000(1):77-79.
[15]杨桦,詹有生,李勇,等.杉木近熟林施肥试验研究[J].江西农业大学学报,2005,27(2):187-190.
[16]陈秀庭.杉木人工林连续两年施肥效应研究林木施肥研究[D].福州:福建农林大学,2009.
[17]叶镜中.杉木萌芽更新[J].南京林业大学学报(自然科学版),2007,31(2):1-4.
[18]马祥庆,刘爱琴,何智英,等.杉木免耕萌芽更新生态效果研究[J].中南林学院学报,2000,20(1):14-18.
[19]田晓萍.杉木萌芽更新的研究[J].福州:福建农林大学,2008.
[20]黄旺志,郑芳,李党法,等.豫南杉木萌芽林生长规律的研究[J].信阳师范学院学报(自然科学版),2006,19(2):191-194.