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不同人为干扰措施对天然次生灌丛土壤肥力及蓄水能力的影响 预览 被引量:3

Effects of different human disturbances on soil water conversation and fertility of natural secondary shrub
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摘要 亚热带常绿阔叶林遭反复干扰后退化形成的天然次生灌丛在未管护模式下难以恢复为乔木林。在浙江省临安市选择典型天然次生灌丛,以强度人为干扰为对照、分别进行保护性干扰和适度人为干扰,探讨灌丛土壤蓄水能力和肥力质量的响应。4年试验结果表明:与强度人为干扰相比,保护性干扰和适度人为干扰后的土壤总贮水量、吸持贮水量和滞留贮水量分别提高了12.41%、5.33%、17.37%和29.13%、33.23%和26.24%;最大持水量、毛管持水量和最小持水量分别提高了23.35%、9.51%、17.55%和48.63%、56.08和71.05%;与强度人为干扰相比,保护性干扰和适度人为干扰的综合肥力分别提高了1.9%和38.5%,其中保护性干扰的水解氮、有机碳和有机质含量提高了12.11%、38.91%和38.94%,适度人为干扰的水解氮、有效磷、有机碳和有机质含量提高了61.97%、90.57%、130%和130.04%,保护性干扰和适度人为干扰的土壤综合评价指数分别提高了15.43%和58.94%。研究表明,与保护性干扰相比,适度人为干扰在土壤的蓄水保水、肥力和固碳增汇等方面更能达到预期的目标。在有条件经营的情况下,可以选择适度人为干扰措施对天然次生灌丛进行管理从而达到加快土壤恢复的目的。 It is difficult for the natural secondary shrub originated from subtropical evergreen broad-leaved forest by repetitive disturbance to recover to the arbor forest without protective measures. To explore the response of soil water storage capacity and fertility quality of shrub to different disturbance, moderate human disturbance and protective human disturbance(PHD) were taken in typical natural secondary shrub with high human disturbance as control during the period 2012-2015 in Lin'an, Zhejiang Province, China. No protective measures were taken in high human disturbance stands, but artificial interference activities such as wood chopping and herb gathering occurred occasionally. As for the protective interference, no one was permitted entry. Target trees in the natural secondary thickets were selected and tended in moderate human disturbance stands. The integrated soil fertility was determined by Nemero index, and correlation methods were used to estimate the comprehensive evaluation index of soil. Compared with the control, the soil total storage, retention storage and short term storage in protective disturbance and moderate disturbance plots increased by 12.41%, 5.33%,17.37% and by 29.13%,33.23%, 26.24%, respectively. Compared with control, soil maximum water-holding capacity, capillary water holding capacity, and minimum water-holding capacity in protective disturbance and moderate disturbance plots increased by 23.35%, 9.51%, and 17.55% by 48.63%, 56.08%, 71.05%, respectively. Comprehensive soil fertility of protective disturbance and moderate disturbance plots increased by 15.43% and 58.94% respectively when compared with control. Available nitrogen, organic carbon and soil organic matter of protective disturbance plots increased by 12.11%, 38.91% and 38.94%. Moreover, available nitrogen, available phosphorus, organic carbon and soil organic matter of moderate disturbance plots increased by 61.97%, 90.57%, 130% and 130.04%. The integrated soil quality index of protective disturbance and moderate dis
作者 尤誉杰 王懿祥 张华锋 邱烷婷 吴敏娟 YOU Yujie1 , WANG Yixiang1 , ZHANG Huafeng2, QIU Wanting1, WU Minjuan1 (1 State Key Laboratory of Subtropical Silviculture, Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration School of Environment and resource, Zhejiang Agriculture and Forestry University, Lin'an 311300, China 2 Lin'an Forestry Bureau., Lin'an 311300, China)
出处 《生态学报》 CSCD 北大核心 2018年第3期1097-1105,共9页 Acta Ecologica Sinica
基金 国家“十二五”科技支撑计划项目(2012BAD22B0503)
关键词 天然次生灌丛 人为干扰 土壤蓄水 土壤肥力 土壤有机碳 封禁 natural secondary shrub human disturbance soil water storage soil fertility soil organic carbon closed forest management
作者简介 通讯作者.E-mail:w_yixiang@126.com
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