摘要
选择贵州花江喀斯特峡谷为研究区,于2009年5月和9月对不同等级石漠化地的土壤动物多样性和花椒凋落物的分解速率进行研究。共获土壤动物3423只,隶属于3门7纲19目,共21个类群,优势类群为弹尾目(Collembola)、甲螨亚目(Oribatida)、中气门亚目(Mesostigmata);常见类群为前气门亚目(Prostigmata)、鞘翅目(Coleoptera)、双翅目(Diptera)、膜翅目(Hymenoptera)、半翅目(Hemiptera)。研究结果表明:(1)减少人为活动、有效保存地面凋落物、提高生境生物多样性可以迅速改良土壤生态环境,有效恢复土壤动物群落;(2)凋落物分解受土壤动物数量的影响最大,尤其是弹尾目和蜱螨目的数量起决定作用;(3)石漠化治理工程对花江石漠化治理和喀斯特生态环境的重建具有重要意义。
By the field investigation and litter bag technique, the characteristics of soil fauna diversity and decomposition function in Zanthoxylurn planispinurn forestland, in the Huajiang gorge area was studied in May and September, 2009. A total of 3423 individuals of soil animal,belonging to 3 phyla, 7 classes and 19 orders were collected and sorted into meso and micro fauna. The dominant orders were Collembola, Oribatida, Mesostigmata, the frequent orders were Prostigmata, Coleoptera, Diptera, Hymenoptera, Hemiptera, the remnant orders were rare orders. Research results showed that： （1） improved soil eeo-environ- ment and highly restored animal community can be achieved through reducing human disturbance, keeping ground litter effi- ciently and improving biodiversity condition; （2） the amount of soil animal pays the most important role in the decomposition of ground litter; especially for the species belonging to Collembola and Acarina, which pay a dominant role; （3） the rocky desertification project has an important sense to rocky desertification and eco-environment restoration in the Hajiang demonstration area.
出处
《地球与环境》
CAS
CSCD
北大核心
2010年第3期314-319,共6页
Earth and Environment
基金
国家“十一五”科技支撑计划重大课题(2006BAC01A09)
贵州省社会发展科技攻关计划项目(黔科合SZ字[2009]3013)
贵州师范大学研究生专项创新基金(研[2009]14)
贵州师范大学学生科研课题联合资助
关键词
土壤动物
生物多样性
花椒
凋落物分解
喀斯特石漠化
贵州花江
soil fauna
biodiversity
Zanthoxylum planispinurn var. dintanensis
litter decomposition
karst rocky desertification
Huajiang of Guizhou
