三峽庫區(qū)城鄉(xiāng)消落帶人工植被恢復土壤放線菌多樣性特征
[Abstract]:In order to study the diversity of soil actinomycetes community in the declination zone after the restoration of artificial vegetation, the typical urban decaying zone of the three Gorges Reservoir area, Chongqing Jiangbeizi Grand Theater, and the Zhongnian Ruxi River Basin, were used as the study areas. The diversity of actinomycetes community in different soil layers of different soil layers was studied by using restriction end length polymorphism (terminal restriction fragment length polymorphism,T-RFLP) method in 20 cm,20~40 cm,40~60 cm soil samples collected in June 2015. The results showed that: (1) the diversity of soil actinomycetes in the urban and rural areas of the three Gorges Reservoir area was higher than that in the rural areas (P0.05), and the diversity of soil actinomycetes in the urban declination zone was higher than that in the rural areas (P0.05). Especially in the surface soil. (2) the diversity of actinomycetes in woodland is higher than that in grassland in urban and rural areas. There was no significant difference in actinomycetes diversity among soil layers. (3) the dominant species of soil actinomycetes were different after the restoration of artificial vegetation in urban and rural areas of the three Gorges Reservoir area. (4) redundant analysis of (redundancy analysis,. RDA) and Monte Carlo replacement test (Monte-Carlo permutation test) showed that the water content and available nitrogen content in the urban decaying zone significantly affected the diversity of actinomycetes community. The soil moisture content, organic matter, available nitrogen and available potassium contents significantly affected the diversity of actinomycetes community. The results showed that the diversity of soil actinomycetes in the urban belt was higher than that in the rural zone after the restoration of artificial vegetation, which might be caused by human disturbance and the increase of soil nutrients.
【作者單位】: 西南大學生命科學學院三峽庫區(qū)生態(tài)環(huán)境教育部重點實驗室;
【基金】:重慶市林業(yè)重點科技攻關項目(渝林科研2016-8,渝林科研2015-6) 國家國際科技合作專項(2015DFA90900) 中央財政林業(yè)科技推廣示范項目(渝林科推[2014-10]) 重慶市研究生科研創(chuàng)新項目(CYS2015068)
【分類號】:S154.3;X171.4
【相似文獻】
相關期刊論文 前10條
1 揭勝麟;樊大勇;謝宗強;張想英;熊高明;;三峽水庫消落帶植物葉片光合與營養(yǎng)性狀特征[J];生態(tài)學報;2012年06期
2 馮義龍;先旭東;;三峽庫區(qū)冬季蓄水后石門消落帶示范區(qū)植物生長情況初報[J];園林科技;2012年03期
3 田相娟;;山東省臨沂市沂河消落帶植被調(diào)查分析報告[J];山東林業(yè)科技;2013年02期
4 艾麗皎;吳志能;張銀龍;;水體消落帶國內(nèi)外研究綜述[J];生態(tài)科學;2013年02期
5 余敏芬;方佳;何勇清;林太本;鄭炳松;王強;;水蝕對千島湖消落帶土壤氮素影響的數(shù)值模型分析[J];浙江農(nóng)林大學學報;2013年06期
6 廖世純;韋橋現(xiàn);蔡健和;蒙炎成;高國慶;李揚瑞;張永祥;;廣西水庫消落帶植物群落調(diào)查[J];中國水土保持;2008年08期
7 王建超;朱波;汪濤;;三峽庫區(qū)典型消落帶淹水后草本植被的自然恢復特征[J];長江流域資源與環(huán)境;2011年05期
8 孔瓊菊;馬秀峰;江香梅;肖復明;;江西省大中型水庫消落帶問題分析與思考[J];江西水利科技;2012年03期
9 陳海生;黃志強;馮偉榮;;水庫消落帶植物楓楊降污效應研究[J];安徽農(nóng)學通報;2013年16期
10 吳江濤;許文年;陳芳清;戴方喜;鄭江英;;庫區(qū)消落帶植被生境構筑技術初探[J];中國水土保持;2007年01期
相關會議論文 前1條
1 程龍飛;易忠玖;;綠維護岸結構在三峽庫岸消落帶的應用研究[A];自主創(chuàng)新與持續(xù)增長第十一屆中國科協(xié)年會論文集(1)[C];2009年
相關重要報紙文章 前2條
1 記者 張孺!±钚慢 通訊員 周兵 張世梅;彌合消落帶的創(chuàng)傷[N];湖北日報;2010年
2 記者 李先宏、通訊員 湯波;長江大學篩選出水旱共耐性草本植物[N];湖北日報;2006年
相關博士學位論文 前3條
1 康義;三峽庫區(qū)消落帶土壤理化性質(zhì)和植被動態(tài)變化研究[D];中國林業(yè)科學研究院;2010年
2 夏智勇;重慶三峽水庫消落帶植物分布特征與群落物種多樣性研究[D];西南大學;2011年
3 艾麗皎;南川柳對三峽消落帶干濕交替環(huán)境的生理生態(tài)響應研究[D];南京林業(yè)大學;2013年
相關碩士學位論文 前7條
1 劉s,
本文編號:2351212
本文鏈接:http://sikaile.net/kejilunwen/nykj/2351212.html