文献类型：期刊文献

中文题名：林业生态工程措施对滨海盐碱地草本植物的影响

英文题名：Effects of forestry ecological engineering on herb community in coastal saline-alkali land

作者：单奇华[1] 张建锋[1] 沈立铭[2] 唐华军[2] 阮伟建[3] 陈光才[1]

第一作者：单奇华

机构：[1]中国林业科学研究院亚热带林业研究所;[2]余姚市林业特产技术推广总站;[3]余姚市泗门镇农业农村办

年份：2012

卷号：31

期号：6

起止页码：1411-1418

中文期刊名：生态学杂志

外文期刊名：Chinese Journal of Ecology

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

基金：林业公益性行业科研专项(201104055);浙江省林业科研项目(08A02);科技支撑计划项目(2009BADB2B0304-2;2012BAJ24B0504)资助

语种：中文

中文关键词：草本植物;群落结构;物种多样性;林业生态工程;杭州湾;盐碱地

外文关键词：community structure ; species diversity; forestry ecological engineering; HangzhouBay ; saline-alkali land.

分类号：S718.5

摘要：林业生态工程是当前国内滨海盐碱地生态改良的重要措施,这一措施对滨海盐碱地的自然生态系统产生了一定的影响。为揭示林业生态工程措施对滨海盐碱地草本植物的影响,在杭州湾余姚段滨海盐碱地上,应用生态工程措施营造一条长约3.5km、宽约30m的人工林带,分别以林带两侧农田和荒地为对照,运用目测法和样方法,以盐生和耐盐草本植物的种类、物种-面积关系、频度、单位面积生物量、综合优势度比、丰富度、Pielou均匀度指数、Shannon指数和Simpson指数为指标,研究了滨海盐碱地不同处理的草本植物在群落结构和物种多样性上的差异。结果表明:研究区草本植物共有14科30属31种,不同处理的草本植物均以禾本科和菊科为主;与荒地和农田草本群落相比,林业生态工程改良带草本群落的物种数目没有显著变化,但种类组成有了显著的改变,最小面积显著扩大,群落结构复杂化,物种多样性有提高趋势;林业生态工程改良区生境过滤作用发挥着主要作用,而物种间的竞争排斥作用还不明显。林业生态工程措施有效地改变了滨海盐碱地原生草本植物的群落结构和物种多样性,促使研究区草本植物进入一个新的演替进程,显示出较高的生态效益。
Forestry ecological engineering, an important measure for the ecological amelioration of our coastal saline-alkaline land, has definite effects on the local natural ecosystem. This paper studied the effects of forestry ecological engineering on the herb community in a saline-alkali land at the Yuyao section of Hangzhou Bay. On the land, a shelterbelt of 3.5 km in length and 30 m in width and between two originally existed lands, namely, farmland and wasteland, was con- structed with comprehensive ecological engineering measures. The herb community structure and diversity in the farmland, forestland, and wasteland were investigated by visual and sampling plot methods, with the species, species-area relationship, frequency, biomass, summed dominance ratio （SDR）, richness, Pielou evenness index, Shannon index, and Simpson index as the indi- cators. In the whole study area, a total of 31 herbaceous plant species belonging to 30 genera and 14 families were recorded. Poaceae and Asteraceae dominated everywhere. Compared to the farmland and wasteland, the herb community in the shelterbelt exhibited obviously different eco- logical traits, including varied species, enlarged minimum area, more complex structure, and in- creasing species diversity. The habitat filter functioned efficiently in the ameliorated zone, while the competitive exclusion did not temporarily. It was concluded that forestry ecological engineering disturbed the primary structure and diversity of the plant species in the coastal saline-alkali land, leading to a new plant succession in the restoration zone, and implying a great ecological efficiency.