[1]段媛媛,何俊皓,李涛,等.陕北黄土丘陵区不同植被景观功能评价[J].水土保持研究,2018,25(05):149-156.
 DUAN Yuanyuan,HE Junhao,LI Tao,et al.Research on Landscape Function of Different Vegetation Landscape Types in Loess Hilly Region of Northern Shaanxi[J].,2018,25(05):149-156.
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陕北黄土丘陵区不同植被景观功能评价()
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《水土保持研究》[ISSN:1005-3409/CN:61-1272/P]

卷:
25卷
期数:
2018年05期
页码:
149-156
栏目:
出版日期:
2018-09-06

文章信息/Info

Title:
Research on Landscape Function of Different Vegetation Landscape Types in Loess Hilly Region of Northern Shaanxi
作者:
段媛媛12 何俊皓2 李涛3 卜崇峰45 郝文芳2
1. 湖北省农业科学院 中药材研究所, 湖北 恩施 445000;
2. 西北农林科技大学 生命科学学院, 陕西 杨凌 712100;
3. 米脂县林业局, 陕西 米脂 718199
Author(s):
DUAN Yuanyuan12 HE Junhao2 LI Tao3 BU Chongfeng45 HAO Wenfang2
1. Hubei Academy of Agricultural Science, Institute of Chinese Herbel Medicine, Enshi, Hubei 445000, China;
2. College of Life Science, Northwest A & F University, Yangling, Shaanxi 712100, China;
3. Mizhi Forestry Administration, Mizhi, Shaanxi 718199, China
关键词:
景观功能LFA方法退耕还林黄土丘陵区
Keywords:
landscape functionlandscape function analysis methodGrain for Green Projectloess hilly region
分类号:
S718.5
摘要:
采用LFA方法从景观内部构成和土壤表层状况两个方面对陕北黄土丘陵区典型不同林龄人工刺槐林、人工侧柏林、人工柠条林和撂荒草地进行了景观功能评价,探讨陕北黄土丘陵区不同退耕时期人工植被景观对区域土壤性能改善情况及水土保持作用。分别在4种植被景观类型内布设3条不短于50 m样线,在样线上调查斑块和非斑块种类及数量,并在斑块和非斑块内设置1 m2调查区进行了土壤表层评价。结果表明:(1)各景观类型中,斑块百分比及斑块面积大小顺序为人工柠条林 > 撂荒草地 > 人工侧柏林 > 人工刺槐林。(2)随着退耕年限的增加,人工刺槐林及侧柏林景观特征指标及斑块面积指标显著降低(p<0.05),人工柠条林及撂荒草地景观特征指标及斑块面积指标有增加趋势但是不具显著性。(3)人工刺槐林和人工柠条林土壤健康指标最高,对土壤性能具有较强改善作用,人工侧柏林对土壤性能改善作用处于中等水平,撂荒草地土壤健康指标最低。(4)随着退耕年限的增加,人工刺槐林、人工柠条林对土壤性能具有显著改善作用,人工侧柏林和撂荒草地对土壤性能的改善作用不明显。综上,人工刺槐林、人工柠条林对改善生态环境,减少水土流失具有显著作用,人工侧柏林的土壤改善和水土保持作用不明显,撂荒草地能够对土壤性能起到改善作用,但处于较低水平。
Abstract:
Landscape function analysis method (LFA method) was used to assess landscape internal distribution and soil surface conditions in locust, arborvitae, Caragana, wasteland landscapes with different restoration years in loess hilly region north of Shaanxi Province to discuss the soil condition improvement and water conservation abilities of 4 landscape types in different restoration years. To reach the research goal, 3 sample lines longer than 50 meters were set in every plot in each of 4 landscape types. Then the type and number of patches and interpatch were investigated on each sample line and soil surface investigation was done in 1 meter square query zone within every type of patch and interpatch. The results showed that:(1) within four landscape types, the order of patch proportion and patch area was Caragana > wasteland > arborvitae > locust; (2) with the increasing of restoration year, the landscape organization index and patch area index in locust and arborvitae community showed significant decreasing pattern, while Caragana and wasteland community showed increasing pattern; (3) locust and Caragana communities had the highest value in soil health index, showing the highest ability of soil condition improvement, while arborvitae communities showed normal ability of soil improvement, and wasteland had the lowest soil health value; (4) with the increasing of restoration year, locust and Caragana community had significant improvement on soil property, while arborvitae community and wasteland could improve soil property but did not show significance; locust and Caragana communities had significant effect on improving ecological environment and decreasing soil and water losses; landscape function of arborvitae communities could be improved by planting other arbor and shrub species in communities. Landscape function of wastelands can be improved by human disturbance to increase its succession.

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备注/Memo

备注/Memo:
收稿日期:2017-09-30;改回日期:2017-11-28。
基金项目:全国中药资源普查项目(财社〔2017〕66号);国家重点研发计划项目(2017YFC0504703-01):边坡工程安全防控与生态还绿技术;国家现代农业产业技术体系建设专项(CARS-21);湖北省重大专项(2017ACA175);湖北省农业科学院青年科学基金项目(2018NKYJJ16);湖北省技术创新专项(民族专项)(2018AKB037)
作者简介:段媛媛(1991-),女,山西芮城人,硕士,研究实习员,主要从事植被生态学研究。E-mail:duanyuanyuan2016@163.com
通讯作者:郝文芳(1968-),女,陕西西乡人,教授,博士,主要从事植被生态学和药用植物资源学方面的研究工作。E-mail:haowenfang@nwsuaf.edu.cn
更新日期/Last Update: 1900-01-01