文章摘要
廖凯涛, 胡建民, 宋月君, 冯明军, 郑海金.南方红壤丘陵区流域植被景观格局变化及水沙响应关系[J].水土保持学报,2019,33(3):36~42,50
南方红壤丘陵区流域植被景观格局变化及水沙响应关系
Effects of Vegetation Landscape Patterns on Runoff and Sediment in Red Soil Hilly Region of Southern China
投稿时间:2018-11-15  
DOI:10.13870/j.cnki.stbcxb.2019.03.006
中文关键词: 水文学  南方红壤丘陵区  径流  泥沙  景观格局
英文关键词: hydrology  red soil hilly region of South China  runoff  sediment  landscape pattern
基金项目:国家自然科学基金项目(41461058);江西省科技计划重大项目(2015ZBBF60010,20161BBH80072)
作者单位E-mail
廖凯涛1,2, 胡建民3, 宋月君1,2, 冯明军4, 郑海金1,2 1. 江西省土壤侵蚀与防治重点实验室, 南昌 330029

2. 江西省水土保持科学研究院
, 南昌 330029

3. 江西省水利科学研究院
, 南昌 330029

4. 河海大学水文水资源学院
, 南京 210098 
cm201211@sina.com 
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中文摘要:
      以南方红壤丘陵区典型流域濂江河流域为研究对象,依托GIS和Fragstats平台与长时间系列水沙数据,运用景观格局指数分析和统计学方法,分析流域景观格局和水沙变化特征及其相关性。结果表明:流域内径流呈减少趋势,泥沙呈增加趋势。流域内以有林地为主,面积增加最显著的是经果林。景观水平上,斑块面积均方差(PSCV)、香浓多样性指数(SHDI)与径流呈现正相关,蔓延度指数(CONTAG)与径流呈现负相关)斑块数(NP)、斑块密度(PD)、景观边缘密度(ED)、面积加权的平均形状指数(AWMSI)、香浓多样性指数与径流呈现负相关。类型水平上,耕地的斑块面积(CA)、ED与径流呈负相关,与泥沙呈现正相关)有林地的形状指数(PSCV、AWMSI)与径流呈正相关,CA与泥沙呈现正相关,NPPD与泥沙呈现负相关)灌木林的CAED与径流呈负相关)经果林的所有的指数与径流均呈现正相关,与泥沙呈现负相关性)同时,草地的NPPD与径流呈现负相关。
英文摘要:
      Although vegetation coverage has been restored and the ecological environment has been greatly improved through efforts of decades, the soil erosion is still serious in the red soil hilly region of Southern China. Taking the typical Lian River watershed as the study area, the effects of vegetable landscape patterns on runoff and sediment were analyzed using the long-term historical land use, runoff (1958-2017), and sediment data (1964-2017). The results showed that:The runoff in the basin was decreasing, but the sediment was increasing. Forestland was the dominant landscape, and fruit land had the largest growth rate. At landscape level, patch size coefficient of variation(PSCV),and Shannon's diversity index(SHDI) were positively associated with runoff,while contagion index(CONTAG) was negatively associated with runoff. Number of patches(NP),Patch density (PD),Edge density (ED), Area-weighted mean shape index(AWMSI),and Shannon's diversity index(SHDI)were negatively associated with sediment. At class level,the class area (CA) and edge density (ED) of farmland were negatively associated with runoff,however positively associated with sediment. The PSCV and AWMSI of forestland were positively associated with runoff,CA was negatively associated with runoff, and NP and PD were positively associated with sediment. The CA and ED of shrub forest were negatively associated with runoff. All the landscape pattern indexes of fruit land were positively associated with runoff and negatively associated with sediment. The NP and PD of grassland were negatively associated with runoff.
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