海南大学学报（自然科学版）2025，Vol.43Issue(4)：398-404,7.DOI:10.15886/j.cnki.hndk.2025011101
土地利用影响热带雨林鹦哥岭溪流生物的空间尺度效应
Spatial scale effects of land use on the organisms in the streams of Yinggeling Tropical Rainforest
摘要
Abstract
To clarify the spatial scale effects of land use on the organisms in tropical rainforest streams,we selected the Yinggeling in Hainan Tropical Rainforest National Park as research area and used Random Forest model to analyze the spatial scale effects of land use on the biodiversity of stream organisms.The results indicated that the explanatory power of land use at different spatial scales for the diversity indices of the benthic macroinvertebrate communities ranged from 45.6％to 52.8％.Among them,the land use at the watershed scale had an important impact on the Shannon diversity index,and the land use within 3.0 km of the watershed upstream was an important land use factor which can explain significant variations of species richness,Simpson diversity index,and evenness index.The explanatory power of land use at different spatial scales for the diversity indices of the fish communities ranged from 30.7％to 42.0％,and the natural forests and the shrub forests within 1.0 km of the watershed upstream were the important land use factors which can explain significant variations of Shannon diversity index,Simpson diversity index,and evenness index of fish.In conclusion,there were significant spatial scale effects of land use in the Yinggeling on the benthic macro invertebrate communities and the fish communities,and which are most sensitive to the land use within 1.0 km and 3.0 km of the watershed upstream.Our findings provide the data support and the theoretical basis for the land use planning and protection of the stream biodiversity in the Yinggeling of Hainan Tropical Rainforest National Park.关键词
大型底栖无脊椎动物/鱼类/空间尺度/水生生物多样性/保护/海南Key words
benthic macroinvertebrate/fish/spatial scale/aquatic biodiversity/conservation/Hainan分类
生物科学引用本文复制引用
周俊龙,蔡杏伟,顾恺曦,谷圆,赵光军,李高俊,谢松光,陈凯,王凤阳..土地利用影响热带雨林鹦哥岭溪流生物的空间尺度效应[J].海南大学学报（自然科学版）,2025,43(4):398-404,7.基金项目
国家自然科学基金青年基金项目(32303007) （32303007）
海南省重点研发计划项目(ZDYF2024SHFZ069) （ZDYF2024SHFZ069）
海南大学高层次人才启动基金项目(RZ2200001344) （RZ2200001344）
