水土保持研究2017，Vol.24Issue(4)：337-341,348,6.
修河上游流域4种森林类型的水源涵养功能评价
Assessments of Four Types of Forests on Soil Water Conservation Functions in the Upper Reaches of Xiu River
摘要
Abstract
To understand the soil water conservation functions of different types of forests in the upper reaches of Xiu River,the eco-hydrological functions of the litterfall and soil were studied in the four main types of forests (i.e.,Cuninghamia lanceolata forests,Pinus massoniana forests,broadleaved forests,Phyllostachys heterocycla forests).The results showed that:(1) the litter contents of the four types of forests ranged from 3.50～5.99 t/hm2,and the largest was observed in C.lanceolata foress,while the lowest was found in Ph.heterocycla forest;the largest water-holding capacities of litterfall decreased in the order:broadleaved forest＞ P.massoniana forest ＞ C.lanceolata forest ＞ Ph.heterocycla foress,which indicated that broadleaved forest had greater effect on soil water conservation than conifer forests;(2) the soil bulk densities in the four types of forest decreased in the sequence of P.massoniana forests＞C.lanceolata forests＞Ph.heterocycla forests＞broadleaved forests,and the result showed that broadleaved forest was more beneficial to improve the soil structure;the water conservation of soil in Ph.heterocycla (376.50 t/hm2) forest was the largest among the four types of forests,followed by broadleaved forest (373.17 t/hm2) and P.massonianaforest (213.50 t/hm2),while C.lanceolata forest (186.42 t/hm2) was lower;(3) the comprehensive soil water conservation of litterfall and soil decreased in the sequence:Ph.Heterocycla forests＞ broadleaved forests＞P.massoniana forests＞C.lanceolata forests.These results suggested that the soil water conservation functions of broadleaved and Ph.heterocycla were superior to conifer forests,so we should do more to protect broadleaved and Ph.heterocycla.关键词
修河上游/水源涵养/枯落物层/土壤层Key words
upper reaches of Xiu river/soil water conservation functions/litterfall layer/soil layer分类
农业科技引用本文复制引用
孙浩,刘晓勇,何齐发,江柳春,徐昕..修河上游流域4种森林类型的水源涵养功能评价[J].水土保持研究,2017,24(4):337-341,348,6.基金项目
江西省林业厅办公室“江西省林业厅办公室关于开展江西省生态公益林监测试点工作的通知”(赣林办发[2015]104号) （赣林办发[2015]104号）
