Study on Water Conservation Function of Poplar Plantation with Different Densities
LIU Xiaona
JIA Guodong
YU Xinxiao
Abstract：A study of water conservation function were carried out in five densities (600 plants/hm2,925 plants/hm2,1 200 plants/hm2,1 375 plants/hm2,1 525 plants/hm2) poplar plantation in north mountain of Hebei Province.The results showed that the soil bulk density changed with density stand as 925 plants/bm2＞600 plants/hm2＞1 200 plants/hm2＞1 525 plants/hm2＞1 375 plants/hm2;at the same density,the soil bulk density of each density stand showed a gradually increasing trend withthe deepening of soil layer thickness.The total porosity of poplar plantation in different density was 34.51％～50.52％,with theorder as 1 375 plants/hm2＞1 525 plants/hm2＞1 200 plants/hm2＞600 plants/hm2＞925 plants/hm2.The maximum water holding capacity of poplar plantation in different density was 457.53～667.33 t/hm2,with the order as 1 375 plants/hm2＞1 525 plants/hm2＞1 200 plants/hm2＞600 plants/bm2＞925 plants/bm2.The litter thickness,volume,water holding capacity,and interception amount showed a increasing trend with the increase of stand density,with the order as 1 525 plants/hm2＞1 375 plants/hm2＞1 200 plants/bm2＞925 plants/hm2＞600 plants/hm2.But the order of the maximum water holding rate was 1 375 plants/hm2＞1 200 plants/hn2＞1 525 plants/hm2＞925 plants/bm2＞600 plants/hm2.From the two aspects of integrated soil and litter,the order of water holding capacity was 1 375 plants/hm2＞1 525 plantdhm2＞1 200 plants/hm2＞600 plants/hm2＞925 plants/hm2,the water conservation function of 1 375 plants/hm2 is good,which can provide reliable data support for the planting density of poplar plantation in Fengning County,Chengde City in the future.
Keywords：poplar plantationwater conservation functionsoillitter
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 8-13 )