%0 Journal Article
%T Effects of forestland-farmland boundary network on soil moisture content of forestland and farmland in upper Minjiang River reaches<br>岷江上游林农边界网络的生态效应
%A WEN Qing-chun
%A LI Xiu-zhen
%A HE Hong-shi
%A LI Li-guang
%A HE Xing-yuan
%A YANG Zhao-ping
%A <br>问青春
%A 李秀珍
%A 贺红士
%A 李丽光
%A 何兴元
%A 杨兆平
%J 生态学杂志
%D 2007
%I 
%X By using Landsat TM satellite images and combined with field investigation,the information of farmland boundaries in upper Minjiang River reaches was derived,and the edge effect of forestland-farmland boundary at landscape scale was investigated.The results showed that there were 5 types of farmland boundaries,i.e.,forestland-farmland boundary,shrub land-farmland boundary,grassland-farmland boundary,water body-farmland boundary and construction land-farmland boundary,among which,forestland-farmland boundary was 2473.68 km long,accounting for 37.57% of the farmland boundaries and distributed in the valleys of upper Minjiang River reaches,having greater effects on the soil moisture and biodiversity of farmland but less effects on those of forestland.The soil moisture content was lower on the forestland-farmland boundary than on their interiors due to the edge effect.In the upper Minjiang River reaches,there were 2 103 hm2,or 2.33% of the total farmland,and 371 hm2,or 0.03% of the total forestland,whose soil moisture content was affected by the forest-farmland boundary.Since soil moisture content was a limiting factor of the plant growth in the upper Minjiang River reaches and the forestland-farmland landscape in the area was fairly fragmented,the further increase of the forestland-farmland boundary should not be encouraged.
%K edge effect
%K forestland-farmland boundary network
%K landscape scale
%K soil moisture
%K biodiversity<br>边界效应
%K 林农边界网络
%K 景观尺度
%K 土壤水分
%K 生物多样性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=B04840A985D251F36078BD07A90EF003&aid=D0532DAA35337ECA&yid=A732AF04DDA03BB3&vid=96C778EE049EE47D&iid=9CF7A0430CBB2DFD&sid=782B98DFA363AFCB&eid=828C17AB7A0B20B4&journal_id=1000-4890&journal_name=生态学杂志&referenced_num=0&reference_num=17