%0 Journal Article
%T Distribution characteristics of soil organic carbon, nitrogen and phosphorus in densely populated village landscapes of different hilly regions of China<br>中国典型丘陵区人口密集乡村景观的土壤碳氮磷分布特征
%A E C Ellis
%A JIAO Jia-guo
%A YANG Lin-zhang
%A WU Jun-xi
%A LI Hui-xin
%A E C Ellis
%A <br>焦加国
%A 杨林章
%A 武俊喜
%A 李辉信
%J 应用生态学报
%D 2007
%I 
%X Based on high spatial resolution remote sensing map (1 m) and sampling with a stratified design on different site types, the effects of fine-scale land use patterns in villages on top soil (0-30 cm) organic carbon (OC), total nitrogen (TN) and total phosphorus (TP) within and across the densely populated hilly landscapes, i. e., Sichuan Hilly Region (SIHR; Jintang County, Sichuan Province), Subtropical Hilly Region (SUHR; Yiyang County, Hunan Province), and Tropical Hilly Region (THR; Dianbai County, Guangdong Province), were investigated. The results showed that soil OC density was decreased in the order of SUHR (2.72 +/- 0.76 kg x m(-2)) > THR (2.65 +/- 0.73 kg x m(-2)) > SIHR (2.15 +/- 0.57 kg x m(-2)), TN density was in the order of SUHR (0.28 +/- 0.06 kg x m(-2)) > SIHR (0.27 +/- 0.06 kg x m(-2) > THR (0.21 +/- 0.06 kg x m(-2)), and TP density was in the order of SIHR (0.19 +/- 0.04 kg x m(-2)) > SUHR (0.11 +/- 0.03 kg x m(-2)) > THR (0.08 +/- 0.04 kg x m(-2)). The fine-scale landscape units (ecotopes) with the highest soil OC, TN and/or TP stocks were rainfed annual crops in SIHR, paddy rice in SUHR, and open canopy trees and brush in THR, respectively. In all hilly regions, paddy and forest land use classes had the highest soil OC and TN density, while mined areas had the lowest soil OC and TN density, with the distribution of TP density showing a more complicated pattern than that of OC and TN. Ecotope level analysis could reflect the soil organic carbon, nitrogen and phosphorus distribution in densely populated village landscape of hilly regions more comprehensively than land use or land cover analysis.
%K hilly region
%K densely-populated village landscape
%K ecotope
%K land use
%K soil nutrient<br>丘陵区域
%K 人口密集乡村景观
%K 生态立地
%K 土地利用
%K 土壤养分
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=68E9DE57A4F85564&yid=A732AF04DDA03BB3&vid=13553B2D12F347E8&iid=DF92D298D3FF1E6E&sid=4BA709A0F998E415&eid=9F9D3173F7EC760A&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=0&reference_num=22