%0 Journal Article
%T An on-the-spot sampling and survey method for soil nutrient cycling study<br>土壤养分循环实地采样调查方法
%A HUANG Min
%A SU Yirong
%A HUANG Daoyou
%A WU Jinshui
%A HUANG Qiaoyun
%A <br>黄敏
%A 苏以荣
%A 黄道友
%A 吴金水
%A 黄巧云
%J 应用生态学报
%D 2006
%I 
%X In this paper, an on-the-spot sampling and survey method for studying the soil nutrient cycling in a regional scale was discussed, with considering the principles of representation, reproducibility, randomness and timeliness. Firstly, some representative sampling areas in a definite region should be selected, based on the relevant hypsographic maps and airscapes. During the course of sampling soil and plant, a field survey related to the sampling sites should be carried out to understand the natural affecting factors on the soil nutrient cycling in a regional agro-ecosystem scale. Moreover, the farmers' basic status, crop production, and applied amount of fertilizers and their allotment should be also investigated. A case study of nutrient cycling in subtropical regions of China was carried out to approach the application of the method in the study of soil nutrient cycling in some regions.
%K Sampling area
%K Sampling and survey
%K Soil nutrient cycling
%K Method
%K Regional ecosystem<br>样区采
%K 样调查
%K 土壤养分循环
%K 方法
%K 区域生态系统
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=F246EFFF224432B5&yid=37904DC365DD7266&vid=BCA2697F357F2001&iid=0B39A22176CE99FB&sid=EF27C460877D3C9F&eid=79D2EF35F60110C2&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=0&reference_num=25