CAJ | 학술논문

杭州西溪湿地是在一千多年农渔耕作用下形成的城市边缘次生湿地．该项研究对西溪湿地自然生长的灌草植被进行了23个9m。的共优种样方和若干个单优种群落的调查，并尝试对它们进行DCA排序和TWINSPAN的聚类分类研究．结果显示，土壤水分和光照条件是影响西溪灌草植被群落及物种分布的主要因子．西溪的灌草植被大体上可以分为6大类，27个群丛：阳性-水生植物群落——9个群丛，阳性、近岸的湿生植物群落——8个群丛，介于湿生和中生之间的植物群落——3个群丛，以上三类是典型的湿地植被类型：阳性．中生植物群落——3个群丛，介于喜阳和耐阴之间的中生植物群落——2个群丛，耐阴的中生植物群落——2个群丛，后三类不是典型的湿地植被类型．TWINSPAN将99个物种分成两类：偏中生的和偏湿生的物种．DCA的排序与TWINSPAN聚类结果基本一致．最后指出，在保护现有生境和物种多样性的基础上，扩大和修复湿地生境，培植多样的湿地植物是杭州西溪湿地今后管理的重要任务．
항주서계습지시재일천다년농어경작용하형성적성시변연차생습지．해항연구대서계습지자연생장적관초식피진행료23개9m。적공우충양방화약간개단우충군락적조사，병상시대타문진행DCA배서화TWINSPAN적취류분류연구．결과현시，토양수분화광조조건시영향서계관초식피군락급물충분포적주요인자．서계적관초식피대체상가이분위6대류，27개군총：양성-수생식물군락——9개군총，양성、근안적습생식물군락——8개군총，개우습생화중생지간적식물군락——3개군총，이상삼류시전형적습지식피류형：양성．중생식물군락——3개군총，개우희양화내음지간적중생식물군락——2개군총，내음적중생식물군락——2개군총，후삼류불시전형적습지식피류형．TWINSPAN장99개물충분성량류：편중생적화편습생적물충．DCA적배서여TWINSPAN취류결과기본일치．최후지출，재보호현유생경화물충다양성적기출상，확대화수복습지생경，배식다양적습지식물시항주서계습지금후관리적중요임무．
Xixi Wetland is located on the outskirts of Hangzhou, eastern China. It is a secondary farming wetland. The aim of this paper is to analyze the classification and distribution of the existing shrub-grass communities on Xixi Wetland by using TWINSPAN and DCA methods. Plant community surveys were conducted using random sampling technique. The important values （IV） of species were used. The results showed that the shrub-grass vegetation of Xixi can be classified as 27 associations according to their habitats, which are： heliophyte-hydrophyte communities （9 associations）; heliophyte-hygrophyte communities （8 associations） ; transitional communities between hygrophyte and mesophyte （3 associations） ; transitional communities between heliophyte and shade-tolerance （2 associations） ; shade-tolerance and mesophyte communities（2 associations）. Species in the vegetation were classified into two groups by TWINSPAN ： one group is hygrophyte, which are in favor of lowland; the other group is mesophyte, which appear more common on highland. TWINSPAN and DCA ordination both showed that soil moisture and light intensity are the most im- portant natural factors which determined the distribution of species and communities on Xixi. It is found that the coverage of typical wetland vegetation are less than that of the mesophytic ones, so it is suggested that much more wetland habitats and wetland plants should be restored or planted ; meanwhile, some degree of human management should be kept for the maintaining of multiple habitats, biodiversities and enhancing the ecological services of Xixi Wetland.