CORRELATION BETWEEN SOIL SAL TIL ISATION AND COMMUNITY DIVERSITY : THE CASE OF FUKANG OASIS

Μέγεθος: px

Εμφάνιση ξεκινά από τη σελίδα:

Download "CORRELATION BETWEEN SOIL SAL TIL ISATION AND COMMUNITY DIVERSITY : THE CASE OF FUKANG OASIS"

Νέφθυς Κασιδιάρης
5 χρόνια πριν
Προβολές:

1 RESOURCES SCIENCE Vol. 24 No. 3 May ( ; ) : ph 9 9 : : ; ; ; :S564 + ;Q9443 (245) :A : (2002) CORRELATION BETWEEN SOIL SAL TIL ISATION AND COMMUNITY DIVERSITY : THE CASE OF FUKANG OASIS GU Feng2xue ZHANG Yuan2dong PAN Xiao2ling CHU Yu ZHANGLin2jing 2 (. Department of Resources and Environment Science Xinjinag Universtiy Urumqi China ; 2. Biodiversity Research Center for Qinling Mountain Northwest Universtiy Xi an China) Abstract :By employing indicators as soil PH conductance and salt content different soil salinity degrees are plotted out. There are 9 types of salinisation levels in Fukang oasis. Within them the strong saline soil and solonchak are the main types which with regards to latitude and from the lower of diluvial fan to desert distribute in turn as middle saline soil strong saline soil solonchak strong saline soil solonchak and non2 saline distribute. Concerning indicators as the type of dominant species shrub coverage abundance and di2 versity induces as well as the principles and systems of China s vegetation class this article classified the Fukang vegetation into 9 types. These communities in latitude sequence are : Sudeda physophora communi2 ties Reaumuria soongorica communities Tamarix ramosisma communities and halophyte communities Reaumuria soongorica communities and Haloxylon ammodendron communities in turn. Reaumuria soongorica is the widely distributed zonal vegetation in Fukang interlacing with other communities. The correlation anal2 ysis shows that relationships between the degree of soil salinity and plant community coverage abundance and all diversity indices are not significant. The changes of soil salinity have significant influence on the com2 ponents of plant communities especially the dominant species and constructive species as well as on the dis2 tribution of different communities and succession. : ; : : : ( G ) : Tsinghua Tongfang Optical Disc Co. Ltd. All rights reserved.

2 24 3 : 43 Key words : Fukang Oasis ; Salinisation ; Plant community ; Correlation 0 0m 2 4 m 2 : ; ph = [ 2 ] Π : = ( + + )Π3 = ( )Π4 22 ph ( 983) 5 ;ph SM20 ; cm ph [0 ] : Shannon2Wiener ( H ) H = - P i ln P i Simpson ( D) D = - P 2 i Pielou ( J sw ) J sw = H Π [3 4 ] ln S Margalef ( M a ) M a = ( S - )Π log 2 N P i = N i ΠN N i 222 ; S km ( GPS ) ; 500m Tsinghua Tongfang Optical Disc Co. Ltd. All rights reserved. 3 i ; N 3

3 cm ph [5 6 ] 9 Table Classification of soil salinisation if Fukang oasis ( %) (ms cm - ) ph < 0. 3 < ( ) ( 2 3 ) (2 7) ( 6) (3 4) - ( ) (3 ) ( 4) ( 5 3 4) ( ) (2 2) (2 3) ( 9) - ( ) - ( ) - ( ) 8 > ( 3 2 4) ( 7) (2 6) (3 7) : 268 % ph 75 ph : Tsinghua Tongfang Optical Disc Co. Ltd. All rights reserved.

4 24 3 : 45 ( Suaeda acuminata) ( 3) 3 ( 9 ) ( ) Fig. Change of total salt content from south to north 33 ( 60) ( 44 %) 9 Shannon2Wiener ( H ) ( ( Reaumuria soongorica) ( Tamar2 ix ramosissima) ( Kalidium foliatum) ( Anabasis aphylla) ( Suaeda phy2 sophora) ( Haloxylon am2 modendron) Margalef ( Ma ) 45 Simpson (D) Pielou 67 ) (Jsw) Shannon2Wiener ( H ) : ( Salsola passerina) ( Bassia sedoides) ( Halocnemum strobilaceum) Tsinghua Tongfang Optical Disc Co. Ltd. All rights reserved.

5 Table 2 Component of plant communities and the important value of species in Fukang Xinjiang Autonomous Region ( Reaumuria soongorica) ( Tamarix ramosissima) ( Nitraria rovorowskii) ( Haloxylon ammodendron) ( Suaeda physophora) ( Kalidium foliatum) ( Halocnemum strobilaceum) 66. ( Kalidium. gracile) ( Salsola passerina) ( Anabasis aphylla) ( A. eriopoda) ( Suaeda acuminata) ( ceratocarpus arenarius) ( Artemisia borotalense) ( Borszczowia aralocaspica) ( Bassia dasyphylla) ( Bassia sedoides) ( Petrosimonia sibirica) ( Phragmites austrslis) ( Panaderia turkestanica) : Form. Haloxylon ammodendron ; 2 Form. Reaumuria soongorica ;3 Form. Kalidium foliatum ; 4 Form. Tamarix ramosissima ; 5 Form. Suaeda acuminata ;6 Form. Bassia sedoides ;7 Form. Suaeda physophora 3 Table 3 Diversity indices of different communities H Ma Jsw D ph 2 ph Shannon Simpson ( P = P = 000) ph 85 Shannon Simpson ph ( 4) Pielou Shannon2Weirner ( H ) Margalef (Ma) Simpson : 2 % 4 Table 4 Correlation coefficient matrix of soil conductance salt content and plant community diversity indices H Ma Jsw D () : Tsinghua Tongfang Optical Disc Co. Ltd. All rights reserved.

6 24 3 : 47 2 ph Fig. 2 Correlation of soil ph and plant community diversity (4) (2) : 2000 (3) ph 85 Shannon Simpson! ph Margalef Pielou ( References) : [2 ] [ ]. [J ] () : YANG Jin2song. Prospects for Soil Salinisation [ J ]. Soil () : Tsinghua Tongfang Optical Disc Co. Ltd. All rights reserved.. [J ] (2) : WANGJun2hou SI Shou2xia. Groundwater in Artificial Oasis the North2east Fringe of Ulan Bub Desert [J ]. Journal of Arid Land Resources and Environment (2) : 9 29.

7 [3 ]. Modern History. In : Annals of Classification and Gradation of [J ]. 990 : GAO Zhi2 fang ZHAO Yan. Salinity of Shallow Layer Groundwater in Fu2 kang Desert Ecological Station and its Adjacent Areas[J ]. Arid Zone Research 990 Supplement : [4 ]. [J ] (2) : [J ]. 990 : 6 3. J IANG Han2rong LI Shu2gang. Soil Features in Fukang Desert Ecological Station and its Adjacent Areas[J ]. Arid Zone Research 990 Supplement : 6 3. [5 ]. [ A]. [J ] () : ZHANG Wei2zheng.. Relationship between Grassland Vegetation Degeneration and Soil [ C]. : LI Shu2 gang WANG Zhou2qiong. Gradation of Soil Basification in Desert. In : Annals of Classification and Gradation of Salinized Soil in China [ A ]. Edited by : Special Commission of Salinized Soil of Chinese Soil Society. Jiangsu Science and Technology Press [6 ]. [ M]. : [A].. Special Commission of Biodiversity Chinese Academy of Scienc2 [ C]. : es. Theory and methodology of Biodiversity [ M]. Beijing :China LIU Shu2yao XIE Yi2ming. Primary Foundations for Salinized Soil Classification and Gradation of Huanghe Delta in Salinized Soil in China [ A ]. Edited by : Special Commission of Salinized Soil of Chinese Soil Society. Jiangsu Science and Techn2 ology Press [7 ]. WU Zhi2fen ZHAO Shan2lun ZHANG Xue2lei. Correlation be2 tween Halophytic Vegetation and Soil Salinity in Huanghe Delta [J ]. Acta Phytoeclogica Sinica (2) : [8 ]. Salinisation in Songnen Plain [ J ]. Acta Phytoeclogica Sinica () : [9 ] Wilson J B Lee W G &Mark A F. Species diversity in relation to ultramafic substrate and to altitude in southwestern New Zealand. Vegetatio :5 20. [0 ]. Science and Technology Press Tsinghua Tongfang Optical Disc Co. Ltd. All rights reserved.

Σχετικά έγγραφα

Quick algorithm f or computing core attribute

24 5 Vol. 24 No. 5 Cont rol an d Decision 2009 5 May 2009 : 100120920 (2009) 0520738205 1a, 2, 1b (1. a., b., 239012 ; 2., 230039) :,,.,.,. : ; ; ; : TP181 : A Quick algorithm f or computing core attribute