Landscape Heterogeneity and Net Primary Productivity (NPP) of Mountain-Oasis-Desert Ecosystems in Western China

Jie Zhang; Xiaoling Pan; Zhiqiang Gao; Wei Gao; Suling Zhao; Qingdong Shi; Guanghui Lv

Landscape Heterogeneity and Net Primary Productivity (NPP) of Mountain-Oasis-Desert Ecosystems in Western China

Jie Zhang^*
, Xiaoling Pan
, Zhiqiang Gao
, Wei Gao
, Suling Zhao
, Qingdong Shi
, Guanghui Lv

^*Corresponding author for this work

Xinjiang University
Intl. Ctr. D.A.-R.S.D.A./S.-A.L.
Nanjing University
CAS - Institute of Geographical Sciences and Natural Resources Research
Colorado State University
Resource21, LLC

Research output: Contribution to journal › Conference article › peer-review

7 Scopus citations

Abstract

This study was conducted to develop an appropriate assessment technique to define impact of mountain-desert-oasis ecosystem on net primary productivity (NPP) in northern foothills of Tianshan Mountains. Geographic Information System (GIS) was used to estimate land use/land cover of the mountain, desert and oasis zones. An ecological process model was used to estimate NPP by using data entirely derived from satellite. The results show that landscape heterogeneity was important factor to affect NPP values in mountain-desert-oasis ecosystem. Simulated results indicated a total annual NPP of 1.5081×10 ¹⁴g C for selected transect in 2002. There was 32.67% of total NPP which came from oasis areas, 28.16% from alpine meadows areas, 9.15% from forests area. Mean NPP values over the selected transect was 150.29 g C m ^-2 year ^-1 in 2002. However, NPP values varied greatly with different geography and season.

Original language	English
Pages (from-to)	302-312
Number of pages	11
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5153
State	Published - 2003
Externally published	Yes
Event	Ecosystems Dynamics, Agricultural Remote Sensing and Modeling, and Site - Specific Agriculture - San Diego, CA, United States Duration: 7 Aug 2003 → 7 Aug 2003

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 15 Life on Land

Keywords

Desert
GIS
Heterogeneity
Land use/land cover
Landscape structure
Net primary productivity
Oasis
Remote sensing

Cite this

@article{8c089992159741e8b96d04f60a64609e,

title = "Landscape Heterogeneity and Net Primary Productivity (NPP) of Mountain-Oasis-Desert Ecosystems in Western China",

abstract = "This study was conducted to develop an appropriate assessment technique to define impact of mountain-desert-oasis ecosystem on net primary productivity (NPP) in northern foothills of Tianshan Mountains. Geographic Information System (GIS) was used to estimate land use/land cover of the mountain, desert and oasis zones. An ecological process model was used to estimate NPP by using data entirely derived from satellite. The results show that landscape heterogeneity was important factor to affect NPP values in mountain-desert-oasis ecosystem. Simulated results indicated a total annual NPP of 1.5081{\texttimes}10 14g C for selected transect in 2002. There was 32.67\% of total NPP which came from oasis areas, 28.16\% from alpine meadows areas, 9.15\% from forests area. Mean NPP values over the selected transect was 150.29 g C m -2 year -1 in 2002. However, NPP values varied greatly with different geography and season.",

keywords = "Desert, GIS, Heterogeneity, Land use/land cover, Landscape structure, Net primary productivity, Oasis, Remote sensing",

author = "Jie Zhang and Xiaoling Pan and Zhiqiang Gao and Wei Gao and Suling Zhao and Qingdong Shi and Guanghui Lv",

year = "2003",

language = "英语",

volume = "5153",

pages = "302--312",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

note = "Ecosystems Dynamics, Agricultural Remote Sensing and Modeling, and Site - Specific Agriculture ; Conference date: 07-08-2003 Through 07-08-2003",

}

TY - JOUR

T1 - Landscape Heterogeneity and Net Primary Productivity (NPP) of Mountain-Oasis-Desert Ecosystems in Western China

AU - Zhang, Jie

AU - Pan, Xiaoling

AU - Gao, Zhiqiang

AU - Gao, Wei

AU - Zhao, Suling

AU - Shi, Qingdong

AU - Lv, Guanghui

PY - 2003

Y1 - 2003

N2 - This study was conducted to develop an appropriate assessment technique to define impact of mountain-desert-oasis ecosystem on net primary productivity (NPP) in northern foothills of Tianshan Mountains. Geographic Information System (GIS) was used to estimate land use/land cover of the mountain, desert and oasis zones. An ecological process model was used to estimate NPP by using data entirely derived from satellite. The results show that landscape heterogeneity was important factor to affect NPP values in mountain-desert-oasis ecosystem. Simulated results indicated a total annual NPP of 1.5081×10 14g C for selected transect in 2002. There was 32.67% of total NPP which came from oasis areas, 28.16% from alpine meadows areas, 9.15% from forests area. Mean NPP values over the selected transect was 150.29 g C m -2 year -1 in 2002. However, NPP values varied greatly with different geography and season.

AB - This study was conducted to develop an appropriate assessment technique to define impact of mountain-desert-oasis ecosystem on net primary productivity (NPP) in northern foothills of Tianshan Mountains. Geographic Information System (GIS) was used to estimate land use/land cover of the mountain, desert and oasis zones. An ecological process model was used to estimate NPP by using data entirely derived from satellite. The results show that landscape heterogeneity was important factor to affect NPP values in mountain-desert-oasis ecosystem. Simulated results indicated a total annual NPP of 1.5081×10 14g C for selected transect in 2002. There was 32.67% of total NPP which came from oasis areas, 28.16% from alpine meadows areas, 9.15% from forests area. Mean NPP values over the selected transect was 150.29 g C m -2 year -1 in 2002. However, NPP values varied greatly with different geography and season.

KW - Desert

KW - GIS

KW - Heterogeneity

KW - Land use/land cover

KW - Landscape structure

KW - Net primary productivity

KW - Oasis

KW - Remote sensing

UR - https://www.scopus.com/pages/publications/1842427670

M3 - 会议文章

AN - SCOPUS:1842427670

SN - 0277-786X

VL - 5153

SP - 302

EP - 312

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Ecosystems Dynamics, Agricultural Remote Sensing and Modeling, and Site - Specific Agriculture

Y2 - 7 August 2003 through 7 August 2003

ER -

Landscape Heterogeneity and Net Primary Productivity (NPP) of Mountain-Oasis-Desert Ecosystems in Western China

Abstract

UN SDGs

Keywords

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